Process for the carbonylation of acetylenically unsaturated compounds

摘要

A process for the carbonylation of acetylenically unsaturated compounds by reaction with carbon monoxide and a co-reactant in the presence of a catalyst system based on: (a) a source of platinum; (b) a bidentate ligand of the formula R<1>R<2>M<1>-R-M<2>R<3>R<4>, wherein M<1> and M<2> independently are P, As or Sb, R represents a bivalent substituted or non-substituted bridging group containing from 1 to 5 atoms in the bridge, R<1> and R<2> together are a substituted or non-substituted bivalent group whereby the two free valencies are linked to M<1>, and R<3> and R<4> together are a substituted or non-substituted bivalent group whereby the two free valencies are linked to M<2> or R<3> and R<4> independently are substituted or non-substituted hydrocarbyl groups; and (c) a source of anions.