| 发明名称 |
Intermediates for preparing hydroxyphenylpyridazinones |
| 摘要 |
5-(5'-Halo-2'-methoxyphenyl)-3,4-dihalo-2(5H)-furanones are prepared by a Friedel-Crafts reaction using a p-haloanisole and a mucohalic acid in the presence of aluminum chloride. They are used as chemical intermediates for preparing hydroxyphenylpyridazinones.
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| 申请公布号 |
US4272440(A) |
申请公布日期 |
1981.06.09 |
| 申请号 |
US19790008732 |
申请日期 |
1979.02.02 |
| 申请人 |
SMITHKLINE CORPORATION |
发明人 |
DUGGAN, ANGELINA J.;WEBB, ROBERT L. |
| 分类号 |
C07D237/14;C07D307/58;(IPC1-7):C07D307/58 |
主分类号 |
C07D237/14 |
| 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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