Triphenylene derivatives

Details Triphenylene derivatives Triphenylene derivatives

1984-12-21

1986-12-23

Gron, Teddy S.

Compositions

Liquid crystal compositions

Containing nonsteryl liquid crystalline compound of...

2522995, 2522996, 25229901, 350350R, 350350S, 558396, 558397, 568 28, 568 32, 568 34, 568 36, 568 45, 568 47, 568 49, 568 55, 568 57, 568 58, 568 66, 568 67, 558257, C09K 334, C07C14930, C07C14934, C07C14931, C07C149415, C07C14706, C07C14708, C07C14714

Patent

active

046311432

ABSTRACT:
Triphenylene derivatives of the formula I ##STR1## wherein X.sup.1 to X.sup.6 are each, independently of one another, --SH, --SR, --SOR, --SO.sub.2 R or --S--COR, and each R is an alkyl group with up to 20 C atoms, it being possible for one or two CH.sub.2 groups to be replaced by O atoms and/or by unsubstituted or substituted vinylene or vinylidene groups, may be used as components of discotic liquid-crystalline phases.

REFERENCES:
patent: 4333709 (1982-06-01), Dubois et al.
patent: 4430650 (1984-02-01), Billard et al.
patent: 4578210 (1986-03-01), Praefcke et al.
Chandrasekhar, S., Mol. Cryst. Liq. Cryst., vol. 63, pp. 171-180 (1981).
Destrade, C., et al., Mol. Cryst. Liq. Cryst., vol. 71, pp. 111-135 (1981).
Kohne, B., et al., Chem. Zeitung, vol. 108 (12), pp. 408-410 and No. 3, p. 113 (1984).
LeBarny, P., et al., Liq. Cryst. Ordered Fluids, vol. 4, pp. 57-74 (1984).
Destrade, C., et al., J. de Physique, col. C3, suppl. No. 4, tome 40, pp. C3-3-17-C3-21 (Apr. 1979).
Dubois, J. C., et al., Liq. Cryst. Ordered Fluids, vol. 4, pp. 1043-1060 (1984).

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