Process for the preparation of aminonitriles

Details Process for the preparation of aminonitriles Process for the preparation of aminonitriles

1991-12-09

1993-03-16

Brust, Joseph Paul

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

Organic compounds

Nitriles

C07C25330

Patent

active

051946572

ABSTRACT:
A process for preparing an alpha aminonitrile comprises providing a cyclic or acyclic aliphatic ketone in a reactor, adding ammonia to the reactor, mixing the ketone and the ammonia, and adding hydrogen cyanide to the reactor to convert the hydrogen cyanide to an aminonitrile. Preferably, the reactor is purged with ammonia before the addition of hydrogen cyanide. The hydrogen cyanide may be added to the reactor at a constant rate, or it may be added to the reactor at a rate that decreases over time. A portion of the ketone may be added to the reactor during the addition of the hydrogen cyanide to the reactor.

REFERENCES:
patent: 2205995 (1940-06-01), Ulrich et al.
patent: 3541132 (1970-11-01), Knowles
Chemical Abstracts, vol. 105, No. 22, Dec. 1, 1986, Columbus, Ohio; abstract No. 193353k, Z. Vesela et al., "2-amino-2-methylpropionitrile".

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