Aromatic esters and liquid crystal mixtures containing same

Details Aromatic esters and liquid crystal mixtures containing same Aromatic esters and liquid crystal mixtures containing same

1994-03-29

1995-02-28

Wu, Shean

Compositions

Liquid crystal compositions

25229901, 25229966, 25229967, 544298, 546290, 546301, C09K 1934, C09K 1952, C07D23902, C07D21362

Patent

active

053934580

ABSTRACT:
Compounds of the general formula ##STR1## wherein R.sup.1 signifies alkyl or alkenyl with 1 to 12 and, respectively, 2 to 12 carbon atoms, which is unsubstituted or mono- or multiply-substituted with halogen and in which one methylene group can be replaced by --O--;

REFERENCES:
patent: 4892676 (1990-01-01), Sakurai et al.
patent: 5167859 (1992-12-01), Wachtler et al.
Derwent Abstract 88-244356/35 (1988) for DD 257 638.
Fukumasa et al., "Fluoro compounds, manufacture of their intermediates, and liquid crystal compositions containing the fluoro compounds", Chem. Abs. 116:162680n (1992).
Heppke et al., "The S.sub.M phase: evidence for a new type of tilted smectic phase", Mol. Cryst. Liq. Crystal. 208:9-19 (1991).
Shiratori et al., "New ferroelectric liquid crystals having 2-fluoro-2-methyl alkanoyloxy group", Mol. Cryst. Liq. Cryst. 199:129-140 (1991).
Bomelburg et al., "Synthesis and ferroelectric properties of 2,5-diphenyloyrimidines with different .alpha.-fluorocarboxylic acids", Zeitschrift fur Naturforschung B, 44:1127-1131 (1989).
Shibata et al., "Optically active citronellic acid esters and ferroelectric liquid-crystal compositions containing the esters", Chem. Abs. 113:201537f (1990).
Myazawa et al., "2,5-Diphenylpyrimidine derivatives, liquid crystal compositions containing them, and electrooptical display devices", Chem. Abs. 111:205651v (1989).
Murayama et al., "Liquid crystal materials containing phenylpyrimidine derivatives and display elements therefrom", Chem. Abs. 110:125654n (1989).
Matsumoto et al., "Multiplexed ferroelectric liquid crystal display", Ferroelectrics 85:235-254 (1988).
Fukumasa et al., "Optically active (phenylpyrimidinyl)phenyl propionate derivative and liquid crystal composition containing same", Chem. Abs. 115:244241p (1991).
Shionozaki et al., "Biphenylpyridine derivatives as ferroelectric liquid crystals", Chem. Abs. 110:223266g (1989).
Shiratori et al., "Biphenylpyrimidinyl esters and liquid-crystal compositions containing them", Chem. Abs. 117:161126v (1992).
Murayama et al., "Preparation of optically-active lactic acid aryl esters and liquid crystal devices using them", Chem. Abs. 116:162678t (1992).
Fukumasa et al., "Phenylpyrimidinylphenyl esters for liquid crsytal compositions", Chem. Abs. 117:121719j (1992).
Shibata et al., Chem. Abstracts 110:125661n (1989).
Krone et al., Liquid Crystals, vol. 2 (No. 4) pp. 411-422 (1987).

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