Oxidative carbonylation of alcohols to produce dialkyl oxalates

Details Oxidative carbonylation of alcohols to produce dialkyl oxalates Oxidative carbonylation of alcohols to produce dialkyl oxalates

1980-04-21

1981-07-28

Mars, Howard T.

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

Organic compounds

Carboxylic acid esters

560190, C07C 6736

Patent

active

042811740

ABSTRACT:
Preparation of dialkyl oxalates by the oxidative carbonylation of alcohols which comprises reacting a mixture of carbon monoxide and air with an alcohol in the presence of a catalytic amount of a catalyst comprising palladium in complex combination with a ligand, a small amount of a quinone, and a redox agent.
Advantageously the reaction is carried out in the presence of a solvent.

REFERENCES:
patent: 3393136 (1968-07-01), Fenton et al.
patent: 3994960 (1976-11-01), Yamazaki et al.
patent: 4005128 (1977-01-01), Zehner et al.
patent: 4005129 (1977-01-01), Zehner
patent: 4005130 (1977-01-01), Zehner
patent: 4076949 (1978-02-01), Zehner
patent: 4118589 (1978-10-01), Cassar et al.
Fenton et al., J. Org. Chem. 39(5) pp. 701-704 (1974).
Yamazaki et al., as cited in CA 85 176873f (1976).

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