发明名称 |
Process for the production of 4-alkylpyrimidine |
摘要 |
4-alkylpyrimidine is produced by reacting formamide with a formyl methyl alkyl ketone diacetal without the addition of water at a temperature that allows removal of the 4-alkylpyrimidine from the reaction mixture by distillation. The process is readily applicable on an industrial scale and succeeds without the addition of water or ammonium chloride as a catalyst and permits the production of 4-alkylpyrimidine in good yields and excellent purities without time-consuming extraction steps.
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申请公布号 |
US7179914(B2) |
申请公布日期 |
2007.02.20 |
申请号 |
US20040778254 |
申请日期 |
2004.02.17 |
申请人 |
DEGUSSA AG |
发明人 |
HENNIGES HANS;PITZ HANS-JUERGEN;THEIS CHRISTOPH;NEUMANN MANFRED |
分类号 |
C07D239/26 |
主分类号 |
C07D239/26 |
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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