Abstract

A decarboxylative hydroamination cascade reaction of 3-arylpropiolic acids with N-heterocycles under transition-metal-free conditions was developed. 3-Arylpropiolic acids were found to react smoothly with a range of N-heterocycles under the effect of <i>t</i>-BuOK to afford <i>N</i>-vinyl heterocycles in moderate to excellent yields. This reaction represents the first decarboxylative hydroamination of 3-arylpropiolic acids without the aid of a transition-metal catalyst.

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