JPS6475440A - Production of 4,4'-dihydroxybiphenyl - Google Patents
Production of 4,4'-dihydroxybiphenylInfo
- Publication number
- JPS6475440A JPS6475440A JP23149187A JP23149187A JPS6475440A JP S6475440 A JPS6475440 A JP S6475440A JP 23149187 A JP23149187 A JP 23149187A JP 23149187 A JP23149187 A JP 23149187A JP S6475440 A JPS6475440 A JP S6475440A
- Authority
- JP
- Japan
- Prior art keywords
- acidolysis
- dihydroxybiphenyl
- dihydroperoxides
- diisopropylbiphenyl
- product
- 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
PURPOSE:To obtain the title compound of high purity in high yield, which is used as a starting substance for heat-resistant synthetic resins and synthetic fibers, by oxidizing 4,4'-diisopropylbiphenyl with molecular oxygen and subjecting the product, 4,4'-diisopropylbiphenylhydroperoxide, to acidolysis. CONSTITUTION:4,4'-Diisopropylbiphenyl is oxidized with molecular oxygen, preferably in the presence of a base, to form 4, 4'-diisopropylbiphenyldihy droperoxide and the product is subjected acidolysis, preferably in the presence of an acidic catalyst to give 4,4'-dihydroxybiphenyl. On the acidolysis, hydrogen peroxide is allowed to coexist simultaneously to oxidize carbinols as by-products into dihydroperoxides, then these dihydroperoxides are acidolyzed simultaneously with the acidic catalyst to increase the yield of 4,4'-dihydroxybiphenyl.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP23149187A JPH07108871B2 (en) | 1987-09-16 | 1987-09-16 | Method for producing 4,4'-dihydroxybiphenyl |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP23149187A JPH07108871B2 (en) | 1987-09-16 | 1987-09-16 | Method for producing 4,4'-dihydroxybiphenyl |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS6475440A true JPS6475440A (en) | 1989-03-22 |
JPH07108871B2 JPH07108871B2 (en) | 1995-11-22 |
Family
ID=16924322
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP23149187A Expired - Fee Related JPH07108871B2 (en) | 1987-09-16 | 1987-09-16 | Method for producing 4,4'-dihydroxybiphenyl |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH07108871B2 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0394813A2 (en) * | 1989-04-26 | 1990-10-31 | The Dow Chemical Company | Melt processable thermotropic aromatic copolyesters and process for preparing same |
JP2006076998A (en) * | 2004-08-11 | 2006-03-23 | Honshu Chem Ind Co Ltd | Preparation method of 3,3'-dialkyl-4,4'-biphenol |
US8287480B2 (en) | 2007-06-29 | 2012-10-16 | Jms Co., Ltd. | Hemodialysis apparatus |
-
1987
- 1987-09-16 JP JP23149187A patent/JPH07108871B2/en not_active Expired - Fee Related
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0394813A2 (en) * | 1989-04-26 | 1990-10-31 | The Dow Chemical Company | Melt processable thermotropic aromatic copolyesters and process for preparing same |
EP0394813A3 (en) * | 1989-04-26 | 1992-04-08 | The Dow Chemical Company | Melt processable thermotropic aromatic copolyesters and process for preparing same |
JP2006076998A (en) * | 2004-08-11 | 2006-03-23 | Honshu Chem Ind Co Ltd | Preparation method of 3,3'-dialkyl-4,4'-biphenol |
US8287480B2 (en) | 2007-06-29 | 2012-10-16 | Jms Co., Ltd. | Hemodialysis apparatus |
Also Published As
Publication number | Publication date |
---|---|
JPH07108871B2 (en) | 1995-11-22 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
LAPS | Cancellation because of no payment of annual fees |