NEW HALOALKYLSULFONANILIDE DERIVATIVE, HERBICIDE, METHOD FOR USING THE SAME AND INTERMEDIATE THEREFOR

摘要

PROBLEM TO BE SOLVED: To provide a herbicide excellently safe for humans and animals, having high selectivity for crops, exhibiting high herbicidal effects with a low dose and having wide applicability, persistence of the effects and excellent selectivity between crops and weeds and especially excellent performances as a paddy herbicide. SOLUTION: A haloalkylsulfonanilide derivative is represented by general formula (I) [wherein, R1denotes a halo(1-6C)alkyl; R2and R5denote each an H, a (1-6C)alkyl, a (substituted) phenyl(1-6C)alkyl or the like; R3, R4, R6and R7denote each an H, a (1-6C)alkyl, a (3-6C)cycloalkyl, a halogen, a CN or the like; R3and R4may mutually be bound to form a 3- to a 7-membered ring; R6and R7may mutually be bound to form a 3- to a 7-membered ring; A denotes O or S; G denotes O, S or a CR8, R9äwherein, R8and R9denote each H, a (1-6C)alkyl or the like}; Q denotes a (1-6C)alkyl, a (substituted) (3-6C)cycloalkyl or the like; a and b denotes each 0 or 1; and X denotes H, a halogen, a (1-6C)alkyl, a (substituted) phenyl, a (substituted) heterocyclic ring or the like]. The herbicide comprises the haloalkylsulfonanilide derivative or its salts as an active ingredient. COPYRIGHT: (C)2006,JPO&NCIPI