Hydrogenation of aromatic nitriles to primary amines

Details Hydrogenation of aromatic nitriles to primary amines Hydrogenation of aromatic nitriles to primary amines

1979-02-01

1980-01-29

Doll, John

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

2605709, C07C 8512

Patent

active

041861469

ABSTRACT:
In the process of hydrogenating aromatic nitriles to primary amines whereby the nitrile is hydrogenated in a solvent system containing added ammonia using a cobalt or nickel catalyst, the improvement of employing an ether as solvent and carrying out the hydrogenation in the presence of water in an amount of from about 10% to about 20% by volume of the ether solvent whereby the rate of reaction is increased, secondary amine by-products are reduced and catalyst may be recycled without adverse effects.

REFERENCES:
patent: 3069469 (1962-12-01), Wilkes
patent: 3255248 (1966-06-01), Seemengoth et al.
patent: 3372195 (1968-03-01), Dile
patent: 3720702 (1973-03-01), Nelson et al.
patent: 3923891 (1975-12-01), Greenfield at al.
patent: 4003933 (1977-01-01), Drake
patent: 4140720 (1979-02-01), Drake
Rupe et al., "Helv. Chem. Acta.", 6, pp. 865-880 (1923).

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