Phenylethanes

Details Phenylethanes Phenylethanes

1982-10-01

1986-04-22

Gron, Teddy S.

Compositions

Radioactive compositions

Nuclear reactor fuel

25229961, 2522995, 25229963, 25229966, 350350S, 585 20, 585 25, C09K 334, G02F 113, C07C 126, C07C 503, C07C 1328, C07C 286

Patent

active

045838267

ABSTRACT:
Compounds of the formula ##STR1## wherein R.sup.1 signifies trans-4-alkylcyclohexyl, 4'-alkyl-4-biphenylyl, p-(trans-4-alkylcyclohexyl)phenyl, 2-(trans-4-alkylcyclohexyl)ethyl or p-[2-(trans-4-alkylcyclohexyl)ethyl]phenyl and R.sup.2 signifies trans-4-alkylcyclohexyl; or R.sup.1 signifies trans-4-alkylcyclohexyl and R.sup.2 signifies p-(trans-4-alkylcyclohexyl)phenyl, p-[2-(trans-4-alkylcyclohexyl)ethyl]phenyl or 4'-(trans-4-alkylcyclohexyl)-4-biphenylyl; or R.sup.1 signifies p-alkylphenyl and R.sup.2 signifies p-[2-(trans-4-alkylcyclohexyl)ethyl]phenyl, and the alkyl groups in the substituents R.sup.1 and R.sup.2 are straight-chain groups containing 1 to 7 carbon atoms, liquid crystalline mixtures which contain these compounds and their use for electro-optical purposes are described.
The novel compounds of formula I are especially valuable as components in liquid crystal mixtures and themselves have liquid crystalline properties.

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Carr et al., Lecture on "New Liquid Crystalline Materials Derived from Bicyclooctane and Cyclohexane" at the 4th International LC Conference of Socialist Countries in Tiflis (Oct. 5-8, 1981).
Gray, Lecture on "Relationship Between Chemical Structure and Properties for Low Molecular Weight Liquid Crystals" at Santa Margherita Ligure, Italy (Jun., 1981).
U.S. Ser. No. 341,926, 1/82 Rich et al.

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