JPS577446A - Production of succinosuccinic dialkyl ester - Google Patents
Production of succinosuccinic dialkyl esterInfo
- Publication number
- JPS577446A JPS577446A JP8089080A JP8089080A JPS577446A JP S577446 A JPS577446 A JP S577446A JP 8089080 A JP8089080 A JP 8089080A JP 8089080 A JP8089080 A JP 8089080A JP S577446 A JPS577446 A JP S577446A
- Authority
- JP
- Japan
- Prior art keywords
- dialkyl ester
- succinosuccinic
- alkali metal
- reaction
- neutralized
- 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: A mixture resulting from the self-condensation reaction of a succinic dialkyl ester is combined with an alkali metal bicarbonate and neutralized to produce the titled compound used as a starting material of quinacridone pigments with no side reaction in high yield.
CONSTITUTION: The self-condensation reaction of succinic dialkyl ester such as dimethyl succinate is effected in an organic solvent such as benzene or hexane in the presence of an alkali metal alcoholate such as methylate and the reaction mixture is pre-treated with an alkali metal bicarbonate. The reaction mixture is stood for cooling and the salt of succinosuccinic dialkyl ester is collected by filtration. The salt is neutralized by dropping it into an acidic aqueous solution to produce the objective succinosuccinic dialkyl ester, i.e., cyclohexa-1,4-diene-2,5-diol-1,4-dicarboxylic dialkyl ester.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8089080A JPS577446A (en) | 1980-06-17 | 1980-06-17 | Production of succinosuccinic dialkyl ester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8089080A JPS577446A (en) | 1980-06-17 | 1980-06-17 | Production of succinosuccinic dialkyl ester |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS577446A true JPS577446A (en) | 1982-01-14 |
Family
ID=13730941
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8089080A Pending JPS577446A (en) | 1980-06-17 | 1980-06-17 | Production of succinosuccinic dialkyl ester |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS577446A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6083574U (en) * | 1983-11-12 | 1985-06-10 | 株式会社 田窪工業所 | water tray on draining shelf |
| JPS62106062A (en) * | 1985-11-01 | 1987-05-16 | Nippon Shokubai Kagaku Kogyo Co Ltd | Production of succinylsuccinic acid diester |
| JPS63219756A (en) * | 1987-03-06 | 1988-09-13 | 大建工業株式会社 | floating floor panel |
| CN108059598A (en) * | 2016-11-08 | 2018-05-22 | 华东理工大学 | The method that polysubstituted alkadienes is prepared by crotonic acid derivates |
-
1980
- 1980-06-17 JP JP8089080A patent/JPS577446A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6083574U (en) * | 1983-11-12 | 1985-06-10 | 株式会社 田窪工業所 | water tray on draining shelf |
| JPS62106062A (en) * | 1985-11-01 | 1987-05-16 | Nippon Shokubai Kagaku Kogyo Co Ltd | Production of succinylsuccinic acid diester |
| JPS63219756A (en) * | 1987-03-06 | 1988-09-13 | 大建工業株式会社 | floating floor panel |
| CN108059598A (en) * | 2016-11-08 | 2018-05-22 | 华东理工大学 | The method that polysubstituted alkadienes is prepared by crotonic acid derivates |
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