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  • Alkynylation of alpha-halocarbonyl compounds--a stille-type cross-coupling for the formation of C(sp)-C(sp3) bonds under neutral conditions.

Alkynylation of alpha-halocarbonyl compounds--a stille-type cross-coupling for the formation of C(sp)-C(sp3) bonds under neutral conditions.

Chemical communications (Cambridge, England) (2007-09-12)
Wei Shi, Chao Liu, Zai Yu, Aiwen Lei
ABSTRACT

A direct alkynylation of readily available alpha-halo esters and amides with high yields is described herein; a distinct switch from diyne formation to alkynylation products was attained under neutral conditions.

MATERIALS
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Product Description

Sigma-Aldrich
Bis(benzonitrile)palladium(II) chloride, 95%