Method for the purification of dinitroanilines

Details Method for the purification of dinitroanilines Method for the purification of dinitroanilines

1998-07-10

1999-09-28

Burn, Brian M.

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

Organic compounds

Amino nitrogen containing

564438, 564441, C07C 8511

Patent

active

059591498

ABSTRACT:
A method for the purification of dinitroanilines having herbicidal activity by means of the known reactions of denitrosation using acid, and denitration in a neutral or basic environment in the presence of a phase-transfer catalyst, wherein:

REFERENCES:
patent: 4134917 (1979-01-01), Ross et al.
patent: 4226789 (1980-10-01), Eizember et al.
patent: 4391992 (1983-07-01), Daniels et al.
EP Search Report, Finchimica S.p.A., Jan. 14, 1999.

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