Process for the preparation of diphenylamines

Details Process for the preparation of diphenylamines Process for the preparation of diphenylamines

1992-09-24

1994-08-16

Raymond, Richard L.

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

Organic compounds

Amino nitrogen containing

C07C20926

Patent

active

053388852

ABSTRACT:
Substituted or unsubstituted diphenylamnines can be obtained by reaction of substituted or unsubstituted anilines with substituted or unsubstituted cyclohexanones over a supported catalyst containing rhodium or a combination of rhodium with another platinum metal at 200.degree.-450.degree. C. and 0.1-20 bar.

REFERENCES:
patent: 3219704 (1965-11-01), Wilder et al.
patent: 4057581 (1977-11-01), Krall et al.
patent: 4729977 (1988-03-01), Immel et al.
patent: 4804783 (1989-02-01), Nagata et al.
patent: 4871875 (1989-10-01), Nagata et al.
patent: 4902661 (1990-02-01), Immel et al.
patent: 4952731 (1990-08-01), Nagata et al.

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