SUBSTITUTED BENZOYL CYCLIC ENONE DERIVATIVE, HERBICIDE CONTAING THE SAME AS ACTIVE INGREDIENT AND PLANT GROWTH CONTROLLING METHOD

摘要

PURPOSE: To provide the subject new compound giving broad herbicidal activities, and useful as an active ingredient for the selective herbicides for paddy fields with safety and/or environmental tolerance for crop. ;CONSTITUTION: A compound of formula I {Ar is of formula VII or formula VIII [R⁵ is alkyl, alkoxy, alkylcarbonyl, alkoxycarbonyl, NR¹²R¹³, O_nS (O)_n, R¹¹, halogen, NR¹⁴SO₂R¹¹, CN or NO₂ (R¹²-R¹⁴ are each H or alkyl; R¹¹ is alkyl; (n) is 0 or 1; (n)' is 0-2); R⁶ and R⁷ are each H or R⁵]; R¹⁶-R¹⁹ are each O, S or 1-4C alkylene; Q is O or S; R¹-R⁴, R⁹ and R¹⁰ are each H, alkyl or COOR¹⁵ (R¹⁵ is H or alkyl); R⁸ is alkyl, cycloalkyl, phenyl, benzyl CN or of formula IX ((m) is 1-3; R²⁰ and R²¹ are each H or alkyl); (l) is 0-2}. This compound can be obtained through the synthesis route given by the reaction formulas, having remarkable herbicidal activity against the annual and perennial paddy weeds, while being low in chemical injury in paddy rice.;COPYRIGHT: (C)1994,JPO&Japio