5-Aryl isoxazole derivatives of general formula (I):
wherein:
Ar represents phenyl optionally substituted substituted by one or more groups R² or pyridyl substituted by one or more groups R²;
R represents :-
hydrogen, -CO₂R³, -COR⁴, cyano, halogen, alkyl or haloalkyl;
R¹ represents :-
alkyl, haloalkyl or cycloalkyl;
R² represents :-
a halogen atom, R⁴, nitro, -CO₂R³, -OR⁴, -S(O)mR⁴, -S(O)mR⁵, -O-(CH₂)p-OR⁴ or an alkyl group substituted by -OR⁴;
R³ and R⁴, which may be the same or different, each represent alkyl or haloalkyl;
R⁵ represents optionally substituted phenyl;
p represents an integer from 1 to 3; and
m represents zero, 1 or 2;
the herbicidal properties of these derivatives and their application to crop protection is described.
通式(I)的 5-芳基
异噁唑衍
生物:
其中
Ar 代表任选被一个或多个基团 R² 取代的苯基,或被一个或多个基团 R² 取代的
吡啶基;
R 代表
氢、-CO₂R³、-COR⁴、
氰基、卤素、烷基或卤代烷基;
R¹ 代表:-烷基、卤代烷基或卤代烷基
烷基、卤代烷基或环烷基;
R² 代表:-
卤素原子、R⁴、硝基、-CO₂R³、-OR⁴、-S(O)mR⁴、-S(O)mR⁵、-O-(CH₂)p-OR⁴或被-OR⁴取代的烷基;
R³ 和 R⁴ 可以相同或不同,各自代表烷基或卤代烷基;
R⁵ 代表任选取代的苯基;
p 代表 1 至 3 的整数;以及
m 代表零、1 或 2;
描述了这些衍
生物的除草特性及其在作物保护中的应用。