Uracil compounds and use thereof

Abstract

The invention provides an uracil compound represented by the general formula: wherein W represents oxygen or sulfur; R1 represents C1- to C3-alkyl or C1- to C3-haloalkyl; R2 represents C1- to C3-alkyl or C1- to C3-haloalkyl; R3 represents hydrogen, C1- to C3-alkyl, phenyl, C1- to C3-haloalkyl or cyano; R4 represents hydrogen or C1- to C3-alkyl; R5 represents C1- to C6-alkyl, C1- to C6-haloalkyl, C3- to C6-alkenyl, C3- to C6-haloalkenyl, C3- to C6-alkynyl or C3- to C6-haloalkynyl; X1 represents halogen; X2 represents hydrogen or halogen; X3 and X4 are independent with each other and each represents hydrogen, halogen, C1- to C6-alkyl, C1- to C6-haloalkyl, C2- to C6-alkenyl, C2- to C6-haloalkenyl, C3- to C6-alkynyl, C3- to C6-haloalkynyl, C1- to C6-alkoxy-C1- to C6-alkyl, C1- to C6-alkoxy, C1- to C6-haloalkoxy or cyano; and n represents an integer of 1 to 4. The uracil compound has an excellent herbicidal effect against various weeds and therefore it is useful as an active ingredient for a herbicide.

Dependencies are inferred from the claim text.