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1-Methylimidazole

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BASF has used 1-methylimidazole as a means to remove acid during their industrial-scale production of diethoxyphenylphosphine. In this biphasic acid scavenging using ionic liquids (BASIL) process, 1-methylimidazole reacts with HCl to produce 1-methylimidazolium hydrochloride, which spontaneously
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1-Methylimidazole is also the precursor for the synthesis of the methylimidazole monomer of pyrrole-imidazole polyamides. These polymers can selectively bind specific sequences of double-stranded DNA by intercalating in a sequence dependent manner.
743:. It is a colourless liquid that is used as a specialty solvent, a base, and as a precursor to some ionic liquids. It is a fundamental nitrogen heterocycle and as such mimics for various nucleoside bases as well as histidine and histamine. 759:
cannot tautomerize. It is slightly more basic than imidazole, as indicated by the pKa's of the conjugate acids of 7.0 and 7.4. Methylation also provides a significantly lower melting point, which makes 1-methylimidazole a useful solvent.
537: 504: 852:-like nitrogen and subsequent deprotonation. Similarly, 1-methylimidazole may be synthesized by first deprotonating imidazole to form a sodium salt followed by methylation. 615: 607: 1351:
Reedijk,R. (1969). "Pyrazoles and imidazoles as ligands. II. Coordination compounds of N-methyl imidazole with metal perchlorates and tetrafluoroborates".
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Dupont, J.; Consorti, C.; Suarez, P.; de Souza, R. (2002). "Preparation of 1-Butyl-3-methyl imidazolium-based Room Temperature Ionic Liquids".
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In the research laboratory, 1-methylimidazole and related derivatives have been used as mimic aspects of diverse imidazole-based biomolecules.
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Gupta, R. R., Kumar, M., Gupta, V., Heterocyclic Chemistry II: Five Membered Heterocycles; 1999 Springer,
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Gilchrist, T. L., Heterocyclic Chemistry, 2nd ed.; 1992 Longman Scientific & Technical,
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Ebel, K.; Koehler, H.; Gamer, A. O. & Jäckh, R. (2002). "Imidazole and Derivatives".
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Proceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences
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Meindersma, G. Wytze; Maase, Matthias; De Haan, André B. (2007). "Ionic Liquids".
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1-Methylimidazole is prepared mainly by two routes industrially. The main one is
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1-Methylimidazole alkylates to form dialkyl imidazolium salts. Depending on the
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Grimmett, M. R., Imidazole and Benzimidazole Synthesis; 1997 Academic Press,
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separates as a separate liquid phase under the reaction conditions.
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Except where otherwise noted, data are given for materials in their
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1-methylimidazole (NMIz) as a ligand forms octahedral ions M(NMIz)
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Albert, A., Heterocyclic Chemistry, 2nd ed.; 1968 Athlone Press,
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The compound can be synthesized on a laboratory scale by
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with M = Fe, Co, Ni, and a square-planar ion Cu(NMIz)
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The second method involves the 1336: 1287:Welton, Tom (11 November 2015). 928: 676: 527: 522: 22: 1344: 1280: 1107:Bronislaw Radziszewski (1882). 891: 672:(at 25 °C , 100 kPa). 1251: 1181: 1165: 1149: 1133: 1100: 1049: 912:and the counteranion, various 1: 1365:10.1016/S0020-1693(00)92544-1 1042: 763: 7: 1030: 746: 31: 10: 1406: 666: 503: 498: 464:82.10 g/mol 429: 404: 369: 96: 79: 63: 58: 30: 21: 1235:10.1002/14356007.l14_l01 1127:10.1002/cber.18820150207 1084:10.1002/14356007.a13_661 574:Precautionary statements 1353:Inorganica Chimica Acta 1274:10.15227/orgsyn.079.023 1229:. Weinheim: Wiley-VCH. 1078:. Weinheim: Wiley-VCH. 1313:10.1098/rspa.2015.0502 904:Ionic liquid precursor 49: 40: 782:Radziszewski reaction 48: 39: 848:of imidazole at the 65:Preferred IUPAC name 1305:2015RSPSA.47150502W 792:, and a mixture of 157:Beilstein Reference 18: 1299:(2183): 20150502. 699:Infobox references 50: 41: 17:1-Methylimidazole 16: 1261:Organic Syntheses 1244:978-3-527-30673-2 1209:10.1021/ja960720z 1037:4-Methylimidazole 711:1-Methylimidazole 707:Chemical compound 705: 704: 655:Safety data sheet 552:Hazard statements 343:CompTox Dashboard 145:Interactive image 138:Interactive image 87:-Methylimidazole 82:1-Methylimidazole 54: 53: 1397: 1369: 1368: 1348: 1342: 1341: 1340: 1334: 1324: 1284: 1278: 1276: 1255: 1249: 1248: 1222: 1213: 1212: 1194: 1185: 1179: 1169: 1163: 1153: 1147: 1137: 1131: 1130: 1121:(2): 1493–1496. 1104: 1098: 1097: 1069: 1063: 1053: 997:Donor properties 932: 910:alkylating agent 718:-methylimidazole 689: 683: 680: 679: 649: 645: 641: 637: 633: 629: 625: 621: 617: 613: 609: 605: 601: 597: 593: 589: 585: 581: 567: 563: 559: 531: 526: 437:Chemical formula 362: 351: 349: 333: 313: 302: 286:Gmelin Reference 269: 261: 250: 239: 219: 199: 179: 147: 140: 116: 32: 26: 19: 15: 1405: 1404: 1400: 1399: 1398: 1396: 1395: 1394: 1375: 1374: 1373: 1372: 1349: 1345: 1335: 1285: 1281: 1256: 1252: 1245: 1223: 1216: 1192: 1186: 1182: 1170: 1166: 1154: 1150: 1138: 1134: 1105: 1101: 1094: 1070: 1066: 1054: 1050: 1045: 1033: 1026: 1022: 1013: 1008: 1004: 999: 992: 988: 984: 980: 976: 972: 968: 964: 960: 956: 952: 948: 944: 923: 906: 894: 886: 882: 878: 874: 867: 863: 859: 839: 835: 831: 827: 823: 819: 815: 811: 807: 772:methylation of 766: 749: 742: 738: 734: 730: 708: 701: 696: 695: 694:  ?) 685: 681: 677: 673: 576: 554: 540: 519: 453: 449: 445: 439: 425: 422: 417: 412: 411: 400: 397: 396: 393: 387: 386: 383: 377: 376: 365: 352: 345: 336: 316: 303: 288: 279: 242: 222: 202: 182: 159: 150: 130: 119: 106: 92: 88: 83: 75: 74: 12: 11: 5: 1403: 1393: 1392: 1387: 1371: 1370: 1343: 1279: 1250: 1243: 1214: 1203:(26): 6141–6. 1180: 1164: 1148: 1132: 1099: 1093:978-3527306732 1092: 1064: 1047: 1046: 1044: 1041: 1040: 1039: 1032: 1029: 1024: 1020: 1011: 1006: 1002: 998: 995: 994: 993: 990: 986: 982: 978: 974: 970: 966: 962: 958: 954: 950: 946: 942: 934: 933: 921: 905: 902: 893: 890: 889: 888: 884: 880: 876: 872: 869: 865: 861: 857: 842: 841: 837: 833: 829: 825: 821: 817: 813: 809: 805: 770:acid-catalysed 765: 762: 748: 745: 740: 736: 732: 728: 706: 703: 702: 697: 675: 674: 670:standard state 667: 664: 663: 658: 651: 650: 616:P305+P351+P338 608:P303+P361+P353 600:P301+P330+P331 577: 572: 569: 568: 555: 550: 547: 546: 541: 536: 533: 532: 520: 515: 512: 511: 501: 500: 496: 495: 492: 486: 485: 482: 476: 475: 472: 466: 465: 462: 456: 455: 451: 447: 443: 440: 435: 432: 431: 427: 426: 424: 423: 420: 418: 415: 407: 406: 405: 402: 401: 399: 398: 394: 391: 390: 388: 384: 381: 380: 372: 371: 370: 367: 366: 364: 363: 355: 353: 341: 338: 337: 335: 334: 326: 324: 318: 317: 315: 314: 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916:result, e.g. 915: 914:ionic liquids 911: 901: 897: 870: 855: 854: 853: 851: 847: 803: 802: 801: 799: 795: 791: 787: 783: 779: 775: 771: 761: 758: 754: 744: 726: 723: 719: 717: 712: 700: 693: 688: 671: 665: 662: 659: 656: 653: 652: 578: 575: 571: 570: 556: 553: 549: 548: 545: 542: 539: 535: 534: 530: 525: 521: 518: 514: 513: 509: 507: 502: 497: 493: 491: 490:Boiling point 488: 487: 483: 481: 480:Melting point 478: 477: 473: 471: 468: 467: 463: 461: 458: 457: 441: 438: 434: 433: 428: 419: 414: 413: 410: 403: 389: 379: 378: 375: 368: 361: 360:DTXSID6052291 357: 356: 354: 344: 340: 339: 332: 328: 327: 325: 323: 320: 319: 312: 308: 307: 305: 299: 295: 294: 290: 287: 283: 282: 275: 274: 272: 270: 265: 264: 260: 256: 253: 251: 249:ECHA InfoCard 246: 245: 238: 234: 233: 231: 229: 226: 225: 218: 214: 213: 211: 209: 206: 205: 198: 194: 193: 191: 189: 186: 185: 178: 174: 173: 171: 169: 166: 165: 161: 158: 154: 153: 146: 142: 139: 135: 134: 132: 128: 123: 122: 115: 111: 110: 108: 105: 101: 100: 95: 91: 86: 78: 72: 66: 62: 57: 47: 43: 38: 34: 33: 29: 25: 20: 1356: 1352: 1346: 1296: 1292: 1282: 1265: 1259: 1253: 1226: 1200: 1196: 1183: 1167: 1151: 1135: 1118: 1112: 1102: 1073: 1067: 1051: 1023:= 1.16 and C 1000: 935: 907: 898: 895: 892:Applications 871:I + NaOH → H 864:N(NH)CH + CH 843: 790:formaldehyde 767: 752: 750: 725:heterocyclic 715: 714: 710: 709: 543: 505: 177:CHEBI:113454 97:Identifiers 89: 84: 80:Other names 70: 1359:: 517–522. 846:methylation 836:)CH + 3 H 798:methylamine 661:Oxford MSDS 538:Signal word 430:Properties 255:100.009.532 1385:Imidazoles 1379:Categories 1043:References 1019:yielding E 517:Pictograms 474:1.03 g/cm 460:Molar mass 416:n1ccn(c1)C 331:P4617QS63Y 208:ChemSpider 125:3D model ( 104:CAS Number 73:-imidazole 69:1-Methyl-1 1017:ECW model 774:imidazole 764:Synthesis 757:imidazole 751:With the 612:P304+P340 604:P302+P352 596:P301+P312 508:labelling 276:210-484-7 268:EC Number 197:ChEMBL543 1390:Solvents 1331:26730217 1031:See also 1027:= 4.92. 920:("BMIMPF 850:pyridine 812:O + CH 778:methanol 747:Basicity 722:aromatic 499:Hazards 421:Cn1ccnc1 228:DrugBank 114:616-47-7 1322:4685879 1301:Bibcode 1268:: 236. 887:O + NaI 883:)CH + H 794:ammonia 786:glyoxal 692:what is 690: ( 470:Density 454: 298:PubChem 237:DB02671 162:105197 1329:  1319:  1241:  1175:  1159:  1143:  1090:  1059:  720:is an 687:verify 684:  657:(SDS) 544:Danger 409:SMILES 188:ChEMBL 59:Names 1193:(PDF) 965:+ 2 C 941:2 MeC 879:N(NCH 868:I → I 832:N(NCH 824:→ H 820:+ NH 808:+ CH 804:(CHO) 784:from 374:InChI 291:2403 168:ChEBI 127:JSmol 1327:PMID 1239:ISBN 1173:ISBN 1157:ISBN 1141:ISBN 1088:ISBN 1057:ISBN 981:P(OC 924:"): 796:and 648:P501 644:P405 640:P363 636:P330 632:P322 628:P321 624:P312 620:P310 592:P280 588:P270 584:P264 580:P260 566:H314 562:H312 558:H302 322:UNII 311:1390 217:1348 1361:doi 1317:PMC 1309:doi 1297:471 1270:doi 1231:doi 1205:doi 1201:118 1123:doi 1080:doi 961:PCl 953:+ C 776:by 713:or 506:GHS 348:EPA 301:CID 90:NMI 1381:: 1355:. 1325:. 1315:. 1307:. 1295:. 1291:. 1266:79 1264:. 1237:. 1217:^ 1199:. 1195:. 1119:15 1086:. 816:NH 800:. 788:, 646:, 642:, 638:, 634:, 630:, 626:, 622:, 618:, 614:, 610:, 606:, 602:, 598:, 594:, 590:, 586:, 582:, 564:, 560:, 510:: 1367:. 1363:: 1357:3 1333:. 1311:: 1303:: 1277:. 1272:: 1247:. 1233:: 1211:. 1207:: 1129:. 1125:: 1096:. 1082:: 1025:B 1021:B 1012:2 1007:4 1003:6 991:2 989:) 987:5 985:H 983:2 979:5 977:H 975:6 971:5 969:H 967:2 963:2 959:5 957:H 955:6 951:3 949:H 947:2 945:N 943:3 922:6 885:2 881:3 877:2 875:C 873:2 866:3 862:2 860:C 858:2 856:H 840:O 838:2 834:3 830:2 828:C 826:2 822:3 818:2 814:3 810:2 806:2 753:N 741:2 739:N 737:3 735:H 733:3 731:C 729:3 716:N 682:Y 452:2 450:N 448:6 446:H 444:4 442:C 350:) 346:( 129:) 85:N 71:H

Index




Preferred IUPAC name
CAS Number
616-47-7
JSmol
Interactive image
Interactive image
Beilstein Reference
ChEBI
CHEBI:113454
ChEMBL
ChEMBL543
ChemSpider
1348
DrugBank
DB02671
ECHA InfoCard
100.009.532
Edit this at Wikidata
EC Number
Gmelin Reference
PubChem
1390
UNII
P4617QS63Y
CompTox Dashboard
DTXSID6052291
InChI

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