Synthesis of oxalate esters from carbon monoxide and...

Details Synthesis of oxalate esters from carbon monoxide and... Synthesis of oxalate esters from carbon monoxide and...

C - Chemistry, Metallurgy

07

C

260/486.6

C07C 69/36 (2006.01)

Patent

CA 1067510

SYNTHESIS OF OXALATE ESTERS FROM CARBON MONOXIDE AND CARBOXYLIC ORTHO ESTERS ABSTRACT OF THE DISCLOSURE A process for the preparation of oxalate esters by the catalytic oxidative carbonylation of carboxylic ortho esters with carbon monoxide and oxygen-containing gas in the presence of a metal salt catalyst, an amine base and a catalytic amount of an alcohol. Preferably a catalytic amount of particular metal oxidizing salts is employed along with a catalytic amount of an acid or an amine salt compound. Alternatively various counterions and ligands of the metal salt catalysts may be employed. 1.

259680

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