申请人:Nihon Tokushu Noyaku Seizo K.K.
公开号:US04828604A1
公开(公告)日:1989-05-09
Herbicidally active novel 2,5-dihydropyrroles of the formula ##STR1## wherein R.sup.1 represents a hydrogen atom or an alkyl group having 1 to 4 carbon atoms, R.sup.2 and R.sup.3 each represent an alkyl group having 1 to 4 carbon atoms or a haloalkyl group having 1 to 4 carbon atoms or together may form a C.sub.2 -C.sub.6 alkylene group which may be substituted by halogen, and R represents a hydroxy group, a mercapto group, a halogen atom, an amino group or a group of the formula --O--W in which W represents an alkylcarbonyl, a halogenoalkylcarbonyl, an alkoxycarbonyl or a halogenoalkoxycarbonyl group each having 1 to 4 carbon atoms in the alkyl group, an alkylsulfonyl or a halogenoalkylsulfonyl group each having 1 to 4 carbon atoms in the alkyl group or a di-C.sub.1 -C.sub.4 -alkylamino sulfonyl group.
具有除草活性的新型2,5-二氢吡咯的化学式为##STR1##其中R.sup.1代表氢原子或具有1到4个碳原子的烷基,R.sup.2和R.sup.3分别代表具有1到4个碳原子的烷基或具有1到4个碳原子的卤代烷基,或者可以共同形成一个C.sub.2-C.sub.6的烷基,该烷基可被卤素取代,而R代表羟基,巯基,卤素原子,氨基或公式--O--W的基团,其中W代表烷基羰基,卤代烷基羰基,烷氧羰基或卤代烷氧羰基,这些基团中的烷基均具有1到4个碳原子,烷基磺酰基或卤代烷基磺酰基,这些基团中的烷基均具有1到4个碳原子,或双C.sub.1-C.sub.4-烷基氨基磺酰基。