HYDROXYPHENYLTRIAZINES Russian patent published in 1999 - IPC

FIELD: organic chemistry. SUBSTANCE: invention relates to compounds of the formula (I) where R₁ means hydrogen or methyl; m = 1 or 2; when m = 1 then R₂ means C₁-C₁₈-alkyl substituted with halogen, hydroxyl, C₁-C₁₂-alkoxyl, -COOH, -COO-(C₁-C₁₂-alkyl) or -CN-group, C₁-C₁₂-alkyl, C₂-C₆-alkenyl, C₅-C₈-cycloalkyl, C₆-C₂₀-alkylcycloalkyl, C₇-C₁₁-phenylalkyl, -CH₂CO-phenyl or with a group -CO-R₃ where R₃ means C₁-C₁₈-alkyl, cyclohexyl or phenyl; or when m = 2 then a residue -CO-R₄-CO or -CO-NH-R₅-NH- where R₄ means C₂-C₁₀-alkylene, phenylene, diphenylene or C₂-C₆-alkenylene and R₅ means C₄-C₁₀-alkylene, phenylene, tolylene, diphenylmethane or a group of the formula (A) . Proposed compounds can be used as light-protective agents for organic materials exhibiting high thermic and photochemical stability. EFFECT: improved method of synthesis, improved properties of compounds. 3 cl, 7 tbl, 17 ex