Process for the selective preparation of meta-chloroanilines

Details Process for the selective preparation of meta-chloroanilines Process for the selective preparation of meta-chloroanilines

1982-12-30

1985-07-30

Hines, Robert V.

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

Organic compounds

Amino nitrogen containing

564305, 564309, 564315, 564330, 564417, C07C 8524

Patent

active

045323500

ABSTRACT:
Process for the selective preparation of metachloroanilines.
It is carried out by the hydrodechlorination of polychloroanilines or polychloronitrobenzenes with hydrogen, in the liquid phase and in an acid medium, under the action of heat and under pressure, in the presence of a noble metal used in association with a heavy metal.
These meta-chloroanilines are intermediates especially for active plant-protection substances.

REFERENCES:
patent: 3888929 (1975-06-01), Rivier
patent: 4085141 (1978-04-01), Wedemeyer et al.
patent: 4206147 (1980-06-01), Daumas et al.
patent: 4206148 (1980-06-01), Biola et al.
patent: 4340759 (1982-07-01), Cordier

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