发明授权
- 专利标题： Fluorine-containing optically active compound, process for preparing the same and liquid crystal mixture and liquid crystal element comprising the same
- 专利标题（中）： 含氟光学活性化合物，其制备方法和液晶混合物以及含有它们的液晶元件
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申请号： US388424申请日： 1995-02-14
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公开(公告)号： US5779934A公开(公告)日： 1998-07-14
- 发明人: Takayuki Higashii , Yukari Fujimoto , Tsutomu Matsumoto , Masayoshi Minai , Chizu Sekine , Kyoko Endo , Koichi Fujisawa
- 申请人： Takayuki Higashii , Yukari Fujimoto , Tsutomu Matsumoto , Masayoshi Minai , Chizu Sekine , Kyoko Endo , Koichi Fujisawa
- 申请人地址： JPX Osaka
- 专利权人： Sumitomo Chemical Company, Limited
- 当前专利权人： Sumitomo Chemical Company, Limited
- 当前专利权人地址： JPX Osaka
- 优先权： JPX6-017413 19940214
- 主分类号： C07D239/26
- IPC分类号： C07D239/26 ; C07D239/34 ; C09K19/04 ; C09K19/34 ; C07D239/00
摘要：
A fluorine-containing optically active compound represented by the formula (1): ##STR1## wherein R.sub.1 is a saturated or unsaturated C.sub.3 -C.sub.20 alkyl group or a saturated or unsaturated C.sub.3 -C.sub.20 alkoxyalkyl group; A.sup.1, A.sup.2 and A.sup.3 independently represent one of the following groups: ##STR2## provided that, when A.sup.1 is a condensed ring group, a sum of p and q is 0 or 1 and A.sup.2 and A.sup.3 are both monocyclic groups, or when A.sup.1 is a monocyclic group, a sum of p and q is 1 or 2 with the proviso that when the sum of p and q is 2, A.sup.2 and A.sup.3 are both monocyclic groups; X is --CH.sub.2 CH.sub.2 --, --CH.dbd.CH-- or --C.tbd.C--; W is a fluorine atom or a hydrogen atom; n is an integer of 1 to 10; m, p and q are each 0 or 1; u and w are each an integer of 0 to 3; and * indicates an asymmetric carbon atom, which is useful as a component of a liquid crystal mixture.
公开/授权文献
- US5030966A Antenna for a portable transceiver 公开/授权日：1991-07-09
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