URACIL DERIVATIVES, AND THEIR PRODUCTION AND USE

摘要

URACIL DERIVATIVES, AND THEIR PRODUCTION AND USE A compound of the formula: wherein R1 is a trifluoromethyl group or a pentafluoroethyl group, R2 is a methyl group or an amino group and Q is either one of the formulas: , or (Q1) (Q2) (Q3) wherein R3 is a hydrogen atom or a methyl group, R4, R5 and R6 are each a C1-C7 alkyl group, a C3-C7 alkenyl group, a C3-C7 alkynyl group, a halo(C1-C6)alkyl group, a halo (C3-C6)alkenyl group or a C1-C4 alkoxy(C1-C3)alkyl group, X is a hydrogen atom or a fluorine atom and Y is an oxygen atom or a sulfur atom, with the proviso that when Q is Q3, R2 represents a methyl group, which is useful as a herbicide.