| 摘要 |
The present invention discloses this invention relates to a process for the conversion of olefinically unsaturated compounds to corresponding carboxylic acids and their esters of formula IIIwherein R1, R2, R3 and R4 may independently be hydrogen, alkyl, aryl, arylalkyl, cycloaliphatic with or without substituents, R and R5 may be H and COOR' or vice versa wherein R' may be H in the case of acids and may be alkyl, aryl, arylalkyl, cycloaliphatic with or without substituents, in the case of esters, wherein said conversion is carried out in the presence of a transition metal complex catalyst of the formula. a transition metal complex catalyst of the formula Iwherein M is a group VIII metal, R1, R2, and R3 are substituents on the phosphine ligand and are selected from hydrogen, alkyl, aryl, arylalkyl arylalkyl cycloaliphatic, X is selected from aryl or alkyl sulphonato or aryl or alkyl carbonato or formato or halides selected from Cl-, Br- or I-; NO is a semilabile anionic chelating ligand containing a N donor and an O- group, 1<n<10, and a protonic acid (or hydrogen gas) and a proton source, in an organic solvent, in a carbon monoxide atmosphere in a homogeneous medium, with or without excess phosphorus ligand.
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