Silacyclohexane compound, a method of preparing it and a liquid

Details Silacyclohexane compound, a method of preparing it and a liquid Silacyclohexane compound, a method of preparing it and a liquid

1994-12-05

1996-03-05

Wu, Shean C.

Compositions

Liquid crystal compositions

Containing nonsteryl liquid crystalline compound of...

556406, C09K 1934, C07F 708

Patent

active

054965012

ABSTRACT:
A silacyclohexane compound represented by the following general formula (I). ##STR1## In this formula, R denotes a linear-chain alkyl group with a carbon number of 1-10, a mono- or di-fluoroalkyl group with a carbon number of 1-10, a branched-chain alkyl group with a carbon number of 3-8, an alkoxyalkyl group with a carbon number of 2-7, or an alkenyl group with a carbon number of 2-8. ##STR2## denotes a trans-1-silacyclohexylene or trans-4-silacyclohexylene group whose silicon at position 1 or position 4 has a substitutional group(s) of H, F, Cl or CH.sub.3. X denotes a CN, F, Cl, CF.sub.3, CF.sub.2 Cl, CHFCl, OCF.sub.3, OCHF.sub.2, OCF.sub.2 Cl, OCHFCl, R or OR group. Y denotes H or F. Z denotes H or F.

REFERENCES:
Journal of the American Chemical Society, vol. 94, No. 14, Jul. 12, 1972, pp. 5080-5082, "New Conformationally Stable 4-tert-Butyl-1-silacyclohexanes and Stereochemistry of Insertion of Dimethylsilylenes into the Silicon Hydrogen Bond;"; H. Sakurai, et al.
Liebigs Ann. Chem. No. 9, 1979, pp. 1915-1924; "Derivate des 1-(4-Chlorpheny)silacyclohexans mit 3-(Diethyl-amino)propyl- und 2-(Diethylamino)ethyl-Gruppierungen".

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