申请人:SHELL INTERNATIONALE RESEARCH
MAATSCHAPPIJ B.V.
公开号:EP0495547A2
公开(公告)日:1992-07-22
The invention relates to a process for the monocarbonylation of optionally substituted olefinically unsaturated compounds by reaction with carbon monoxide and a coreactant in the presence of a catalyst system comprising:
a) a source of palladium cations,
b) a source of bidentate diphosphine, and
c) a source of anions,
characterized in that the diphosphine is selected from the group of diphosphines of formula I,
R¹R²P-X-PR³R⁴ (I)
wherein R¹, R², R³ and R⁴ independently represent an optionally substituted aliphatic group, or R¹ and R² together and/or R³ and R⁴ together represent an optionally substituted bivalent aliphatic group, and X represents a bivalent bridging group containing from 1 to 10 atoms in the bridge, to produce various carbonyl compounds including aldehydes, ketones, esters, and amides. The invention also relates to certain catalyst systems useful in this reaction.
本发明涉及一种在催化剂体系存在下,通过与一氧化碳和核心反应物反应,对任选取代的烯烃类不饱和化合物进行单羰基化的工艺,该催化剂体系包括
a) 钯阳离子源、
b) 双叉二膦源,以及
c) 阴离子源、
其特征在于,二膦选自式 I 的二膦组、
r¹r²p-x-pr³r⁴ (i)
其中 R¹、R²、R³ 和 R⁴ 各自代表任选取代的脂肪族基团,或 R¹ 和 R² 共同和/或 R³ 和 R⁴ 共同代表任选取代的二价脂肪族基团,X 代表桥中含有 1 至 10 个原子的二价桥基,从而生成各种羰基化合物,包括醛、酮、酯和酰胺。本发明还涉及某些用于该反应的催化剂体系。