Zinc oxide as a new, highly efficient, green, and reusable catalyst for microwave-assisted Michael addition of sulfonamides to α,β-unsaturated esters in ionic liquids
作者:Abdolkarim Zare、Alireza Hasaninejad、Ahmad Reza Moosavi Zare、Abolfath Parhami、Hashem Sharghi、Ali Khalafi-Nezhad
DOI:10.1139/v07-050
日期:2007.6.1
A simple, clean, and efficient procedure for the green synthesis of some N-alkyl derivatives of sulfonamides is described. Microwave-assisted Michael addition of sulfonamides to α,β-unsaturated esters, in the presence of catalytic amount of zinc oxide (ZnO) in 1-butyl-3-methylimidazolium bromide ([bmim]Br), affords the title compounds in high yields and short reaction times.Key words: zinc oxide, green
描述了一种简单、清洁、高效的磺胺类 N-烷基衍生物的绿色合成方法。在 1-丁基-3-甲基咪唑鎓溴化物 ([bmim]Br) 中存在催化量的氧化锌 (ZnO) 的情况下,微波辅助磺酰胺与 α,β-不饱和酯的迈克尔加成反应,以高产率得到标题化合物关键词:氧化锌,绿色化学,微波,迈克尔加成,磺胺,离子液体。