Montedison S.p.a.

Guglielmo Rucci

Giovanni Agnes

Claudio Santini

Franco Guerrieri

Giuseppe Bimbi

Alkyl diesters of saturated dicarboxylic acids are prepared by catalytic reaction of olefinic hydrocarbons with carbon monoxide and alkoxylic copper salts, in the presence of a Palladium catalyst. The products obtained find useful applications in the field of plasticizers for synthetic resins, in the field of lubricants and of hydraulic fluids, etc.

Process for the preparation of diesters of saturated carboxylic acids

There is provided a process for the preparation of esters of oxalic acid comprising reacting at a temperature of between about 20.degree. and 200.degree. C. a copper (II) compound having the formula Cu(OR)X, where R is alkyl having from 1 to 8 carbon atoms and X is chlorine or bromine, with carbon monoxide in the presence of a catalyst selected from the group consisting of palladium salts, metallic palladium and zero valent palladium complexes.

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Novara, Italy

Guglielmo Rucci