Chinese Chemical Letters

A simple, efficient and green procedure for Michael addition catalyzed by [C 4 dabco] OH ionic liquid

S Keithellakpam, WS Laitonjam

Index: Keithellakpam, Sanjoy; Laitonjam, Warjeet S. Chinese Chemical Letters, 2014 , vol. 25, # 5 p. 767 - 770

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Citation Number: 9

Abstract

Abstract A dabco-based basic ionic liquid, 1-butyl-4-aza-1-azaniabicyclo [2.2. 2] octane hydroxide, has been developed as a catalyst for a convenient and rapid method for the Michael addition of active methylene compounds to α, β-unsaturated carboxylic esters and nitriles. The method is very simple, and the yields are very high. The catalyst can be recycled several times without much loss of activity.