发明名称 |
VERFAHREN ZUR HERSTELLUNG VON 4- DIMETHYLAMINOPYRIDIN (4-DMAP) |
摘要 |
<p>An improved process for producing 4-dimethyl amino pyridine is provided. The process comprises quaternizing pyridine with a suitable quaternizing agent in the presence of organic solvent, isolating the resulting salt and aminating the salt, N- Ä4-pyridylÜ pyridinium chloride hydrochloride, with N, N-dimethyl formamide. The resultant reaction mass is hydrolysed in the presence of a base, extracted with a suitable organic solvent and distilled under vacuum to produce 4-dimethyl amino pyridine.</p> |
申请公布号 |
AT309219(T) |
申请公布日期 |
2005.11.15 |
申请号 |
AT20030004093T |
申请日期 |
2003.02.25 |
申请人 |
JUBILANT ORGANOSYS LIMITED |
发明人 |
KUMAR, MAHENDRA;SINGH, SHAILENDRA KUMAR;JOYOTIBA PHUL;AGARWAL, ASHUTOSH |
分类号 |
C07D213/74;(IPC1-7):C07D213/74 |
主分类号 |
C07D213/74 |
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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