C - Chemistry – Metallurgy – 07 – D
Patent
C - Chemistry, Metallurgy
07
D
C07D 401/12 (2006.01) A01N 43/54 (2006.01) A01N 55/00 (2006.01) C07D 401/14 (2006.01) C07F 7/10 (2006.01)
Patent
CA 2066641
The present invention is to provide a novel picolinic acid derivative having the formula, (see Formula I) (wherein R is a hydrogen atom, an alkyl group or others, R1 and R2 are the same or different, and are an alkyl group, an alkoxy group or others, X is a cyano group, a phenoxy group or others, Y is an oxygen atom, a sulfur atom or others, and n is 0 or 1) or a salt thereof; a method for preparing the same; and a herbicidal composition containing the same as an active ingredient. The picolinic acid derivative or the salt thereof of the present invention achieves an excellent herbicidal effect at a low dosage, and is effective for controlling the growth of various weeds in a wide range. The picolinic acid derivative or the salt thereof of the present invention can be applied to a paddy field, a cultivated field, a non-agricultural land and the like as a herbicidal composition.
Hanai Ryo
Saito Yoshihiro
Tachikawa Shigehiko
Takabe Fumiaki
Tamaru Masatoshi
Ihara Chemical Industry Co. Ltd.
Kumiai Chemical Industry Co. Ltd.
Smart & Biggar
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