Process for preparation of diaryl carbonate

Details Process for preparation of diaryl carbonate Process for preparation of diaryl carbonate

1996-04-03

1997-07-15

Geist, Gary

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

Organic compounds

Carbonate esters

C07C 6996

Patent

active

056485107

ABSTRACT:
A diaryl carbonate is prepared at a high yield and a high selectivity by heating a diaryl oxalate in the presence of an organic phosphorous compound to release carbon monoxide therefrom. A halogen atom-containing compound can be employed in combination with the organic phosphorous compound.

REFERENCES:
patent: 4182726 (1980-01-01), Illuminati
patent: 4544507 (1985-10-01), Foley
patent: 5136077 (1992-08-01), Rand

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