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Birch reduction

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Peters, Byron K.; Rodriguez, Kevin X.; Reisberg, Solomon H.; Beil, Sebastian B.; Hickey, David P.; Kawamata, Yu; Collins, Michael; Starr, Jeremy; Chen, Longrui; Udyavara, Sagar; Klunder, Kevin; Gorey, Timothy J.; Anderson, Scott L.; Neurock, Matthew; Minteer, Shelley D.; Baran, Phil S. (21 February
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site which was most negative and thus most likely to protonate. But the situation remained uncertain, because computations remained highly sensitive to transition geometry. Worse, HĂŒckel orbital and unrestricted Hartree-Fock computations gave conflicting answers. Burnham, in 1969, concluded that
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The directing effects of naphthalene substituents remain relatively unstudied theoretically. Substituents adjacent to the bridge appear to direct reduction to the unsubstituted ring; ÎČ substituents (one bond further) tend to direct reduction to the substituted ring.
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protonation. The method began with the premise that carbanions are much more basic than the corresponding radical anions and thus protonate less selectively. Correspondingly, the two protonations in Birch reduction should exhibit an
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The case with electron-withdrawing groups is obvious, because the Birch alkylation serves as a trap for the penultimate dianion D. This dianion appears even in alcohol-free reactions. Thus the initial protonation is
603: 467:. The reduction can also be powered by an external potential or sacrificial anode (magnesium or aluminum), but then alkali metal salts are necessary to colocate the reactants via complexation. 684:, a position endorsed by Krapcho and Bothner-By. These conclusions were challenged by Zimmerman in 1961, who computed electron densities of the radical and diene anions, revealing that the 611: 2987: 1952:
Birch, A. J. (1992). "Steroid hormones and the Luftwaffe. A venture into fundamental strategic research and some of its consequences: The Birch reduction becomes a birth reduction".
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Guo, Z.; Schultz, A. G. (2001). "Organic synthesis methodology. Preparation and diastereoselective birch reduction-alkylation of 3-substituted 2-methyl-2,3-dihydroisoindol-1-ones".
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Bachi, J. W.; Epstein, Y.; Herzberg-Minzly, H.; Loewnenthal, J. E. (1969). "Synthesis of compounds related to gibberellic acid. III. Analogs of ring a of the gibberellins".
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Garst, Michael E.; Lloyd J.; Shervin; N. Andrew; Natalie C.; Alfred A.; et al. (2000). "Reductions with Lithium in Low Molecular Weight Amines and Ethylenediamine".
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Birch, A. J.; Hinde, A. L.; Radom, L. (1980). "A theoretical approach to the Birch reduction. Structures and stabilities of the radical anions of substituted benzenes".
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The second reduction and protonation also poses mechanistic questions. Thus there are three resonance structures for the carbanion (labeled B, C and D in the picture).
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protonation was preferred as late as 1996, Zimmerman and Wang had won the day: modern textbooks unequivocally agree that electron-donating substituents promote
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solvents. Unlike traditional Birch reduction, the reaction can be conducted at temperatures higher than the boiling point of ammonia (−33 °C).
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Clive, Derrick L. J. & Sunasee, Rajesh (2007). "Formation of Benzo-Fused Carbocycles by Formal Radical Cyclization onto an Aromatic Ring".
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Birch, A. J.; Radom, L. (1980). "A theoretical approach to the Birch reduction. Structures and stabilities of cyclohexadienyl radicals".
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to account for varying interatomic distances, produces maximum electron density at the central atom 1, a result confirmed by more modern
4698: 3898: 2642: 721:: in a protium–deuterium medium, the radical anion should preferentially protonate and the carbanion deuterate. Indeed, a variety of 327:
Simple HĂŒckel computations lead to equal electron densities at the three atoms 1, 3 and 5, but asymmetric bond orders. Modifying the
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position (depending on substituents) to give the final diene. The residual double bonds do not stabilize further radical additions.
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Wilds, A. L.; Nelson, N. A. (1953). "A Superior Method for Reducing Phenol Ethers to Dihydro Derivatives and Unsaturated Ketones".
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Krapcho, A. P.; Bothner-By, A. A. (1959). "Kinetics of the Metal-Ammonia-Alcohol Reductions of Benzene and Substituted Benzenes1".
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Birch, A. J.; Smith, H. (1958). "Reduction by metal–amine solutions: applications in synthesis and determination of structure".
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Wooster, C. B.; Godfrey, K. L. (1937). "Mechanism of the Reduction of Unsaturated Compounds with Alkali Metals and Water".
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Caine, D. (1976). "Reduction and Related Reactions of α,ÎČ-Unsaturated Carbonyl Compounds with Metals in Liquid Ammonia".
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protonation; frontier orbital densities, most analogous to the traditional computations used in past studies, did not.
218:– first order in the aromatic, first order in the alkali metal, and first order in the alcohol. This requires that the 1189:
Donohoe, Timothy J. & House, David (2002). "Ammonia Free Partial Reduction of Aromatic Compounds Using Lithium Di-
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Birch, A. J.; Mukherji, S. M. (1949). "Reduction by dissolving metals. Part VI. Some applications in synthesis".
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Mander, L. N. (1991). "Partial Reduction of Aromatic Rings by Dissolving Metals and by Other Methods".
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Solvated electrons will preferentially reduce sufficiently electronegative functional groups, such as
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The reaction was difficult to understand mechanistically, with controversy lasting into the 1990s.
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solution, the principal products are bicyclodec-(1,9)-ene, bicyclodec-(1,2)-ene and bicyclodecane.
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Birch, A. J.; Nasipuri, D. (1959). "Reaction mechanisms in reduction by metal-ammonia solutions".
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In the earlier 1990s, Zimmerman and Wang developed an experiment technique to distinguish between
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Zimmerman, H. E. (1963). "Base-Catalyzed Rearrangements". In De Mayo, P. (ed.).
426:) kinetically protonate, they do so at the center to afford the ÎČ,Îł-unsaturated carbonyl. 185:, which then abstracts a proton from the alcohol. The process then repeats at either the 8: 5292: 5277: 4923: 4898: 4883: 4878: 4608: 4563: 4548: 4438: 4418: 4313: 4198: 4183: 4028: 3973: 3963: 3928: 3693: 3568: 3543: 3455: 3311: 3296: 3281: 3102: 3047: 2817: 2667: 2612: 2483: 2398: 2258: 2183: 1870:
Burnham, D. R. (1969). "Orientation in the mechanism of the Birch reduction of anisole".
1777:"Alkylation of the Anion from Birch Reduction of o-Anisic Acid: 2-Heptyl-2-Cyclohexenone" 1447: 1323:"Alkylation of the anion from Birch reduction of o-Anisic acid: 2-Heptyl-2-cyclohexenone" 464: 298: 128: 93: 5302: 3953: 3137: 2328: 1281: 5041: 4991: 4961: 4823: 4613: 4403: 4288: 4223: 4213: 3978: 3908: 3873: 3868: 3848: 3843: 3788: 3698: 3548: 3410: 3400: 3306: 3092: 3037: 2967: 2887: 2782: 2682: 2617: 2542: 2388: 2253: 2188: 2173: 2012: 1977: 1486:
Edwin M. Kaiser and Robert A. Benkeser "Δ-Octalin" Org. Synth. 1970, vol. 50, p. 88ff.
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Ecsery, Zoltan & Muller, Miklos (1961). "Reduction vitamin D2 with alkaly metals".
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alkali-metal electron donors. Variants have developed to reduce either inconvenience.
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position, subsequent investigation has revealed that protonation occurs at either the
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Zimmerman, H. E.; Wang, P. A. (1990). "The Regioselectivity of the Birch Reduction".
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The result is analogous to conjugated enolates. When those anions (but not the enol
215: 178: 101: 3773: 2016: 1981: 733:(a 1:7 ratio). Moreover, modern electron density computations now firmly indicated 198: 5312: 5157: 5127: 5071: 4996: 4928: 4683: 4633: 4478: 4283: 4058: 4053: 3998: 3988: 3763: 3573: 3553: 3523: 3420: 3356: 3341: 3172: 3127: 3117: 3107: 3002: 2982: 2977: 2962: 2957: 2837: 2832: 2772: 2757: 2747: 2592: 2582: 2448: 2438: 2338: 2333: 2308: 2248: 2100: 2059: 2002: 1961: 1929: 1908: 1879: 1852: 1817: 1757: 1730: 1701: 1648: 1629: 1610: 1591: 1572: 1553: 1526: 1487: 1414: 1293: 1285: 1237: 1202: 1139: 1118: 1035: 956: 916: 877: 866:
Rabideau, P. W.; Marcinow, Z. (1992). "The Birch Reduction of Aromatic Compounds".
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Zimmerman, H. E.; Wang, P. A. (1993). "Regioselectivity of the Birch Reduction".
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attack, corresponding to the location of greatest electron density in a neutral
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Advanced Organic Chemistry: Reactions, Mechanisms, and Structure, 3rd edition
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Paufler, R. M. (1960) Ph.D. Thesis, Northwestern University, Evanston, IL.
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be the conversion of radical anion B to the cyclohexadienyl radical C.
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Birch, A. J. (1946). "Reduction by dissolving metals. Part III".
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A solution of sodium in liquid ammonia consists of the intensely blue
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Birch, A. J. (1945). "Reduction by dissolving metals. Part II".
1320: 668: 515: 174: 138:, Birch reduction does not reduce the aromatic ring all the way to a 132: 1546:
Birch, A. J. (1944). "Reduction by dissolving metals. Part I".
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Zimmerman, H. E. (1961). "Orientation in Metal Ammonia Reductions".
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Birch, Arthur J. (1947). "Reduction by dissolving metals. Part V".
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To avoid direct alkali, there are chemical alternatives, such as
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That step also determines the structure of the product. Although
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Birch, A. J. (1947). "Reduction by dissolving metals. Part IV".
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For electron-donating substituents, Birch initially proposed
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Carey, Francis A.; Sundberg, Richard J. (2007).
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Organic reaction used to convert arenes to cyclohexadienes
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For the reduction of naphthalene with lithium in a mixed
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Many amines serve as alternative solvents: for example,
806: — another reaction using solvated electrons 701:
substitutions would occur with a slight preference for
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formed in the Birch reduction is trapped by a suitable
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originally argued that the protonation occurred at the
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attack; Birch and Radom, in 1980, concluded that both
261:(1). Electron-withdrawing substituents tend to induce 1919: 1807: 1718: 672:
Benzoic acid reduction, including possible alkylation
96:. The reaction is named after the Australian chemist 5203:
Erlenmeyer–Plöchl azlactone and amino-acid synthesis
1640: 650:later discovered that lithium gives better yields. 972: 970: 1321:Taber, D. F.; Gunn, B. P.; Ching Chiu, I. (1983). 1054: 740:Although Birch remained reluctant to concede that 4264:Divinylcyclopropane-cycloheptadiene rearrangement 1673: 1661: 5338: 1621: 1025: 967: 2057: 1775:Taber, D. F.; Gunn, B.P; Ching Chiu, I (1983). 991: 989: 987: 985: 88:is an organic reaction that is used to convert 4524:Thermal rearrangement of aromatic hydrocarbons 3158:Thermal rearrangement of aromatic hydrocarbons 1869: 1516: 5253:Lectka enantioselective beta-lactam synthesis 2513: 2043: 995: 904: 5032:Inverse electron-demand Diels–Alder reaction 2853:Heterogeneous metal catalyzed cross-coupling 1988: 1951: 1602: 982: 828: 4374:Lobry de Bruyn–Van Ekenstein transformation 1537: 1093:. New York: Interscience. pp. 350–352. 2050: 2036: 1991:"The Birch reduction in organic synthesis" 1890: 1102: 1100: 1084: 1082: 689:the trustworthiest computations supported 265:protonation, as shown in the reduction of 257:protonation, as shown in the reduction of 253:position. Electron donors tend to induce 4864:Petrenko-Kritschenko piperidone synthesis 4319:Fritsch–Buttenberg–Wiechell rearrangement 2006: 1942: 1297: 1088: 1052: 1021: 1019: 1017: 942: 940: 757: 5027:Intramolecular Diels–Alder cycloaddition 1519:Journal of the American Chemical Society 1459:Vogel, E.; Klug, W.; Breuer, A. (1974). 1377:Paquette, L. A.; Barrett, J. H. (1969). 667: 609: 601: 530: 224: 197: 1097: 1079: 1046: 169:Reaction mechanism and regioselectivity 5339: 5047:Metal-centered cycloaddition reactions 4699:Debus–Radziszewski imidazole synthesis 2643:Bodroux–Chichibabin aldehyde synthesis 1349:Kuehne, M. E.; Lambert, B. F. (1963). 1057:Quantum Mechanics for Organic Chemists 1014: 937: 313:Secondary protonation regioselectivity 5193:Diazoalkane 1,3-dipolar cycloaddition 5097:Vinylcyclopropane (5+2) cycloaddition 5002:Diazoalkane 1,3-dipolar cycloaddition 4774:Hurd–Mori 1,2,3-thiadiazole synthesis 4269:Dowd–Beckwith ring-expansion reaction 3436:Hurd–Mori 1,2,3-thiadiazole synthesis 2512: 2349:LFER solvent coefficients (data page) 2031: 1679: 1667: 1583: 1564: 1545: 1061:. New York: Academic Press. pp.  976: 751: 665:, as seen in the B-C transformation. 552: 546:forms the 1,1-cyclohexadiene product. 434:Traditional Birch reduction requires 4004:Sharpless asymmetric dihydroxylation 3241:Methoxymethylenetriphenylphosphorane 1863: 1836: 438:temperatures to liquify ammonia and 4129:Allen–Millar–Trippett rearrangement 638:. Birch's original procedure used 470: 181:add to the aromatic ring to give a 13: 5268:Nitrone-olefin (3+2) cycloaddition 5263:Niementowski quinazoline synthesis 5052:Nitrone-olefin (3+2) cycloaddition 4977:Azide-alkyne Huisgen cycloaddition 4839:Niementowski quinazoline synthesis 4594:Azide-alkyne Huisgen cycloaddition 3899:Meerwein–Ponndorf–Verley reduction 3451:Leimgruber–Batcho indole synthesis 921:10.1016/B978-0-08-052349-1.00237-7 518:to generate the least-substituted 495: 319: 281: 271: 159: 144: 14: 5368: 5092:Trimethylenemethane cycloaddition 4794:Johnson–Corey–Chaykovsky reaction 4659:Cadogan–Sundberg indole synthesis 4639:Bohlmann–Rahtz pyridine synthesis 4599:Baeyer–Emmerling indole synthesis 3406:Cadogan–Sundberg indole synthesis 2898:Johnson–Corey–Chaykovsky reaction 5188:Cook–Heilbron thiazole synthesis 5017:Hexadehydro Diels–Alder reaction 4844:Niementowski quinoline synthesis 4674:Cook–Heilbron thiazole synthesis 4619:Bischler–Möhlau indole synthesis 4529:Tiffeneau–Demjanov rearrangement 4159:Baker–Venkataraman rearrangement 3317:Horner–Wadsworth–Emmons reaction 2988:Mizoroki-Heck vs. Reductive Heck 2873:Horner–Wadsworth–Emmons reaction 2384:Neighbouring group participation 800: — the reducing agent 567:polycyclic aromatic hydrocarbons 508:electron-withdrawing substituent 429: 4724:Fiesselmann thiophene synthesis 4554:Westphalen–LettrĂ© rearrangement 4534:Vinylcyclopropane rearrangement 4364:Kornblum–DeLaMare rearrangement 4009:Epoxidation of allylic alcohols 3919:Noyori asymmetric hydrogenation 3854:Kornblum–DeLaMare rearrangement 3529:Gallagher–Hollander degradation 1801: 1768: 1741: 1712: 1685: 1510: 1496: 1480: 1452: 1433: 1398: 1370: 1342: 1314: 1256: 1221: 1182: 1161: 1152: 500:Birch Alkylation Org Synth 1990 153:An example is the reduction of 5183:Chichibabin pyridine synthesis 4669:Chichibabin pyridine synthesis 4629:Blum–Ittah aziridine synthesis 4464:Ring expansion and contraction 2733:Cross dehydrogenative coupling 898: 859: 822: 584:in low molecular weight alkyl 1: 5153:Bischler–Napieralski reaction 5111:Heterocycle forming reactions 4764:Hemetsberger indole synthesis 4624:Bischler–Napieralski reaction 4539:Wagner–Meerwein rearrangement 4509:Sommelet–Hauser rearrangement 4489:Seyferth–Gilbert homologation 4354:Ireland–Claisen rearrangement 4349:Hofmann–Martius rearrangement 4109:2,3-sigmatropic rearrangement 3724:Corey–Winter olefin synthesis 3649:Barton–McCombie deoxygenation 3292:Corey–Winter olefin synthesis 3246:Seyferth–Gilbert homologation 3113:Seyferth–Gilbert homologation 816: 524:electron-donating substituent 506:In substituted aromatics, an 123:(traditionally sodium) and a 5258:Lehmstedt–Tanasescu reaction 5218:Gabriel–Colman rearrangement 5173:Bucherer carbazole synthesis 5168:Borsche–Drechsel cyclization 5148:Bernthsen acridine synthesis 5133:Bamberger triazine synthesis 5118:Algar–Flynn–Oyamada reaction 4829:Nazarov cyclization reaction 4694:De Kimpe aziridine synthesis 4649:Bucherer carbazole synthesis 4644:Borsche–Drechsel cyclization 4414:Nazarov cyclization reaction 4394:Meyer–Schuster rearrangement 4324:Gabriel–Colman rearrangement 4074:Wolffenstein–Böters reaction 3959:Reduction of nitro compounds 3809:Grundmann aldehyde synthesis 3614:Algar–Flynn–Oyamada reaction 3023:Olefin conversion technology 3018:Nozaki–Hiyama–Kishi reaction 2813:Gabriel–Colman rearrangement 2703:Claisen-Schmidt condensation 2648:Bouveault aldehyde synthesis 1966:10.1016/0039-128X(92)90080-S 1884:10.1016/0040-4020(69)85023-4 1857:10.1016/0040-4020(59)85008-0 1230:Journal of Organic Chemistry 1195:Journal of Organic Chemistry 1053:Zimmerman, Howard E (1975). 1040:10.1016/0040-4020(61)80067-7 812: — an application 810:Synthesis of methamphetamine 214:The reaction is known to be 7: 5352:Organic reduction reactions 5233:Hantzsch pyridine synthesis 5012:Enone–alkene cycloadditions 4834:Nenitzescu indole synthesis 4754:Hantzsch pyridine synthesis 4719:Ferrario–Ackermann reaction 4369:Kowalski ester homologation 4334:Halogen dance rearrangement 4179:Benzilic acid rearrangement 3604:Akabori amino-acid reaction 3564:Von Braun amide degradation 3509:Barbier–Wieland degradation 3461:Nenitzescu indole synthesis 3441:Kharasch–Sosnovsky reaction 3332:Julia–Kocienski olefination 3236:Kowalski ester homologation 2933:Kowalski ester homologation 2908:Julia–Kocienski olefination 2663:Cadiot–Chodkiewicz coupling 2588:Aza-Baylis–Hillman reaction 2533:Acetoacetic ester synthesis 2244:Dynamic binding (chemistry) 2234:Conrotatory and disrotatory 2209:Charge remote fragmentation 882:10.1002/0471264180.or042.01 791: 774:10.1002/0471264180.or023.01 614:Modified Benkeser reduction 164:naphthalene Birch Reduction 10: 5373: 5298:Robinson–Gabriel synthesis 5248:Kröhnke pyridine synthesis 5082:Retro-Diels–Alder reaction 5022:Imine Diels–Alder reaction 4809:Kröhnke pyridine synthesis 4424:Newman–Kwart rearrangement 4399:Mislow–Evans rearrangement 4309:Fischer–Hepp rearrangement 4254:Di-π-methane rearrangement 4034:Stephen aldehyde synthesis 3769:Eschweiler–Clarke reaction 3486:Williamson ether synthesis 2803:Fujiwara–Moritani reaction 2708:Combes quinoline synthesis 2673:Carbonyl olefin metathesis 2374:More O'Ferrall–Jencks plot 2299:Grunwald–Winstein equation 2269:Electron-withdrawing group 2204:Catalytic resonance theory 1796:, vol. 7, p. 249 1442:, Institute of Chemistry, 1393:, vol. 5, p. 467 1365:, vol. 5, p. 400 1337:, vol. 7, p. 249 998:Advanced Organic Chemistry 622: 526:has the opposite effect. 5308:Urech hydantoin synthesis 5288:Pomeranz–Fritsch reaction 5213:Fischer oxazole synthesis 5110: 4947:1,3-Dipolar cycloaddition 4937: 4919:Urech hydantoin synthesis 4889:Reissert indole synthesis 4874:Pomeranz–Fritsch reaction 4804:Knorr quinoline synthesis 4734:Fischer oxazole synthesis 4664:Camps quinoline synthesis 4584:1,3-Dipolar cycloaddition 4572: 4484:Semipinacol rearrangement 4459:Ramberg–BĂ€cklund reaction 4444:Piancatelli rearrangement 4384:McFadyen–Stevens reaction 4139:Alpha-ketol rearrangement 4087: 3894:McFadyen–Stevens reaction 3839:Kiliani–Fischer synthesis 3759:Elbs persulfate oxidation 3684:Bouveault–Blanc reduction 3644:Baeyer–Villiger oxidation 3582: 3499: 3476:Schotten–Baumann reaction 3379: 3352:Ramberg–BĂ€cklund reaction 3259: 3231:Kiliani–Fischer synthesis 3211: 3073:Ramberg–BĂ€cklund reaction 3058:Pinacol coupling reaction 3053:Piancatelli rearrangement 2948:Liebeskind–Srogl coupling 2798:Fujimoto–Belleau reaction 2521: 2515:List of organic reactions 2379:Negative hyperconjugation 2124: 2066: 1351:"1,4-Dihydrobenzoic acid" 1193:-butylbiphenyl (LiDBB)". 804:Bouveault–Blanc reduction 725:aromatics exhibited less 127:source (traditionally an 78: 52:Organic Chemistry Portal 46: 21: 5283:Pictet–Spengler reaction 5198:Einhorn–Brunner reaction 5163:Boger pyridine synthesis 5057:Oxo-Diels–Alder reaction 4972:Aza-Diels–Alder reaction 4869:Pictet–Spengler reaction 4769:Hofmann–Löffler reaction 4759:Hegedus indole synthesis 4729:Fischer indole synthesis 4604:Bartoli indole synthesis 4559:Willgerodt rearrangement 4389:McLafferty rearrangement 4299:Ferrier carbocyclization 4114:2,3-Wittig rearrangement 4104:1,2-Wittig rearrangement 3944:Parikh–Doering oxidation 3934:Oxygen rebound mechanism 3599:Adkins–Peterson reaction 3491:Yamaguchi esterification 3431:Hegedus indole synthesis 3396:Bartoli indole synthesis 3267:Bamford–Stevens reaction 3183:Weinreb ketone synthesis 3143:Stork enamine alkylation 2918:Knoevenagel condensation 2788:Ferrier carbocyclization 2678:Castro–Stephens coupling 2304:Hammett acidity function 2294:Free-energy relationship 2239:Curtin–Hammett principle 2224:Conformational isomerism 1492:10.15227/orgsyn.050.0088 1091:Molecular Rearrangements 632:Dyson Perrins Laboratory 539:to a Birch reduction of 157:in ammonia and ethanol: 5347:Organic redox reactions 5243:Knorr pyrrole synthesis 5178:Bucherer–Bergs reaction 5123:Allan–Robinson reaction 5102:Wagner-Jauregg reaction 4894:Ring-closing metathesis 4819:Larock indole synthesis 4799:Knorr pyrrole synthesis 4654:Bucherer–Bergs reaction 4519:Stieglitz rearrangement 4499:SkattebĂžl rearrangement 4469:Ring-closing metathesis 4329:Group transfer reaction 4294:Favorskii rearrangement 4234:Cornforth rearrangement 4164:Bamberger rearrangement 4069:Wolff–Kishner reduction 3889:Markó–Lam deoxygenation 3784:Fleming–Tamao oxidation 3779:Fischer–Tropsch process 3466:Oxymercuration reaction 3446:Knorr pyrrole synthesis 3272:Barton–Kellogg reaction 3178:Wagner-Jauregg reaction 3098:Ring-closing metathesis 3088:Reimer–Tiemann reaction 3078:Rauhut–Currier reaction 2993:Nef isocyanide reaction 2953:Malonic ester synthesis 2923:Knorr pyrrole synthesis 2858:High dilution principle 2793:Friedel–Crafts reaction 2728:Cross-coupling reaction 2653:Bucherer–Bergs reaction 2638:Blanc chloromethylation 2628:Blaise ketone synthesis 2603:Baylis–Hillman reaction 2598:Barton–Kellogg reaction 2573:Allan–Robinson reaction 2479:Woodward–Hoffmann rules 2214:Charge-transfer complex 2008:10.1351/pac199668030553 1290:10.1126/science.aav5606 1171:Magyar KĂ©miai FolyĂłirat 5208:Feist–Benary synthesis 4982:Bradsher cycloaddition 4952:4+4 Photocycloaddition 4909:Simmons–Smith reaction 4854:PaternĂČ–BĂŒchi reaction 4714:Feist–Benary synthesis 4704:Dieckmann condensation 4454:Pummerer rearrangement 4434:Oxy-Cope rearrangement 4409:Myers allene synthesis 4359:Jacobsen rearrangement 4274:Electrocyclic reaction 4249:Demjanov rearrangement 4204:Buchner ring expansion 4174:Beckmann rearrangement 4154:Aza-Cope rearrangement 4149:Arndt–Eistert reaction 4124:Alkyne zipper reaction 4044:Transfer hydrogenation 4019:Sharpless oxyamination 3994:Selenoxide elimination 3879:Lombardo methylenation 3804:Griesbaum coozonolysis 3714:Corey–Itsuno reduction 3689:Boyland–Sims oxidation 3629:Angeli–Rimini reaction 3277:Boord olefin synthesis 3221:Arndt–Eistert reaction 3213:Homologation reactions 3013:Nitro-Mannich reaction 2928:Kolbe–Schmitt reaction 2738:Cross-coupling partner 2658:Buchner ring expansion 2578:Arndt–Eistert reaction 2344:Kinetic isotope effect 2091:Rearrangement reaction 673: 615: 607: 547: 501: 324: 286: 276: 234: 211: 165: 150: 115:(traditionally liquid 41:Organic redox reaction 5067:Pauson–Khand reaction 4904:Sharpless epoxidation 4859:Pechmann condensation 4739:FriedlĂ€nder synthesis 4689:Davis–Beirut reaction 4544:Wallach rearrangement 4514:Stevens rearrangement 4449:Pinacol rearrangement 4429:Overman rearrangement 4344:Hofmann rearrangement 4339:Hayashi rearrangement 4304:Ferrier rearrangement 4259:Dimroth rearrangement 4244:Curtius rearrangement 4239:Criegee rearrangement 4219:Claisen rearrangement 4209:Carroll rearrangement 4144:Amadori rearrangement 4134:Allylic rearrangement 4014:Sharpless epoxidation 3749:Dess–Martin oxidation 3674:Bohn–Schmidt reaction 3534:Hofmann rearrangement 3337:Kauffmann olefination 3260:Olefination reactions 3198:Wurtz–Fittig reaction 3033:Palladium–NHC complex 2913:Kauffmann olefination 2868:Homologation reaction 2718:Corey–House synthesis 2698:Claisen rearrangement 2494:Yukawa–Tsuno equation 2454:Swain–Lupton equation 2434:Spherical aromaticity 2369:Möbius–HĂŒckel concept 2154:Aromatic ring current 2116:Substitution reaction 1989:Birch, A. J. (1996). 1461:"1,6-Methanoannulene" 671: 613: 606:The Benkeser reaction 605: 534: 514:, will stabilize the 499: 323: 285: 275: 228: 201: 163: 148: 5273:Paal–Knorr synthesis 5143:Barton–Zard reaction 5087:Staudinger synthesis 5037:Ketene cycloaddition 5007:Diels–Alder reaction 4987:Cheletropic reaction 4967:Alkyne trimerisation 4849:Paal–Knorr synthesis 4814:Kulinkovich reaction 4789:Jacobsen epoxidation 4709:Diels–Alder reaction 4504:Smiles rearrangement 4494:Sigmatropic reaction 4379:Lossen rearrangement 4229:Corey–Fuchs reaction 4194:Boekelheide reaction 4189:Bergmann degradation 4119:Achmatowicz reaction 3904:Methionine sulfoxide 3704:Clemmensen reduction 3664:Bergmann degradation 3594:Acyloin condensation 3559:Strecker degradation 3514:Bergmann degradation 3481:Ullmann condensation 3347:Peterson olefination 3322:Hydrazone iodination 3302:Elimination reaction 3203:Zincke–Suhl reaction 3123:Sonogashira coupling 3083:Reformatsky reaction 3043:Peterson olefination 3008:Nierenstein reaction 2938:Kulinkovich reaction 2753:Diels–Alder reaction 2713:Corey–Fuchs reaction 2693:Claisen condensation 2563:Alkyne trimerisation 2538:Acyloin condensation 2504:ÎŁ-bishomoaromaticity 2464:Thorpe–Ingold effect 2076:Elimination reaction 1735:10.1039/qr9581200017 1653:10.1039/jr9490002531 1634:10.1039/jr9470001642 1615:10.1039/jr9470000102 1596:10.1039/jr9460000593 1577:10.1039/jr9450000809 1558:10.1039/JR9440000430 1379:"2,7-Dimethyloxepin" 636:University of Oxford 361:HĂŒckel (1st approx) 297:, but do not attack 5293:Prilezhaev reaction 5278:Pellizzari reaction 4957:(4+3) cycloaddition 4924:Van Leusen reaction 4899:Robinson annulation 4884:Pschorr cyclization 4879:Prilezhaev reaction 4609:Bergman cyclization 4564:Wolff rearrangement 4549:Weerman degradation 4439:Pericyclic reaction 4419:Neber rearrangement 4314:Fries rearrangement 4199:Brook rearrangement 4184:Bergman cyclization 4029:Staudinger reaction 3974:Rosenmund reduction 3964:Reductive amination 3929:Oppenauer oxidation 3719:Corey–Kim oxidation 3694:Cannizzaro reaction 3569:Weerman degradation 3544:Isosaccharinic acid 3456:Mukaiyama hydration 3312:Hofmann elimination 3297:Dehydrohalogenation 3282:Chugaev elimination 3103:Robinson annulation 3048:Pfitzinger reaction 2818:Gattermann reaction 2763:Wulff–Dötz reaction 2743:Dakin–West reaction 2668:Carbonyl allylation 2613:Bergman cyclization 2399:Kennedy J. P. Orton 2319:Hammond's postulate 2289:Flippin–Lodge angle 2259:Electromeric effect 2184:Beta-silicon effect 2169:Baker–Nathan effect 1934:10.1021/ja00532a016 1913:10.1021/ja00530a012 1762:10.1021/jo00838a030 1706:10.1021/ja01117a064 1531:10.1021/ja01282a504 1282:2019Sci...363..838P 1144:10.1021/ja00059a015 1123:10.1021/ja00159a078 961:10.1021/ja01523a042 838:, New York: Wiley, 465:M-SG reducing agent 229:Birch reduction of 202:Birch reduction of 149:The Birch reduction 94:1,4-cyclohexadienes 5042:McCormack reaction 4992:Conia-ene reaction 4824:Madelung synthesis 4614:Biginelli reaction 4404:Mumm rearrangement 4289:Favorskii reaction 4224:Cope rearrangement 4214:Chan rearrangement 3979:Rubottom oxidation 3909:Miyaura borylation 3874:Lipid peroxidation 3869:Lindgren oxidation 3849:Kornblum oxidation 3844:Kolbe electrolysis 3789:Fukuyama reduction 3699:Carbonyl reduction 3549:Marker degradation 3411:Diazonium compound 3401:Boudouard reaction 3380:Carbon-heteroatom 3307:Grieco elimination 3093:Rieche formylation 3038:Passerini reaction 2968:Meerwein arylation 2888:Hydroxymethylation 2783:Favorskii reaction 2683:Chan rearrangement 2618:Biginelli reaction 2543:Aldol condensation 2389:2-Norbornyl cation 2364:Möbius aromaticity 2359:Markovnikov's rule 2254:Effective molarity 2199:BĂŒrgi–Dunitz angle 2189:Bicycloaromaticity 908:Compr. Org. Synth. 752:Additional reading 674: 616: 608: 559:Benkeser reduction 553:Benkeser reduction 548: 502: 329:exchange integrals 325: 287: 277: 235: 220:rate-limiting step 212: 179:solvated electrons 166: 151: 5334: 5333: 5330: 5329: 5326: 5325: 5318:Wohl–Aue reaction 4962:6+4 Cycloaddition 4779:Iodolactonization 4099:1,2-rearrangement 4064:Wohl–Aue reaction 3984:Sabatier reaction 3949:Pinnick oxidation 3914:Mozingo reduction 3859:Leuckart reaction 3814:Haloform reaction 3729:Criegee oxidation 3709:Collins oxidation 3659:Benkeser reaction 3654:Bechamp reduction 3624:Andrussow process 3609:Alcohol oxidation 3519:Edman degradation 3426:Haloform reaction 3375: 3374: 3362:Takai olefination 3327:Julia olefination 3153:Takai olefination 3028:Olefin metathesis 2903:Julia olefination 2828:Grignard reaction 2808:Fukuyama coupling 2723:Coupling reaction 2688:Chan–Lam coupling 2558:Alkyne metathesis 2553:Alkane metathesis 2409:Phosphaethynolate 2314:George S. Hammond 2274:Electronic effect 2229:Conjugated system 2111:Stereospecificity 2106:Stereoselectivity 2071:Addition reaction 2060:organic reactions 1948:See diagrams in: 1928:(12): 4074–4080. 1907:(10): 3370–3376. 1822:10.1021/jo005693g 1794:Collected Volumes 1782:Organic Syntheses 1700:(21): 5360–5365. 1473:Collected Volumes 1466:Organic Syntheses 1419:10.1021/ol070849l 1413:(14): 2677–2680. 1391:Collected Volumes 1384:Organic Syntheses 1363:Collected Volumes 1356:Organic Syntheses 1335:Collected Volumes 1328:Organic Syntheses 1276:(6429): 838–845. 1242:10.1021/jo0008136 1236:(21): 7098–7104. 1207:10.1021/jo0257593 1201:(14): 5015–5018. 1007:978-0-387-44899-2 955:(14): 3658–3666. 930:978-0-08-052349-1 798:Solvated electron 537:1,4-dibromobutane 420: 419: 206:, also available 102:organic reduction 100:and involves the 82: 81: 5364: 5313:Wenker synthesis 5303:StollĂ© synthesis 5158:Bobbitt reaction 5128:Auwers synthesis 5072:Povarov reaction 4997:Cyclopropanation 4935: 4934: 4929:Wenker synthesis 4684:Darzens reaction 4634:Bobbitt reaction 4479:Schmidt reaction 4284:Enyne metathesis 4059:Whiting reaction 4054:Wharton reaction 3999:Shapiro reaction 3989:Sarett oxidation 3954:PrĂ©vost reaction 3764:Emde degradation 3574:Wohl degradation 3554:Ruff degradation 3524:Emde degradation 3421:Grignard reagent 3357:Shapiro reaction 3342:McMurry reaction 3209: 3208: 3173:Ullmann reaction 3138:StollĂ© synthesis 3128:Stetter reaction 3118:Shapiro reaction 3108:Sakurai reaction 3003:Negishi coupling 2983:Minisci reaction 2978:Michael reaction 2963:McMurry reaction 2958:Mannich reaction 2838:Hammick reaction 2833:Grignard reagent 2773:Enyne metathesis 2758:Doebner reaction 2748:Darzens reaction 2593:Barbier reaction 2583:Auwers synthesis 2510: 2509: 2484:Woodward's rules 2449:Superaromaticity 2439:Spiroaromaticity 2339:Inductive effect 2334:Hyperconjugation 2309:Hammett equation 2249:Edwards equation 2101:Regioselectivity 2052: 2045: 2038: 2029: 2028: 2023: 2020: 2010: 1985: 1946: 1940: 1937: 1922:J. Am. Chem. Soc 1916: 1901:J. Am. Chem. Soc 1894: 1888: 1887: 1867: 1861: 1860: 1840: 1834: 1833: 1816:(6): 2154–2157. 1805: 1799: 1797: 1790: 1772: 1766: 1765: 1745: 1739: 1738: 1716: 1710: 1709: 1694:J. Am. Chem. Soc 1689: 1683: 1677: 1671: 1665: 1659: 1656: 1637: 1618: 1599: 1580: 1561: 1541: 1535: 1534: 1514: 1508: 1500: 1494: 1484: 1478: 1476: 1469: 1456: 1450: 1440:Birch Reductions 1437: 1431: 1430: 1402: 1396: 1394: 1387: 1374: 1368: 1366: 1359: 1346: 1340: 1338: 1331: 1318: 1312: 1311: 1301: 1260: 1254: 1253: 1225: 1219: 1218: 1186: 1180: 1179: 1165: 1159: 1156: 1150: 1147: 1138:(6): 2205–2216. 1132:J. Am. Chem. Soc 1126: 1117:(3): 1280–1281. 1111:J. Am. Chem. Soc 1104: 1095: 1094: 1086: 1077: 1076: 1060: 1050: 1044: 1043: 1034:(1–4): 169–176. 1023: 1012: 1011: 993: 980: 974: 965: 964: 949:J. Am. Chem. Soc 944: 935: 934: 902: 896: 895: 863: 857: 856: 826: 787: 477:Birch alkylation 471:Birch alkylation 338: 337: 303:carboxylic acids 208:in animated form 74: 59: 22:Birch reduction 19: 18: 5372: 5371: 5367: 5366: 5365: 5363: 5362: 5361: 5337: 5336: 5335: 5322: 5223:Gewald reaction 5106: 4933: 4914:Skraup reaction 4749:Graham reaction 4744:Gewald reaction 4575: 4568: 4090: 4083: 4039:Swern oxidation 4024:Stahl oxidation 3969:Riley oxidation 3924:Omega oxidation 3884:Luche reduction 3834:Jones oxidation 3799:Glycol cleavage 3794:Ganem oxidation 3739:Davis oxidation 3734:Dakin oxidation 3669:Birch reduction 3619:Amide reduction 3585: 3578: 3539:Hooker reaction 3501: 3495: 3383: 3381: 3371: 3367:Wittig reaction 3255: 3251:Wittig reaction 3226:Hooker reaction 3207: 3188:Wittig reaction 3163:Thorpe reaction 3148:Suzuki reaction 3133:Stille reaction 3068:Quelet reaction 2943:Kumada coupling 2893:Ivanov reaction 2883:Hydrovinylation 2863:Hiyama coupling 2823:Glaser coupling 2633:Blaise reaction 2623:Bingel reaction 2608:Benary reaction 2525: 2523: 2517: 2508: 2404:Passive binding 2324:Homoaromaticity 2174:Baldwin's rules 2149:Antiaromaticity 2144:Anomeric effect 2120: 2062: 2056: 2026: 1995:Pure Appl. Chem 1947: 1943: 1895: 1891: 1868: 1864: 1841: 1837: 1806: 1802: 1792: 1773: 1769: 1746: 1742: 1717: 1713: 1690: 1686: 1678: 1674: 1666: 1662: 1542: 1538: 1515: 1511: 1501: 1497: 1485: 1481: 1471: 1457: 1453: 1438: 1434: 1407:Organic Letters 1403: 1399: 1389: 1375: 1371: 1361: 1347: 1343: 1333: 1319: 1315: 1261: 1257: 1226: 1222: 1187: 1183: 1166: 1162: 1157: 1153: 1105: 1098: 1087: 1080: 1073: 1051: 1047: 1024: 1015: 1008: 994: 983: 975: 968: 945: 938: 931: 903: 899: 892: 864: 860: 846: 827: 823: 819: 794: 784: 754: 729:deuterium than 648:Alfred L. Wilds 625: 555: 544:-butyl benzoate 512:carboxylic acid 491:, for example: 473: 458:ethylenediamine 432: 356:Bond Order 1–2 353:Bond Order 2–3 350:Density Atom 1 347:Density Atom 2 344:Density Atom 3 315: 279: 171: 86:Birch reduction 70: 57:birch-reduction 55: 17: 12: 11: 5: 5370: 5360: 5359: 5357:Name reactions 5354: 5349: 5332: 5331: 5328: 5327: 5324: 5323: 5321: 5320: 5315: 5310: 5305: 5300: 5295: 5290: 5285: 5280: 5275: 5270: 5265: 5260: 5255: 5250: 5245: 5240: 5235: 5230: 5228:Hantzsch ester 5225: 5220: 5215: 5210: 5205: 5200: 5195: 5190: 5185: 5180: 5175: 5170: 5165: 5160: 5155: 5150: 5145: 5140: 5138:Banert cascade 5135: 5130: 5125: 5120: 5114: 5112: 5108: 5107: 5105: 5104: 5099: 5094: 5089: 5084: 5079: 5077:Prato reaction 5074: 5069: 5064: 5059: 5054: 5049: 5044: 5039: 5034: 5029: 5024: 5019: 5014: 5009: 5004: 4999: 4994: 4989: 4984: 4979: 4974: 4969: 4964: 4959: 4954: 4949: 4943: 4941: 4932: 4931: 4926: 4921: 4916: 4911: 4906: 4901: 4896: 4891: 4886: 4881: 4876: 4871: 4866: 4861: 4856: 4851: 4846: 4841: 4836: 4831: 4826: 4821: 4816: 4811: 4806: 4801: 4796: 4791: 4786: 4781: 4776: 4771: 4766: 4761: 4756: 4751: 4746: 4741: 4736: 4731: 4726: 4721: 4716: 4711: 4706: 4701: 4696: 4691: 4686: 4681: 4676: 4671: 4666: 4661: 4656: 4651: 4646: 4641: 4636: 4631: 4626: 4621: 4616: 4611: 4606: 4601: 4596: 4591: 4586: 4580: 4578: 4570: 4569: 4567: 4566: 4561: 4556: 4551: 4546: 4541: 4536: 4531: 4526: 4521: 4516: 4511: 4506: 4501: 4496: 4491: 4486: 4481: 4476: 4471: 4466: 4461: 4456: 4451: 4446: 4441: 4436: 4431: 4426: 4421: 4416: 4411: 4406: 4401: 4396: 4391: 4386: 4381: 4376: 4371: 4366: 4361: 4356: 4351: 4346: 4341: 4336: 4331: 4326: 4321: 4316: 4311: 4306: 4301: 4296: 4291: 4286: 4281: 4276: 4271: 4266: 4261: 4256: 4251: 4246: 4241: 4236: 4231: 4226: 4221: 4216: 4211: 4206: 4201: 4196: 4191: 4186: 4181: 4176: 4171: 4169:Banert cascade 4166: 4161: 4156: 4151: 4146: 4141: 4136: 4131: 4126: 4121: 4116: 4111: 4106: 4101: 4095: 4093: 4089:Rearrangement 4085: 4084: 4082: 4081: 4079:Zinin reaction 4076: 4071: 4066: 4061: 4056: 4051: 4049:Wacker process 4046: 4041: 4036: 4031: 4026: 4021: 4016: 4011: 4006: 4001: 3996: 3991: 3986: 3981: 3976: 3971: 3966: 3961: 3956: 3951: 3946: 3941: 3936: 3931: 3926: 3921: 3916: 3911: 3906: 3901: 3896: 3891: 3886: 3881: 3876: 3871: 3866: 3861: 3856: 3851: 3846: 3841: 3836: 3831: 3826: 3824:Hydrogenolysis 3821: 3816: 3811: 3806: 3801: 3796: 3791: 3786: 3781: 3776: 3774:Étard reaction 3771: 3766: 3761: 3756: 3751: 3746: 3741: 3736: 3731: 3726: 3721: 3716: 3711: 3706: 3701: 3696: 3691: 3686: 3681: 3679:Bosch reaction 3676: 3671: 3666: 3661: 3656: 3651: 3646: 3641: 3636: 3631: 3626: 3621: 3616: 3611: 3606: 3601: 3596: 3590: 3588: 3584:Organic redox 3580: 3579: 3577: 3576: 3571: 3566: 3561: 3556: 3551: 3546: 3541: 3536: 3531: 3526: 3521: 3516: 3511: 3505: 3503: 3497: 3496: 3494: 3493: 3488: 3483: 3478: 3473: 3468: 3463: 3458: 3453: 3448: 3443: 3438: 3433: 3428: 3423: 3418: 3416:Esterification 3413: 3408: 3403: 3398: 3393: 3387: 3385: 3377: 3376: 3373: 3372: 3370: 3369: 3364: 3359: 3354: 3349: 3344: 3339: 3334: 3329: 3324: 3319: 3314: 3309: 3304: 3299: 3294: 3289: 3284: 3279: 3274: 3269: 3263: 3261: 3257: 3256: 3254: 3253: 3248: 3243: 3238: 3233: 3228: 3223: 3217: 3215: 3206: 3205: 3200: 3195: 3193:Wurtz reaction 3190: 3185: 3180: 3175: 3170: 3165: 3160: 3155: 3150: 3145: 3140: 3135: 3130: 3125: 3120: 3115: 3110: 3105: 3100: 3095: 3090: 3085: 3080: 3075: 3070: 3065: 3063:Prins reaction 3060: 3055: 3050: 3045: 3040: 3035: 3030: 3025: 3020: 3015: 3010: 3005: 3000: 2995: 2990: 2985: 2980: 2975: 2970: 2965: 2960: 2955: 2950: 2945: 2940: 2935: 2930: 2925: 2920: 2915: 2910: 2905: 2900: 2895: 2890: 2885: 2880: 2878:Hydrocyanation 2875: 2870: 2865: 2860: 2855: 2850: 2848:Henry reaction 2845: 2840: 2835: 2830: 2825: 2820: 2815: 2810: 2805: 2800: 2795: 2790: 2785: 2780: 2775: 2770: 2765: 2760: 2755: 2750: 2745: 2740: 2735: 2730: 2725: 2720: 2715: 2710: 2705: 2700: 2695: 2690: 2685: 2680: 2675: 2670: 2665: 2660: 2655: 2650: 2645: 2640: 2635: 2630: 2625: 2620: 2615: 2610: 2605: 2600: 2595: 2590: 2585: 2580: 2575: 2570: 2565: 2560: 2555: 2550: 2548:Aldol reaction 2545: 2540: 2535: 2529: 2527: 2522:Carbon-carbon 2519: 2518: 2507: 2506: 2501: 2499:Zaitsev's rule 2496: 2491: 2486: 2481: 2476: 2471: 2466: 2461: 2456: 2451: 2446: 2444:Steric effects 2441: 2436: 2431: 2426: 2421: 2416: 2411: 2406: 2401: 2396: 2391: 2386: 2381: 2376: 2371: 2366: 2361: 2356: 2351: 2346: 2341: 2336: 2331: 2326: 2321: 2316: 2311: 2306: 2301: 2296: 2291: 2286: 2281: 2276: 2271: 2266: 2261: 2256: 2251: 2246: 2241: 2236: 2231: 2226: 2221: 2216: 2211: 2206: 2201: 2196: 2191: 2186: 2181: 2176: 2171: 2166: 2161: 2156: 2151: 2146: 2141: 2136: 2131: 2125: 2122: 2121: 2119: 2118: 2113: 2108: 2103: 2098: 2096:Redox reaction 2093: 2088: 2083: 2081:Polymerization 2078: 2073: 2067: 2064: 2063: 2055: 2054: 2047: 2040: 2032: 2025: 2024: 2022: 2021: 2001:(3): 553–556. 1986: 1960:(8): 363–377. 1941: 1939: 1938: 1917: 1889: 1878:(4): 897–904. 1862: 1851:(2): 148–153. 1835: 1800: 1767: 1740: 1711: 1684: 1672: 1660: 1658: 1657: 1638: 1619: 1600: 1581: 1562: 1536: 1509: 1495: 1479: 1451: 1432: 1397: 1369: 1341: 1313: 1255: 1220: 1181: 1160: 1151: 1149: 1148: 1127: 1096: 1078: 1071: 1045: 1013: 1006: 981: 966: 936: 929: 897: 890: 858: 844: 820: 818: 815: 814: 813: 807: 801: 793: 790: 789: 788: 782: 753: 750: 719:isotope effect 624: 621: 554: 551: 550: 549: 504: 503: 472: 469: 431: 428: 418: 417: 414: 411: 408: 405: 402: 398: 397: 394: 391: 388: 385: 382: 378: 377: 374: 371: 368: 365: 362: 358: 357: 354: 351: 348: 345: 342: 341:Approximation 335:computations. 314: 311: 170: 167: 106:aromatic rings 80: 79: 76: 75: 68: 61: 60: 53: 49: 48: 44: 43: 38: 37:Reaction type 34: 33: 28: 24: 23: 15: 9: 6: 4: 3: 2: 5369: 5358: 5355: 5353: 5350: 5348: 5345: 5344: 5342: 5319: 5316: 5314: 5311: 5309: 5306: 5304: 5301: 5299: 5296: 5294: 5291: 5289: 5286: 5284: 5281: 5279: 5276: 5274: 5271: 5269: 5266: 5264: 5261: 5259: 5256: 5254: 5251: 5249: 5246: 5244: 5241: 5239: 5238:Herz reaction 5236: 5234: 5231: 5229: 5226: 5224: 5221: 5219: 5216: 5214: 5211: 5209: 5206: 5204: 5201: 5199: 5196: 5194: 5191: 5189: 5186: 5184: 5181: 5179: 5176: 5174: 5171: 5169: 5166: 5164: 5161: 5159: 5156: 5154: 5151: 5149: 5146: 5144: 5141: 5139: 5136: 5134: 5131: 5129: 5126: 5124: 5121: 5119: 5116: 5115: 5113: 5109: 5103: 5100: 5098: 5095: 5093: 5090: 5088: 5085: 5083: 5080: 5078: 5075: 5073: 5070: 5068: 5065: 5063: 5060: 5058: 5055: 5053: 5050: 5048: 5045: 5043: 5040: 5038: 5035: 5033: 5030: 5028: 5025: 5023: 5020: 5018: 5015: 5013: 5010: 5008: 5005: 5003: 5000: 4998: 4995: 4993: 4990: 4988: 4985: 4983: 4980: 4978: 4975: 4973: 4970: 4968: 4965: 4963: 4960: 4958: 4955: 4953: 4950: 4948: 4945: 4944: 4942: 4940: 4939:Cycloaddition 4936: 4930: 4927: 4925: 4922: 4920: 4917: 4915: 4912: 4910: 4907: 4905: 4902: 4900: 4897: 4895: 4892: 4890: 4887: 4885: 4882: 4880: 4877: 4875: 4872: 4870: 4867: 4865: 4862: 4860: 4857: 4855: 4852: 4850: 4847: 4845: 4842: 4840: 4837: 4835: 4832: 4830: 4827: 4825: 4822: 4820: 4817: 4815: 4812: 4810: 4807: 4805: 4802: 4800: 4797: 4795: 4792: 4790: 4787: 4785: 4784:Isay reaction 4782: 4780: 4777: 4775: 4772: 4770: 4767: 4765: 4762: 4760: 4757: 4755: 4752: 4750: 4747: 4745: 4742: 4740: 4737: 4735: 4732: 4730: 4727: 4725: 4722: 4720: 4717: 4715: 4712: 4710: 4707: 4705: 4702: 4700: 4697: 4695: 4692: 4690: 4687: 4685: 4682: 4680: 4679:Cycloaddition 4677: 4675: 4672: 4670: 4667: 4665: 4662: 4660: 4657: 4655: 4652: 4650: 4647: 4645: 4642: 4640: 4637: 4635: 4632: 4630: 4627: 4625: 4622: 4620: 4617: 4615: 4612: 4610: 4607: 4605: 4602: 4600: 4597: 4595: 4592: 4590: 4587: 4585: 4582: 4581: 4579: 4577: 4574:Ring forming 4571: 4565: 4562: 4560: 4557: 4555: 4552: 4550: 4547: 4545: 4542: 4540: 4537: 4535: 4532: 4530: 4527: 4525: 4522: 4520: 4517: 4515: 4512: 4510: 4507: 4505: 4502: 4500: 4497: 4495: 4492: 4490: 4487: 4485: 4482: 4480: 4477: 4475: 4474:Rupe reaction 4472: 4470: 4467: 4465: 4462: 4460: 4457: 4455: 4452: 4450: 4447: 4445: 4442: 4440: 4437: 4435: 4432: 4430: 4427: 4425: 4422: 4420: 4417: 4415: 4412: 4410: 4407: 4405: 4402: 4400: 4397: 4395: 4392: 4390: 4387: 4385: 4382: 4380: 4377: 4375: 4372: 4370: 4367: 4365: 4362: 4360: 4357: 4355: 4352: 4350: 4347: 4345: 4342: 4340: 4337: 4335: 4332: 4330: 4327: 4325: 4322: 4320: 4317: 4315: 4312: 4310: 4307: 4305: 4302: 4300: 4297: 4295: 4292: 4290: 4287: 4285: 4282: 4280: 4277: 4275: 4272: 4270: 4267: 4265: 4262: 4260: 4257: 4255: 4252: 4250: 4247: 4245: 4242: 4240: 4237: 4235: 4232: 4230: 4227: 4225: 4222: 4220: 4217: 4215: 4212: 4210: 4207: 4205: 4202: 4200: 4197: 4195: 4192: 4190: 4187: 4185: 4182: 4180: 4177: 4175: 4172: 4170: 4167: 4165: 4162: 4160: 4157: 4155: 4152: 4150: 4147: 4145: 4142: 4140: 4137: 4135: 4132: 4130: 4127: 4125: 4122: 4120: 4117: 4115: 4112: 4110: 4107: 4105: 4102: 4100: 4097: 4096: 4094: 4092: 4086: 4080: 4077: 4075: 4072: 4070: 4067: 4065: 4062: 4060: 4057: 4055: 4052: 4050: 4047: 4045: 4042: 4040: 4037: 4035: 4032: 4030: 4027: 4025: 4022: 4020: 4017: 4015: 4012: 4010: 4007: 4005: 4002: 4000: 3997: 3995: 3992: 3990: 3987: 3985: 3982: 3980: 3977: 3975: 3972: 3970: 3967: 3965: 3962: 3960: 3957: 3955: 3952: 3950: 3947: 3945: 3942: 3940: 3937: 3935: 3932: 3930: 3927: 3925: 3922: 3920: 3917: 3915: 3912: 3910: 3907: 3905: 3902: 3900: 3897: 3895: 3892: 3890: 3887: 3885: 3882: 3880: 3877: 3875: 3872: 3870: 3867: 3865: 3864:Ley oxidation 3862: 3860: 3857: 3855: 3852: 3850: 3847: 3845: 3842: 3840: 3837: 3835: 3832: 3830: 3829:Hydroxylation 3827: 3825: 3822: 3820: 3819:Hydrogenation 3817: 3815: 3812: 3810: 3807: 3805: 3802: 3800: 3797: 3795: 3792: 3790: 3787: 3785: 3782: 3780: 3777: 3775: 3772: 3770: 3767: 3765: 3762: 3760: 3757: 3755: 3754:DNA oxidation 3752: 3750: 3747: 3745: 3744:Deoxygenation 3742: 3740: 3737: 3735: 3732: 3730: 3727: 3725: 3722: 3720: 3717: 3715: 3712: 3710: 3707: 3705: 3702: 3700: 3697: 3695: 3692: 3690: 3687: 3685: 3682: 3680: 3677: 3675: 3672: 3670: 3667: 3665: 3662: 3660: 3657: 3655: 3652: 3650: 3647: 3645: 3642: 3640: 3637: 3635: 3634:Aromatization 3632: 3630: 3627: 3625: 3622: 3620: 3617: 3615: 3612: 3610: 3607: 3605: 3602: 3600: 3597: 3595: 3592: 3591: 3589: 3587: 3581: 3575: 3572: 3570: 3567: 3565: 3562: 3560: 3557: 3555: 3552: 3550: 3547: 3545: 3542: 3540: 3537: 3535: 3532: 3530: 3527: 3525: 3522: 3520: 3517: 3515: 3512: 3510: 3507: 3506: 3504: 3498: 3492: 3489: 3487: 3484: 3482: 3479: 3477: 3474: 3472: 3471:Reed reaction 3469: 3467: 3464: 3462: 3459: 3457: 3454: 3452: 3449: 3447: 3444: 3442: 3439: 3437: 3434: 3432: 3429: 3427: 3424: 3422: 3419: 3417: 3414: 3412: 3409: 3407: 3404: 3402: 3399: 3397: 3394: 3392: 3389: 3388: 3386: 3382:bond forming 3378: 3368: 3365: 3363: 3360: 3358: 3355: 3353: 3350: 3348: 3345: 3343: 3340: 3338: 3335: 3333: 3330: 3328: 3325: 3323: 3320: 3318: 3315: 3313: 3310: 3308: 3305: 3303: 3300: 3298: 3295: 3293: 3290: 3288: 3287:Cope reaction 3285: 3283: 3280: 3278: 3275: 3273: 3270: 3268: 3265: 3264: 3262: 3258: 3252: 3249: 3247: 3244: 3242: 3239: 3237: 3234: 3232: 3229: 3227: 3224: 3222: 3219: 3218: 3216: 3214: 3210: 3204: 3201: 3199: 3196: 3194: 3191: 3189: 3186: 3184: 3181: 3179: 3176: 3174: 3171: 3169: 3166: 3164: 3161: 3159: 3156: 3154: 3151: 3149: 3146: 3144: 3141: 3139: 3136: 3134: 3131: 3129: 3126: 3124: 3121: 3119: 3116: 3114: 3111: 3109: 3106: 3104: 3101: 3099: 3096: 3094: 3091: 3089: 3086: 3084: 3081: 3079: 3076: 3074: 3071: 3069: 3066: 3064: 3061: 3059: 3056: 3054: 3051: 3049: 3046: 3044: 3041: 3039: 3036: 3034: 3031: 3029: 3026: 3024: 3021: 3019: 3016: 3014: 3011: 3009: 3006: 3004: 3001: 2999: 2998:Nef synthesis 2996: 2994: 2991: 2989: 2986: 2984: 2981: 2979: 2976: 2974: 2973:Methylenation 2971: 2969: 2966: 2964: 2961: 2959: 2956: 2954: 2951: 2949: 2946: 2944: 2941: 2939: 2936: 2934: 2931: 2929: 2926: 2924: 2921: 2919: 2916: 2914: 2911: 2909: 2906: 2904: 2901: 2899: 2896: 2894: 2891: 2889: 2886: 2884: 2881: 2879: 2876: 2874: 2871: 2869: 2866: 2864: 2861: 2859: 2856: 2854: 2851: 2849: 2846: 2844: 2843:Heck reaction 2841: 2839: 2836: 2834: 2831: 2829: 2826: 2824: 2821: 2819: 2816: 2814: 2811: 2809: 2806: 2804: 2801: 2799: 2796: 2794: 2791: 2789: 2786: 2784: 2781: 2779: 2776: 2774: 2771: 2769: 2766: 2764: 2761: 2759: 2756: 2754: 2751: 2749: 2746: 2744: 2741: 2739: 2736: 2734: 2731: 2729: 2726: 2724: 2721: 2719: 2716: 2714: 2711: 2709: 2706: 2704: 2701: 2699: 2696: 2694: 2691: 2689: 2686: 2684: 2681: 2679: 2676: 2674: 2671: 2669: 2666: 2664: 2661: 2659: 2656: 2654: 2651: 2649: 2646: 2644: 2641: 2639: 2636: 2634: 2631: 2629: 2626: 2624: 2621: 2619: 2616: 2614: 2611: 2609: 2606: 2604: 2601: 2599: 2596: 2594: 2591: 2589: 2586: 2584: 2581: 2579: 2576: 2574: 2571: 2569: 2566: 2564: 2561: 2559: 2556: 2554: 2551: 2549: 2546: 2544: 2541: 2539: 2536: 2534: 2531: 2530: 2528: 2524:bond forming 2520: 2516: 2511: 2505: 2502: 2500: 2497: 2495: 2492: 2490: 2489:Y-aromaticity 2487: 2485: 2482: 2480: 2477: 2475: 2474:Walsh diagram 2472: 2470: 2467: 2465: 2462: 2460: 2459:Taft equation 2457: 2455: 2452: 2450: 2447: 2445: 2442: 2440: 2437: 2435: 2432: 2430: 2429:ÎŁ-aromaticity 2427: 2425: 2422: 2420: 2417: 2415: 2412: 2410: 2407: 2405: 2402: 2400: 2397: 2395: 2392: 2390: 2387: 2385: 2382: 2380: 2377: 2375: 2372: 2370: 2367: 2365: 2362: 2360: 2357: 2355: 2354:Marcus theory 2352: 2350: 2347: 2345: 2342: 2340: 2337: 2335: 2332: 2330: 2329:HĂŒckel's rule 2327: 2325: 2322: 2320: 2317: 2315: 2312: 2310: 2307: 2305: 2302: 2300: 2297: 2295: 2292: 2290: 2287: 2285: 2284:Evelyn effect 2282: 2280: 2277: 2275: 2272: 2270: 2267: 2265: 2264:Electron-rich 2262: 2260: 2257: 2255: 2252: 2250: 2247: 2245: 2242: 2240: 2237: 2235: 2232: 2230: 2227: 2225: 2222: 2220: 2217: 2215: 2212: 2210: 2207: 2205: 2202: 2200: 2197: 2195: 2192: 2190: 2187: 2185: 2182: 2180: 2179:Bema Hapothle 2177: 2175: 2172: 2170: 2167: 2165: 2162: 2160: 2157: 2155: 2152: 2150: 2147: 2145: 2142: 2140: 2137: 2135: 2132: 2130: 2127: 2126: 2123: 2117: 2114: 2112: 2109: 2107: 2104: 2102: 2099: 2097: 2094: 2092: 2089: 2087: 2084: 2082: 2079: 2077: 2074: 2072: 2069: 2068: 2065: 2061: 2053: 2048: 2046: 2041: 2039: 2034: 2033: 2030: 2018: 2014: 2009: 2004: 2000: 1996: 1992: 1987: 1983: 1979: 1975: 1971: 1967: 1963: 1959: 1955: 1950: 1949: 1945: 1935: 1931: 1927: 1923: 1918: 1914: 1910: 1906: 1902: 1897: 1896: 1893: 1885: 1881: 1877: 1873: 1866: 1858: 1854: 1850: 1846: 1839: 1831: 1827: 1823: 1819: 1815: 1811: 1804: 1795: 1788: 1784: 1783: 1778: 1771: 1763: 1759: 1755: 1751: 1744: 1736: 1732: 1728: 1724: 1723: 1715: 1707: 1703: 1699: 1695: 1688: 1681: 1676: 1669: 1664: 1654: 1650: 1646: 1645: 1644:J. Chem. Soc. 1639: 1635: 1631: 1627: 1626: 1625:J. Chem. Soc. 1620: 1616: 1612: 1608: 1607: 1606:J. Chem. Soc. 1601: 1597: 1593: 1589: 1588: 1587:J. Chem. Soc. 1582: 1578: 1574: 1570: 1569: 1568:J. Chem. Soc. 1563: 1559: 1555: 1551: 1550: 1549:J. Chem. Soc. 1544: 1543: 1540: 1532: 1528: 1524: 1520: 1513: 1506: 1505: 1499: 1493: 1489: 1483: 1475:, vol. 6 1474: 1468: 1467: 1462: 1455: 1449: 1445: 1441: 1436: 1428: 1424: 1420: 1416: 1412: 1408: 1401: 1392: 1386: 1385: 1380: 1373: 1364: 1358: 1357: 1352: 1345: 1336: 1330: 1329: 1324: 1317: 1309: 1305: 1300: 1295: 1291: 1287: 1283: 1279: 1275: 1271: 1267: 1259: 1251: 1247: 1243: 1239: 1235: 1231: 1224: 1216: 1212: 1208: 1204: 1200: 1196: 1192: 1185: 1177: 1173: 1172: 1164: 1155: 1145: 1141: 1137: 1133: 1128: 1124: 1120: 1116: 1112: 1107: 1106: 1103: 1101: 1092: 1085: 1083: 1074: 1072:0-12-781650-X 1068: 1064: 1059: 1058: 1049: 1041: 1037: 1033: 1029: 1022: 1020: 1018: 1009: 1003: 999: 992: 990: 988: 986: 978: 973: 971: 962: 958: 954: 950: 943: 941: 932: 926: 922: 918: 914: 910: 909: 901: 893: 887: 883: 879: 875: 871: 870: 862: 855: 851: 847: 845:9780471854722 841: 837: 836: 831: 825: 821: 811: 808: 805: 802: 799: 796: 795: 785: 779: 775: 771: 767: 763: 762: 756: 755: 749: 747: 743: 738: 736: 732: 728: 724: 720: 715: 711: 706: 704: 700: 696: 692: 687: 683: 679: 670: 666: 664: 660: 654: 651: 649: 645: 641: 637: 633: 629: 620: 612: 604: 600: 598: 597:dimethylamine 594: 589: 587: 583: 580: 576: 572: 569:, especially 568: 564: 563:hydrogenation 560: 545: 543: 538: 533: 529: 528: 527: 525: 521: 517: 513: 509: 498: 494: 493: 492: 490: 486: 482: 478: 468: 466: 461: 459: 455: 453: 448: 443: 441: 437: 430:Modifications 427: 425: 415: 412: 409: 406: 403: 400: 399: 395: 392: 389: 386: 383: 380: 379: 375: 372: 369: 366: 363: 360: 359: 355: 352: 349: 346: 343: 340: 339: 336: 334: 330: 322: 318: 310: 308: 304: 300: 296: 292: 284: 280: 274: 270: 268: 264: 260: 256: 252: 248: 244: 240: 232: 227: 223: 221: 217: 209: 205: 200: 196: 194: 193: 189: 184: 183:radical anion 180: 177:salt e. The 176: 162: 158: 156: 147: 143: 141: 137: 136:hydrogenation 134: 130: 126: 122: 118: 114: 111: 107: 103: 99: 95: 91: 87: 77: 73: 69: 66: 63: 62: 58: 54: 51: 50: 45: 42: 39: 36: 35: 32: 29: 26: 25: 20: 4279:Ene reaction 3668: 3639:Autoxidation 3500:Degradation 3391:Azo coupling 3168:Ugi reaction 2768:Ene reaction 2568:Alkynylation 2419:Polyfluorene 2414:Polar effect 2279:Electrophile 2194:Bredt's rule 2164:Baird's rule 2134:Alpha effect 1998: 1994: 1957: 1953: 1944: 1925: 1921: 1904: 1900: 1892: 1875: 1871: 1865: 1848: 1844: 1838: 1813: 1810:J. Org. Chem 1809: 1803: 1793: 1786: 1780: 1770: 1753: 1750:J. Org. Chem 1749: 1743: 1726: 1720: 1714: 1697: 1693: 1687: 1675: 1663: 1642: 1623: 1604: 1585: 1566: 1547: 1539: 1522: 1518: 1512: 1502: 1498: 1482: 1472: 1464: 1454: 1435: 1410: 1406: 1400: 1390: 1382: 1372: 1362: 1354: 1344: 1334: 1326: 1316: 1273: 1269: 1258: 1233: 1229: 1223: 1198: 1194: 1190: 1184: 1175: 1169: 1163: 1154: 1135: 1131: 1114: 1110: 1090: 1056: 1048: 1031: 1027: 997: 952: 948: 912: 906: 900: 873: 867: 861: 834: 830:March, Jerry 824: 765: 759: 745: 741: 739: 734: 730: 726: 723:methoxylated 713: 709: 707: 702: 698: 694: 690: 685: 682:benzene ring 677: 675: 662: 661:rather than 658: 655: 652: 628:Arthur Birch 626: 617: 590: 571:naphthalenes 558: 556: 541: 510:, such as a 505: 485:electrophile 476: 474: 462: 454:-propylamine 451: 444: 433: 421: 326: 316: 295:nitro groups 288: 278: 267:benzoic acid 262: 254: 250: 246: 242: 239:Arthur Birch 236: 213: 191: 187: 172: 152: 131:). Unlike 121:alkali metal 98:Arthur Birch 85: 83: 72:RXNO:0000042 67:ontology ID 47:Identifiers 31:Arthur Birch 27:Named after 2778:Ethenolysis 2424:Ring strain 2394:Nucleophile 2219:Clar's rule 2159:Aromaticity 1872:Tetrahedron 1845:Tetrahedron 1756:: 126–135. 1722:Quart. Rev. 1504:Merck Index 1028:Tetrahedron 915:: 489–521. 869:Org. React. 761:Org. React. 401:3rd approx 381:2nd approx 216:third order 155:naphthalene 140:cyclohexane 5341:Categories 5062:Ozonolysis 4589:Annulation 3939:Ozonolysis 2058:Topics in 1725:(review). 1680:Birch 1946 1668:Birch 1945 1525:(3): 596. 1507:, 13th Ed. 1178:: 330–332. 977:Birch 1944 911:(review). 891:0471264180 872:(review). 817:References 783:0471264180 764:(review). 593:ethylamine 489:haloalkane 487:such as a 440:pyrophoric 119:) with an 4576:reactions 4091:reactions 3586:reactions 3502:reactions 3384:reactions 2526:reactions 1729:(1): 17. 1448:Macedonia 876:: 1–334. 854:642506595 768:: 1–258. 516:carbanion 449:or mixed 436:cryogenic 175:electride 133:catalytic 2469:Vinylogy 2139:Annulene 2086:Reagents 2017:41494178 1982:24827957 1954:Steroids 1830:11300915 1647:: 2531. 1628:: 1642. 1427:17559217 1308:30792297 1250:11031034 1215:12098328 832:(1985), 792:See also 748:attack. 424:tautomer 299:alcohols 2129:A value 1974:1519267 1609:: 102. 1590:: 593. 1571:: 809. 1552:: 430. 1299:7001862 1278:Bibcode 1270:Science 1264:2019). 644:ethanol 634:at the 623:History 579:calcium 575:lithium 561:is the 535:Adding 291:ketones 269:(2). 259:anisole 231:anisole 204:benzene 129:alcohol 117:ammonia 113:solvent 2015:  1980:  1972:  1828:  1444:Skopje 1425:  1306:  1296:  1248:  1213:  1069:  1004:  927:  888:  852:  842:  780:  640:sodium 586:amines 573:using 520:olefin 416:0.562 413:0.802 410:0.368 404:0.316 396:0.564 393:0.802 390:0.365 384:0.317 376:0.578 373:0.788 370:0.333 364:0.333 307:ethers 125:proton 108:in an 90:arenes 2013:S2CID 1978:S2CID 1063:154–5 746:ortho 742:ortho 735:ortho 727:ortho 710:ortho 703:ortho 695:ortho 686:ortho 582:metal 522:; an 481:anion 407:0.00 387:0.00 367:0.00 305:, or 255:ortho 247:ortho 188:ortho 110:amine 1970:PMID 1826:PMID 1789:: 59 1423:PMID 1304:PMID 1246:PMID 1211:PMID 1191:tert 1067:ISBN 1002:ISBN 925:ISBN 886:ISBN 850:OCLC 840:ISBN 778:ISBN 731:meta 714:meta 712:and 705:. 699:meta 697:and 691:meta 678:meta 663:ipso 659:para 642:and 557:The 542:tert 479:the 456:and 263:para 251:para 243:meta 192:para 142:. 84:The 2003:doi 1962:doi 1930:doi 1926:102 1909:doi 1905:102 1880:doi 1853:doi 1818:doi 1758:doi 1731:doi 1702:doi 1649:doi 1630:doi 1611:doi 1592:doi 1573:doi 1554:doi 1527:doi 1488:doi 1415:doi 1294:PMC 1286:doi 1274:363 1238:doi 1203:doi 1140:doi 1136:115 1119:doi 1115:112 1036:doi 957:doi 917:doi 878:doi 770:doi 577:or 565:of 475:In 447:THF 333:RHF 293:or 249:or 190:or 104:of 92:to 65:RSC 5343:: 2011:. 1999:68 1997:. 1993:. 1976:. 1968:. 1958:57 1956:. 1924:. 1903:. 1876:25 1874:. 1847:. 1824:. 1814:66 1812:. 1791:; 1787:61 1785:. 1779:. 1754:34 1752:. 1727:12 1698:75 1696:. 1523:59 1521:. 1470:; 1463:. 1446:, 1421:. 1409:. 1388:; 1381:. 1360:; 1353:. 1332:; 1325:. 1302:. 1292:. 1284:. 1272:. 1268:. 1244:. 1234:65 1232:. 1209:. 1199:67 1197:. 1176:67 1174:. 1134:. 1113:. 1099:^ 1081:^ 1065:. 1032:16 1030:. 1016:^ 984:^ 969:^ 953:81 951:. 939:^ 923:. 884:. 874:42 848:, 776:. 766:23 646:; 460:. 309:. 301:, 2051:e 2044:t 2037:v 2019:. 2005:: 1984:. 1964:: 1936:. 1932:: 1915:. 1911:: 1886:. 1882:: 1859:. 1855:: 1849:6 1832:. 1820:: 1798:. 1764:. 1760:: 1737:. 1733:: 1708:. 1704:: 1682:. 1670:. 1655:. 1651:: 1636:. 1632:: 1617:. 1613:: 1598:. 1594:: 1579:. 1575:: 1560:. 1556:: 1533:. 1529:: 1490:: 1477:. 1429:. 1417:: 1411:9 1395:. 1367:. 1339:. 1310:. 1288:: 1280:: 1252:. 1240:: 1217:. 1205:: 1146:. 1142:: 1125:. 1121:: 1075:. 1042:. 1038:: 1010:. 979:. 963:. 959:: 933:. 919:: 913:8 894:. 880:: 786:. 772:: 595:- 452:n 233:. 210:.

Index

Arthur Birch
Organic redox reaction
birch-reduction
RSC
RXNO:0000042
arenes
1,4-cyclohexadienes
Arthur Birch
organic reduction
aromatic rings
amine
solvent
ammonia
alkali metal
proton
alcohol
catalytic
hydrogenation
cyclohexane
The Birch reduction
naphthalene
naphthalene Birch Reduction
electride
solvated electrons
radical anion
ortho or para
Electron attacks a benzene ring, which then abstracts a proton from ROH; process then repeats in the para position.
benzene
in animated form
third order

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