JPS577457A - Ester - Google Patents
EsterInfo
- Publication number
- JPS577457A JPS577457A JP8124880A JP8124880A JPS577457A JP S577457 A JPS577457 A JP S577457A JP 8124880 A JP8124880 A JP 8124880A JP 8124880 A JP8124880 A JP 8124880A JP S577457 A JPS577457 A JP S577457A
- Authority
- JP
- Japan
- Prior art keywords
- compound
- formula
- liquid crystal
- react
- 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.)
- Granted
Links
Abstract
NEW MATERIAL:Liquid crstal esters of formula I (R is 5W9C straight chain alkyl).
EXAMPLE: Compounds of formula II.
USE: Compounds used to improve the characteristics of liquid crystals: since they have a wide liquid crystal temperature range, the liquid crystal compositions including the same is widened in the liquid crystal temperature range. They have large dielectric anisotropy and the liquid crystal with a negative dielectric anisotropy is changed to positive one by adding a small amount of the compound.
PREPARATION: A compound of formula III is obtained from p-hydroxybenzoic acid and R-Br. The product is made to react with thionyl chloride to give a compound of formula IV. The compound is dissolved in acetone and made to react with a sodium hydroxide solution containing p-hydroxybenzoic acid to give a compound of formula V. The reaction of the compound of formula V with thionyl chloride gives a compound of formula VI, which is made to react with a compound of formula VII to give the compound of formula I.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8124880A JPS577457A (en) | 1980-06-16 | 1980-06-16 | Ester |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8124880A JPS577457A (en) | 1980-06-16 | 1980-06-16 | Ester |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS577457A true JPS577457A (en) | 1982-01-14 |
JPS6125702B2 JPS6125702B2 (en) | 1986-06-17 |
Family
ID=13741089
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP8124880A Granted JPS577457A (en) | 1980-06-16 | 1980-06-16 | Ester |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS577457A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4550981A (en) * | 1982-09-30 | 1985-11-05 | Hoffmann-La Roche Inc. | Liquid crystalline esters and mixtures |
US4559161A (en) * | 1982-02-18 | 1985-12-17 | Kabushiki Kaisha Suwa Seikosha | Liquid crystal composition |
US4609256A (en) * | 1981-07-24 | 1986-09-02 | Seiko Epson Corporation | Liquid crystal optical device |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH01146801U (en) * | 1989-02-18 | 1989-10-11 |
-
1980
- 1980-06-16 JP JP8124880A patent/JPS577457A/en active Granted
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4609256A (en) * | 1981-07-24 | 1986-09-02 | Seiko Epson Corporation | Liquid crystal optical device |
US4559161A (en) * | 1982-02-18 | 1985-12-17 | Kabushiki Kaisha Suwa Seikosha | Liquid crystal composition |
US4550981A (en) * | 1982-09-30 | 1985-11-05 | Hoffmann-La Roche Inc. | Liquid crystalline esters and mixtures |
US4708441A (en) * | 1982-09-30 | 1987-11-24 | Hoffman-La Roche Inc. | Esters |
Also Published As
Publication number | Publication date |
---|---|
JPS6125702B2 (en) | 1986-06-17 |
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