Optical active compounds and liquid crystal compositions containing such compounds
申请人:WAKO PURE CHEMICAL INDUSTRIES, LTD
公开号:EP0402110A1
公开(公告)日:1990-12-12
An optical active compound of the formula:
wherein R is alkyl or alkoxy, R* is an optical active alkyl group, X is alkyl or halogen, Y is a single bond
and C* is an asymmetric carbon, is chemically stable and shows or induces large spontaneous polarization and is useful in a chiral liquid crystal composition.