The present invention provides a catalyst system capable of catalyzing the carbonylation of an ethylenically unsaturated compound, which system is obtainable by combining:
a) a metal of Group VIB or Group VIIIB or a compound thereof,
b) a bidentate phosphine, arsine or stibine ligand, and
c) an acid,
wherein the ligand is present in at least a 2:1 molar excess compared to the metal or the metal in the metal compound, and that the acid is present in at least a 2:1 molar excess compared to the ligand, a process for the carbonylation of an ethylenically unsaturated compound, a reaction medium, and use of the system.
本发明提供了一种
催化剂体系,能够催化
烯烃不饱和化合物的羰基化反应,该体系可通过组合以下成分获得:a) 第VIB族或第VIIIB族的
金属或其化合物,b) 双齿膦、
砷或
锑配体,以及c) 酸。其中,与
金属或
金属化合物相比,
配体的存在量至少是2:1的摩尔过量,而酸的存在量至少是与
配体相比的2:1的摩尔过量。还提供了一种
烯烃不饱和化合物羰基化的方法、反应介质以及该体系的用途。