Process for preparing aromatic carbonates

Details Process for preparing aromatic carbonates Process for preparing aromatic carbonates

1993-03-03

1994-02-08

Lee, Mary C.

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

Organic compounds

Carbonate esters

558271, 558273, 558274, C07C 6996, C07C 6806

Patent

active

052849651

ABSTRACT:
A process is described for preparing aromatic carbonates by transesterification of aliphatic carbonates with phenolic compounds in the presence of titanium compounds known per se, in which, before work-up, the transesterification mixture is cooled to a temperature below 120.degree. C., during which the mixture must remain liquid, the titanium-containing precipitate which is deposited is separated off, and the aromatic carbonate is then obtained by methods which are conventional per se.

REFERENCES:
patent: 4045464 (1977-08-01), Romano et al.
patent: 4182726 (1980-01-01), Illuminati et al.
patent: 4410464 (1983-10-01), Hallgren

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