JPS54160349A - Liquid crystal compound - Google Patents
Liquid crystal compoundInfo
- Publication number
- JPS54160349A JPS54160349A JP6793878A JP6793878A JPS54160349A JP S54160349 A JPS54160349 A JP S54160349A JP 6793878 A JP6793878 A JP 6793878A JP 6793878 A JP6793878 A JP 6793878A JP S54160349 A JPS54160349 A JP S54160349A
- Authority
- JP
- Japan
- Prior art keywords
- formula
- compound
- liquid crystal
- biphenylyl
- give
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Liquid Crystal Substances (AREA)
Abstract
NEW MATERIAL:A 1-(4'-cyano-4-biphenylyl)-4-alkyl-cyclohexene of formula I: (R is 1W9C straight chain alkyl group).
USE: Liquid crystal compounds having a positive dielectric anisotropy showing a liquid crystal state in a high temperature range, useful for enlarging the nematic temperature range.
PROCESS: A compound of formula III is added to a solution of a compound of formula II to give a mixture of cis and trans isomers of 1-(4-bromo-4-biphenylyl)- 4-alkyl-cyclohexanol, which is dehydrated in the absence or presence of a solvent, preferably toluene, with an acid catalyst, e.g. acid potassium sulfate, under heating to form a compound of formula IV, which is then reacted with Cu2CN2 in a dipolar aprotic solvent, e.g. DMF, to give the desired compound of formula I.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6793878A JPS54160349A (en) | 1978-06-06 | 1978-06-06 | Liquid crystal compound |
CA315,948A CA1106406A (en) | 1977-11-21 | 1978-11-07 | Liquid crystal compounds |
US05/960,710 US4211666A (en) | 1977-11-21 | 1978-11-14 | Liquid crystal compounds |
DD78209223A DD140567A5 (en) | 1977-11-21 | 1978-11-21 | METHOD FOR PRODUCING LIQUID CRYSTAL COMPOUNDS |
EP78300649A EP0002136B1 (en) | 1977-11-21 | 1978-11-21 | Substituted benzonitriles, their preparation, liquid crystal compositions containing them and display devices employing such compositions |
DE7878300649T DE2861217D1 (en) | 1977-11-21 | 1978-11-21 | Substituted benzonitriles, their preparation, liquid crystal compositions containing them and display devices employing such compositions |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6793878A JPS54160349A (en) | 1978-06-06 | 1978-06-06 | Liquid crystal compound |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS54160349A true JPS54160349A (en) | 1979-12-19 |
Family
ID=13359362
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP6793878A Pending JPS54160349A (en) | 1977-11-21 | 1978-06-06 | Liquid crystal compound |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS54160349A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2009011338A (en) * | 2007-06-29 | 2009-01-22 | Kokuyo Co Ltd | Furniture with top plate |
-
1978
- 1978-06-06 JP JP6793878A patent/JPS54160349A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2009011338A (en) * | 2007-06-29 | 2009-01-22 | Kokuyo Co Ltd | Furniture with top plate |
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