JPS52138527A - Preparation of quinophthalones - Google Patents

Preparation of quinophthalones

Info

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
Application number
JP3875676A
Other languages
Japanese (ja)
Other versions
JPS5651187B2 (en
Inventor
Akitoshi Igata
Michio Kawakami
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.)
Mitsui Toatsu Chemicals Inc
Original Assignee
Mitsui Toatsu Chemicals Inc
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 Mitsui Toatsu Chemicals Inc filed Critical Mitsui Toatsu Chemicals Inc
Priority to JP3875676A priority Critical patent/JPS52138527A/en
Publication of JPS52138527A publication Critical patent/JPS52138527A/en
Publication of JPS5651187B2 publication Critical patent/JPS5651187B2/ja
Granted legal-status Critical Current

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  • 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
JP3875676A 1976-04-08 1976-04-08 Preparation of quinophthalones Granted JPS52138527A (en)

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)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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

Cited By (1)

* Cited by examiner, † Cited by third party
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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