Organic compounds -- part of the class 532-570 series – Organic compounds – Amino nitrogen containing
Patent
1993-10-20
1995-04-25
Robinson, Allen J.
Organic compounds -- part of the class 532-570 series
Organic compounds
Amino nitrogen containing
502326, 502339, 564422, 564423, C07C20936
Patent
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).
Birkenstock Udo
Kipshagen Walter
Schmidt Herbert
Schulz Thomas-Jorn
Zirngiebl Eberhard
Bayer Aktiengesellschaft
Burn Brian M.
Robinson Allen J.
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