Process for the preparation of anilines substituted by chlorine

Details Process for the preparation of anilines substituted by chlorine Process for the preparation of anilines substituted by chlorine

1980-01-24

1982-07-20

Hines, Robert V.

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

Organic compounds

Amino nitrogen containing

564309, 564315, 564330, 564417, C07C 8524

Patent

active

043407595

ABSTRACT:
A process for the dechlorination of aromatic nitro or amino compounds consists in reacting anilines or nitrobenzenes which are polysubstituted by chlorine, with hydrogen, under the action of heat, in the presence of cations (Bi, Pb, Sn, Tl, Hg and Ag), in the liquid phase and at low pressure.
The process makes it possible selectively to obtain anilines which are chlorine-substituted in the meta-position.

REFERENCES:
patent: 3666813 (1972-05-01), Hindin et al.
patent: 3888929 (1975-06-01), Rivier
patent: 4085141 (1978-04-01), Wedemeyer et al.

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