PHENOXY-PHENOXY-ALKANOYL-THIOAMIDES AS HERBICIDES

摘要

Phenoxyphenoxyalkanoylthioamides of the formula I wherein X1 is chlorine or trifluoromethyl, X2 is chlorine or nitro, R1 is C1-C4 alkyl, and R2 is the amino group or an amidino group wherein each of R3 and R4 independently is hydrogen or C1-C4 alkyl or taken together they form a C4-C5 alkylene chain, have herbicidal and growth regulating properties. They are suitable for selectively controlling weeds in crops of useful plants, especially in cereals and rice.