Novel insertion of ethynylbenzene derivatives bearing an electron-withdrawing substituent at the 4-position into a P–C bond and their transannular insertion between a metal atom and an ipso-carbon atom of the phosphine ligand

Abstract

Reactions of Cp*MCl(P–O) (M = Rh, Ir) bearing P–O coordination with ethynylbenzene derivatives having an electron-withdrawing group in the presence of a PF₆ anion result in either insertion into a P–C bond or a transannular addition between a metal and an ipso-carbon of the phosphine.