Dicationic ionic liquids as recyclable catalysts for one-pot solvent-free synthesis of α-aminophosphonates
作者:Dong Fang、Jinming Yang、Chunjie Ni
DOI:10.1002/hc.20647
日期:——
task-specific ionic liquids N,N,N′,N′-tetramethyl-N,N′-dipropanesulfonic acid ethylene-diammonium hydrogen sulfate, N,N,N′,N′-tetramethyl-N,N′-dipropanesulfonic acid-1,3-propanediammonium hydrogen sulfate, N,N,N′,N′- tetramethyl-N,N′- dipropanesulfonic acid-1,6-hexanediammonium hydrogen sulfate were prepared. These ionic liquids could be used as efficient and recyclable catalysts for the synthesis of α-aminophosphonates
一些特定任务的离子液体 N,N,N',N'-四甲基-N,N'-二丙磺酸 乙二硫酸氢二铵,N,N,N',N'-四甲基-N,N'-二丙磺酸制备了-1,3-丙烷二硫酸氢铵、N,N,N',N'-四甲基-N,N'-二丙磺酸-1,6-己二硫酸氢铵。这些离子液体可用作高效且可回收的催化剂,用于在室温下通过一锅三组分反应在无有机溶剂条件下合成 α-氨基膦酸酯,产率可达 83-96%。后处理简单,催化剂可重复使用至少六次,催化活性不会明显降低。新颖的清洁程序具有反应时间短、产率高、操作简单和环境友好等优点。© 2010 Wiley Periodicals, Inc. 杂原子化学 22:1–5, 2011; 在 wileyonlinelibrary.com 上在线查看这篇文章。DOI 10.1002/hc.20647