Process for the preparation of dialky carbonates

Details Process for the preparation of dialky carbonates Process for the preparation of dialky carbonates

1994-07-22

1997-02-04

Nazario-Gonzalez, Porfirio

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

Organic compounds

Carbonate esters

C07C 6996

Patent

active

055999654

ABSTRACT:
C.sub.1 -C.sub.4 -Dialkyl carbonates can be obtained from the corresponding C.sub.1 -C.sub.4 -alkanols, carbon monoxide and oxygen by reacting these substances in the presence of Cu salts, the water of reaction being limited to less than 10 wt % in the reaction mixture by at least partial withdrawal.

REFERENCES:
patent: Re29338 (1977-08-01), Perrotti et al.
patent: 5142087 (1992-08-01), Joerg et al.
patent: 5233072 (1993-08-01), Kricsfalussy et al.
patent: 5274163 (1993-12-01), Rechner et al.
Japanese Patents Report, 5:General Organic, p. 9, vol. $, No. 17; JA66-075394, JA-7011-129-R, Toyo Rayon Co., Ltd., "Organic carbonates from alcohol and carbon monoxide in the presence of cupric ions"; (Apr. 22, 1970).

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