Preparation of carboxylic acid anhydrides

Details Preparation of carboxylic acid anhydrides Preparation of carboxylic acid anhydrides

1981-05-28

1982-06-15

Trousof, Natalie

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

C07C 5156, C07C 5154, C07C 5312

Patent

active

043350585

ABSTRACT:
A carboxylic acid anhydride, such as propionic anhydride, is prepared from an olefin and a carboxylic acid in carbonylation processes comprising the use of a halide, 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: 2549453 (1951-04-01), Gresham et al.
patent: 2593440 (1952-04-01), Hagemeyer, Jr.
patent: 2768968 (1956-10-01), Reppe et al.

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