JPS52138527A - Preparation of quinophthalones - Google Patents
Preparation of quinophthalonesInfo
- Publication number
- JPS52138527A JPS52138527A JP3875676A JP3875676A JPS52138527A JP S52138527 A JPS52138527 A JP S52138527A JP 3875676 A JP3875676 A JP 3875676A JP 3875676 A JP3875676 A JP 3875676A JP S52138527 A JPS52138527 A JP S52138527A
- Authority
- JP
- Japan
- Prior art keywords
- quinophthalones
- preparation
- dialkylaniline
- hydroxy
- methyl
- 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
Landscapes
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
PURPOSE: To prepare highly purified quinophthalone dyes in higher yields by reaction between 3-hydroxy-2-methyl-cinchonic acid derivatives and an aromatic polycarboxylic acid in a solvent of an N, N'-dialkylaniline.
COPYRIGHT: (C)1977,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3875676A JPS52138527A (en) | 1976-04-08 | 1976-04-08 | Preparation of quinophthalones |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3875676A JPS52138527A (en) | 1976-04-08 | 1976-04-08 | Preparation of quinophthalones |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS52138527A true JPS52138527A (en) | 1977-11-18 |
JPS5651187B2 JPS5651187B2 (en) | 1981-12-03 |
Family
ID=12534122
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP3875676A Granted JPS52138527A (en) | 1976-04-08 | 1976-04-08 | Preparation of quinophthalones |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS52138527A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105669545A (en) * | 2016-03-15 | 2016-06-15 | 江苏华尔化工有限公司 | Preparation technology of dye disperse yellow 54# |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5810152U (en) * | 1981-07-08 | 1983-01-22 | 富士通株式会社 | optical reader |
JPS60140158U (en) * | 1984-02-28 | 1985-09-17 | 富士通株式会社 | reading table |
-
1976
- 1976-04-08 JP JP3875676A patent/JPS52138527A/en active Granted
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105669545A (en) * | 2016-03-15 | 2016-06-15 | 江苏华尔化工有限公司 | Preparation technology of dye disperse yellow 54# |
Also Published As
Publication number | Publication date |
---|---|
JPS5651187B2 (en) | 1981-12-03 |
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