Organic compounds -- part of the class 532-570 series – Organic compounds – Four or more ring nitrogens in the bicyclo ring system
Patent
1987-02-20
1989-05-30
Gron, Teddy S.
Organic compounds -- part of the class 532-570 series
Organic compounds
Four or more ring nitrogens in the bicyclo ring system
25229901, 2522995, 25229961, 350350R, 350350S, 544224, 544248, 544318, 544335, 544336, 544408, G02F 113, C09K 1934, C07D23700, C07D23702, C07D23902
Patent
active
048352748
ABSTRACT:
A liquid crystal compound comprising the following general formula (1): ##STR1## where i, j and k individually represent an integer within a range: 1.ltoreq.i.ltoreq.8, 0.ltoreq.j.ltoreq.7, 4.ltoreq.k.ltoreq.14, Ar.sub.1 represents ##STR2## *represents an asymmetric carbon and the compound is required to be optically active. The compound can provide various merits as the chiral substance such as satisfactory optical rotation, capability of inducing twisted arrangement when added to the TN system or phase transition system liquid crystal mixture, and of enlarging the liquid crystal temperature range when added to SmC* liquid crystal mixture.
REFERENCES:
patent: 4011610 (1982-01-01), Zaschk et al.
patent: 4623477 (1986-11-01), Ogawa et al.
patent: 4657695 (1987-04-01), Saito et al.
patent: 4709030 (1987-11-01), Petzilka et al.
patent: 4713197 (1987-12-01), Eidenschink et al.
patent: 4721367 (1988-01-01), Yoshinaga et al.
Zaschke, H. et al., J. Prakt. Chem., vol. 321(4), pp. 619-628 (1979).
Isenberg, A. et al., Z. Chem., vol. 23(8), pp. 296-297 (1983).
C.A. 92:58715c (1980).
Demus, D. et al., Flussige Kristalle in Tabellen II, VEB Deutscher Verlag fur Grundstoffindustrie, Leipzig, pp. 372-388 (1984).
Zaschke, H., Advances in Liquid Crystal Research and Applications, Bata, L., Pergamon Press, Oxford, pp. 1059-1074 (1980).
Gray, G. W. et al., Liquid Crystals & Plastic Crystals, vol. 1, John Wiley & Sons, Inc., N.Y., pp. 142-143 (1974).
Alps Electric Co. ,Ltd.
Gron Teddy S.
Malaska Stephen L.
Shoup Guy W.
Winters Paul J.
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