Substituted benzophenoxazines, method for preparing same and use thereof in electrochromic recording systems
申请人:THE HILTON - DAVIS CHEMICAL COMPANY
公开号:EP0170967A1
公开(公告)日:1986-02-12
5-[N-(RCO)-N-R1-amino] or (RCOO)-9-(N-R2-N-R3-amino)-12-(RCO)benzo[a]phenoxazines useful as color formers, particularly in electrochromic recording systems, are prepared by the interaction of the corresponding 5-(N-R1-amino)-9-(N-R2-N-R3-amino)benzo[a]phenoxazinium halide or 9-(N-R2-N-R3-amino)benzo[a]phenoxazin-5-one with a reducing agent to obtain the corresponding leuco compound and subsequently interacting the leuco compound with at least two molecular proportions of an acylating agent.
5-[N-(RCO)-N-R1-氨基]或(RCOO)-9-(N-R2-N-R3-氨基)-12-(RCO)苯并[a]吩噁嗪可用作颜色形成剂,特别是在电致变色记录系统中、通过相应的 5-(N-R1-氨基)-9-(N-R2-N-R3-氨基)苯并[a]吩噁嗪卤化物或 9-(N-R2-N-R3-氨基)苯并[a]吩噁嗪-5-酮与还原剂作用得到相应的白基化合物,然后再将该白基化合物与至少两个分子比例的酰化剂作用而制备。