JPS5762268A - Preparation of 3,5-disubstituted pyrazinone - Google Patents
Preparation of 3,5-disubstituted pyrazinoneInfo
- Publication number
- JPS5762268A JPS5762268A JP13776880A JP13776880A JPS5762268A JP S5762268 A JPS5762268 A JP S5762268A JP 13776880 A JP13776880 A JP 13776880A JP 13776880 A JP13776880 A JP 13776880A JP S5762268 A JPS5762268 A JP S5762268A
- Authority
- JP
- Japan
- Prior art keywords
- alkali metal
- pyrazinone
- alkyl
- compound
- 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
Abstract
PURPOSE: To prepare the titled substance, by reacting a 3-substituted-5,6-dihydro2(1H)-pyrazinone with a carbonyl compound in the presence of an alkali metal alkoxide, an alkali metal hydroxide, or a quaternary ammonium salt.
CONSTITUTION: A pyrazinone derivative of formula III having various substitutent group at the 5-position is prepared by reacting the compound of formulaI(R1 is alkyl, phenyl, or phenylalkyl) with the compound of formula II (R2 is H or alkyl; R3 is alkyl, aryl, or heterocylic group) in the presence of an alkali metal alkoxide (e.g. sodium methoxide), an alkali metal hyroxide (e.g. potassium hydroxide) or a quaternary ammonium salt (e.g. benzyltrimethylammonium hydroxide) at the refluxing temp.
USE: Synthetic intermediate of perfume, pharmaceutical, and pesticide.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13776880A JPS5762268A (en) | 1980-10-03 | 1980-10-03 | Preparation of 3,5-disubstituted pyrazinone |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13776880A JPS5762268A (en) | 1980-10-03 | 1980-10-03 | Preparation of 3,5-disubstituted pyrazinone |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5762268A true JPS5762268A (en) | 1982-04-15 |
JPS6123794B2 JPS6123794B2 (en) | 1986-06-07 |
Family
ID=15206371
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP13776880A Granted JPS5762268A (en) | 1980-10-03 | 1980-10-03 | Preparation of 3,5-disubstituted pyrazinone |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5762268A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5079251A (en) * | 1989-07-12 | 1992-01-07 | Imperial Chemical Industries Plc | Novel compounds |
WO2010055884A1 (en) * | 2008-11-13 | 2010-05-20 | 日本農薬株式会社 | Method for producing pyrazine derivative and intermediate thereof |
-
1980
- 1980-10-03 JP JP13776880A patent/JPS5762268A/en active Granted
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5079251A (en) * | 1989-07-12 | 1992-01-07 | Imperial Chemical Industries Plc | Novel compounds |
WO2010055884A1 (en) * | 2008-11-13 | 2010-05-20 | 日本農薬株式会社 | Method for producing pyrazine derivative and intermediate thereof |
Also Published As
Publication number | Publication date |
---|---|
JPS6123794B2 (en) | 1986-06-07 |
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