Liquid crystalline compounds, liquid crystal compositions containing the
申请人:Daiso Co., Ltd.
公开号:US05338482A1
公开(公告)日:1994-08-16
Liquid crystalline compounds having an optically active .gamma.-lactone ring of the general formula (A): ##STR1## wherein R.sup.1 is a group selected from the class consisting of ##STR2## n and e are each independently 0 or 1, R.sup.3 is an alkyl group having 1 to 15 carbon atoms or an alkenyl group having 2 to 15 carbon atoms, said alkyl and alkenyl groups having each optionally one or more asymmetric carbon atoms, X and Y are each hydrogen atom, a halogen atom or a cyano group, R.sup.2 is an alkyl group having 1 to 15 carbon atoms or an alkenyl group having 2 to 15 carbon atoms, said alkyl and alkenyl groups having each optionally one or more asymmetric carbon atoms, and * means an asymmetric carbon atom, a liquid crystal composition Containing the same and an element for opto-electronics devices comprising the liquid crystal composition.
A new series of liquid crystalline materials containing boron atoms
作者:Koji Seto、Shigetoshi Takahashi、Tadasu Tahara
DOI:10.1039/c39850000122
日期:——
The dioxaborinane derivatives, which were synthesized by a method including a new Pd-catalysed coupling reaction, form mesomorphic phases in a wide temperature range, and provide a new series of liquidcrystalline compounds containing a boronatom in the principal structure.