JPS5483026A - Bispyrrolopyrazine derivative, its preparation, and method for utilizing it as pigment - Google Patents

Bispyrrolopyrazine derivative, its preparation, and method for utilizing it as pigment

Info

Publication number
JPS5483026A
JPS5483026A JP15028077A JP15028077A JPS5483026A JP S5483026 A JPS5483026 A JP S5483026A JP 15028077 A JP15028077 A JP 15028077A JP 15028077 A JP15028077 A JP 15028077A JP S5483026 A JPS5483026 A JP S5483026A
Authority
JP
Japan
Prior art keywords
bispyrrolopyrazine
preparation
derivative
pigment
utilizing
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
JP15028077A
Other languages
Japanese (ja)
Other versions
JPS6028874B2 (en
Inventor
Giichi Genda
Nobuo Tomita
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 JP52150280A priority Critical patent/JPS6028874B2/en
Publication of JPS5483026A publication Critical patent/JPS5483026A/en
Publication of JPS6028874B2 publication Critical patent/JPS6028874B2/en
Expired legal-status Critical Current

Links

Abstract

NEW MATERIAL:Bispyrrolopyrazine derivatives of formula I (R1, R2 are H, methyl, furyl, phenyl, substituted phenyl; x is residue of aromatic homocyclic ring).
USE: Pigments with bright tone of deep yellow to yellowish orange, which are outsstanding for weathering fastness, acid resistance, alkali resistance, brightness and coloring power.
PREPARATION: Title derivative is prepared by reaction of 7-amino-2,3-disubstituted-5-oxopyrrolo[3,4b]pyrazine with a diisocyanate of formula III.
COPYRIGHT: (C)1979,JPO&Japio
JP52150280A 1977-12-14 1977-12-14 Bispirolopyrazine compounds, methods for their preparation and methods for using them as pigments Expired JPS6028874B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP52150280A JPS6028874B2 (en) 1977-12-14 1977-12-14 Bispirolopyrazine compounds, methods for their preparation and methods for using them as pigments

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP52150280A JPS6028874B2 (en) 1977-12-14 1977-12-14 Bispirolopyrazine compounds, methods for their preparation and methods for using them as pigments

Publications (2)

Publication Number Publication Date
JPS5483026A true JPS5483026A (en) 1979-07-02
JPS6028874B2 JPS6028874B2 (en) 1985-07-06

Family

ID=15493509

Family Applications (1)

Application Number Title Priority Date Filing Date
JP52150280A Expired JPS6028874B2 (en) 1977-12-14 1977-12-14 Bispirolopyrazine compounds, methods for their preparation and methods for using them as pigments

Country Status (1)

Country Link
JP (1) JPS6028874B2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2456765A1 (en) * 1979-05-16 1980-12-12 Asahi Chemical Ind IMINOISOINDOLINIC COMPOUNDS, THEIR PREPARATION PROCESS AND THEIR APPLICATION AS PIGMENTS
JPS5854085A (en) * 1981-09-19 1983-03-30 旭化成株式会社 Coloring method

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2456765A1 (en) * 1979-05-16 1980-12-12 Asahi Chemical Ind IMINOISOINDOLINIC COMPOUNDS, THEIR PREPARATION PROCESS AND THEIR APPLICATION AS PIGMENTS
JPS5854085A (en) * 1981-09-19 1983-03-30 旭化成株式会社 Coloring method

Also Published As

Publication number Publication date
JPS6028874B2 (en) 1985-07-06

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