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 ionicliquid, 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 aromaticamines 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.