Process for the carbonylation of olefin.

摘要

The invention relates to a process for the carbonylation of olefins in which process an olefin is reacted with carbon monoxide in the presence of an alcohol or water and of a catalyst system, obtainable by combining: (a) a metal of Group VIII or a compound thereof and (b) a bidentate phosphine, arsine and/or stibine derivative, wherein as bidentate (b) a compound is selected having the general formula R<1>R<2>-M<1>-R-M<2>-R<3>R<4> I wherein M<1> and M<2> are independently P, As or Sb, R is a divalent organic bridging group with at least 2 carbon atoms in the bridge, and R<1>-R<4> represent the same or different optionally substituted tertiary alkyl groups. The invention further relates to a catalyst system suitable for this process. s