申请人:Kashima Oil Company
公开号:US05368771A1
公开(公告)日:1994-11-29
There are disclosed a novel optically active tetrahydropyrane derivatives (for example, (2R,5R,6R)-tetrahydro-6-trifluoromethyl-2-hexyloxy-5-(4"-hexyloxybiphenyl) -4'-carbonyloxy)pyrane; (2S,5R,6R)-tetrahydro-6-trifluoromethyl-2-hexyloxy-5-(4"-hexyloxybiphenyl) -4'-carbonyloxy)pyrane, etc. may be mentioned.) represented by the formula (I): ##STR1## or (I'): ##STR2## wherein symbols in the formula are as described in the specification, which is available as a liquid crystal material used for a display device or an electro-optic device, a liquid crystal composition and a liquid crystal device containing the same. The optically active tetrahydropyrane derivative of the present invention can improve high speed response particularly when it is made a composition, and is available as a compositional component for a ferroelectric liquid crystal which induces a large spontaneous polarization.
本发明公开了一种新型光学活性四氢吡喃衍生物(例如,(2R,5R,6R)-四氢-6-三氟甲基-2-己氧基-5-(4"-己氧基联苯)-4'-羰氧基)吡喃;(2S,5R,6R)-四氢-6-三氟甲基-2-己氧基-5-(4"-己氧基联苯)-4'-羰氧基)吡喃等),其由式(I)或式(I')表示:##STR1##或##STR2## 公式中的符号如说明书所述,可作为液晶材料用于显示器件或电光器件、液晶组合物和含有液晶组合物的液晶器件。本发明的光学活性四氢吡喃衍生物在制成组合物时可提高高速响应性,可作为诱导大自发极化的铁电液晶的组合成分。