Tetrahedron

A convenient synthesis of 1-and 2-alkynes

J Klein, E Gurfinkel

Index: Klein,J.; Gurfinkel,E. Tetrahedron, 1970 , vol. 26, p. 2127 - 2131

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Citation Number: 32

Abstract

Terminal olefins are transformed by bromination and subsequent dehydrobromination at room temperature with a solution of sodamide or sodium hydride in DMSO to pure terminal acetylenes. trans Dehydrobromination of vinylic bromides proceeds faster than the cis. Conditions were found, where the 1-alkynes are converted into 2-alkynes.

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