Platinum hydroformylation catalysts containing diphenylphosphine oxide ligands

Abstract

Platinum complexes of the general formula Pt(H)(Ph2PO)(Ph2POH)(PPh3)(1a) catalyse the hydroformylation of hept-1-ene and, more significantly, hept-2-ene, yielding products of high linearity (90 and 60%, respectively); the intermediate alkyl and acyl complexes (1c–e) which most often escape direct observation in a catalytic system, have been successfully isolated and identified.