Process for preparing dialkyl oxalates

Details Process for preparing dialkyl oxalates Process for preparing dialkyl oxalates

1975-03-21

1976-11-30

Myers, Jane S.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

260463, 260488K, C07G 6936

Patent

active

039949605

ABSTRACT:
A process for preparing dialkyl oxalates by reacting an aliphatic alcohol with carbon monoxide and oxygen under pressure. In the present process, (a) a catalyst consisting of a mixture of a salt of a platinum group metal and a salt of copper or iron and (b) an accelerator composed of one or more compounds selected from the group consisting of carbonates, hydrogen carbonates, nitrates, sulfates, hydroxides and carboxylates of an alkali metal and of an alkaline earth metal, pyridine, quinoline, glycine, alanine, urea, thiourea, formamide, acetamide, acetylacetone, ethyl acetoacetate, dimethylglyoxime, a tertiary amine, and a substituted or unsubstituted triphenyl phosphine are both used.

REFERENCES:
Fenton et al., J. Org. Chem. 39, No. 5, pp. 701-704, (1974).

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