JPS5775939A - 3-(trans-4"-alkylcyclohexyl)cyclohexyl) fluorobenzene - Google Patents
3-(trans-4"-alkylcyclohexyl)cyclohexyl) fluorobenzeneInfo
- Publication number
- JPS5775939A JPS5775939A JP15177280A JP15177280A JPS5775939A JP S5775939 A JPS5775939 A JP S5775939A JP 15177280 A JP15177280 A JP 15177280A JP 15177280 A JP15177280 A JP 15177280A JP S5775939 A JPS5775939 A JP S5775939A
- Authority
- JP
- Japan
- Prior art keywords
- trans
- formula
- alkylcyclohexyl
- compound
- fluorobenzene
- 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.)
- Granted
Links
Landscapes
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Liquid Crystal Substances (AREA)
Abstract
NEW MATERIAL:3-[trans-4'-(trans-4"-alkylcyclohexyl)cyclohexyl]fluorobenzene.
USE: A liquid crystal with a small positive dielectric anisotropy and low viscosity. This substance hardly crystallizes out to be helpful to improvement in display characteristics at low temperature. Further, it is used to expand the nematic temperature range.
PREPARATION: 4'-(trans-4-Alkylcyclohexyl)cyclohexanol of formula II is oxidized with chromic anhydride to give 4-(trans-4'-alkylcyclohexyl)cyclohexanone of formula III. In the meantime, the reaction between 3-bromofluorobenzene and metallic magnesium gives 4-fluorophenylmagnesium bromide and both produces are made to react to produce a compound of formula IV. The compound of formula IV is dehydrated to a compound of formula V, which is hydrogenated and recrystallized.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15177280A JPS5775939A (en) | 1980-10-29 | 1980-10-29 | 3-(trans-4"-alkylcyclohexyl)cyclohexyl) fluorobenzene |
US06/302,517 US4405488A (en) | 1980-10-09 | 1981-09-16 | Liquid-crystalline halogenobenzene derivatives |
DE3139130A DE3139130C2 (en) | 1980-10-09 | 1981-10-01 | Liquid crystalline halobenzene derivatives and liquid crystal compositions containing these compounds |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15177280A JPS5775939A (en) | 1980-10-29 | 1980-10-29 | 3-(trans-4"-alkylcyclohexyl)cyclohexyl) fluorobenzene |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5775939A true JPS5775939A (en) | 1982-05-12 |
JPS632245B2 JPS632245B2 (en) | 1988-01-18 |
Family
ID=15525950
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP15177280A Granted JPS5775939A (en) | 1980-10-09 | 1980-10-29 | 3-(trans-4"-alkylcyclohexyl)cyclohexyl) fluorobenzene |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5775939A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5916840A (en) * | 1982-07-21 | 1984-01-28 | Chisso Corp | 3-fluoro-4-substituted-(trans-4'-(trans-4"-alkylcyclohexyl) cyclohexyl)benzene |
-
1980
- 1980-10-29 JP JP15177280A patent/JPS5775939A/en active Granted
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5916840A (en) * | 1982-07-21 | 1984-01-28 | Chisso Corp | 3-fluoro-4-substituted-(trans-4'-(trans-4"-alkylcyclohexyl) cyclohexyl)benzene |
JPH0244290B2 (en) * | 1982-07-21 | 1990-10-03 | Chisso Corp |
Also Published As
Publication number | Publication date |
---|---|
JPS632245B2 (en) | 1988-01-18 |
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