Chiral nonracemic molecules which are useful in the preparation of high polarization density FLC compositions and which have the following structure are provided: ##STR1## wherein Ph is a 1,4 substituted phenyl group, m=2 and n=1 or m=1 and n=2, asymmetric carbons are indicated by *. R is an alkyl group having three to fifteen carbon atoms, and R' is an alkyl group having one to seven carbons. The invention in particular provides compounds having the R,R or S,S configuration in the epoxide tail. The epoxy phenylbenzoates of this invention display a property of inducing a tilt angle greater than expected in FLC compositions in which they are combined.
提供了在制备高极化密度FLC组合物中有用的手性非消旋分子,其具有以下结构:##
STR1##其中Ph是1,4取代
苯基,m=2且n=1或m=1且n=2,不对称
碳由*表示。R是具有三至十五个
碳原子的烷基基团,R'是具有一至七个
碳原子的烷基基团。该发明特别提供了在环
氧尾部具有R,R或S,S构型的化合物。本发明的环
氧苯基
苯甲酸酯表现出诱导倾斜角大于预期的特性,在其中它们被结合的FLC组合物中。