Convenient Microwave-Assisted Synthesis of 5-Functionalized 1,2,4-Triazolium Ylides Starting from<i>N′</i>,<i>N′</i>-Disubstituted Carbohydrazonamides
作者:Mehdi Khankischpur、Thomas Kurz
DOI:10.1002/ejoc.200800788
日期:2008.12
5-Functionalized 1,2,4-triazolium ylides have been prepared in good yields and in very short reaction times by reacting N′,N′-disubstituted carbohydrazonamides with 1,1′-carbonylbis(1,2,4-triazole), 1,1′-thiocarbonyldiimidazole or diphenyl N-cyanimidocarbonate under microwave irradiation. (© Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2008)
通过将 N',N'-二取代碳腙酰胺与 1,1'-羰基双 (1,2,4-三唑) 反应,5-官能化的 1,2,4-三唑鎓叶立德已经以良好的产率和非常短的反应时间制备,微波辐射下的 1,1'-硫代羰基二咪唑或二苯基 N-氰亚氨基碳酸酯。(© Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2008)