Hydrogenation of halogen-substituted aromatic nitro compounds

Details Hydrogenation of halogen-substituted aromatic nitro compounds Hydrogenation of halogen-substituted aromatic nitro compounds

1981-08-27

1983-03-01

Doll, John

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

Organic compounds

Carboxylic acid esters

560 22, 562437, 562456, 564417, C07C10154, C07C 8511

Patent

active

043755500

ABSTRACT:
This invention relates to the hydrogenation of halogen-substituted aromatic nitro compounds and in particular provides a novel catalyst for use in such processes.
In more detail a catalyst suitable for use in the hydrogenation of halogen-substituted aromatic nitro compounds substantially without simultaneous dehalogenation comprises one or more metals from the group consisting of platinum, palladium, rhodium, iridium, ruthenium and osmium supported on or impregnated into a carrier material comprising carbon activated with phosphoric acid or a salt thereof.

REFERENCES:
patent: 3474144 (1969-10-01), Craig et al.
patent: 3761425 (1973-09-01), Baessler et al.
patent: 4020107 (1977-04-01), Kosak
Hassler, "Activated Carbon", p. 182, (1963).
Kosak, "Catalysis in Organic Syntheses", pp. 107-117, (1980).

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