TRIFLUOROMETHANESULFONYLANILIDE DERIVATIVE, ITS PRODUCTION AND HERBICIDE WITH THE SAME AS ACTIVE INGREDIENT

摘要

PROBLEM TO BE SOLVED: To obtain the subject new compound having a wide spectrum of herbicidal activity at low doses, exhibiting significant effect on gramineous weeds among others and having high safety to mammals as well. SOLUTION: This new compound is a trifluoromethanesulfonylanilide derivative of formula I (R is an alkoxyalkyl), e.g. 2-[(4,6-dimethoxypyrimidin-2-yl) hydroxymethyl]-6-methoxymethyltrifluoromethanesulfonylanilide. The compound of formula I is obtained by reaction of a trifluoromethanesulfonyl halide or trifluoromethanesulfonic acid anhydride with a 2-substituted aniline derivative of formula II followed by converting the product to the corresponding salt as desired. It is preferable that, in a herbicide with the compound of formula I as active ingredient, when it is to be used directly as in the form of powder or granules the herbicide is applied at 0.1 g to 5 kg, pref. 1 g to 1 kg, per 10 are in terms of the active ingredient.