Process for the preparation of oxalate esters from carbon monoxi

Details Process for the preparation of oxalate esters from carbon monoxi Process for the preparation of oxalate esters from carbon monoxi

1976-03-22

1977-12-27

Myers, Jane S.

Organic compounds -- part of the class 532-570 series

Organic compounds

Carboxylic acid esters

2604654, 560193, 560196, 560197, 560198, C07C 6936

Patent

active

040654907

ABSTRACT:
A process for the preparation of oxalate esters by the catalytic oxidative carbonylation of an enol ether with carbon monoxide, an alcohol and oxygen-containing gas in the presence of a metal salt catalyst and an amine base. In addition, 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.

REFERENCES:
patent: 3393136 (1968-07-01), Fenton et al.
Fenton et al., J. Org. Chem. 39, No. 5, 701-704, (1974).

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