发明授权
- 专利标题： Optically active ester derivatives, preparation process thereof, liquid crystal materials and a light switching element
- 专利标题（中）： 光学活性酯衍生物，其制备方法，液晶材料和光开关元件
-
申请号： US854585申请日： 1992-03-20
-
公开(公告)号： US5264151A公开(公告)日： 1993-11-23
- 发明人: Takayuki Higashi , Isao Kurimoto , Shoji Toda , Masayoshi Minai , Takeshi Tani , Chizu Kawakami , Koichi Fujisawa , Kiyoshi Imamura
- 申请人： Takayuki Higashi , Isao Kurimoto , Shoji Toda , Masayoshi Minai , Takeshi Tani , Chizu Kawakami , Koichi Fujisawa , Kiyoshi Imamura
- 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： JPX63-215986 19880829; JPX63-217189 19880830; JPX63-223853 19880906; JPX63-248671 19880929; JPX63-249529 19881003
- 主分类号： C07C43/178
- IPC分类号： C07C43/178 ; C07C49/84 ; C07C65/21 ; C09K19/20 ; C09K19/12 ; C07C39/00 ; C07C67/02 ; C07C69/66
摘要：
Disclosed herein are optically active phenols of formula (V) which are useful as precursors for esters used in liquid crystalline crystalline mixtures: ##STR1## wherein R.sub.2 represents an optically active alkyl or alkoxyalkyl group having 3 to 15 carbon atoms optionally substituted by halogen atoms; k represents a number of 0 or 1; n represents a number of 1 to 6.
公开/授权文献
- US6114140A DNA encoding density enhanced protein tyrosine phosphatases 公开/授权日：2000-09-05
信息查询
