| 发明名称 |
Process for preparing 2,5-dimethyl-1,4-phenylenediamine |
| 摘要 |
<p>In the present invention there is disclosed a process for preparing 2,5-dimethyl-1,4-phenylenediamine by diazotization of sulfanilic acid, copulation with 2,5-dimethylaniline and reduction of the obtained dyestuff with hydrazine hydrate under catalysis carried out by Raney nickel.</p> |
| 申请公布号 |
CZ286366(B6) |
申请公布日期 |
2000.03.15 |
| 申请号 |
CZ19950001363 |
申请日期 |
1995.05.29 |
| 申请人 |
ALIACHEM A.S. |
发明人 |
CHLOST MILAN ING.;TICHY JIRI ING.;CEJKA KAREL ING.;FRYDRYCHOVA DAGMAR |
| 分类号 |
C07C209/42;C07C211/51;(IPC1-7):C07C209/42 |
主分类号 |
C07C209/42 |
| 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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