Abstract

Cyclopropanone derivative 1-(arylsulfonyl)cyclopropanol 4 simply prepared from the reaction of cyclopropanone ethyl hemiacetal 3 with sodium arylsufinate in the presence of formic acid is a new cyclopropanone equivalent to react with terminal acetylenes, and disubstituted amines in water catalyzed by AuCl 3, to provide an unprecedented synthesis of 1-alkynyl cyclopropylamines in moderate yields.

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