Catalytic carboxylation process for preparing aryl-substituted a

Details Catalytic carboxylation process for preparing aryl-substituted a Catalytic carboxylation process for preparing aryl-substituted a

1993-05-11

1994-06-21

Killos, Paul J.

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

Organic compounds

Carboxylic acid esters

560 9, 560 20, 560 21, 560 55, 560 56, 560100, 562406, C07C 6976, C07C 5110

Patent

active

053229592

ABSTRACT:
A new process for preparing aryl substituted aliphatic carboxylic acid esters is provided. A 1-aryl substituted aliphatic halo compound is reacted with carbon monoxide in the presence of an alcohol in anhydrous conditions at a temperature between about 25.degree. C. and about 200.degree. C. An excess of several moles of anhydrous alcohol is preferred. An acid such as hydrochloric acid may also be added. As catalyst, a mixture of palladium or a palladium compound and a copper compound with at least one acid-stable ligand are present.

REFERENCES:
patent: 4990658 (1991-02-01), Stahly et al.

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