申请人:SHELL INTERNATIONALE RESEARCH
MAATSCHAPPIJ B.V.
公开号:EP0227157A1
公开(公告)日:1987-07-01
A herbicidal composition has as active ingredient, a halophenyl alkyl biuret of general formula I:-
wherein Hal represents a chlorine or, especially, a fluorine atom;
R₁ represents a hydrogen atom, a C1-6 alkoxy group, a C1-6 alkyl group;
R₂ represents a C1-6 alkyl group or a hydrogen atom;
R₃ represents a C1-6 alkyl group;
or R₁ and R₃ together represent a C2-4 alkylene group
and X represents a hydrogen or halogen atom; a C7-14 aralkyl group or C1-10 alkyl group, each of which may optionally be substituted by one or more halogen atoms, or by a C1-6 alkoxy, C1-6 alkoxyimino, C6-10 arylthio, C1-6 alkylthio, C7-14 aralkyloxy, C2-7 alkanoyloxy or C3-6 acetal group; or a C6-10 aryl, C1-6 alkoxy, C7-14 aralkyloxy, C2-6 alkenyl, (C1-6 alkyl)carbamoyl, C2-7 alkanoyl, or C7-11 aroyl group, or a C3-8 cycloalkyl group optionally substituted by one or more halogen atoms.
一种除草组合物的活性成分为通式 I 的卤代苯烷基缩二脲
其中 Hal 代表氯原子,尤其是氟原子;
R₁ 代表氢原子、C1-6 烷氧基、C1-6 烷基;
R₂ 代表 C1-6 烷基或氢原子;
R₃ 代表 C1-6 烷基;
或 R₁ 和 R₃ 共同代表 C2-4 亚烷基
X代表氢原子或卤素原子;C7-14芳烷基或C1-10烷基,其中每个可任选被一个或多个卤素原子取代,或被C1-6烷氧基、C1-6烷氧基亚氨基、C6-10芳硫基、C1-6烷硫基、C7-14芳氧基、C2-7烷酰氧基或C3-6缩醛基取代;或 C6-10 芳基、C1-6 烷氧基、C7-14 芳氧基、C2-6 烯基、(C1-6 烷基)氨基甲酰基、C2-7 烷酰基或 C7-11 芳基,或任选被一个或多个卤素原子取代的 C3-8 环烷基。