Transformation of Aryl Acyloin <i>O</i>‐Alkyl and <i>O</i>‐Phenyl Derivatives to Ketones
作者:Zhiyi Yao、Deju Ye、Hong Liu、Kaixian Chen、Hualiang Jiang
DOI:10.1080/00397910600978564
日期:2007.1.1
aryl acyloin (α‐hydroxyketone) O‐alkyl and O‐phenyl derivatives with 2–3 equiv of Zn and 1–2 equiv of NH4Cl in ethanol, refluxing for 20–120 min, gave the corresponding ketones with excellent yields. Further, α,β‐epoxy ketones can be efficiently transformed to β‐hydroxy ketones, and 2,2‐dialkoxy‐1‐phenyl ketone also can be dealkoxylated to 1‐phenyl ketone.
摘要 在乙醇中用 2-3 当量 Zn 和 1-2 当量 NH4Cl 处理芳基酰(α-羟基酮)O-烷基和 O-苯基衍生物,回流 20-120 分钟,得到相应的酮,收率极好. 此外,α,β-环氧酮可以有效地转化为β-羟基酮,2,2-二烷氧基-1-苯基酮也可以脱烷氧基化为1-苯基酮。