JPS5569528A - Preparation of hydroquinone - Google Patents
Preparation of hydroquinoneInfo
- Publication number
- JPS5569528A JPS5569528A JP14043078A JP14043078A JPS5569528A JP S5569528 A JPS5569528 A JP S5569528A JP 14043078 A JP14043078 A JP 14043078A JP 14043078 A JP14043078 A JP 14043078A JP S5569528 A JPS5569528 A JP S5569528A
- Authority
- JP
- Japan
- Prior art keywords
- layer
- solvent
- strong acid
- hydroquinone
- water layer
- 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
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
PURPOSE: To prepare highly pure hydroquinone in high yield, by separating the reaction mixture prepared by oxidizing p-isopropenylphenol with an oxidizing agent in a solvent in the presence of a strong acid into a water layer and a solvent layer, extracting the water layer with the same solvent as the reaction medium, and recycling the layer as the strong acid.
CONSTITUTION: p-Isopropenylphenol is oxidized with H2O2 or an organic peroxide, e.g. compounds expressed by the formula (R1WR3 are alkyl or aryl), etc., in a polar solvent having low water-solubility and a high boiling point, e.g. octanol, etc., in the presence of a strong acid. The reaction mixture is separated into a water layer and a solvent layer, and hydroquinone is obtained from the latter layer. The water layer is extracted with the same solvent as the reaction medium to eliminate the organic materials, e.g. hydroquinone, etc., existing in the water layer, and thereafter recycled as a part or the whole of the strong acid used in the oxidation reaction.
USE: A photographic developer, an antioxidant for rubbers and a polymerization inhibitor.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14043078A JPS5569528A (en) | 1978-11-16 | 1978-11-16 | Preparation of hydroquinone |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14043078A JPS5569528A (en) | 1978-11-16 | 1978-11-16 | Preparation of hydroquinone |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5569528A true JPS5569528A (en) | 1980-05-26 |
Family
ID=15268491
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP14043078A Pending JPS5569528A (en) | 1978-11-16 | 1978-11-16 | Preparation of hydroquinone |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5569528A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5030767A (en) * | 1988-02-04 | 1991-07-09 | Mitsui Petrochemical Industries, Ltd. | 3-(2-hydroperoxy-2-propyl)phenol and method of producing resorcinol using the same |
WO2006038893A1 (en) * | 2004-10-06 | 2006-04-13 | Agency For Science, Technology And Research | Oxidation of phenolic compound with hydrogen peroxide generated in the presence of the phenolic compound |
-
1978
- 1978-11-16 JP JP14043078A patent/JPS5569528A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5030767A (en) * | 1988-02-04 | 1991-07-09 | Mitsui Petrochemical Industries, Ltd. | 3-(2-hydroperoxy-2-propyl)phenol and method of producing resorcinol using the same |
WO2006038893A1 (en) * | 2004-10-06 | 2006-04-13 | Agency For Science, Technology And Research | Oxidation of phenolic compound with hydrogen peroxide generated in the presence of the phenolic compound |
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