JPS5483026A - Bispyrrolopyrazine derivative, its preparation, and method for utilizing it as pigment - Google Patents
Bispyrrolopyrazine derivative, its preparation, and method for utilizing it as pigmentInfo
- 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
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
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)
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 |
-
1977
- 1977-12-14 JP JP52150280A patent/JPS6028874B2/en not_active Expired
Cited By (2)
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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