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公开(公告)号:US3956283A
公开(公告)日:1976-05-11
申请号:US470523
申请日:1974-05-16
申请人: Fritz Fleck
发明人: Fritz Fleck
IPC分类号: C09B57/00 , C11D3/42 , D21H21/28 , D21H21/30 , C07D403/10
摘要: Disclosed are compounds of formula I, ##SPC1##in which R.sub.1 signifies hydrogen, fluorine, bromine, chlorine, C.sub.1-6 alkyl, C.sub.1-6 alkoxy or --SO.sub.3 M,R.sub.2 signifies cyano or --CONR.sub.3 R.sub.4,in which either R.sub.3 and R.sub.4, independently, each signify hydrogen, C.sub.1-6 alkyl or C.sub.2-6 hydroxyalkyl,Or R.sub.3 and R.sub.4, together with the nitrogen atom to which they are attached, signify a pyrrolidino, piperidino or morpholino ring, andM signifies hydrogen or a non-chromophoric cation,Their production and use as optical brightening agents, particularly for cellulosic substrates such as paper and cotton.
摘要翻译: 公开了式I化合物,其中R 1表示氢,氟,溴,氯,C 1-6烷基,C 1-6烷氧基或-SO 3 M,R 2表示氰基或-CONR 3 R 4,其中R 3和R 4各自独立地表示氢, C 1-6烷基或C 2-6羟烷基,OR 3和R 4与它们所连接的氮原子一起表示吡咯烷子基,哌啶子基或吗啉代环,M表示氢或非发色阳离子。它们的生产和使用 作为光学增亮剂,特别是作为纸和棉的纤维基材。