Cleavage of CS and OH Bonds by Platinum(0) Complexes To Give Five‐Membered 1,2‐Oxaplatinacycles

Abstract

Spectacular platinum(0): 1,2-Oxaplatinacycles 2 were formed unexpectedly from 2-hydroxybenzyl sulfide derivatives 1 by bond cleavage mediated by platinum(0) (see scheme; nb=norbornene). The thermal reaction of 2 gave novel six-membered 1,2,3-oxaphosphaplatinacycles through ring expansion accompanied by the insertion of a phosphorus atom into the PtO bond and the 1,2-shift of a phenyl group.