Process for preparing aromatic amines

Details Process for preparing aromatic amines Process for preparing aromatic amines

1996-02-21

1998-04-28

Burn, Brian M.

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

Organic compounds

Amino nitrogen containing

564418, 564420, 564423, C07C20936

Patent

active

057446431

ABSTRACT:
The present invention relates to a process for preparing aromatic amines by reacting an aromatic nitro compound with carbon monoxide in a solvent mixture comprising water and a water-insoluble organic solvent by means of a catalyst comprising palladium and a water-soluble phosphine under a pressure of from 5 to 300 bar and at a temperature of from 50 to 200.degree. C., and separating the aqueous phase and the organic phase.

REFERENCES:
patent: 4120901 (1978-10-01), Hobbs et al.
patent: 5105012 (1992-04-01), Theodoridis
patent: 5411973 (1995-05-01), Russell et al.
Journal of Natural Gas Chemistry, Bd. 4, Nr. 4, Apr. 1995, pp. 393-399, XP 000195871 Xia Chun-Gu "Ruthenium-TPPTS catalyzed reduction of nitrobenzene to aniline".
Journal of the Chemical Society, Chemical Communications, 1994 Letchworth GB, pp. 863-864, XP 000195897 Nagavelli P. "Palladium Complex-Potassium Carbonate-catalysed Reductive Carbonylation of Mono- and Di-nitroaromatic Compounds".

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