JPS5799546A - Preparation of jasmone - Google Patents
Preparation of jasmoneInfo
- Publication number
- JPS5799546A JPS5799546A JP55177705A JP17770580A JPS5799546A JP S5799546 A JPS5799546 A JP S5799546A JP 55177705 A JP55177705 A JP 55177705A JP 17770580 A JP17770580 A JP 17770580A JP S5799546 A JPS5799546 A JP S5799546A
- Authority
- JP
- Japan
- Prior art keywords
- water
- compound
- give
- cyclopentenone
- formula
- 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
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/50—Improvements relating to the production of bulk chemicals
- Y02P20/52—Improvements relating to the production of bulk chemicals using catalysts, e.g. selective catalysts
Abstract
PURPOSE: To obtain the titled substance at a low cost in high purity and yield, by rearranging a furan derivative in a solvent, e.g. water or water-dihydric alcohol to give a cyclopentenone, isomerizing the cyclopentenone, and reducing the resultant 4-hydroxy cyclopentenone.
CONSTITUTION: A furan derivative of formulaI(R1 is H, alkyl or alkenyl; R3 is alkyl, alkenyl, alkynyl, cycloalkyl, aryl, thienyl or aralkyl) is rearranged in a solvent, e.g. water or water-dihydric alcohol, in the presence or absence of a catalyst, e.g. various metallic salts, to give a compound of formula II, which is then adjusted to a pH of preferably 4.5W13 and then rearranged to afford a compound of formula III. The resultant compound of formula III is then reduced with a metal- acid, e.g. zinc, iron, etc. -dilute hydrochloric acid or formic acid, to give a compound of formula IV (R2 is R3 which is not alkynyl).
USE: A high-class perfume.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP55177705A JPS5799546A (en) | 1980-12-15 | 1980-12-15 | Preparation of jasmone |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP55177705A JPS5799546A (en) | 1980-12-15 | 1980-12-15 | Preparation of jasmone |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5799546A true JPS5799546A (en) | 1982-06-21 |
| JPS6254413B2 JPS6254413B2 (en) | 1987-11-14 |
Family
ID=16035657
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP55177705A Granted JPS5799546A (en) | 1980-12-15 | 1980-12-15 | Preparation of jasmone |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5799546A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2535314A1 (en) * | 1982-10-27 | 1984-05-04 | Sumitomo Chemical Co | PROCESS FOR THE PREPARATION OF 2-CYCLOPENTENONE DERIVATIVES |
| JPS6181797A (en) * | 1984-09-28 | 1986-04-25 | Sumitomo Chem Co Ltd | Optically active cyclopentenone and its production |
| US4585582A (en) * | 1985-03-08 | 1986-04-29 | International Flavors & Fragrances Inc. | Perfumery uses of 2-n-pentyl-2-cyclohexen-1-one |
-
1980
- 1980-12-15 JP JP55177705A patent/JPS5799546A/en active Granted
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2535314A1 (en) * | 1982-10-27 | 1984-05-04 | Sumitomo Chemical Co | PROCESS FOR THE PREPARATION OF 2-CYCLOPENTENONE DERIVATIVES |
| JPS6181797A (en) * | 1984-09-28 | 1986-04-25 | Sumitomo Chem Co Ltd | Optically active cyclopentenone and its production |
| US4585582A (en) * | 1985-03-08 | 1986-04-29 | International Flavors & Fragrances Inc. | Perfumery uses of 2-n-pentyl-2-cyclohexen-1-one |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6254413B2 (en) | 1987-11-14 |
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