title: Copper-catalyzed distannylation of alkynes.
abstract: A copper(I)-phosphine complex has been found to facilely promote the distannylation of alkynes with the aid of a base, where a catalytically generated Cu-Sn species serves as a key intermediate. The broad versatility of the copper catalysis has been demonstrated by the facile distannylation of unfunctionalized aliphatic alkynes, being hardly achievable with the conventional palladium catalysts.
authors.affiliation: Department of Applied Chemistry, Graduate School of Engineering, Hiroshima University, Higashi-Hiroshima 739-8527, Japan. yhiroto@hiroshima-u.ac.jp.
authors.forename: Hiroto
authors.initials: H
authors.lastname: Yoshida
authors.forename: Ayako
authors.initials: A
authors.lastname: Shinke
authors.forename: Ken
authors.initials: K
authors.lastname: Takaki