| 摘要 |
Ethylenically unsaturated compounds are reacted with carbon monoxide and hydrogen in the presence of a catalyst. The catalyst components are:- a) a source of Group VIII metal cations - preferably a palladium salt, b) a source of anions, other than halide ions; the preferred source being trifluoromethane sulphonic acid, c) a source of bidentate ligands of formula: R 1 R 2 M 1 RM 2 R 3 R 4 wherein:- M 1 and M 2 are, independently, P,As and Sb, ```R is a 1-4 atom bridge, ```R 1 and R 2 together represent a bivalent cyclic group, as may ```R 3 and R 4 , which may also be independent hydrocarbyl groups, and d) is a iodide of an alkali or alkaline-earth metal. |
