| 摘要 |
Process for the carbonylation of an olefinically unsaturated compound with CO in the presence of water, an alcohol and/or a carboxylic acid and in the presence of a homogeneous catalytic system prepared by combining:- a) a Pd(II) compound, b) at least 5 mol of a triarylphosphine per gram atom Pd, and c) at least 1 mol of a non-carboxylic acid having a pKa > 2 and/or of a sterically hindered carboxylic acid having a pKa < 4.5 per mol phosphine. o |
