JPS5683464A - Preparation of 2-alkoxyimino-3-keto-acid ester - Google Patents
Preparation of 2-alkoxyimino-3-keto-acid esterInfo
- Publication number
- JPS5683464A JPS5683464A JP16127579A JP16127579A JPS5683464A JP S5683464 A JPS5683464 A JP S5683464A JP 16127579 A JP16127579 A JP 16127579A JP 16127579 A JP16127579 A JP 16127579A JP S5683464 A JPS5683464 A JP S5683464A
- Authority
- JP
- Japan
- Prior art keywords
- keto
- acid ester
- acetonitrile
- solvent
- hydroxyimino
- 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
Landscapes
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
PURPOSE: To obtain the titled compound useful as an intermediate for medicines and agricultural chemicals in high yield, by reacting a 2-hydroxyimino-3-keto-acid ester with a dialkyl sulfate in the presence of a basic substance in acetonitrile as a solvent.
CONSTITUTION: A 2-hydroxyimino-3-keto-acid ester of formula I (R1 is alkyl, etc.; R2 is lower alkyl) is reacted with a dialkyl sulfate, e.g. dimethyl sulfate, in the presence of a basic substance, e.g. a carbonate, in acetonitrile as a solvent at 15W 50°C for 5minW1hr. After the reaction, the resultant reaction solution is made weakly acidic, and the organic layer is concentrated to give the titled compound of formula II (R3 is lower alkyl).
EFFECT: The reaction proceeds under mild conditions by using acetonitrile as the solvent.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16127579A JPS5683464A (en) | 1979-12-12 | 1979-12-12 | Preparation of 2-alkoxyimino-3-keto-acid ester |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16127579A JPS5683464A (en) | 1979-12-12 | 1979-12-12 | Preparation of 2-alkoxyimino-3-keto-acid ester |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5683464A true JPS5683464A (en) | 1981-07-08 |
Family
ID=15732000
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP16127579A Pending JPS5683464A (en) | 1979-12-12 | 1979-12-12 | Preparation of 2-alkoxyimino-3-keto-acid ester |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5683464A (en) |
-
1979
- 1979-12-12 JP JP16127579A patent/JPS5683464A/en active Pending
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