trans-Allylstannylation of certain acetylenes catalysed by ZrCl4

Abstract
The trans-allylstannylation of simple acetylenes 1 is catalysed by ZrCl4 to produce the corresponding alkenylstannanes 3 (or alkenes 4 upon protonolysis of the C–Sn bond) in a regio- and stereo-selective manner.