JPS5463085A - Preparation of malonic acid derivative - Google Patents
Preparation of malonic acid derivativeInfo
- Publication number
- JPS5463085A JPS5463085A JP12944477A JP12944477A JPS5463085A JP S5463085 A JPS5463085 A JP S5463085A JP 12944477 A JP12944477 A JP 12944477A JP 12944477 A JP12944477 A JP 12944477A JP S5463085 A JPS5463085 A JP S5463085A
- Authority
- JP
- Japan
- Prior art keywords
- preparation
- acid derivative
- cis
- malonic acid
- reacting
- 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
Landscapes
- Heterocyclic Compounds Containing Sulfur Atoms (AREA)
- Agricultural Chemicals And Associated Chemicals (AREA)
Abstract
PURPOSE: To prepare the tile compound easily in high yield, by reacting dialkoxycarbonyl ketene mercaptal dialkali salt with cis-1,2-dihaloethylene in a polar aprotic solvent.
CONSTITUTION: The compound I is prepared by reacting dialkoxycarbonylketene mercaptal dialkali salt II (R, R' is lower alkyl; M is alkali metal) with cis-1,2- dihalo-ethylene III (x is halogen) in a polar aprotic solvent (e.g. dimethylsulfoxide, dimethylformamide, diethylformamide, etc.) at a temperature between room temp. and 100°C (pref. 50-80°C).
USE: Agricultural fungicide and medicine.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12944477A JPS5463085A (en) | 1977-10-28 | 1977-10-28 | Preparation of malonic acid derivative |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12944477A JPS5463085A (en) | 1977-10-28 | 1977-10-28 | Preparation of malonic acid derivative |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5463085A true JPS5463085A (en) | 1979-05-21 |
JPS5426547B2 JPS5426547B2 (en) | 1979-09-04 |
Family
ID=15009613
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP12944477A Granted JPS5463085A (en) | 1977-10-28 | 1977-10-28 | Preparation of malonic acid derivative |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5463085A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5158950A (en) * | 1987-07-01 | 1992-10-27 | Yuhan Corporation, Ltd. | 1,3-dithiol-2-ylidene derivatives and process for the preparation thereof |
-
1977
- 1977-10-28 JP JP12944477A patent/JPS5463085A/en active Granted
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5158950A (en) * | 1987-07-01 | 1992-10-27 | Yuhan Corporation, Ltd. | 1,3-dithiol-2-ylidene derivatives and process for the preparation thereof |
Also Published As
Publication number | Publication date |
---|---|
JPS5426547B2 (en) | 1979-09-04 |
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