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Patent Searching and Data


Title:
PRODUCTION OF 2-NITRO-5-(SUBSTITUTED ARYLOXY) BENZOHYDROXIMIC ACID DERIVATIVE
Document Type and Number:
Japanese Patent JPH0236164
Kind Code:
A
Abstract:

PURPOSE: To obtain the subject compound for herbicides by nitrating a readily available novel compound, such as O-methoxycarbonylmethyl-3-(2-chloro-4- trifluoromethylphenoxy)benzohydroximate.

CONSTITUTION: A novel compound expressed by formula I [Z is CX (X is H or halogen) or N; R1 and R3 are lower alkyl; R2 is H or lower alkyl] is nitrated to afford a 2-nitro-5-(substituted aryloxy)benzohydroximic acid derivative expressed by formula II [e.g., methyl O-methoxycarbonylmethyl 5-(2-chloro-4- trifluoromethylphenoxy)-2-nitrobenzohydroximate]. The compound expressed by formula I is obtained by, e.g., reacting a compound expressed by formula III with a sulfurating agent to provide a compound expressed by formula IV, reacting the resultant compound expressed by formula IV with hydroxylamine and then reacting the obtained compound expressed by formula V with a compound expressed by formula VI.


Inventors:
GO ATSUSHI
USUI YOSHIHIRO
Application Number:
JP27604988A
Publication Date:
February 06, 1990
Filing Date:
November 02, 1988
Export Citation:
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Assignee:
MITSUBISHI PETROCHEMICAL CO
International Classes:
C07D213/64; C07C259/10; (IPC1-7): C07C259/10; C07D213/64
Attorney, Agent or Firm:
Heiyoshi Odashima (1 person outside)