Process for the production of carboxylic amides using alkyltin c

Details Process for the production of carboxylic amides using alkyltin c Process for the production of carboxylic amides using alkyltin c

1980-05-02

1981-07-07

Niebling, John F.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

2604045, 564131, 564141, C09F 500, C11C 300

Patent

active

042774101

ABSTRACT:
An improved process is provided for the amidation of carboxylic acids. For the process a carboxylic acid is reacted with ammonia gas at an elevated temperature and at atmospheric pressure or above in the presence of an alkyltin catalyst, preferably an alkyltin compound containing both hydroxyl and halo groups. High conversions are achieved with the process and the resulting products have low nitrile contents.

REFERENCES:
patent: 2013108 (1935-09-01), Reppe et al.
patent: 3674851 (1972-07-01), Senoo et al.
patent: 3801610 (1974-04-01), Werdehausen
patent: 3816483 (1974-06-01), Werdehausen

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