NOVEL DIAMANTANE COMPOUNDS, LIQUID CRYSTALLINE COMPOUNDS, AND LIQUID CRYSTALLINE COMPOSITIONS
申请人:Yokoyama Yasushi
公开号:US20110015426A1
公开(公告)日:2011-01-20
A liquid crystalline compound has excellent liquid crystal properties, particularly high phase transition temperature. Diamantane compounds are represented by the general formula (I):
(I) wherein A and B are each a six-membered, saturated or unsaturated, carbo- or hetero-cycle, and these cycles may have substituents, which substituents may be united to form a ring; and R
1
and R
2
are each a hydrocarbon group having 1 to 18 carbon atoms, and part of the carbon atoms of the hydrocarbon group may be replaced by heteroatoms or heteroatom-containing groups, while part of the hydrogen atoms thereof may be replaced by halogen atoms or heteroatom-containing groups.