JPS5726655A - Preparation of 1-amino-4-bromoanthraquinone-2-sulfonic acid - Google Patents

Preparation of 1-amino-4-bromoanthraquinone-2-sulfonic acid

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Publication number
JPS5726655A
JPS5726655A JP10068380A JP10068380A JPS5726655A JP S5726655 A JPS5726655 A JP S5726655A JP 10068380 A JP10068380 A JP 10068380A JP 10068380 A JP10068380 A JP 10068380A JP S5726655 A JPS5726655 A JP S5726655A
Authority
JP
Japan
Prior art keywords
alkali metal
metal salt
sulfonic acid
salt
bromide
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
JP10068380A
Other languages
Japanese (ja)
Inventor
Akira Takeshita
Makoto Hattori
Yoji Toda
Shinichi Kaji
Tadashi Iga
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.)
Sumitomo Chemical Co Ltd
Original Assignee
Sumitomo Chemical 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 Sumitomo Chemical Co Ltd filed Critical Sumitomo Chemical Co Ltd
Priority to JP10068380A priority Critical patent/JPS5726655A/en
Publication of JPS5726655A publication Critical patent/JPS5726655A/en
Pending legal-status Critical Current

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

Abstract

PURPOSE: To prepare the titled compound useful as an intermediate of dye, in high yield, by brominating a suspension of finely divided 1-aminoanthraquinone-2- sulfonic acid alkali metal salt in the presence of an aliphatic dicarboxylic acid or its alkali metal salt.
CONSTITUTION: A 5W30wt% aqueous suspension of finely divided 1-aminoanthraquinone-2-sulfonic acid alkali metal salt is brominated with bromine or a combination of an alkali metal bromide (e.g. sodium bromide, potassium bromide, etc.) and an oxidizing agent (e.g. chlorine, sulfuric acid, etc.), in the presence of an aliphatic dicarboxylic acid or its alkali metal salt (e.g. succinic acid or its salt) and in the presence or absence of an inorganic salt (e.g. sodium chloride, potassium chloride, etc.), at pH5W7 and -5W+20°C, pref. pH5.5W6.5 and -5W+5°C to obtain the objective compound.
COPYRIGHT: (C)1982,JPO&Japio
JP10068380A 1980-07-22 1980-07-22 Preparation of 1-amino-4-bromoanthraquinone-2-sulfonic acid Pending JPS5726655A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10068380A JPS5726655A (en) 1980-07-22 1980-07-22 Preparation of 1-amino-4-bromoanthraquinone-2-sulfonic acid

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10068380A JPS5726655A (en) 1980-07-22 1980-07-22 Preparation of 1-amino-4-bromoanthraquinone-2-sulfonic acid

Publications (1)

Publication Number Publication Date
JPS5726655A true JPS5726655A (en) 1982-02-12

Family

ID=14280535

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10068380A Pending JPS5726655A (en) 1980-07-22 1980-07-22 Preparation of 1-amino-4-bromoanthraquinone-2-sulfonic acid

Country Status (1)

Country Link
JP (1) JPS5726655A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109734631A (en) * 2019-01-14 2019-05-10 马鞍山昂扬新材料科技有限公司 A kind of preparation method of bromamine acid

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109734631A (en) * 2019-01-14 2019-05-10 马鞍山昂扬新材料科技有限公司 A kind of preparation method of bromamine acid

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