Process for producing chlorophenylhydrazine compounds

Details Process for producing chlorophenylhydrazine compounds Process for producing chlorophenylhydrazine compounds

1986-06-26

1991-08-20

Raymond, Richard L.

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

Organic compounds

Amino nitrogen containing

544 5, 544312, 544385, 546219, 548123, 548183, 548210, 548227, 548311, 562439, C07C24102

Patent

active

050416677

ABSTRACT:
A process for producing a chlorohenylhydrazine compound is disclosed, which comprises chlorinating at least one hydrogen atom on the phenyl nucleus in a beta-imidated phenylhydrazine compound and subsequently hydrolyzing the chlorinated compound. Said chlorophenylhydrazine compound is useful as starting material for the production of herbicide, insecticide and photographic coupler is produced in high yield and low cost.

REFERENCES:
patent: 1960275 (1934-05-01), Miller
patent: 2973386 (1961-02-01), Weldon
patent: 4420486 (1983-12-01), Ohyama et al.
patent: 4447647 (1984-05-01), Werner et al.
McOmie; "Protective Groups in Organic Chemistry", pp. 75-79 (1973).
Houben-Weyl, "Methoden der Organischen Chemie", vol. 5/3, Halogen Verbindungen Fluoro and Chlor, pp. 873-874 and 884 (1962).

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