JPS6479136A - Production of (4-hydroxyphenyl)-cyclohexane carboxylic acids - Google Patents
Production of (4-hydroxyphenyl)-cyclohexane carboxylic acidsInfo
- Publication number
- JPS6479136A JPS6479136A JP62236145A JP23614587A JPS6479136A JP S6479136 A JPS6479136 A JP S6479136A JP 62236145 A JP62236145 A JP 62236145A JP 23614587 A JP23614587 A JP 23614587A JP S6479136 A JPS6479136 A JP S6479136A
- Authority
- JP
- Japan
- Prior art keywords
- hydroxyphenyl
- carboxylic acids
- formula
- expressed
- novel
- 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
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/50—Improvements relating to the production of bulk chemicals
- Y02P20/52—Improvements relating to the production of bulk chemicals using catalysts, e.g. selective catalysts
Landscapes
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
Abstract
PURPOSE:To readily obtain the titled compound useful as a monomer for polyester such as polymer liquid crystal in high yield and purity and one process, by subjecting novel (4-hydroxyphenyl)-cyclohexene carboxylic acids to reduction reaction as a raw material. CONSTITUTION:Cyclohexanone carboxylic acids expressed by formula I (R is H or lower alkyl) is reacted with phenol in the presence of an acid catalyst to give a bis(4-hydroxyphenyl)-cyclohexane carboxylic acid expressed by formula II which is a novel compound, which is then subjected to heat decomposition reaction in the presence of a dehydrogenating catalyst and hydrogen acceptor to afford (4-hydroxyphenyl)-cyclohexanone carboxylic acids expressed by formula III which is a novel compound, which is then subjected to reduction reaction such as hydrogen reduction using H2 in the presence of a hydrogenation catalyst such as Pd/C in a solvent such as methanol at 0-100 deg.C and <=5kg/cm<2> H2 pressure to provide the aimed compound expressed by formula IV.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62236145A JP2523140B2 (en) | 1987-09-22 | 1987-09-22 | Method for producing (4-hydroxyphenyl) -cyclohexanecarboxylic acid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62236145A JP2523140B2 (en) | 1987-09-22 | 1987-09-22 | Method for producing (4-hydroxyphenyl) -cyclohexanecarboxylic acid |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6479136A true JPS6479136A (en) | 1989-03-24 |
| JP2523140B2 JP2523140B2 (en) | 1996-08-07 |
Family
ID=16996425
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62236145A Expired - Fee Related JP2523140B2 (en) | 1987-09-22 | 1987-09-22 | Method for producing (4-hydroxyphenyl) -cyclohexanecarboxylic acid |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2523140B2 (en) |
-
1987
- 1987-09-22 JP JP62236145A patent/JP2523140B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JP2523140B2 (en) | 1996-08-07 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |