Silacyclohexane compound, a process for producing the same, and

Details Silacyclohexane compound, a process for producing the same, and Silacyclohexane compound, a process for producing the same, and

1996-10-31

1998-03-10

Wu, Shean C.

Compositions

Liquid crystal compositions

Containing nonsteryl liquid crystalline compound of...

25229963, 349182, C09K 1934, C09K 1930, G02F 113

Patent

active

057257973

ABSTRACT:
For the purpose of improving the characteristics of a liquid crystal substance, there is provided a silacyclohexane compound represented by the general formula (I): ##STR1## wherein R represents a specific straight-chain alkyl group, mono or difluoro alkyl group, branched-chain alkyl group, alkoxyalkyl group, and alkenyl group; at least one of rings A and B represent a trans-1-sila-1,4-cyclohexylene group or a trans-4-sila-1,4-cyclohexylene group both having a substituent group H, F, Cl, CH.sub.3 or Ar (Ar stands for a phenyl or tolyl group) on silicon at the 1 or 4 position, and the other group, if any, represents a trans-1,4-cyclohexylene group or ##STR2## Z represents CN, F, Cl, CF.sub.3, CClF.sub.2, CHClF, OCF.sub.3, OCClF.sub.2, OCHF.sub.2, OCHClF, R, or OR; L.sub.1 represents H, F or Cl; L.sub.2 and L.sub.3 stand independently for H or F; i represents an integer of 0 to 2; m is 1 or 2; n is 0 or 1; and if m is 2, the two rings may be the same or different.

REFERENCES:
patent: 5370819 (1994-12-01), Fujita et al.

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