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    • 6. 发明授权
    • Heteroaryl substituted hydroxyphenyltriazine uv-absorbers
    • 杂芳基取代的羟基苯基三嗪紫外线吸收剂
    • US06835329B2
    • 2004-12-28
    • US10398040
    • 2003-03-31
    • Dieter ReinehrHanspeter SauterRudolf Zink
    • Dieter ReinehrHanspeter SauterRudolf Zink
    • C07D25124
    • C07D403/10A61K8/4966A61Q17/04C07D413/10C08K5/3492
    • The present invention provides compounds having the formula (1) in which each of the radicals R1, R2, R3 and R4, independently, represent hydrogen, hydroxy, halogen, C1-C20-alkyl, C1-C20-alkoxy, CN or COOR5, in which R5 is C1-C20-alkyl and Z represents a heterocyclic residue selected from the 2H-benzo[1,2-d]triazol-2-yl, 2H-naphtho[1,2-d]triazol-2-yl, benzimidazol-2-yl, benzoxazol-2-yl and benzofuran-2-yl moieties, optionally substituted by C1-C4-alkyl, C1-C4-alkoxy, halogen or NHCOC1-C4-alkyl, a process for their preparation, new intermediate benzoxazinones useful for their preparation and use of the compounds of formula (1) as UV-absorbers which have improved absorption spectrum characteristics, superior resistance to exposure to UV light and excellent thermal stability, relative to known triphenyltriazine compounds.
    • 本发明提供具有式(1)的化合物,其中每个基团R 1,R 2,R 3和R 4独立地代表氢,羟基,卤素,C 1 -C 20 - 烷基,C 1 -C 20 - 烷氧基,CN或COOR 5, 其中R 5是C 1 -C 20 - 烷基,Z代表选自2H-苯并[1,2-d]三唑-2-基,2H-萘并[1,2-d]三唑-2-基的杂环残基, 苯并恶唑-2-基和苯并呋喃-2-基部分,任选被C 1 -C 4 - 烷基,C 1 -C 4 - 烷氧基,卤素或NHCOC 1 -C 4 - 烷基取代,其制备方法,新中间体 苯并恶嗪酮可用于制备和使用式(1)化合物作为UV吸收剂,其相对于已知的三苯基三嗪化合物具有改进的吸收光谱特征,优异的耐紫外线性和耐热稳定性。