JPS57149250A - Diesters of 2,3-dichlorohydroquinone - Google Patents
Diesters of 2,3-dichlorohydroquinoneInfo
- Publication number
- JPS57149250A JPS57149250A JP3614781A JP3614781A JPS57149250A JP S57149250 A JPS57149250 A JP S57149250A JP 3614781 A JP3614781 A JP 3614781A JP 3614781 A JP3614781 A JP 3614781A JP S57149250 A JPS57149250 A JP S57149250A
- Authority
- JP
- Japan
- Prior art keywords
- liquid crystal
- dichlorohydroquinone
- trans
- reacted
- 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
- Liquid Crystal Substances (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
NEW MATERIAL:A diester of 2,3-dichlorohydroquinone shown by the formula (the ring A and the ring B are cyclohexylene, phenylene; R1 and R2 are H, 1W8C alkyl, alkoxy).
EXAMPLE: 1,4-Bis(4-trans-benzylcyclohexylcarbonyloxy)2,3-dichlorobenzene.
USE: A liquid crystal substance having a negative dielectric anisotropy. Having a wide range of liquid crystal temperature, and excellent as a component for liquid crystal material because of its small rise in viscosity.
PROCESS: In a case of symmetric type diester a 4-substituted benzoic acid or trans-4-substituted cyclohexanecarboxylic acid is reacted with a chlorinating agent such as thionyl chloride to give an acid chloride, 2mol of this acid chloride is reacted with 1mol 2,3-dichlorohydroquinone in a basic solvent (e.g., pyridine), to give a symmetric type compound shown by the formula V.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3614781A JPS57149250A (en) | 1981-03-13 | 1981-03-13 | Diesters of 2,3-dichlorohydroquinone |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3614781A JPS57149250A (en) | 1981-03-13 | 1981-03-13 | Diesters of 2,3-dichlorohydroquinone |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS57149250A true JPS57149250A (en) | 1982-09-14 |
Family
ID=12461673
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP3614781A Pending JPS57149250A (en) | 1981-03-13 | 1981-03-13 | Diesters of 2,3-dichlorohydroquinone |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS57149250A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4830470A (en) * | 1986-05-22 | 1989-05-16 | Hoffmann-La Roche Inc. | Liquid crystalline esters |
US5082589A (en) * | 1986-05-22 | 1992-01-21 | Hoffmann-La Roche Inc. | Liquid crystalline esters |
-
1981
- 1981-03-13 JP JP3614781A patent/JPS57149250A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4830470A (en) * | 1986-05-22 | 1989-05-16 | Hoffmann-La Roche Inc. | Liquid crystalline esters |
US5082589A (en) * | 1986-05-22 | 1992-01-21 | Hoffmann-La Roche Inc. | Liquid crystalline esters |
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