JPS57206672A - Piperazine phenyl ester derivative and liquid crystal composition - Google Patents
Piperazine phenyl ester derivative and liquid crystal compositionInfo
- Publication number
- JPS57206672A JPS57206672A JP56089068A JP8906881A JPS57206672A JP S57206672 A JPS57206672 A JP S57206672A JP 56089068 A JP56089068 A JP 56089068A JP 8906881 A JP8906881 A JP 8906881A JP S57206672 A JPS57206672 A JP S57206672A
- Authority
- JP
- Japan
- Prior art keywords
- liquid crystal
- crystal composition
- alkylpiperazine
- phenyl ester
- ester derivative
- 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
- Liquid Crystal Substances (AREA)
Abstract
NEW MATERIAL:The piperazine phenyl ester derivative of formula[x is CnH2n+1 (n is integer of 3W7)].
EXAMPLE: 4-n-Propylpiperazinebenzoic acid 4'-cyanophenyl ester.
USE: a basic material for the preparation of a liquid crystal composition giving a liquid crystal composition having wide temperature range to exhibit the liquid crystal nematic mesophase and having high industrial value.
PROCESS: The compound of formula can be prepared by (1) preparing N-(4- bromophenyl)-N'-n-alkylpiperazine from 4-bromoaniline and N-alkyl-bis(β-chloroethylamine), (2) converting the product to N-(4-cyanophenyl)-N'-n-alkylpiperazine with cuprous cyanide, (3) hydrolyzing the product, and (4) reacting the resultant 4-[N-(N'-n-alkylpiperazine)]benzoic acid with 4-cyanophenol.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP56089068A JPS57206672A (en) | 1981-06-10 | 1981-06-10 | Piperazine phenyl ester derivative and liquid crystal composition |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP56089068A JPS57206672A (en) | 1981-06-10 | 1981-06-10 | Piperazine phenyl ester derivative and liquid crystal composition |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS57206672A true JPS57206672A (en) | 1982-12-18 |
JPH0118906B2 JPH0118906B2 (en) | 1989-04-07 |
Family
ID=13960531
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP56089068A Granted JPS57206672A (en) | 1981-06-10 | 1981-06-10 | Piperazine phenyl ester derivative and liquid crystal composition |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS57206672A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7622056B2 (en) * | 2006-12-06 | 2009-11-24 | Industrial Technology Research Institute | High dielectric anisotropy liquid crystal compound and composition containing the same |
-
1981
- 1981-06-10 JP JP56089068A patent/JPS57206672A/en active Granted
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7622056B2 (en) * | 2006-12-06 | 2009-11-24 | Industrial Technology Research Institute | High dielectric anisotropy liquid crystal compound and composition containing the same |
Also Published As
Publication number | Publication date |
---|---|
JPH0118906B2 (en) | 1989-04-07 |
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