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1. 发明公开

EP0652261A1 Dichroic azo dye, liquid crystal composition containing the same, and liquid crystal element using the composition 失效
标题翻译：分色含有该液晶组成物及液晶元件包含所述组合物的偶氮染料。
公开(公告)号：EP0652261A1
公开(公告)日：1995-05-10
申请号：EP94117359.3
申请日：1994-11-03
申请人： MITSUBISHI CHEMICAL CORPORATION
发明人： Kaneko, Masaharu, c/o Yokohama General Lab. , Ishio, Hisayo, c/o Yokohama General Laboratories
IPC分类号： C09B35/10 , C09B35/56 , C09K19/60
CPC分类号： C09B35/64 , C09B35/10 , C09B35/366 , C09B35/56 , C09K19/601
摘要： A dichroic dye represented by formula (I) or (II):

wherein R¹ and R² each represent a hydrogen atom or a nonionic substituent; X¹ and X¹ each represent

Z¹, Z², Z³, Z⁴, Z⁵, Z⁶, Z⁷, Z⁸, Z⁹, Z¹⁰, Z¹¹, and Z¹² each represent a hydrogen atom, a halogen atom, a methyl group or a methoxy group; Z¹ and Z², Z⁴ and Z⁵, Z⁷ and Z⁸, or Z¹⁰ and Z¹¹ may be connected to each other to form an aliphatic, aromatic or nitrogen-containing aromatic ring; and n and m each represent 0, 1 or 2

wherein R¹¹, R¹², R¹³, and R¹⁴ each represent a hydrogen atom, an alkyl group, an alkoxyalkyl group, a substituted or unsubstituted aralkyl group or a fluoroalkyl-substituted alkyl group, provided that a compound in which R¹¹ is a hydrogen atom and R¹² is a substituted or unsubstituted aralkyl group and a compound in which R¹³ is a hydrogen atom and R¹⁴ is a substituted or unsubstituted aralkyl group are excluded; R¹¹ and R¹², or R¹³ and R¹⁴ may be connected to each other to form a nitrogen-containing aliphatic ring; Z²¹, Z²², Z²³, Z²⁴, Z²⁵, Z²⁶, Z²⁷, Z²⁸, Z²⁹, Z³⁰, Z³¹, and Z³² each represent a hydrogen atom, a halogen atom, a methyl group or a methoxy group; Z²¹ and Z²², Z²⁴ and Z²⁵, Z²⁷ and Z²⁸, or Z³⁰ and Z³¹ may be connected to each other to form an aliphatic, aromatic or nitrogen-containing aromatic ring; R¹¹ and Z²³, R¹² and Z²¹, R¹³ and Z³², or R¹⁴ and Z³¹ may be connected to each other to form a nitrogen-containing aliphatic ring; and p and q each represent 0, 1 or 2, provided that p and q are not simultaneously 0.
The dichroic dyes (I) and (II) exhibit excellent dichroism and can be prepared from 2,2'-ditrifluoromethylbenzidine having no toxicity, such as mutagenicity.
摘要翻译：二色性染料由式（I）或（II）表示：其中，R <1>和R <2>分别表示氢原子或取代基非离子; X <1>和X <1>各自表示ž<1>，Z <2>，Z <3>，Z <4>，Z <5>，Z <6>，Z <7>，Z <8>，Z <9>，Z <1> <0>，Z <1> <1>，和Z <1> <2>分别表示氢原子，卤原子，甲基或甲氧基 ; ž<1>和Z <2>，Z <4>和Z <5>，Z <7>和Z <8>，或Z <1> <0>和Z <1> <1>也可以被连接到海誓山盟以形成脂族，芳族或芳族环的含氮; 和n和m各自表示0，1或2个其中，R <1> <1>，R <1> <2>，R <1> <3>，和R <1> <4>的每一个代表氢原子的烷基，在烷氧基烷基，提供了一种substituiertem奥德unsubstituiertem芳烷基或氟烷基substituiertem烷基，做了化合物，其中R <1> <1>是一个氢原子，R <1> <2> 是一个substituiertem奥德unsubstituiertem芳烷基和一化合物，其中R <1> <3>是一个氢原子，R <1> <4>由substituiertem奥德unsubstituiertem芳烷基被排除; [R <1> <1>和R <1> <2>，或R <1> <3>和R <1> <4>可以连接到海誓山盟以形成的含氮脂族环; ž<2> <1>，Z <2> <2>，Z <2> <3>，Z <2> <4>，Z <2> <5>，Z <2> <6>，Z < 2> <7>，Z <2> <8>，Z <2> <9>，Z <3> <0>，Z <3> <1>，和Z <3> <2>分别表示氢原子，卤原子，甲基或甲氧基; ž<2> <1>和Z <2> <2>，Z <2> <4>和Z <2> <5>，Z <2> <7>和Z <2> <8>，或Z <3> <0>和Z <3> <1>可以连接到海誓山盟以形成脂族，芳族或芳族环的含氮; [R <1> <1>和Z <2> <3>，R <1> <2>和Z <2> <1>，R <1> <3>和Z <3> <2>，或R <1> <4>和Z <3> <1>可以连接到海誓山盟以形成的含氮脂族环; p和q各自表示0，1或2，条件p和q是没有不同时为0的二色性染料（II）（I）和表现出优异的二色性，并且可以从2,2'- ditrifluoromethylbenzidine不具有毒性来制备，：例如诱变性。

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