JPS55136251A - Novel keto ester compound - Google Patents
Novel keto ester compoundInfo
- Publication number
- JPS55136251A JPS55136251A JP4462979A JP4462979A JPS55136251A JP S55136251 A JPS55136251 A JP S55136251A JP 4462979 A JP4462979 A JP 4462979A JP 4462979 A JP4462979 A JP 4462979A JP S55136251 A JPS55136251 A JP S55136251A
- Authority
- JP
- Japan
- Prior art keywords
- derivative
- give
- treated
- ester compound
- keto ester
- 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
Abstract
NEW MATERIAL:A β-keto ester compound of the formula (R1 is H, halogen, or alkyl group; n and m are 1 or 2).
EXAMPLE: Ethyl p-hydroxybenzoylacetate.
USE: An intermediate for photographic yellow and pyrazolone magenta couplers, and antihalation and irradiation prevention dyes.
PROCESS: A hydroxybenzoic acid derivative is treated with acetic anhydride to give acetoxybenzoic acid, which is treated with phosphorus pentachloride to give an acetoxybenzoyl chloride derivative. The resulting derivative is reacted with an acetoacetic ester to form an alkyl acetoxybenzoyl-acetoacetate derivative, which is then reacted with acetic acid to afford an acetoxybenzoylacetic ester derivative. The resulting derivative is treated with an aqueous alkali to give the compound of the formula.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4462979A JPS55136251A (en) | 1979-04-12 | 1979-04-12 | Novel keto ester compound |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4462979A JPS55136251A (en) | 1979-04-12 | 1979-04-12 | Novel keto ester compound |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS55136251A true JPS55136251A (en) | 1980-10-23 |
Family
ID=12696706
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP4462979A Pending JPS55136251A (en) | 1979-04-12 | 1979-04-12 | Novel keto ester compound |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS55136251A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104016865A (en) * | 2014-01-14 | 2014-09-03 | 杭州福斯特药业有限公司 | Method for synthesizing phenolic hydroxyl substituted benzoyl ethyl acetate |
-
1979
- 1979-04-12 JP JP4462979A patent/JPS55136251A/en active Pending
Non-Patent Citations (1)
Title |
---|
J. HETEROCYCL. CHEM.=1969 * |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104016865A (en) * | 2014-01-14 | 2014-09-03 | 杭州福斯特药业有限公司 | Method for synthesizing phenolic hydroxyl substituted benzoyl ethyl acetate |
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