Aza-Michael addition of aliphatic or aromatic amines to α,β-unsaturated compounds catalyzed by a DBU-derived ionic liquid under solvent-free conditions
作者:An-Guo Ying、Luo Liu、Guo-Feng Wu、Gang Chen、Xin-Zhi Chen、Wei-Dong Ye
DOI:10.1016/j.tetlet.2009.01.123
日期:2009.4
A task-specific ionic liquid, 1,8-diazabicyclo[5.4.0]-undec-7-en-8-ium acetate has been successfully used as a catalyst for aza-conjugate addition of aliphatic or aromatic amines to various electron deficient alkenes under solvent-free conditions and at room temperature. The catalyst can be reused for six times without noticeable loss of activity.
任务特定的离子液体1,8-二氮杂双环[5.4.0]-十一碳-7-烯-8-乙酸乙酸盐已成功地用作将脂肪族或芳香族胺类氮杂共轭加成到各种缺电子烯烃中的催化剂在无溶剂条件和室温下。该催化剂可以重复使用六次,而不会明显降低活性。