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Title:
DERIVATIVE OF 3-CF3 CARBOXYLIC ACID AND HERBICIDE INCLUDING THE SAME
Document Type and Number:
Japanese Patent JPH08268954
Kind Code:
A
Abstract:

PURPOSE: To obtain a derivative of 3-CF3 carboxylic acid exhibiting an excellent herbicidal activity at an extremely low dose for a long range from the date of germination to vegetation period against perennial weeds such as Panicum crus-galli or the like growing in paddy field, and having extremely high safety to transplanted paddy rice.

CONSTITUTION: This derivative is expressed by the formula [R is H a (substituted) phenyl a lower alkyl, a lower alkenyl a lower alkynyl or a (substituted)aralkyl or the like, with the proviso that compounds in which-W-R is ethoxy or aniline or hydrazino are excluded], for example, benzyl 3-(trifluoromethyl)-4-methylpentate or the like. This derivative is obtained, for example, by adding 3-(trifluoromethyl)-4-methylpentanoic acid and calcium carbonate to dimethylformamide, then adding benzyl chloride under stirring at room temperature, adding ethyl acetate and water to the reaction solution after stirring for 4 hours, separating the organic layer, drying and concentrating it under reduced pressure.


Inventors:
GO ATSUSHI
ARAKI KOICHI
AOKI TAKAKO
YOKOYAMA MASATOSHI
INOUE KUMIKO
KITATSUME TOMOYA
Application Number:
JP7791695A
Publication Date:
October 15, 1996
Filing Date:
April 03, 1995
Export Citation:
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Assignee:
MITSUBISHI CHEM CORP
RHONE POULENC AGROCHIMIE
International Classes:
C07D295/18; A01N33/06; A01N33/16; A01N33/26; A01N37/02; A01N37/04; A01N37/18; A01N37/20; A01N37/28; A01N37/34; A01N37/50; A01N43/36; A01N43/60; A01N43/84; C07C53/21; C07C69/63; C07C233/05; C07C233/06; C07C233/07; C07C233/13; C07C233/15; C07C233/47; C07C239/20; C07C243/28; C07C251/66; C07C255/14; C07C255/60; C07C323/12; C07C327/22; (IPC1-7): C07C53/21; A01N33/06; A01N33/16; A01N33/26; A01N37/02; A01N37/04; A01N37/18; A01N37/20; A01N37/28; A01N37/34; A01N37/50; A01N43/36; A01N43/60; A01N43/84; C07C69/63; C07C233/05; C07C233/06; C07C233/07; C07C233/13; C07C233/15; C07C233/47; C07C239/20; C07C243/28; C07C251/66; C07C255/14; C07C255/60; C07C323/12; C07C327/22; C07D295/18
Attorney, Agent or Firm:
Yoshio Kawaguchi (2 outside)