Synlett 2019; 30(13): 1580-1584
DOI: 10.1055/s-0037-1610718
letter
© Georg Thieme Verlag Stuttgart · New York

Direct Synthesis of 1-Arylprop-1-ynes with Calcium Carbide as an Acetylene Source

Lei Gao
,
Zheng Li
College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou, Gansu 730070, P. R. of China   Email: lizheng@nwnu.edu.cn
› Author Affiliations
The authors thank the National Natural Science Foundation of China (21462038) for the financial support of this work.
Further Information

Publication History

Received: 08 April 2019

Accepted after revision: 27 May 2019

Publication Date:
19 June 2019 (online)


Abstract

A simple method is described for the synthesis of 1-arylprop-1-ynes directly from aromatic aldehyde p-tosylhydrazones by using calcium carbide as an acetylene source. The salient features of this protocol are its use of a readily available and easily handled source of acetylene, its operational simplicity, its high yield, and its broad substrate scope.

Supporting Information