Production of cyclic carbonates

Details Production of cyclic carbonates Production of cyclic carbonates

1991-09-17

1992-10-06

Tsang, Cecilia

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

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

549228, 549229, C07D31712

Patent

active

051533332

ABSTRACT:
A process for the preparation of 2-oxo-1, 3-dioxolanes comprises reacting an epoxy compound having at least one functional epoxy group in the optional presence of an inert solvent with carbon dioxide at 60.degree. C. to 200.degree. C. at normal pressure in the presence of a quaternary phosphonium compound as catalyst and novel quaternary phosphonium compounds useful as catalysts in the said process.

REFERENCES:
patent: 4786741 (1988-11-01), Sachs
patent: 4851555 (1989-07-01), Weinstein
patent: 4892954 (1990-01-01), Brindopke et al.
patent: 4931571 (1990-06-01), Weinstein

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