Cleavage of C-S and O-H bonds by platinum(O) complexes to give five-membered 1,2-oxaplatinacycles

Article abstract of DOI:10.1002/anie.201001937

chemical equation presented Spectacular platinum(0): 1,2-Oxaplatinacycles 2 were formed unexpectedly from 2-hydroxybenzyl sulfide derivatives 1 by bond cleavage mediated by platinum(O) (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.