Angular型Pyranocoumarin類の簡易合成法
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概要
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Convenient synthesis of angular pyranocoumarin from hydroxycoumarin and 1,1-diethoxy-3-methyl-2-butene according to the North's method was investigated. Both 5- and 7-hydroxycoumarins afforded corresponding pyranocoumarins in a comparatively good yield. Moreover, effects of additives and solvents were examined, and in the presence of cesium fluoride (CsF) in diethylaniline, 6-hydroxycoumarin provided the corresponding pyranocoumarin in a 62% yield.
- 社団法人日本薬学会の論文
- 1998-12-01
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