Process for the preparation of an ester.

摘要

Process for the preparation of a terminal ester by carbonylation of an internally unsaturated organic compound in the presence of an alcohol, carbon monoxide, palladium, an acid with a pKa of less than 2 (measured at 18 DEG C in an aqueous solution) and a bidentate organic phosphorus, antimony or arsenic ligand compound having a bridging group, wherein the bridging group comprises a bis( eta -cyclopentadienyl) coordination group of a transition metal.