Benzoxazole compounds, process for producing the same and herbicides

摘要

The present invention relates to benzoxazole compounds represented by the following formula (I): wherein R¹ to R⁴ may be the same or different from each other, and each represent a hydrogen atom, alkyl group having 1 to 6 carbon atoms, alkoxy group having 1 to 4 carbon atoms, haloalkyl group having 1 to 4 carbon atoms, haloalkoxy group having 1 to 4 carbon atoms, halogen atom, nitro group, cyano group, R¹²S(O)_n, alkoxycarbonyl group having 1 to 4 carbon atoms, amino group, -NHCOR¹¹ or carbonyl group, where R¹¹ and R¹² each represent an alkyl group having 1 to 6 carbon atoms, and n is an integer of 0 to 2, A represents a single bond, CHR⁵-Y, CR⁵-CR⁶, CR⁵R⁷-CHR⁶ or CHR⁵, where R⁵ represents a hydrogen atom, hydroxyl group, halogen atom or alkyl group, R⁶ and R⁷ each represent a hydrogen atom, hydroxyl group, alkyl group, halogen atom or substituted sulfonyloxy group, Y represents O, S or NH, and W represents a substituted or unsubstituted benzene ring or hetero ring, and processes for preparing the same.