クロウメモドキ樹皮成分の研究(第9報)ソリゲニン合成試驗
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As a step to synthesize alpha-and beta-sorigenin, the authors attempted to synthesize lactone of 4-hydroxy-3-hydroxymethyl-naphtoic acid-(2) (X). These were sythesized successively to (V), but contrary to our expectation, (V) underwent following procedure on the diazotization. Furthermore the cyano-group of (VII) was very unstable against hydrolysis and turned to carboxylic group even by very careful reduction treatment. So the course above mentioned was given up. But as the compounds (IV), (V), (VI), (VII) and (VIII) are not known in the literature, the properties and methods of preparation are mentioned.
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