JPS54154776A - Preparation of cyano-pyrazinecarboxamide - Google Patents

Preparation of cyano-pyrazinecarboxamide

Info

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
Application number
JP6365578A
Other languages
Japanese (ja)
Other versions
JPS6156230B2 (en
Inventor
Giichi Genda
Nobuo Tomita
Masaru Ito
Saburo Kano
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nippon Soda Co Ltd
Original Assignee
Nippon Soda Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Nippon Soda Co Ltd filed Critical Nippon Soda Co Ltd
Priority to JP6365578A priority Critical patent/JPS54154776A/en
Publication of JPS54154776A publication Critical patent/JPS54154776A/en
Publication of JPS6156230B2 publication Critical patent/JPS6156230B2/ja
Granted legal-status Critical Current

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
JP6365578A 1978-05-27 1978-05-27 Preparation of cyano-pyrazinecarboxamide Granted JPS54154776A (en)

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)

Also Published As

Publication number Publication date
JPS6156230B2 (en) 1986-12-01

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