| 摘要 |
PROCESS FOR THE CARBONYLATION OF ACETYLENICALLY UNSATURATED COMPOUNDS Process for the preparation of alpha,beta-olefinically unsaturated compounds by means of carbonylation of acetylenically unsaturated compounds with carbon monoxide in the presence of a hydroxyl-containing compound in the liquid phase, carried out in the presence of a catalytic system that can be formed from: (a) a palladium compound (b) a protonic acid (c) an organic phosphine according to the formula I <IMG> wherein R1 represents a heterocyclic 5 or 6 atom ring, comprising at least nitrogen as hetero atom, which ring is optionally substituted and/or may form part of a larger condensed ring structure that is optionally substituted, and wherein R2 and R3 each have the aforesaid meaning of R1 or may represent an optionally substituted aryl group, and organic phosphines and compositions comprising said phosphines as well as catalytic systems whereof said phosphines form part.
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