JPS6463550A - Production of 2-cyclopentenone derivative - Google Patents
Production of 2-cyclopentenone derivativeInfo
- Publication number
- JPS6463550A JPS6463550A JP63062952A JP6295288A JPS6463550A JP S6463550 A JPS6463550 A JP S6463550A JP 63062952 A JP63062952 A JP 63062952A JP 6295288 A JP6295288 A JP 6295288A JP S6463550 A JPS6463550 A JP S6463550A
- Authority
- JP
- Japan
- Prior art keywords
- carboxylic acid
- aliphatic carboxylic
- hydroxycyclopentenones
- mixture
- 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
Landscapes
- Catalysts (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
Abstract
PURPOSE:To easily obtain the titled compound useful as a synthetic intermediate for agricultural chemicals and pharmaceuticals, especially as an intermediate for prostaglandin in high yield, by reacting a mixture of hydroxycyclopentenones with an aliphatic carboxylic acid, its acid anhydride and metal salt. CONSTITUTION:The objective compound of formula III (R1 is H or 1-4C alkyl) can be produced by reacting (A) a mixture of hydroxycyclopentenones of formula I and formula II (R is H or 1-6C alkyl; n is 4-8) with (B) a <=5C aliphatic carboxylic acid (e.g. acetic acid), its acid anhydride and its metal salt (e.g. an aliphatic carboxylic acid lithium salt) in a solvent (e.g. THF) at 0-150 deg.C for 0.5-10hr. The amounts of the aliphatic carboxylic acid and the metal salt are >=1 times equivalent and 0.01-5 times equivalent based on the mixture of hydroxycyclopentenones, respectively and the amount of the aliphatic carboxylic acid anhydride is >=1 times equivalent based on the compound of formula II in the mixture of hydroxycyclopentenones.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP63062952A JP2615780B2 (en) | 1987-03-30 | 1988-03-15 | Method for producing 2-cyclopentenone derivative |
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62-79297 | 1987-03-30 | ||
JP7929787 | 1987-03-30 | ||
JP63062952A JP2615780B2 (en) | 1987-03-30 | 1988-03-15 | Method for producing 2-cyclopentenone derivative |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS6463550A true JPS6463550A (en) | 1989-03-09 |
JP2615780B2 JP2615780B2 (en) | 1997-06-04 |
Family
ID=26404013
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP63062952A Expired - Fee Related JP2615780B2 (en) | 1987-03-30 | 1988-03-15 | Method for producing 2-cyclopentenone derivative |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP2615780B2 (en) |
-
1988
- 1988-03-15 JP JP63062952A patent/JP2615780B2/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
JP2615780B2 (en) | 1997-06-04 |
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Legal Events
Date | Code | Title | Description |
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S531 | Written request for registration of change of domicile |
Free format text: JAPANESE INTERMEDIATE CODE: R313531 |
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S533 | Written request for registration of change of name |
Free format text: JAPANESE INTERMEDIATE CODE: R313533 |
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R370 | Written measure of declining of transfer procedure |
Free format text: JAPANESE INTERMEDIATE CODE: R370 |
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S531 | Written request for registration of change of domicile |
Free format text: JAPANESE INTERMEDIATE CODE: R313531 |
|
S533 | Written request for registration of change of name |
Free format text: JAPANESE INTERMEDIATE CODE: R313533 |
|
R350 | Written notification of registration of transfer |
Free format text: JAPANESE INTERMEDIATE CODE: R350 |
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LAPS | Cancellation because of no payment of annual fees |