JPS5677237A - 2-substituted-hydroxycyclopentenone and its preparation - Google Patents
2-substituted-hydroxycyclopentenone and its preparationInfo
- Publication number
- JPS5677237A JPS5677237A JP15300579A JP15300579A JPS5677237A JP S5677237 A JPS5677237 A JP S5677237A JP 15300579 A JP15300579 A JP 15300579A JP 15300579 A JP15300579 A JP 15300579A JP S5677237 A JPS5677237 A JP S5677237A
- Authority
- JP
- Japan
- Prior art keywords
- bond
- substituted
- formula
- except
- expressed
- 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
- Fats And Perfumes (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
NEW MATERIAL:A 2-substituted-hydroxycyclopentenone expressed by formula I [R is 1W10C alkyl, except a pentyl group, 2W10C alkenyl except 2-pentenyl, 2W 10C alkynyl except 2-pentynyl or 7W8C aralkyl; group -OH is in the 3- or 4- position and when in the 4- position, C(4)-C(5) bond is a single bond and C(2)=C(3) bond is a double bond, and when in the 3- position, C(2)-C(3) bond is a single bond and C(4)=C(5) is a double bond].
EXAMPLE: 2-Methyl-3-hydroxy-4-cyclopenten-1-one.
USE: A synthetic intermediate of a medicine, agricultural chemical or perfume, and a base for the preparation of a perfume due to its own ordor.
PROCESS: A 2-substituted-3-hydroxy-4-cyclopenten-1-one expressed by formula II is isomerized in the presence of a basic isomerizing agent, to give the compound expressed by formula I.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15300579A JPS5677237A (en) | 1979-11-28 | 1979-11-28 | 2-substituted-hydroxycyclopentenone and its preparation |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15300579A JPS5677237A (en) | 1979-11-28 | 1979-11-28 | 2-substituted-hydroxycyclopentenone and its preparation |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP9221380A Division JPS5677238A (en) | 1980-07-08 | 1980-07-08 | 2-substituted-hydroxycyclopentenone and its preparation |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5677237A true JPS5677237A (en) | 1981-06-25 |
JPS6248656B2 JPS6248656B2 (en) | 1987-10-15 |
Family
ID=15552861
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP15300579A Granted JPS5677237A (en) | 1979-11-28 | 1979-11-28 | 2-substituted-hydroxycyclopentenone and its preparation |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5677237A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5738741A (en) * | 1980-08-20 | 1982-03-03 | Sumitomo Chem Co Ltd | Preparation of hydroxycyclopentenones |
JPS6181797A (en) * | 1984-09-28 | 1986-04-25 | Sumitomo Chem Co Ltd | Optically active cyclopentenone and its production |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS54154735A (en) * | 1978-05-24 | 1979-12-06 | Teijin Ltd | Production of 4-hydroxy-2-cycloalkenone |
JPS55143925A (en) * | 1979-04-24 | 1980-11-10 | Sumitomo Chem Co Ltd | Preparation of cyclopentenolone |
-
1979
- 1979-11-28 JP JP15300579A patent/JPS5677237A/en active Granted
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS54154735A (en) * | 1978-05-24 | 1979-12-06 | Teijin Ltd | Production of 4-hydroxy-2-cycloalkenone |
JPS55143925A (en) * | 1979-04-24 | 1980-11-10 | Sumitomo Chem Co Ltd | Preparation of cyclopentenolone |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5738741A (en) * | 1980-08-20 | 1982-03-03 | Sumitomo Chem Co Ltd | Preparation of hydroxycyclopentenones |
JPS6258342B2 (en) * | 1980-08-20 | 1987-12-05 | Sumitomo Chemical Co | |
JPS6181797A (en) * | 1984-09-28 | 1986-04-25 | Sumitomo Chem Co Ltd | Optically active cyclopentenone and its production |
Also Published As
Publication number | Publication date |
---|---|
JPS6248656B2 (en) | 1987-10-15 |
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