Process for the production of 2,4-dinitroanilines

Details Process for the production of 2,4-dinitroanilines Process for the production of 2,4-dinitroanilines

1981-09-14

1983-04-26

Doll, John

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

Organic compounds

Amino nitrogen containing

564412, 564441, C07C 8504

Patent

active

043814093

ABSTRACT:
A method for the preparation of 2,4-dinitroaniline from 1-chloro-2,4-dinitrobenzene comprising adding ammonia to melted 1-chloro-2,4-dinitrobenzene in such dosages that the temperature of the mixture does not exceed 120.degree. C. and that the pressure does not exceed 3 bar. 6-halo-2,4-dinitroaniline may be produced from the so formed 2,4-dinitroaniline by neutralizing the suspension containing the 2,4-dinitroaniline with acid to give a pH of from the 6-halo-2,4-dinitroaniline. The 6-halo 2,4-dinitroaniline is useful in the preparation of dyestuffs.

REFERENCES:
patent: 2491481 (1949-12-01), Dickey
patent: 4102927 (1978-07-01), Volkwein et al.

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