发明名称 |
PROCEDIMENTO PER LA PRODUZIONE DI 2 METIL TETRAIDRO PIRIMIDINE I SOSTITUITE |
摘要 |
1464829 1 - Substituted - 2 - methyl - tetrahydropyrimidines BAYER AG 15 Aug 1975 [17 Aug 1974] 34076/75 Heading C2C A process for preparing a 1-substituted-2- methyl-tetrahydropyrimidine comprises reacting an N-substituted propylene diamine with an acetoacetic acid ester or amide at a temperature of from 0‹ to 80‹ C. and removing the water produced in the reaction at a temperature of from 0 to 80‹ C. The process is preferably carried out in the presence of an inert solvent. The water of reaction may be removed by distillation or by addition of an inert dehydrating agent. |
申请公布号 |
IT1041201(B) |
申请公布日期 |
1980.01.10 |
申请号 |
IT19750050898 |
申请日期 |
1975.08.11 |
申请人 |
BAYER AG |
发明人 |
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分类号 |
B01J31/02;C07D239/06;C08G18/20 |
主分类号 |
B01J31/02 |
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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