JPS5519231A - Preparation of 1-amino-4-bromoanthraquinone-2-sulfonic acid - Google Patents

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

Info

Publication number
JPS5519231A
JPS5519231A JP9177978A JP9177978A JPS5519231A JP S5519231 A JPS5519231 A JP S5519231A JP 9177978 A JP9177978 A JP 9177978A JP 9177978 A JP9177978 A JP 9177978A JP S5519231 A JPS5519231 A JP S5519231A
Authority
JP
Japan
Prior art keywords
alkali metal
metal salt
sulfonic acid
bromoanthraquinone
amino
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
JP9177978A
Other languages
Japanese (ja)
Inventor
Akira Takeshita
Makoto Hattori
Kaneo Yokoyama
Shinichi Tanji
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 JP9177978A priority Critical patent/JPS5519231A/en
Publication of JPS5519231A publication Critical patent/JPS5519231A/en
Pending legal-status Critical Current

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

Abstract

PURPOSE: To obtain the title compound economically with little formation of by- products, by the bromination of 1-aminoanthraquinone-2-sulfonate under specific pH condition using an organic acid or its alkali metal salt as buffer.
CONSTITUTION: The desired compound is obtained by the bromination of (A) 5W30 wt% water suspension of an alkali metal salt of 1-aminoanthraquinone-2- sulfonic acid with (B) bromine or an alkali metal bromide in the presence of (C) an organic acid such as acetic acid or its alkali metal salt in the presence or absence of (D) an inorganic salt such as sodium chloride and (E) an oxidizing agent such as sodium hypochlorite at pH 5W7 and -5W+20°C.
EFFECT: pH control in a plant is extremely easy.
COPYRIGHT: (C)1980,JPO&Japio
JP9177978A 1978-07-26 1978-07-26 Preparation of 1-amino-4-bromoanthraquinone-2-sulfonic acid Pending JPS5519231A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9177978A JPS5519231A (en) 1978-07-26 1978-07-26 Preparation of 1-amino-4-bromoanthraquinone-2-sulfonic acid

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9177978A JPS5519231A (en) 1978-07-26 1978-07-26 Preparation of 1-amino-4-bromoanthraquinone-2-sulfonic acid

Publications (1)

Publication Number Publication Date
JPS5519231A true JPS5519231A (en) 1980-02-09

Family

ID=14036066

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9177978A Pending JPS5519231A (en) 1978-07-26 1978-07-26 Preparation of 1-amino-4-bromoanthraquinone-2-sulfonic acid

Country Status (1)

Country Link
JP (1) JPS5519231A (en)

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