发明名称 |
Process for preparing substituted 2-cyanocinnamic esters |
摘要 |
In the preparation of substituted 2-cyanocinnamic esters by the Knoevenagel condensation of cyanoacetic esters and carbonyl compounds, the reaction times for obtaining high yields can be considerably reduced by using C3-C6-monocarboxylic acids and ammonium compounds as catalysts.
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申请公布号 |
US5451694(A) |
申请公布日期 |
1995.09.19 |
申请号 |
US19940230981 |
申请日期 |
1994.04.22 |
申请人 |
HAARMANN & REIMER GMBH |
发明人 |
KUHN, WALTER;MARKS, WERNER;THIELMANN, THOMAS;DILK, ERICH |
分类号 |
C07C253/30;(IPC1-7):C07C253/30 |
主分类号 |
C07C253/30 |
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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