Optically active tolan derivative

Details Optically active tolan derivative Optically active tolan derivative

1986-09-29

1988-06-28

Gron, Teddy S.

Organic compounds -- part of the class 532-570 series

Organic compounds

Carboxylic acid esters

560 64, 560 72, 25229964, 25229901, 2522996, C09K 1906, C09K 1952, C09K 1920, C07C 6976

Patent

active

047540516

ABSTRACT:
A novel optically active compound of the formula ##STR1## is capable of forming a chiral nematic liquid crystal composition having short spiral pitch by adding a small amount of it to a generally nematic liquid crystal composition. The compound of this invention is useful in the manufacture of SBE display device which is excellent especially in high level multiplexing driving system.

REFERENCES:
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patent: 4592858 (1986-06-01), Higuchi et al.
patent: 4705870 (1987-11-01), Takatsu et al.
patent: 4705905 (1987-11-01), Takatsu et al.
patent: 4713468 (1987-12-01), Takatsu et al.
Dubois et al., Mol. Cryst. Liq. Cryst., vol. 27, pp. 187-198 (1974).
Malthete et al., Mol. Cryst. Liq. Cryst., vol. 23, pp. 233-260 (1973).
Gray et al., Liquid Crystals & Plastic Crystals, vol. 1, pp. 142-143, 170-171 (1974).
Demus et al., ed., Flussige Kristalle in Tabellen, pp. 52-55 (1974).
Chemical Abstracts, vol. 87, No. 3, Jul. 18, 1977, 22693(b).
Chemical Abstracts, vol. 76, No. 7, Feb. 14, 1972, 34379(q).
Chemical Abstracts, vol. 82, No. 11, Mar. 17, 1975, 73031(k).

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