JPS5533407A - Production of diaminodihyroxyanthraquinone - Google Patents

Production of diaminodihyroxyanthraquinone

Info

Publication number
JPS5533407A
JPS5533407A JP10484378A JP10484378A JPS5533407A JP S5533407 A JPS5533407 A JP S5533407A JP 10484378 A JP10484378 A JP 10484378A JP 10484378 A JP10484378 A JP 10484378A JP S5533407 A JPS5533407 A JP S5533407A
Authority
JP
Japan
Prior art keywords
diphenoxyanthraquinone
nitrated
isolation
reduced
diaminophenol
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.)
Pending
Application number
JP10484378A
Other languages
Japanese (ja)
Inventor
Tsunehiro Sakai
Koichi Yoshiura
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 JP10484378A priority Critical patent/JPS5533407A/en
Publication of JPS5533407A publication Critical patent/JPS5533407A/en
Pending legal-status Critical Current

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  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

PURPOSE: Nitrated diphenoxyanthraquinone is hydrolyzed with alkali and, without isolation, the resulting dinitrodihydroxyanthraquinone is reduced to produce readily title compound in high yield.
CONSTITUTION: A nitrated diphenoxyanthraquinone as nitrated 1,5-diphenoxyanthraquinone is hydrolyzed with caustic alkali in an aqeuous solvent and the resulting mixture contaning dinitrodihydoxyanthraquinone and dinitrophenol is derectly reduced with a reducing reagent as sodium sulfide or by catalytic hydrogenation without isolation of the product to give diaminodihydroxyanthraquinone and diaminophenol. The reaction mixture is made acidic or alkaline and filtered to isolate the objective compound. After insloation of the diaminophenol or without isolation the filtrate is subjected to usual water disposal.
EFFECT: The total volume of waste water is reduced and this process is very economic.
COPYRIGHT: (C)1980,JPO&Japio
JP10484378A 1978-08-30 1978-08-30 Production of diaminodihyroxyanthraquinone Pending JPS5533407A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10484378A JPS5533407A (en) 1978-08-30 1978-08-30 Production of diaminodihyroxyanthraquinone

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10484378A JPS5533407A (en) 1978-08-30 1978-08-30 Production of diaminodihyroxyanthraquinone

Publications (1)

Publication Number Publication Date
JPS5533407A true JPS5533407A (en) 1980-03-08

Family

ID=14391610

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10484378A Pending JPS5533407A (en) 1978-08-30 1978-08-30 Production of diaminodihyroxyanthraquinone

Country Status (1)

Country Link
JP (1) JPS5533407A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114456616A (en) * 2022-03-01 2022-05-10 常州大学 Synthesis method of disperse red 60

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114456616A (en) * 2022-03-01 2022-05-10 常州大学 Synthesis method of disperse red 60
CN114456616B (en) * 2022-03-01 2024-03-15 常州大学 Synthesis method of disperse red 60

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