JPS552638A - Cyanopyrazinecarboxylic ester and its preparation - Google Patents

Cyanopyrazinecarboxylic ester and its preparation

Info

Publication number
JPS552638A
JPS552638A JP7489078A JP7489078A JPS552638A JP S552638 A JPS552638 A JP S552638A JP 7489078 A JP7489078 A JP 7489078A JP 7489078 A JP7489078 A JP 7489078A JP S552638 A JPS552638 A JP S552638A
Authority
JP
Japan
Prior art keywords
formula
compound
cyanopyrazinecarboxylic
ester
preparation
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
JP7489078A
Other languages
Japanese (ja)
Other versions
JPS6218553B2 (en
Inventor
Nobuo Tomita
Giichi Genda
Masaru Ito
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 JP7489078A priority Critical patent/JPS552638A/en
Publication of JPS552638A publication Critical patent/JPS552638A/en
Publication of JPS6218553B2 publication Critical patent/JPS6218553B2/ja
Granted legal-status Critical Current

Links

Abstract

NEW MATERIAL:A compound of formula I: (R is H1 is H, alkyl, phenyl, or furyl group; R' is alkyl groups).
USE: A raw material for preparing bispyrrolopyrazine pigments of formula II: (X is carbocyclic aromiatic diamine residue).
PROCESS: A dicyanopyrazine compound of formula III is dissolved in an alcohol and reacted with an alkali at -5 to 30°C to form a cyanopyrazine imidate solution. The pH of the reaction mixture is adjusted to 1W5 by adding a 1W30 wt.% aqueous mineral acid to give the objective compound of formula I.
COPYRIGHT: (C)1980,JPO&Japio
JP7489078A 1978-06-22 1978-06-22 Cyanopyrazinecarboxylic ester and its preparation Granted JPS552638A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7489078A JPS552638A (en) 1978-06-22 1978-06-22 Cyanopyrazinecarboxylic ester and its preparation

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7489078A JPS552638A (en) 1978-06-22 1978-06-22 Cyanopyrazinecarboxylic ester and its preparation

Publications (2)

Publication Number Publication Date
JPS552638A true JPS552638A (en) 1980-01-10
JPS6218553B2 JPS6218553B2 (en) 1987-04-23

Family

ID=13560409

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7489078A Granted JPS552638A (en) 1978-06-22 1978-06-22 Cyanopyrazinecarboxylic ester and its preparation

Country Status (1)

Country Link
JP (1) JPS552638A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH045877Y2 (en) * 1987-02-13 1992-02-19
JPH0396556U (en) * 1989-12-27 1991-10-02

Also Published As

Publication number Publication date
JPS6218553B2 (en) 1987-04-23

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