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    • 34. 发明申请
    • METHOD OF QUENCHING ELECTRONIC EXCITATION OF CHROMOPHORE-CONTAINING ORGANIC MOLECULES IN PHTOACTIVE COMPOSITIONS
    • 电化学组合物中包含有机分子的电子激发的方法
    • US20090291054A1
    • 2009-11-26
    • US12432542
    • 2009-04-29
    • Craig A. BondaAnna Pavlovic
    • Craig A. BondaAnna Pavlovic
    • A61K8/40A61Q17/04
    • A61K8/40A61K2800/52A61Q17/04
    • The photostabilizing electronic excited state energy—particularly singlet state energy from a UV-absorbing molecule has been found to be readily transferred to (accepted by) α-cyanodiphenylacrylate compounds of formulas (I) and (V) having an alkoxy radical preferably in the four (para) position (hereinafter methoxycrylenes) on one or both of the phenyl rings: wherein at least one of R1 and R2 is a straight or branched chain C1-C12 alkoxy radical, preferably C1-C8, more preferably C1-C4, and most preferably methoxy, and any non-alkoxy radical R1 or R2 is hydrogen; and R3 is a straight or branched chain C1-C24 alkyl radical, preferably C12-C24, more preferably C20; wherein A and B are the same or different and are selected from the group consisting of oxygen, amino and sulfur; R1 and R3 are the same or different and are selected from the group consisting of C1-C30 alkyl, C2-C30 alkylene, C2-C30 alkyne, C3-C8 cycloalkyl, C1-C30 substituted alkylene, C2-C30 substituted alkyne, aryl, substituted aryl, heteroaryl, heterocycloalkyl, substituted heteroaryl and substituted heterocycloalkyl; R2 is selected from the group consisting of C1-C30 alkyl, C2-C30 alkylene, C2-C30 alkyne, C3-C8 cycloalkyl, C1-C30 substituted alkyl, C3-C8 substituted cycloalkyl, C1-C30 substituted alkylene, C2-C30 substituted alkyne; R4, R5, R6 and R7 are the same or different and are selected from the group consisting of C1-C30 alkoxy straight chin on branched and a, b, c and d are each either 0 or 1, and a, b, c and d add up to 1, 2, 3, or 4.
    • 已经发现光稳定化电子激发态能量 - 特别是来自紫外线吸收分子的单态能量已经被发现容易地转移到具有烷氧基的式(I)和(V)的α-氰基二苯基丙烯酸酯化合物(接受) (对位)位置(以下为甲氧基);其中R 1和R 2中的至少一个为直链或支链C 1 -C 12烷氧基,优选C 1 -C 8,更优选C 1 -C 4,最优选 优选甲氧基,任何非烷氧基R 1或R 2为氢; 并且R 3是直链或支链C 1 -C 24烷基,优选C 12 -C 24,更优选C 20; 其中A和B相同或不同,并且选自氧,氨基和硫; R 1和R 3相同或不同,选自C 1 -C 30烷基,C 2 -C 30亚烷基,C 2 -C 30炔基,C 3 -C 8环烷基,C 1 -C 30取代的亚烷基,C 2 -C 30取代的炔基,芳基, 取代的芳基,杂芳基,杂环烷基,取代的杂芳基和取代的杂环烷基; R 2选自C 1 -C 30烷基,C 2 -C 30亚烷基,C 2 -C 30炔基,C 3 -C 8环烷基,C 1 -C 30取代的烷基,C 3 -C 8取代的环烷基,C 1 -C 30取代的亚烷基,C 2 -C 30取代的 炔烃 R4,R5,R6和R7相同或不同,选自支链上的C1-C30烷氧基直链,a,b,c和d各自为0或1,a,b,c和 d加起来1,2,3或4。