摘要 |
<p>PREPARATION OF CARBOXYLIC DI-ESTERS OR ACIDS A process for the carbonylation of a conjugated diene with CO and an alcohol or water in the presence of an aprotic solvent is carried out in the presence of a dissolved catalytic system prepared by combining a Pd(II) compound, at least 5 mol of a triarylphosphine per gram atom of Pd and at least 1 mol of HCl per gram atom of trivalent P.</p> |