JPS5762236A - Novel preparation of 4-hydroxy-2-cyclopentenone - Google Patents
Novel preparation of 4-hydroxy-2-cyclopentenoneInfo
- Publication number
- JPS5762236A JPS5762236A JP55138502A JP13850280A JPS5762236A JP S5762236 A JPS5762236 A JP S5762236A JP 55138502 A JP55138502 A JP 55138502A JP 13850280 A JP13850280 A JP 13850280A JP S5762236 A JPS5762236 A JP S5762236A
- Authority
- JP
- Japan
- Prior art keywords
- solvent
- action
- catalyst
- water
- cyclopentenone
- 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
Landscapes
- Catalysts (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
PURPOSE: To obtain the titled compound useful as an intermediate for agricultural chemical, perfume, and drug from a raw material prepared from naturally occurring substances extremely inexpensively by one step industrially advantageously, by rearranging furfuryl alcohol using a solvent comprising water as a main solvent.
CONSTITUTION: Furfuryl alcohol is rearranged in water alone or mixed solvent comprising water as a main solvent and a small amount of an organis solvent, and, if necessary, in the presence of a catalyst, in a pH of preferably 2W7, especially pH of 3W6.5 at preferably 20W160°C, to give extremely easily 4-hydroxy-2-cyclopentenone useful as an intermediate for prostagladins having smooth muscle contracting action, anti-inflammatory action, gastic juice suppressing action, and hypotensive action. Various kinks of metal salt, organic quaternary ammonium salt, surface active agent, alcohol, etc. may be used as the catalyst, and the addition of the catalyst improves the reaction rate and increases the conversion.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP55138502A JPS5762236A (en) | 1980-10-02 | 1980-10-02 | Novel preparation of 4-hydroxy-2-cyclopentenone |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP55138502A JPS5762236A (en) | 1980-10-02 | 1980-10-02 | Novel preparation of 4-hydroxy-2-cyclopentenone |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5762236A true JPS5762236A (en) | 1982-04-15 |
JPS6257174B2 JPS6257174B2 (en) | 1987-11-30 |
Family
ID=15223616
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP55138502A Granted JPS5762236A (en) | 1980-10-02 | 1980-10-02 | Novel preparation of 4-hydroxy-2-cyclopentenone |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5762236A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4729953A (en) * | 1983-02-03 | 1988-03-08 | Sumitomo Chemical Company, Limited | Optically active 4-hydroxy-2-cyclopentenones, and their production |
-
1980
- 1980-10-02 JP JP55138502A patent/JPS5762236A/en active Granted
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4729953A (en) * | 1983-02-03 | 1988-03-08 | Sumitomo Chemical Company, Limited | Optically active 4-hydroxy-2-cyclopentenones, and their production |
Also Published As
Publication number | Publication date |
---|---|
JPS6257174B2 (en) | 1987-11-30 |
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