Process for preparing a diester of oxalic acid in the gaseous ph

Details Process for preparing a diester of oxalic acid in the gaseous ph Process for preparing a diester of oxalic acid in the gaseous ph

1981-08-18

1983-05-17

Trousof, Natalie

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

Organic compounds

Carboxylic acid esters

560190, 560204, C07C 6736, C07C 6936

Patent

active

RE0312452

ABSTRACT:
A process for preparing a diester of oxalic acid which comprises bringing carbon monoxide into contact with an ester of nitrous acid or with an alcohol and a nitrogen oxide or a hydrate of the nitrogen oxide in the gaseous phase in the presence of a solid catalyst containing metallic palladium or a salt thereof, a gas containing molecular oxygen being introduced into the reaction system in cases where said nitrogen oxide or a hydrate of the nitrogen oxide requires molecular oxygen together with the alcohol to form an ester of nitrous acid.

REFERENCES:
patent: 2739166 (1956-03-01), Treacy
patent: 4138587 (1979-02-01), Yamasaki et al.
Karrer; Organic Chemistry, p. 100 (1938).

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