Abstract
A series of ionic liquids with different cations and anions were synthesized and their performances for the silver catalyzed one-pot A3-coupling reactions were investigated. The selection showed that the combination of AgNO3 and ionic liquid [TMG][TFA] showed highest catalytic activity. This catalytic system was then utilized for the production a series of propargylamines with satisfactory isolated yields. This reaction system is very simple and easy to be conducted because no inert gases or any other additional solvents, basic additives are needed. This also led to the convenience of the following work-up procedures and the recycle and reutilization for the catalytic system. The ionic liquid was believed to be involved in the catalytic procedure through the interaction with substrates or catalysts as co-catalyst and ligands.
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