申请人:James Robinson Limited
公开号:US06294112B1
公开(公告)日:2001-09-25
Red coloring hyperchromic compounds have the formula:
where R1 is H, NR2R3, OR4, SR4 or R7 wherein R2 and R3 are alkyl or carbocyclic groups or together with the nitrogen to which they are attached form a heterocyclic ring; R4 is the same as R1 or is alkyl, perhaloallyl, aryl or heteroaryl; R7 is alkyl, haloalkyl, alkylthio, aryl, arylthio, heteroaryl, halogen, nitrile, carboxylate, ester, nitro, or a carbocyclic or heterocyclic ring fused to faces f, gh, i, j or k; and R5 is a cyclic aminoaryl group, an indolinoaryl group, a tricyclic nitrogen heterocycle, or an unsaturated cyclic aminoaryl group.
红色染料具有以下化学式:其中R1为H、NR2R3、OR4、SR4或R7,其中R2和R3为烷基或碳环基团,或与它们所附着的氮形成杂环;R4与R1相同或为烷基、全氟烯丙基、芳基或杂芳基;R7为烷基、卤代烷基、烷硫基、芳基、芳硫基、杂芳基、卤素、腈、羧酸酯、硝基,或与面f、gh、i、j或k融合的碳环或杂环;而R5为环氨基芳基、吲哚芳基、三环氮杂环或不饱和环氨基芳基。