发明名称 |
PROCESS FOR THE PREPARATION OF 1-AMINO-4-BROMOANTH-RAQUINONE-2-SULPHONIC ACID AND ITS ALKALI METAL SALTS |
摘要 |
<p>A process for preparing 1-amino-4-bromoanthraquinone-2-sulphonic acid or an alkali metal salt thereof which comprises contacting 1-amino-anthraquinone at a temperature in the range of 90 DEG to 150 DEG C. with an SO3-containing sulphuric acid (oleum) and thereafter treating the resultant sulphonated 1-amino-anthraquinone with at least 0.5 molar equivalent of bromine, relative to 1 mol of 1-amino-anthraquinone, at temperatures in the range from 60 DEG to 100 DEG C.</p> |
申请公布号 |
IN148241(B) |
申请公布日期 |
1980.12.13 |
申请号 |
IN1978DE59119 |
申请日期 |
1978.08.10 |
申请人 |
BAYER AG |
发明人 |
LEISTER H;MUDERS R;DITTMER H;SCHONHAGEN H |
分类号 |
C07C309/53;C07C;C07C67/00;C07C301/00;C07C303/22;C07C303/32;(IPC1-7):C07C49/68 |
主分类号 |
C07C309/53 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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