Metal-Free Hydroarylation of Alkynes: A Very Convenient, Simple Procedure for Substituted Arylalkenes

Abstract

Hydroarylation of aryl-substituted alkynes with simple and substituted arenes was conducted in the presence of trifluoroacetic acid in dichloromethane without any metal catalysts or additives. Electron-rich arenes coupled with aryl-substituted alkynes to give 1,1-diarylalkenes in good to high yields.

Key words

hydroarylation - alkynes - arenes - trifluoroacetic acid

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9

Identified by comparison with a commercial sample from Tokyo Chemical Industry Co.