申请人:SPECTRA GROUP LIMITED INC
公开号:EP0515133A2
公开(公告)日:1992-11-25
A novel class of compounds is described, certain members of which are useful as fluorescers or as photoinitiators. The compounds have the general structures (I) (II) (III) or (IV):
where A is selected from hydrogen,
alkyl, aryl, alkenyl, alkynyl, dichlorotriazinylamino, and electron withdrawing groups (EWG) which are stronger electron withdrawing groups than a phenyl group or a halogen-substituted or a carboxyl-substituted phenyl group; X is oxygen, sulfur, selenium, tellurium or >C=0 and preferably oxygen; Z is a counter ion; R is hydrogen, alkyl, aryl or aralkyl; R¹¹-R¹⁶ are the same or different and represent a hydrogen atom or a halogen atom; and R¹⁷ is a hydrogen atom or a group of the formula -OR'.
The compounds of formula (I) and (II) may be substituted or unsubstituted at the 2, 4, 5 and 7 positions. When the 2, 4, 5 and 7 positions are unsubstituted, A cannot be hydrogen or methyl.
本文描述了一类新型化合物,其中某些成分可用作荧光剂或光引发剂。这些化合物的一般结构为 (I) (II) (III) 或 (IV):
其中 A 选自氢
烷基、芳基、烯基、炔基、二氯三嗪基氨基,以及比苯基或卤素取代的苯基或羧基取代的苯基具有更强电子俘获性的电子俘获基(EWG);X 是氧、硫、硒、碲或 >C=0,优选氧;Z 是反离子;R 是氢、烷基、芳基或芳烷基;R¹¹-R¹⁶ 相同或不同,代表氢原子或卤素原子;R¹⁷ 是氢原子或式 -OR' 的基团。
式(I)和(II)化合物的 2、4、5 和 7 位可被取代或未被取代。当 2、4、5 和 7 位未被取代时,A 不能是氢或甲基。