申请人:Monsanto Company
公开号:EP0258201A1
公开(公告)日:1988-03-02
Compounds represented by the generic formula
wherein:
n is from 0 to 2 inclusive; X is selected from the group consisting of a halogen, hydroxy, lower alkoxy, lower alkenoxy, lower alkynoxy, haloalkoxy, haloalkenoxy, and alkylthio;
R1 and R2 are independently selected from fluorinated methyl and chlorofluorinated methyl radicals, provided that one of R1 and R2 must be fluorinated methyl;
R4 is selected from lower alkyl, hydrogen, cycloalkyl, aryl, and substituted aryl, aralkyl, cyano, amino, and alkylamino;
R3 is selected from hydroxy, alkoxy, alkylthio, alkylsulfonyl, lower alkyl, cycloalkyl, cycloalkylalkyl;
provided that when n is 0 or 2, R4 is not aryl, and further provided that when R3 is methyl and R4 is methyl, ethyl, or t-butyl, n is not 1 or 2, are useful as herbicides.
由通式表示的化合物
其中
n 为 0 至 2(包括 2); X 选自由卤素、羟基、低级烷氧基、低级烯氧基、低级炔氧基、卤代烷氧基、卤代烯氧基和烷硫基组成的组;
R1 和 R2 独立地选自氟化甲基和氯氟化甲基,但 R1 和 R2 中必须有一个是氟化甲基;
R4 选自低烷基、氢、环烷基、芳基和取代芳基、芳烷基、氰基、氨基和烷基氨基;
R3 选自羟基、烷氧基、烷硫基、烷基磺酰基、低级烷基、环烷基、环烷基烷基;
只要当 n 为 0 或 2 时,R4 不是芳基,而且当 R3 是甲基和 R4 是甲基、乙基或叔丁基时,n 不是 1 或 2,就可用作除草剂。