| 发明名称 |
Process for the manufacture of pyrono-condensed coumarins |
| 摘要 |
A new process for the manufacture of pyrono-condensed coumarin compounds by reacting an anil derivative of a heterocyclic compound with a cyanoacetic acid derivative in the presence of a base and a strong polar aprotic solvent is described.
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| 申请公布号 |
US4154741(A) |
申请公布日期 |
1979.05.15 |
| 申请号 |
US19770864360 |
申请日期 |
1977.12.27 |
| 申请人 |
CIBA-GEIGY CORP |
发明人 |
WOLFBEIS, OTTO;ZIEGLER, ERICH |
| 分类号 |
C07D311/56;C07D491/04;C07D493/04;(IPC1-7):C07D493/04 |
主分类号 |
C07D311/56 |
| 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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