Process for producing carbonic acid ester

Details Process for producing carbonic acid ester Process for producing carbonic acid ester

1987-09-01

1992-02-18

Dees, Jose G.

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

Organic compounds

Carbonate esters

558260, 558274, 558265, C07C 6996, C07C 6800

Patent

active

050896504

ABSTRACT:
Disclosed herein is a process for producing a carbonic acid ester by reacting alcohol, carbon monoxide, and oxygen with one another in the presence of a copper compound alone or together with a platinum group metal compound and a reaction accelerator, characterized in that (I) the reaction is carried out in a nitrile compound or amide compound as a solvent, (II) the reaction is carried out in the presence of a reaction accelerator which consists of a quaternary phosphonium halide and a quaternary phosphonium weak acid salt or quaternary phosphonium alkoxide, and/or (III) the reaction is carried out in the presence of a quinoid compound or a compound that changes into a quinoid compound under the reaction conditions.

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patent: 4638076 (1987-01-01), Bhattacharya
Roberts et al., Basic Principles of Organic Chemistry W. A. Benjamin, Inc., N.Y., 1964, pp. 1196 and 1210.

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