Site- and regio-selective incorporation of carbon dioxide into the C(sp2)Si bond of benzosilacyclobutenes

Abstract

A reaction of benzosilacyclobutenes with carbon dioxide is catalyzed by a nickel complex having an N-heterocyclic carbene ligand. Carbon dioxide inserts into the C(sp2)Si bond in a site- and regio-selective manner to form a carboncarbon bond, furnishing benzoic acid derivatives.