JPS5559124A - Preparation of hydroquinone - Google Patents
Preparation of hydroquinoneInfo
- Publication number
- JPS5559124A JPS5559124A JP13171078A JP13171078A JPS5559124A JP S5559124 A JPS5559124 A JP S5559124A JP 13171078 A JP13171078 A JP 13171078A JP 13171078 A JP13171078 A JP 13171078A JP S5559124 A JPS5559124 A JP S5559124A
- Authority
- JP
- Japan
- Prior art keywords
- solution
- temperature
- reaction system
- oxidizing agent
- controlling method
- 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 obtain the title compound in a stable yield, by oxidation of a p-isopropylphenol solution mixed with a strong acid and an oxidizing agent in a reaction system kept at a specific temperature or higher, continuously at a temperature in a specific range and according to an easy controlling method.
CONSTITUTION: A solution of p-isopropenylphenol (P), a strong acid, e.g. sulfuric acid, and hydrogen peroxide or organic peroxide as an oxidizing agent are mixed in a reaction system at 25°C or higher, and P is oxidized at 28W50°C, preferably at 30W45°C, to obtain hydroquinone by a stable and safe temperature controlling method. A high-boiling slightly water-soluble polar solvent, e.g. heptyl alcohol, is used for forming the solution. An organic peroxide is a compound of the formula (R1WR3 are alkyl or aryl).
USE: A photographic developer, an antioxidant for rubber, and a polymerization inhibitor.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13171078A JPS5559124A (en) | 1978-10-27 | 1978-10-27 | Preparation of hydroquinone |
US06/086,666 US4258219A (en) | 1978-10-27 | 1979-10-19 | Process for producing hydroquinone |
DE19792943428 DE2943428A1 (en) | 1978-10-27 | 1979-10-26 | METHOD FOR PRODUCING HYDROQUINONE |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13171078A JPS5559124A (en) | 1978-10-27 | 1978-10-27 | Preparation of hydroquinone |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5559124A true JPS5559124A (en) | 1980-05-02 |
Family
ID=15064379
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP13171078A Pending JPS5559124A (en) | 1978-10-27 | 1978-10-27 | Preparation of hydroquinone |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5559124A (en) |
-
1978
- 1978-10-27 JP JP13171078A patent/JPS5559124A/en active Pending
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