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Browsing by Author "劉育廷"

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    藉由磺醯化試劑進行α-Hydroxy ketoximes與α-Oxo ketoximes的Beckmann裂解反應
    (2017) 劉育廷; Liu, Yu-Ting
    本論文原先預期以benzoin oxime利用磺醯化試劑活化N-OH鍵後進行分子內合環反應,得到indole產物。但卻意外得到Beckmann fragmentation的產物。為探討此反應的應用性,在我們的研究中是利用benzaldehyde系列化合物先與氰化鈉進行benzoin condensation後,產生benzoin衍生物, 同時也可以將benzoin進行氧化形成benzil的衍生物。將benzoin和benzil的衍生物分別與hydroxylamine hydrochloride進行反應,形成ketoxime後,最後在Ts2O或p-NsCl的反應條件下,進行Beckmann fragmentation得到碳–碳鍵裂解的產物。

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