Process for the preparation of unsaturated carboxylate esters

摘要

Process for the preparation of carboxylate esters of alpha-ethylenically unsaturated alcohols by reacting an ethylenically unsaturated compound with carbon monoxide and an enolizable ketone in the presence of a catalytic system formed by combining a palladium catalyst, a triarylphosphine and a protonic acid having a pKa below 1.5, except hydrohalogenic acids and carboxylic acids.