PROCESS FOR THE CARBONYLATION OF AN ACETYLENICALLY UNSATURATED COMPOUND

摘要

A process capable of the low temperature carbonylation of an acetylenically unsaturated compound with carbon monoxide in the presence of an allenically unsaturated compound using a catalytic system, which is at least tolerant of the allenically unsaturated compound, formed from a) a palladium compound; b) a protonic acid; c) an organic phosphine of form (I), wherein R<1> is an optionally substituted aryl group; R<2> and R<3> are joined to form an optionally substituted cyclic moiety comprising at least one optionally substituted alkylene group.