JPS54154776A - Preparation of cyano-pyrazinecarboxamide - Google Patents
Preparation of cyano-pyrazinecarboxamideInfo
- Publication number
- JPS54154776A JPS54154776A JP6365578A JP6365578A JPS54154776A JP S54154776 A JPS54154776 A JP S54154776A JP 6365578 A JP6365578 A JP 6365578A JP 6365578 A JP6365578 A JP 6365578A JP S54154776 A JPS54154776 A JP S54154776A
- Authority
- JP
- Japan
- Prior art keywords
- formula
- pyrazinecarboxamide
- cyano
- dicyanopyrazine
- intermediates
- 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 obtain the title compound useful as intermediates for pesticides and dyes, particularly intermediates for the synthesis of pigments, very readily in high yield, by treating a dicyanopyrazine with a specific acid.
CONSTITUTION: A dicyanopyrazine(D) of formula I: (R is H, alkyl, or phenyl group) is treated with a mixture of hydrochloric and acetic acids, preferably in a weight ratio of the hydrochloric acid (about ≥20 wt.%) to D of 3W20=1, preferably 5W10=1, and that of the acetic acid to D of 0.5W40:1, preferably 1W30:1, to give a cyano-pyrazinecarboxamide of formula II. The compound of formula I can be obtained by reacting a diaminomaleonitrile with an α-diketone.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6365578A JPS54154776A (en) | 1978-05-27 | 1978-05-27 | Preparation of cyano-pyrazinecarboxamide |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6365578A JPS54154776A (en) | 1978-05-27 | 1978-05-27 | Preparation of cyano-pyrazinecarboxamide |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS54154776A true JPS54154776A (en) | 1979-12-06 |
JPS6156230B2 JPS6156230B2 (en) | 1986-12-01 |
Family
ID=13235570
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP6365578A Granted JPS54154776A (en) | 1978-05-27 | 1978-05-27 | Preparation of cyano-pyrazinecarboxamide |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS54154776A (en) |
-
1978
- 1978-05-27 JP JP6365578A patent/JPS54154776A/en active Granted
Also Published As
Publication number | Publication date |
---|---|
JPS6156230B2 (en) | 1986-12-01 |
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