Transposition des oximies de la 2H-naptho [1,8-bc] pyrannone-3 et de la 2H-benzo [b] furannone-3 |
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Authors: | Jean-Claude Hardy Marc Venet |
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Institution: | Département de Recherches Thérapeutiques, Pointet-Girard Groupe PHARMUKA, F 92390 Villeneuve-La-Garenne, France. |
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Abstract: | Refluxing the oximes () of naphtho-1,8-bc] pyran-3(2H)-one and () of 3 (2H)-benzofuranone with alcoholic hydrogen chloride give the corresponding α-alkoxy-ketones , , and α-chloroketone respectively. This transformation appears to be related to the acid conversion of N-aryhydroxylamines to o. and p. substituted anilines (BAMBERGER réarrangement. |
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