2,5-dihydropyrroles

摘要

Herbicidally active novel 2,5-dihydropyrroles of the formula <IMAGE> wherein R1 represents a hydrogen atom or an alkyl group having 1 to 4 carbon atoms, R2 and R3 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 C2-C6 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-C1-C4-alkylamino sulfonyl group.