JPS57134581A - Production of 1, 4-naphthoquinone derivative - Google Patents
Production of 1, 4-naphthoquinone derivativeInfo
- Publication number
- JPS57134581A JPS57134581A JP56019034A JP1903481A JPS57134581A JP S57134581 A JPS57134581 A JP S57134581A JP 56019034 A JP56019034 A JP 56019034A JP 1903481 A JP1903481 A JP 1903481A JP S57134581 A JPS57134581 A JP S57134581A
- Authority
- JP
- Japan
- Prior art keywords
- methyl
- naphthoquinone
- org
- solvent
- supporting electrolyte
- 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
- Electrolytic Production Of Non-Metals, Compounds, Apparatuses Therefor (AREA)
Abstract
PURPOSE: To avert pollution problems with simple operation and to produce 1, 4-naphthoquinone derivatives efficiently by electrolytically oxidizing 2-methyl- 5, 8-dihydro-1, 4-naphthohydroquinone in an org. solvent contg. supporting electrolyte.
CONSTITUTION: The 2-methyl-5, 8-dihydro-1, 4-naphthoquinone expressed by the formula II is electrolytically oxidized in the presence of 0.1W30wt% supporting electrolyte in an org. solvent. The electrolytic oxidation of this case is accomplished by maintaining current density at 100W0.5mA/cm2 and -10W80°C temps. Further, for example, perchloric acid, alkali metallic salt of perchloric acid, etc. are more preferably used for the above-mentioned supporting electrolyte. Alcohols such as methanols, carboxylic acids such as formic acids, etc. are used as the org. solvent. By this electrolytic oxidation, the 2-methyl-1, 4-naphthoquinone or 2-methyl-5, 8-dihydronaphthoquinone is obtained efficiently, post-treatments are easy, and there is no need for treatment of waste.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56019034A JPS57134581A (en) | 1981-02-13 | 1981-02-13 | Production of 1, 4-naphthoquinone derivative |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56019034A JPS57134581A (en) | 1981-02-13 | 1981-02-13 | Production of 1, 4-naphthoquinone derivative |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS57134581A true JPS57134581A (en) | 1982-08-19 |
Family
ID=11988152
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP56019034A Pending JPS57134581A (en) | 1981-02-13 | 1981-02-13 | Production of 1, 4-naphthoquinone derivative |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS57134581A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2637916A1 (en) * | 1988-10-14 | 1990-04-20 | Rhone Poulenc Chimie | PROCESS FOR THE PREPARATION OF QUINONE FROM HYDROQUINONE BY ELECTROLYSIS |
| JPH02166489A (en) * | 1988-12-20 | 1990-06-27 | Canon Inc | Fixing device |
| CN1038604C (en) * | 1992-10-07 | 1998-06-03 | 冶金工业部鞍山热能研究所 | Method for producing vitamine K3 and electrolytic apparatus |
| CN111893506A (en) * | 2020-07-31 | 2020-11-06 | 万华化学集团股份有限公司 | Preparation method of menadione |
-
1981
- 1981-02-13 JP JP56019034A patent/JPS57134581A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2637916A1 (en) * | 1988-10-14 | 1990-04-20 | Rhone Poulenc Chimie | PROCESS FOR THE PREPARATION OF QUINONE FROM HYDROQUINONE BY ELECTROLYSIS |
| US4963234A (en) * | 1988-10-14 | 1990-10-16 | Rhone-Poulenc Chimie | Electrolytic production of quinone from hydroquinone |
| JPH02166489A (en) * | 1988-12-20 | 1990-06-27 | Canon Inc | Fixing device |
| CN1038604C (en) * | 1992-10-07 | 1998-06-03 | 冶金工业部鞍山热能研究所 | Method for producing vitamine K3 and electrolytic apparatus |
| CN111893506A (en) * | 2020-07-31 | 2020-11-06 | 万华化学集团股份有限公司 | Preparation method of menadione |
| CN111893506B (en) * | 2020-07-31 | 2022-01-07 | 万华化学集团股份有限公司 | Preparation method of menadione |
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