Preparation of carboxylic acid anhydrides

Details Preparation of carboxylic acid anhydrides Preparation of carboxylic acid anhydrides

1980-12-24

1982-06-15

Trousof, Natalie

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

260546, C07C 5156, C07C 5154, C07C 5312

Patent

active

043350593

ABSTRACT:
A carboxylic acid anhydride, such as acetic anhydride, is prepared from a carboxylate ester or a hydrocarbyl ether in carbonylation processes comprising the use of an iodide, carbon monoxide and a molybdenum-nickel or tungsten-nickel component in the presence of a promoter comprising an organo-phosphorus compound or an organo-nitrogen compound wherein the phosphorus and nitrogen are trivalent.

REFERENCES:
patent: 4002678 (1977-01-01), Naglieri et al.
patent: 4115444 (1978-09-01), Rizkalla

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