发明授权
- 专利标题: Optically active mesomorphic compound
- 专利标题(中): 光学活性介晶化合物
-
申请号: US373640申请日: 1989-07-03
-
公开(公告)号: US5143643A公开(公告)日: 1992-09-01
- 发明人: Takashi Iwaki , Kenji Shinjo , Akio Yoshida , Masataka Yamashita , Kazuharu Katagiri , Chieko Hioki , Takeshi Togano , Yoko Yamada , Masahiro Terada
- 申请人: Takashi Iwaki , Kenji Shinjo , Akio Yoshida , Masataka Yamashita , Kazuharu Katagiri , Chieko Hioki , Takeshi Togano , Yoko Yamada , Masahiro Terada
- 申请人地址: JPX Tokyo
- 专利权人: Canon Kabushiki Kaisha
- 当前专利权人: Canon Kabushiki Kaisha
- 当前专利权人地址: JPX Tokyo
- 优先权: JPX61-186578 19860808; JPX61-193974 19860821; JPX61-230049 19860930; JPX62-188301 19870727; JPX62-187498 19870729; JPX62-187499 19870729; JPX62-187500 19870729
- 主分类号: C07C43/13
- IPC分类号: C07C43/13 ; C07C43/205 ; C07C43/23 ; C07D239/26 ; C09K19/20 ; C09K19/30 ; C09K19/34
摘要:
An optically active mesomorphic compound represented by the formula (III) is obtained through an optically active compound represented by the formula (I) and then through a compound represented by the formula (II), respectively, shown below. ##STR1## In the above formulas, R represents a linear, branched or cyclic saturated or unsaturated hydrocarbon group having 1-18 carbon atoms each capable of having a substituent, C* represents an asymmetric carbon atom, k is an integer of from 2 to 5, A is a releasable active group such as hydroxyl, l is 0 or 1, and when l is 1, m is 0, 1 or 2 and n is 0 or 1; R.sup.1 represents an alkyl or alkoxy group having 1-18 carbon atoms; ##STR2## respectively denote ##STR3## p, q and r are respectively 0 or 1 satisfying the relation of p+q+r.gtoreq.1.
公开/授权文献
- US5667143A Spray gun for spraying two fluids 公开/授权日:1997-09-16