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

1994-10-13

1996-08-20

Kelly, C. H

Compositions

Liquid crystal compositions

Containing nonsteryl liquid crystalline compound of...

556406, 25229963, 359103, C09K 1934, C09K 1930, C07F 708, G02F 113

Patent

active

055476066

ABSTRACT:
A silacyclohexane compound represented by the following general formula (I). ##STR1## In this formula, R denotes hydrogen, a linear-chain alkyl 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, a fluoroalkyl group with a carbon number of 1-10 in which one or two hydrogen atoms are substituted by florine atom(s), or an alkenyl group with a carbon number of 2-8. For the groups ##STR2## at least one of these is a trans-1-sila-1,4-cyclohexylene or trans-4-sila-1,4-cyclohexylene group whose silicon at position 1 or position 4 has a substitutional group(s) of H, F, Cl or CH.sub.3, and the other denotes a trans-1,4-cyclohexylene group. 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 (R is the same as defined earlier). Y denotes H or F. Z denotes H or F.

REFERENCES:
patent: 2381002 (1945-08-01), Patrode et al.
patent: 2607791 (1952-08-01), Goodwin
patent: 4937364 (1990-06-01), Okinoshima
patent: 4965367 (1990-10-01), Baney et al.
patent: 4985565 (1991-01-01), Baney et al.

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