Carbon−Carbon Bond Formation on Reaction of a Copper(I) Stannyl Complex with Carbon Dioxide

Abstract

The reaction of (IPr)CuOt-Bu (IPr = 1,3-bis(2,6-diisopropylphenyl)imidazol-2-ylidene) with triphenylstannane forms a stannyl complex, (IPr)CuSnPh3, by deprotonation of the tin−hydrogen bond. This stannyl complex reacts with CO2 to afford (IPr)CuO2CPh as the sole copper-containing species. A tin−carbon bond in (IPr)CuSnPh3 also undergoes facile cleavage by mild acids such as 2,4-lutidinium chloride.