DERIVATIVES OF TETRAHYDROBENZOTHIAZOLE AND HERBICIDAL COMPOSITIONS CONTAINING THE SAME AS AN ACTIVE INGREDIENT

摘要

Disclosed is a derivative of tetrahydrobenzothiazole represented by the general formula (I): < IMG > (I) wherein R1 represents one of the following groups: (II) < IMG > wherein R2 represents a hydrogen atom, methyl group, acetyl group, benzoyl group, phenoxycarbonyl group or 3pyridylcarbonyl group and R3 represents a hydrogen atom, hydroxy group, methoxy group or acetoxy group, (III) and < IMG > < IMG > ( IV), and a herbicidal composition comprising as active ingredient at least one of the derivatives of tetrahydrobenzothiazole.