3-(3-aryloxyphenyl)-1-(substituted methyl)-s-triazine-2,4,6-oxo or thiotrione herbicide

PROBLEM TO BE SOLVED: To obtain the subject compound effective for controlling an unwanted plant species when applied for leaves, stems or seeds and other reproductive organs of plant, used in soil or water. SOLUTION: This herbicide is a 3-(3-aryloxyphenyl)-1-(substituted methyl)-s- triazine-2,4,6-oxo expressed by formula I [Ar is a group expressed by formula II, etc.; M is CX 4 or N; X, X 1 to X 4 , Y 1 ere each independently H, a halogen, nitro, etc.; (m) is 0, 1, 2; Y is H or a halogen; A, A 1 , A 2 are each independently O or S; R is H, a 1-4C alkyl, a 2-6C alkoxy, etc.; R 1 is H, a 1-4C alkoxy, etc.; R 2 and R 3 are each H, a 1-4C alkyl, etc.) e.g. 3-{2-bromo-5-[(2-chloro-α, α, α, 6-tetrafluoro-p-tolyl)oxy]phenyl} tetrahydro-α, 5-dimethyl-2, 4, 6-trioxo-s- triazine-1(2H)-acetate is cited. COPYRIGHT: (C)1997,JPO