N-PYRIDINYL1,2,4-TRIAZOLO1,5-c-PYRIMIDINE-2-SULFONAMIDE COMPOUND, HERBICIDAL AGENT CONTAINING SAID COMPOUND AND METHOD OF CONTROLLING UNDESIRABLE VEGETATION

摘要

n - 3 | 1,2,4 triazolo | | 1,5 - c | pyrimidine - 2 - sulfonamide compound of general formula, in which r is a group ch.sub.2.n.cf.sub.3.n.or alkylovou group with 1 to 3 carbon atoms or monosubstituovanou by fluorine, chlorine or methoxyskupinou, y and z independently represent a hydrogen atom, fluorine, chlorine, bromine or iodine.methoxyskupinu, ethoxyskupinu, ethylovou group or group; or mono substituted by fluorine way, means hydrogen atom, group cor ', we've got miller' or group conr.sub.2.n.'' ', a and b independently represent a hydrogen atom, a group r', or ', och.sub.2.n.ch.sub.2.n.cl, group och.sub.2.n.ch.sub.2.n.och.sub.3.n. with (about).sub.n.n.r ', the atom of fluorine, chlorine, bromine or iodine, group cn, mo.sub.2.n., c.sub.6.n.h.sub.5.n., we've got miller "or conr.sub.2.n."that is one of the substituentu016f a and b is hydrogen atom, d is hydrogen atom, fluorine, chlorine, bromine or iodine, or a group of ch.sub.3.n. cf.sub.3.n. groupn means the number 0, 1 or 2, and