Process for the preparation of chlorine-substituted aromatic ami

Organic compounds -- part of the class 532-570 series – Organic compounds – Amino nitrogen containing

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502326, 502339, 564422, 564423, C07C20936

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active

054100852

ABSTRACT:
Chlorine-substituted aromatic amines are prepared by the hydrogenation of chlorine-substituted aromatic nitro compounds in the presence of a catalyst containing platinum and nickel and/or cobalt on an activated charcoal support, the platinum having been simultaneously deposited and reduced on the activated charcoal support in the preparation of the catalyst. Such catalysts are furthermore prepared, as are catalysts containing noble metals on an activated charcoal support, it also being possible for the latter to be used for the reduction of nitronaphthalenes or nitrotoluenes.

REFERENCES:
patent: 4230637 (1980-10-01), Zander
patent: 5120699 (1992-06-01), Weiss et al.
patent: 5120875 (1992-06-01), Birkenstock
patent: 5236685 (1993-08-01), Fuchs et al.
J. S. Taylor & K. M. Lloyd, "Chloracne from 3,3',4,4'-Tetrachloroazoxybenzene . . . ", Perman Series on Environmental Science, vol. 5. pp. 535-544. (Feb. 1982).

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