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    • 9. 发明授权
    • Heterocyclic compound, ultraviolet absorbent and composition containing the same
    • 杂环化合物,紫外线吸收剂和含有它们的组合物
    • US08039532B2
    • 2011-10-18
    • US12669611
    • 2008-08-15
    • Naoyuki HanakiMasuji MotokiToshihiko Yawata
    • Naoyuki HanakiMasuji MotokiToshihiko Yawata
    • C08K5/45C07D495/04
    • A61Q17/04A61K8/49A61K8/4986C07D495/04C08K5/45
    • A compound represented by formula (I-1): wherein R21, R22, R23 and R24 each independently represent a hydrogen atom or a monovalent substituent, with the proviso that compounds, in which R21, R22, R23 and R24 each are an alkylthio group, are excluded; R21 and R22 and/or R23 and R24 each may bond to each other to form a ring, with the proviso that compounds, in which the formed ring is a dithiol ring or a dithiolane ring, are excluded; R25 and R26 each independently represent a hydrogen atom or a monovalent substituent; X21, X22, X23 and X24 each independently represent a hetero atom; compounds, wherein R21, R22, R23 and R24 each represent a cyan group; X21, X22, X23 and X24 each represent a sulfur atom; and R25 and R26 each represent a hydroxyl group or a hydrogen atom, are excluded; and compounds, wherein R21 and R23 each represent a hydrogen atom; R22 and R24 each represent an arylcarbonyl group; X21, X22, X23 and X24 each represent a sulfur atom; and R25 and R26 each represent a hydroxyl group, are excluded; and an ultraviolet absorbent, which has molecular weight of 10,000 or less and molar extinction coefficient at the maximum absorption wavelength of the ultraviolet absorbent of 80,000 or more.
    • 由式(I-1)表示的化合物:其中R 21,R 22,R 23和R 24各自独立地表示氢原子或一价取代基,条件是其中R 21,R 22,R 23和R 24各自为烷硫基 , 被排除在外; R 21和R 22和/或R 23和R 24各自可以彼此键合形成环,条件是排除其中形成的环是二硫醇环或二硫戊环的化合物; R 25和R 26各自独立地表示氢原子或一价取代基; X21,X22,X23和X24各自独立地表示杂原子; 化合物,其中R 21,R 22,R 23和R 24各自表示青色基团; X 21,X 22,X 23和X 24各自表示硫原子; R 25和R 26各自表示羟基或氢原子; 和其中R 21和R 23各自表示氢原子的化合物; R 22和R 24各自表示芳基羰基; X21,X22,X23和X24各自表示硫原子; R 25和R 26各自表示羟基; 和紫外线吸收剂,其分子量为10,000以下,紫外线吸收剂的最大吸收波长的摩尔消光系数为80,000以上。