JPS56100780A - Thiophene compound and its preparation - Google Patents
Thiophene compound and its preparationInfo
- Publication number
- JPS56100780A JPS56100780A JP357180A JP357180A JPS56100780A JP S56100780 A JPS56100780 A JP S56100780A JP 357180 A JP357180 A JP 357180A JP 357180 A JP357180 A JP 357180A JP S56100780 A JPS56100780 A JP S56100780A
- Authority
- JP
- Japan
- Prior art keywords
- compound
- formula
- preparation
- effected
- added
- 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:Compounds of formula I (X is H, lower alkyl, carbo-lower- alkoxymethyl).
EXAMPLE: 2-Amino-3-nitrothiophene.
USE: A starting material of dyes and agricultural chemicals.
PREPARATION: Nitroacetonitrile and a compound of SHCH2COX (e.g., α-mercaptoacetaldehyde) are added to a mixed solvent composed of ethanol and water and the condensation reaction is effected by dropping a basic substance such as triethylamine to obtain a thiophene compound of formula I. Further, the compound is dissolved in pyridine and acetyl chloride or the like is added thereto to effect the acylation of the amino group. Then, the nitration is effected with a mixed acid of nitric and sulfuric acids. Finally, the acyl group is hydrolyzed to give the compound of formula II, too.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP357180A JPS56100780A (en) | 1980-01-18 | 1980-01-18 | Thiophene compound and its preparation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP357180A JPS56100780A (en) | 1980-01-18 | 1980-01-18 | Thiophene compound and its preparation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS56100780A true JPS56100780A (en) | 1981-08-12 |
Family
ID=11561124
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP357180A Pending JPS56100780A (en) | 1980-01-18 | 1980-01-18 | Thiophene compound and its preparation |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS56100780A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115368339A (en) * | 2022-09-05 | 2022-11-22 | 浙江迪邦化工有限公司 | High-yield continuous synthesis method of 2-acetamido-3, 5-dinitrothiophene |
-
1980
- 1980-01-18 JP JP357180A patent/JPS56100780A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115368339A (en) * | 2022-09-05 | 2022-11-22 | 浙江迪邦化工有限公司 | High-yield continuous synthesis method of 2-acetamido-3, 5-dinitrothiophene |
| CN115368339B (en) * | 2022-09-05 | 2024-04-05 | 浙江迪邦化工有限公司 | High-yield continuous synthesis method of 2-acetamido-3, 5-dinitrothiophene |
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