| 发明名称 |
METHOD FOR PRODUCING CHROMONE DERIVATIVE |
| 摘要 |
PROBLEM TO BE SOLVED: To provide a more industrial method for producing a chromone derivative represented by general formula (2). SOLUTION: A fumaric acid ester derivative represented by general formula (1) is reacted with at least one selected from the group consisting of a phosphorus halide, phosphorus pentoxide and a thionyl halide in methanesulfonic acid.
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| 申请公布号 |
JP2002265461(A) |
申请公布日期 |
2002.09.18 |
| 申请号 |
JP20010068339 |
申请日期 |
2001.03.12 |
| 申请人 |
SUMITOMO CHEM CO LTD;ONO PHARMACEUT CO LTD |
发明人 |
OTSUKA SUSUMU;HIBINO HIROAKI;MIYAMOTO YASUNOBU;OKUMOTO ITSUO |
| 分类号 |
C07D311/24;C07B61/00;(IPC1-7):C07D311/24 |
主分类号 |
C07D311/24 |
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