JPS562973A - Preparation of aminopyrazine derivative - Google Patents
Preparation of aminopyrazine derivativeInfo
- Publication number
- JPS562973A JPS562973A JP7786579A JP7786579A JPS562973A JP S562973 A JPS562973 A JP S562973A JP 7786579 A JP7786579 A JP 7786579A JP 7786579 A JP7786579 A JP 7786579A JP S562973 A JPS562973 A JP S562973A
- Authority
- JP
- Japan
- Prior art keywords
- formula
- derivative
- dimethylformamide
- give
- chloropyrazine
- 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
Abstract
PURPOSE: The titled compound useful as a herbicide through one-step reaction, by chlorinating a hydroxypyrazine derivative in the presence of dimethylformamide to give a chloropyrazine derivative, an intermediate, followed by aminating the intermediate without its isolation.
CONSTITUTION: A hydroxypyrazine derivative shown by the formula I (R1 is phenyl, furyl, or thienyl) is chlorinated with thionyl chloride in the presence of dimethylformamide preferably 85W130°C to give a chloropyrazine derivative shown by the formula II, Which is not isolated and reacted with an amine shown by the formula III (R2 and R3 are H, lower alkyl, lower alkenyl, lower alkynyl, etc., or R2 and R3 form heterocyclic ring having 3W7 members) under cooling conditions preferably at room or lower temperatures to give a compound shown by the formula IV. An amount of dimethylformamide is preferably 1W5wt% based on the compound shown by the formula I.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7786579A JPS562973A (en) | 1979-06-20 | 1979-06-20 | Preparation of aminopyrazine derivative |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7786579A JPS562973A (en) | 1979-06-20 | 1979-06-20 | Preparation of aminopyrazine derivative |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS562973A true JPS562973A (en) | 1981-01-13 |
JPS6227069B2 JPS6227069B2 (en) | 1987-06-12 |
Family
ID=13645940
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP7786579A Granted JPS562973A (en) | 1979-06-20 | 1979-06-20 | Preparation of aminopyrazine derivative |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS562973A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2017082246A1 (en) * | 2015-11-10 | 2017-05-18 | 国立大学法人九州大学 | Dicyanopyrazine compound, luminescent material, light transmitter using same, and production method for 2,5-dicyano-3,6-dihalogenopyrazine |
-
1979
- 1979-06-20 JP JP7786579A patent/JPS562973A/en active Granted
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2017082246A1 (en) * | 2015-11-10 | 2017-05-18 | 国立大学法人九州大学 | Dicyanopyrazine compound, luminescent material, light transmitter using same, and production method for 2,5-dicyano-3,6-dihalogenopyrazine |
JPWO2017082246A1 (en) * | 2015-11-10 | 2018-08-30 | 国立大学法人九州大学 | Dicyanopyrazine compound, light emitting material, light emitting device using the same, and method for producing 2,5-dicyano-3,6-dihalogenopyrazine |
US10497878B2 (en) | 2015-11-10 | 2019-12-03 | Kyushu University, National University Corporation | Dicyanopyrazine compound, luminescent material, luminescence device using the same, and method for producing 2,5-dicyano-3,6-dihalogenopyrazine |
US10522763B2 (en) | 2015-11-10 | 2019-12-31 | Kyushu University, National Universit Corporation | Dicyanopyrazine compound, luminescent material, luminescence device using the same, and method for producing 2,5-dicyano-3,6-dihalogenopyrazine |
JP2021014458A (en) * | 2015-11-10 | 2021-02-12 | 国立大学法人九州大学 | Dicyanopyrazine compound, luminescent material, and luminescence device using the same |
Also Published As
Publication number | Publication date |
---|---|
JPS6227069B2 (en) | 1987-06-12 |
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