申请人:OTSUKA KAGAKU KABUSHIKI KAISHA
公开号:EP0470264A1
公开(公告)日:1992-02-12
A photochromic compound of general formula (Ia), wherein R1 represents C1 to C20 alkyl or aralkyl; R2 to R5 each represents hydrogen, C1 to C6 alkyl, aryl, aralkyl, C1 to C5 alkoxy, halogeno, cyano, trichloromethyl, trifluoromethyl or nitro; R6 and R7 each represents hydrogen, C1-C6 alkyl, aryl, aralkyl, halogeno, cyano or nitro; and X represents oxygen or sulfur; a homopolymer of said compound; and a copolymer thereof with a vinylic compound of the general formula: CH2 = CYZ, wherein Y represents H or CH3, and Z represents carboxyl, alkoxycarbonyl, cyano, carbamoyl, N,N-dimethylcarbamoyl, acetoxy, phenyl or methylphenyl.
通式(Ia)的光致变色化合物,其中R1代表C1~C20烷基或芳烷基;R2~R5各自代表氢、C1~C6烷基、芳基、芳烷基、C1~C5烷氧基、卤代、氰基、三氯甲基、三氟甲基或硝基;R6 和 R7 分别代表氢、C1-C6 烷基、芳基、芳烷基、卤代物、氰基或硝基;X 代表氧或硫;所述化合物的均聚物;以及其与通式如下的乙烯基化合物的共聚物:CH2 = CYZ,其中 Y 代表 H 或 CH3,Z 代表羧基、烷氧基羰基、氰基、氨基甲酰基、N,N-二甲基氨基甲酰基、乙酰氧基、苯基或甲基苯基。