JPS5683464A - Preparation of 2-alkoxyimino-3-keto-acid ester - Google Patents

Preparation of 2-alkoxyimino-3-keto-acid ester

Info

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
Application number
JP16127579A
Other languages
Japanese (ja)
Inventor
Mitsukuni Ayabe
Iwao Kobayashi
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Denka Co Ltd
Original Assignee
Denki Kagaku Kogyo KK
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Denki Kagaku Kogyo KK filed Critical Denki Kagaku Kogyo KK
Priority to JP16127579A priority Critical patent/JPS5683464A/en
Publication of JPS5683464A publication Critical patent/JPS5683464A/en
Pending legal-status Critical Current

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  • 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
JP16127579A 1979-12-12 1979-12-12 Preparation of 2-alkoxyimino-3-keto-acid ester Pending JPS5683464A (en)

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)

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