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

1995-12-21

1997-10-21

Kelly, C. H.

Compositions

Liquid crystal compositions

Containing nonsteryl liquid crystalline compound of...

556406, 25229963, C09K 1934, C07F 708

Patent

active

056797460

ABSTRACT:
A silacyclohexane compound represented by the following general formula (I): ##STR1## wherein R denotes a mono- or di-fluoroalkyl group with 1-10 carbons: ##STR2## denotes a trans-1-silacyclohexylene or a trans-4-silacyclohexylene group whose silicon at position 1 or position 4 has a substitutional group 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, (O).sub.3 CY.sub.1 .dbd.CX.sub.1 X.sub.2 (X.sub.1 and Y.sub.1 denote H, F or Cl, and X.sub.2 denotes F or Cl) (O).sub.3 C.sub.p H.sub.q F.sub.r (p denotes 2, 3 or 4, and q and r are integers which satisfy the equation q+r=2p+1, and s denotes 0 or 1), the aforementioned R, or an alkyl or alkoxy group with 1-5 carbons;
Y denotes H or F; and
Z denotes H or F;
and process of manufacturing same.

REFERENCES:
patent: 5454977 (1995-10-01), Shimizu et al.
patent: 5496501 (1996-03-01), Shimizu et al.
patent: 5523440 (1996-06-01), Nakashima et al.
patent: 5527490 (1996-06-01), Kinsho et al.
patent: 5560866 (1996-10-01), Ogihara et al.
patent: 5567350 (1996-10-01), Shimizu et al.
T. Sadao, H. Takatsu, Preparation of (Fluoroalkyl)cyclohexane Derivatives as Liquid Crystals, Jan. 9, 1995, Chemical Abstracts, vol. 122, No. 2, p. 833.

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