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US 4,900,472 AGranted
2,5-diphenyl pyrimidine compounds and liquid crystal compositions
AssigneeChisso Corporation
InventorsKazutoshi Miyazawa, Makoto Ushioda, Hiromichi Inoue, Shinichi Saito, Kouji Ohno
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Abstract
The present invention provides optically active compounds represented by the following general formula: ##STR1## liquid crystal compositions containing the compounds, and electro optical elements using the above compositions. The compounds of the present invention are optically active compounds having characteristics suited for a ferroelectric liquid crystal composition, especially having enough spontaneous polarization to realize quick response.
Claims11
An optically active compound represented by the formula:
- ##STR35## wherein R.sup.1 is alkyl or alkoxy having 4-12 carbon atoms, R.sup.2 is alkyl, acyl or alkoxyacyl having 4-8 carbon atoms, ##STR36## and * indicates an asymmetric carbon atom.
Dependencies are inferred from the claim text.