Carbonylation of ester

摘要: A vinyl ester alkoxycarbonylation process comprising reacting a with carbon monoxide in the presence of an alkanol and catalyst system. The system used is obtainable by combining: a) metal Group VIII B or compound thereof, b) bidentate ligand general formula (I) R covalent bridging group; R1 together Q2 to which form optionally substituted 2-Q2-tricyclo[3.3.1.1{3,7}]decyl group derivative thereof (2-PA); R2 R3 independently represent univalent radicals up 20 atoms jointly bivalent radical atoms; Q1 each phosphorous, arsenic antimony. carried out for production 3-hydroxy propanoate acid (II) CH2(OH)CH2C(O)OR28 (II). lactate III.