3-(3-ARYLOXYOHENYLO-1- (SUBSTITUTED METHYL)-S-TRIAZINE-2, 4,6-TRIONE DERIVATIVES, METHODS OF PREPARATION THEREOF, INTERMEDIATE COMPOUND, METHOD OR SUPPRESSING UNDESIRABLE PLANT SPECIES, AND HERBICIDAL COMPOSITION Russian patent published in 2000 - IPC

FIELD: chemical industry. SUBSTANCE: described are new compounds of general formula I: wherein Ar is residue of formula II: ; M is CX₄ or N; X,X₁,X₃ and X₄ each independently are hydrogen, nitro, cyano, C₁-C₄ alkyl, C₁-C₄ alkyl halide or C₁-C₄ alkoxy; X₂ is hydrogen, nitro, cyano, C₁-C₄ alkyl halide or S(O)_mR₅ wherein m is 0 or 1, and R₅ is C₁-C₄ alkyl; Y is hydrogen or halogen; Y¹ is hydrogen, halogen, nitro or cyano; A,A₁ and A₂ each are 0; R is hydrogen, C₁-C₄ alkyl, C₃-C₆ alkenyl, C₃-C₆ alkynyl or C₂-C₁₂ alkoxycarbonyl alkyl; R₁ is hydrogen; R₂ is hydrogen or C₁-C₄ is alkyl; hydrogen or R₃ is hydrogen; n is 0; V is C(O)R₆ wherein R₆ is OH, OR₁₀ or NR₁₁R₁₂; R_10/ is C₁-C₁₀ alkyl optionally substituted by halogen or tetrahydrofuryl; R₁₁ is hydrogen; R₁₂ is hydrogen or C₂-C₆ alkoxycarbonyl alkyl, compounds inhibit undesirable plant species. Also described are method of preparation thereof, intermediate, method of inhibiting undesirable plant species, and herbicidal composition. EFFECT: improved properties of the title compound and more efficient inhibition method. 10 cl, 23 dwg, 42 ex, 7 tbl