| 摘要 |
Herbicidal compounds having structure (a) are disclosed, in which: X and Y are independently selected from hydrogen, halogen, and alkyl; R is alkyl or amino; R<1> is hydrogen, alkyl, cyanoalkylsulfonyl, acyl, acyloxyacyl, alkoxycarbonyl, or represents the negative charge of the anion of a salt; R<2> is: (1) alkyl, cyanoalkyl, cyanoalkoxycarbonylalkyl, alkenoxycarbonylalkyl, alkynoxycarbonylalkyl, arylalkyl, aryloxyalkyl, arylalkoxycarbonylalkyl, heterocyclyl, amino, aminocarbonylalkyl; (2) -W-R<3> in which W is alkyl, and R<3> is aminocarbonyl, alkoxycarbonyl, hydroxycarbonyl, arylalkylthiocarbonyl, nitro, alkylthiocarbonyl, or heterocyclylalkoxycarbonyl; (3) -CH(CN)R<4> in which R<4> is hydrogen, alkyl, arylalkyl, or arylhaloalkyl; or (4) -C(CN)=CHR<5>; in which R<5> is aryl or heterocyclyl; with the proviso that an amino group may be substituted with alkyl, cyanoalkyl, alkoxy, alkoxycarbonylalkyl, acyloxyacyl, aryl, arylalkyl, aryloxyalkyl, or heterocyclylalkyl; aryl is selected from phenyl, furanyl, and thienyl, each optionally substituted with halogen; and heterocyclyl is selected from 2,3-dihydro-2,2-dimethylbenzofuran-7-yl and 1,3-dioxolan-2-yl. The sodium, potassium or 1-8 carbon amine salts of the compounds are also herbicidal. |
