| 发明名称 |
PROCESS FOR THE PREPARATION OF N,N'-DISUBSTITUTED 1,4-DIAMINOANTHRAQUINONES |
| 摘要 |
Process for the preparation of N,N'-disubstituted 1,4-dianinoanthraquinon es <IMG> in which R is an aliphatic or aromatic radical, characterized in that 1,4-dihydroxyanthraquinones are reacted with aliphatic or aromatic amines in the presence of a readily water-soluble, dipolar-aprotic solvent (e.g. NMP) and of a second solvent, different from the first.
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| 申请公布号 |
CA2428957(A1) |
申请公布日期 |
2003.11.21 |
| 申请号 |
CA20032428957 |
申请日期 |
2003.05.16 |
| 申请人 |
BAYER AKTIENGESELLSCHAFT |
发明人 |
NASEBAND, JULIUS;STAWITZ, JOSEF-WALTER;FELDHUES, ULRICH |
| 分类号 |
C07C221/00;C07C225/32;C07C225/34;C09B1/28;C09B1/32;(IPC1-7):C07C50/18;C09B1/16 |
主分类号 |
C07C221/00 |
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