A fast and highly efficient protocol for Michael addition of N-heterocycles to α,β-unsaturated compound using basic ionic liquid [bmIm]OH as catalyst and green solvent
作者:Jian-Ming Xu、Chao Qian、Bo-Kai Liu、Qi Wu、Xian-Fu Lin
DOI:10.1016/j.tet.2006.11.013
日期:2007.1
A fast and green protocol for the Michael addition of N-heterocycles to α,β-unsaturated compounds at room temperature was developed using a basic ionic liquid, 1-methyl-3-butylimidazolium hydroxide, [bmIm]OH, as a catalyst and a reaction medium. The reactions were performed at room temperature with good yields in short reaction times (0.5–3 h). This strategy is quite general and it works with a broad
使用碱性离子液体1-甲基-3-丁基咪唑鎓氢氧化物[bmIm] OH作为催化剂,并使用碱性离子液体,开发了一种快速,绿色的方法,用于在室温下将N-杂环迈克尔加成至α,β-不饱和化合物。反应介质。反应在室温下以短的反应时间(0.5–3小时)以良好的收率进行。该策略是相当普遍的,并且适用于广泛的N-杂环,包括五元N-杂环,嘧啶和嘌呤。回收的离子液体可重复使用几个循环,具有一致的活性。