A simple, efficient and green procedure for Michael addition catalyzed by [C4dabco]OH ionic liquid

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.

A bis Michael addition of active methylene compounds to α,β-unsaturated carboxylic esters and nitriles is catalyzed by [C4dabco]OH under solvent free condition. The catalyst can be recycled.Figure optionsDownload as PowerPoint slide