Liquid crystalline mixtures having a chiral tilted smectic phase

Details Liquid crystalline mixtures having a chiral tilted smectic phase Liquid crystalline mixtures having a chiral tilted smectic phase

1994-02-18

1996-01-23

Harris, Cynthia

Compositions

Liquid crystal compositions

Containing nonsteryl liquid crystalline compound of...

25229966, 359103, 560102, 544298, 546339, C09K 1934, C09K 1912, C07C 6976, C02F 113

Patent

active

054863104

ABSTRACT:
Optically active compounds of the formula ##STR1## wherein rings A, B and C each independently are unsubstituted or each are 1,4-phenylene substituted with at least one of halogen-, cyano-, methyl- or methoxy in which optionally 1 CH group or 2 CH groups is/are replaced by nitrogen; R.sup.1 is a radical of an optically active terpene alcohol after cleavage of the hydroxy group or a group --(CH.sub.2).sub.m --C*HX.sup.1 --R.sup.3 ; R.sup.2 is a radical of an optically active terpene alcohol after cleavage of the hydroxy group or a group --(CH.sub.2).sub.n --C*HX.sup.2 --R.sup.4 ; m and n each independently stand for the number 0 or 1: C* denotes a chiral carbon atom; X.sup.1 and X.sup.2 each independently are fluorine, chlorine, cyano, methyl or methoxy; R.sup.3 and R.sup.4 each independently denote a group R, phenyl or phenyl substituted with R, with the proviso that R.sup.3 is different from X.sup.1 and R.sup.4 is different from X.sup.2 ; R is an alkyl group in which optionally one methylene group is replaced by oxygen and/or optionally one group CH--CH is replaced by a group C.dbd.C; with the proviso that R.sup.1 and R.sup.2 are not simultaneously 2-alkyl when rings A, B and C together are p-terphenyl,
as well as liquid crystalline mixtures and their use for electro-optical purposes.

REFERENCES:
patent: 4732699 (1988-03-01), Higuchi et al.
patent: 4753752 (1988-06-01), Raynes et al.
patent: 4834904 (1989-05-01), Krause et al.
patent: 5064569 (1991-11-01), Geelhaar et al.
patent: 5089169 (1992-02-01), Mochizuki et al.
patent: 5100579 (1992-03-01), Higuchi et al.
patent: 5128062 (1992-07-01), Kobayashi et al.
patent: 5290477 (1994-03-01), Kondo et al.
Demus et al., Z. Phys. Chemie, Leipzig 252, (1973) pp. 93-112.
Demus et al., Chem. Abs. 70:152429v (1973).
Rabinovich et al., Liq. Crys. 6(5) 533 (1989).
Mol. Liq. Cryst. 1992, vol. 215, pp. 13-30.

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