Preparation of a para-aminodiphenylamine

Details Preparation of a para-aminodiphenylamine Preparation of a para-aminodiphenylamine

1990-03-08

1991-10-01

Hollrah, Glennon H.

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

Organic compounds

Amino nitrogen containing

552301, 564396, C07C20924

Patent

active

050535404

ABSTRACT:
The present invention relates to a process for the preparation of a p-aminodiphenylamine comprising reacting N-phenylquinoneimine of the formula: ##STR1## with ammonia, ammonium hydroxide or mixtures thereof, wherein the molar ratio of N-phenylquinoneimine to NH.sub.3 in the reaction mixture ranges from about 1:1 to 1:80.

REFERENCES:
patent: 1867105 (1932-07-01), Schirmacher et al.
patent: 3875227 (1975-04-01), Kroll et al.
patent: 4045170 (1977-08-01), Kalopissis et al.
patent: 4355180 (1982-10-01), Goetz et al.
patent: 4429157 (1984-01-01), Disteldorf et al.
patent: 4968843 (1990-11-01), Cottman

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