Fluorovinloxyacetamides, process for preparing same and herbicidal composition comprising same

摘要

Herbicidal fluorovinyloxyacetamide compounds of formula (I) are useful for protecting crops from weeds:wherein:R1 is a phenyl group optionally having one or more substituents selected from the group consisting of C1-6 alkyl, halogen-substituted C1-6 alkyl, C1-6 alkoxy and halogen;R2 is a C1-6 alkyl; orR1 and R2 together with the nitrogen atom to which they are bound form a 5-, 6- or 7-membered nitrogen heterocycle optionally having one or more ring oxygen atoms, double bonds and C1-6 alkyl substituents;R3 is a phenyl or thiophen-2-yl group optionally having one or more substituents selected from the group consisting of C1-6 alkyl, halogen-substituted C1-6 alkyl, C1-6 alkoxy, methylenedioxy and halogen; andR4is a perfluoro C1-6 alkyl group.