Fluoroalkoxydiphenyl pyrimidine, liquid crystal composition and electro-optic element

摘要

New fluoroalkoxydiphenyl pyrimidines which are organic compounds having optically active groups, liquid crystal compositions containing the said compounds and electro-optic elements using the said compositions are provided. The compounds have the following general formula: <IMAGE> (I) wherein R1 is an alkyl or alkoxy group having 1-20 carbon atoms, a halogen atom or a cyano group, R2 is a straight-chain or branched chain alkyl group having 1-15 carbon atoms, -A- is a group of <IMAGE> X and Y independently indicate a hydrogen atom, a halogen atom or a cyano group, and * indicates that its carbon atom is an asymmetric carbon atom.