申请人:YAMADA CHEMICAL CO., LTD.
公开号:EP0242170A2
公开(公告)日:1987-10-21
Divinyl compounds represented by the formula (I)
wherein X¹ represents an alkyl group, an alkoxy group or a halogen atom; X² represents an alkyl group, an alkoxy group, a halogen atom or R³O-; X³ represents a halogen atom; R¹ represents a hydrogen atom, an alkyl group, an alkoxyalkyl group, a haloalkyl group, an alkenyl group, an aralkyl group, a cyclohexylmethyl group, a methylcyclohexyl group, a trimethylcyclohexyl group, a furfuryl group, a tetrahydrofurfuryl group or a tetrahydropyran-2-yl-methyl group; R² represents a cycloalkyl group, a phenyl group, a benzyl group, a phenyl or a benzyl group substituted by a chlorine atom, a bromine atom or an alkyl or alkoxy group both of which have not more that four carbon atoms or any one of R¹; R₃ represents an aryl group, a cycloalkyl group, an alkoxyalkyl group, an alkenyl group, a haloalkyl group or an aralkyl group; and m and n each represents 0, l, 2 or 3; wherein each X¹ or each X² is the same or different when m or n respectively is 2 or 3 and each X³ is the same or different; are chromogenic agents useful for recording materials such as pressure-and heat-sensitive papers.
由式(I)代表的二乙烯基化合物
其中 X¹ 代表烷基、烷氧基或卤原子;X² 代表烷基、烷氧基、卤原子或 R³O-;X³ 代表卤原子;R¹ 代表氢原子、烷基、烷氧基烷基、卤代烷基、烯基、芳基、环己基甲基、甲基环己基、三甲基环己基、糠基、四氢糠基或四氢吡喃-2-基甲基;R₃ 代表芳基、环烷基、烷氧基烷基、烯基、卤代烷基或芳烷基;其中,当 m 或 n 分别为 2 或 3 时,每个 X¹ 或每个 X² 相同或不同;当 m 或 n 分别为 2 或 3 时,每个 X³ 相同或不同。