The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 26, 2003
Filed:
Aug. 08, 2000
Kureha Kagaku Kogyo K.K., Tokyo, JP;
Abstract
A herbicide containing as the active ingredient an N-(henylsulfonyl)picolinamide derivative represented by general formula (I) wherein X reprcsents a halogeno, a C alkyl, a C haloalkyl, a C alkoxy, a C haloalkoxy, a (C alkoxy)carbonyl, a [di(C alkyl)amino]sulfonyl, an [N—(C alkyl)-N—(C alkoxy)amino]sulfonyl, a (C alkylamino)sulfonyl, a C alkylthio, a C alkylsulfinyl, a C alkylsulfonyl, or nitro; n is an integer of 0 to 5; Y represets a halogeno, a C alkyl, a C haloalkyl, a C alkoxy, C haloalkoxy, a C alkylthio, a C haloalkylthio, amino, a C alkylamino, a di(C alkyl)amino, a (C alkoxy) C alkyl, a (C alkylthio) C alkyl, or nitro; and m is an integer of 0 to 4. This active ingredient is synthesized by condensing a substituted picolinic acid with a substituted benzenesulfonamide under dehydration, or by reacting the phenyl ester of a substituted picolinic acid with a substituted benzenesulfonamide in the presence of a basic compound.