发明名称 |
Process for the production of 2-alkyl or 2-cycloalkyl-4-methyl-6-hydroxypyrimidines |
摘要 |
Production of 2-alkyl or 2-cycloalkyl-4-methyl-6-hydroxy pyrimidines by first reacting diketene and lower alkanoic or cycloalkanoic acid amides in the presence of catalytic amounts of Lewis bases or Lewis or Bronsted acids, followed by treating the N-acetoacetyl (lower) alkanoic or cycloalkanoic acid amide intermediates with ammonia in the presence of acid catalysts.
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申请公布号 |
US4018771(A) |
申请公布日期 |
1977.04.19 |
申请号 |
US19760711035 |
申请日期 |
1976.08.23 |
申请人 |
CIBA-GEIGY CORPORATION |
发明人 |
GUPTON, III, JOHN T.;JELENEVSKY, ALEX M.;MIYAZAKI, TERUKO U.;PETREE, HARRIS E. |
分类号 |
C07D239/36;(IPC1-7):C07D239/34 |
主分类号 |
C07D239/36 |
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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