JPS5543016A - Dicyanohydroquinonecyclohexanecarboxylic ester - Google Patents
Dicyanohydroquinonecyclohexanecarboxylic esterInfo
- Publication number
- JPS5543016A JPS5543016A JP11559178A JP11559178A JPS5543016A JP S5543016 A JPS5543016 A JP S5543016A JP 11559178 A JP11559178 A JP 11559178A JP 11559178 A JP11559178 A JP 11559178A JP S5543016 A JPS5543016 A JP S5543016A
- Authority
- JP
- Japan
- Prior art keywords
- dicyano
- trans
- alkyl
- formula
- liquid crystal
- 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)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
NEW MATERIAL:A 2,3-dicyano-p-hydroquinonecyclohexanecarboxylic ester of the formula (R1 and R2 are H, 1-10C alkyl or alkyloxy groups).
EXAMPLE: 2,3-Dicyans-1,4-bis (trans-4-octylcyclohexylcarboxy) benzene.
USE: Liquid crystal materials having a large negative dielectric anisotropy useful for light scattering or DAP type liquid crystal display units and guest-host type color display units, without degrading the optical stability of the well-known practical liquid crystals.
PROCESS: Cyclohexanecarboxylic acid or its trans-4-alkyl or alkoxy derivative is chlorinated. Two moles of the chlorination product is reacted with one mole of 2,3-dicyano-1,4-hydroquinone in a basic solvent to give the objective compound of formula I.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (8)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11559178A JPS5543016A (en) | 1978-09-20 | 1978-09-20 | Dicyanohydroquinonecyclohexanecarboxylic ester |
US06/074,655 US4279770A (en) | 1978-09-20 | 1979-09-12 | Liquid crystal 2,3-dicyano-hydroquinone derivatives |
DE2937700A DE2937700C2 (en) | 1978-09-20 | 1979-09-18 | 2,3-dicyano-hydroquinone derivatives and liquid crystal materials containing these derivatives |
CA335,840A CA1131655A (en) | 1978-09-20 | 1979-09-18 | 2,3-dicyano-hydroquinone derivatives |
CH845579A CH642345A5 (en) | 1978-09-20 | 1979-09-19 | 2,3-DICYANO-HYDROCHINONE DERIVATIVES. |
DD79215670A DD146187A5 (en) | 1978-09-20 | 1979-09-20 | PROCESS FOR THE PREPARATION OF 2-CHLORO-6-NITROANILINES |
FR7923469A FR2436777A1 (en) | 1978-09-20 | 1979-09-20 | DERIVATIVE OF 2,3-DICYANO-HYDROQUINONE AND THEIR APPLICATION TO LIQUIDS |
GB7932598A GB2035303B (en) | 1978-09-20 | 1979-09-20 | 2,3-dicyano-hydroquinone derivatives |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11559178A JPS5543016A (en) | 1978-09-20 | 1978-09-20 | Dicyanohydroquinonecyclohexanecarboxylic ester |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5543016A true JPS5543016A (en) | 1980-03-26 |
JPS6126898B2 JPS6126898B2 (en) | 1986-06-23 |
Family
ID=14666385
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP11559178A Granted JPS5543016A (en) | 1978-09-20 | 1978-09-20 | Dicyanohydroquinonecyclohexanecarboxylic ester |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5543016A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH01242618A (en) * | 1988-03-24 | 1989-09-27 | Polyplastics Co | Improved polyester resin, preparation thereof and molded item obtained therefrom |
CN117105817A (en) * | 2023-10-25 | 2023-11-24 | 山东佰隆医药有限公司 | Synthesis method of 2, 3-dicyanohydroquinone |
-
1978
- 1978-09-20 JP JP11559178A patent/JPS5543016A/en active Granted
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH01242618A (en) * | 1988-03-24 | 1989-09-27 | Polyplastics Co | Improved polyester resin, preparation thereof and molded item obtained therefrom |
CN117105817A (en) * | 2023-10-25 | 2023-11-24 | 山东佰隆医药有限公司 | Synthesis method of 2, 3-dicyanohydroquinone |
CN117105817B (en) * | 2023-10-25 | 2023-12-26 | 山东佰隆医药有限公司 | Synthesis method of 2, 3-dicyanohydroquinone |
Also Published As
Publication number | Publication date |
---|---|
JPS6126898B2 (en) | 1986-06-23 |
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