Preparation of cyclic carbonates

Details Preparation of cyclic carbonates Preparation of cyclic carbonates

1988-07-21

1989-11-14

Raymond, Richard L.

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

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

549229, 549230, C07D31712, C07D32304

Patent

active

048809420

ABSTRACT:
Cyclic carbonates are prepared by reacting a 1,3-diol or 1,2-diol with a dialkylcarbonate in the presence of a basic catalyst. They are obtained in higher yields with higher purity by subjecting the reaction mixture to heat aging under vacuum in the presence of the basic catalyst, and recovering the cyclic carbonate from the mixture.

REFERENCES:
patent: 1995291 (1935-03-01), Carothers
Chemical Abstracts, 93:53769g (1983) (Abstract of J.P. 58-49377).

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