Gold-catalyzed one-step practical synthesis of oxetan-3-ones from readily available propargylic alcohols.

Gold-catalyzed one-step practical synthesis of oxetan-3-ones from readily available propargylic alcohols.
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DOI:
10.1021/ja1033952
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发表时间:
2010-06-30
影响因子:
15
通讯作者:
Zhang, Liming
Zhang, Liming
中科院分区:
化学1区
文献类型:
--
作者:
Ye, Longwu;He, Weimin;Zhang, Liming

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A general solution for the synthesis of various oxetan-3-ones is developed. This reaction uses readily available propargylic alcohols as substrates and proceeds without the exclusion of moisture or air (‘open flask’). Notably, oxetan-3-one, a highly valuable substrate for drug discovery, can be prepared in one-step from propargyl alcohol in a fairly good yield. The facile formation of the strained oxetane ring provides strong support for the intermediacy of α-oxo gold carbenes. This safe and efficient generation of gold carbenes via intermolecular alkyne oxidation offers a potentially general entry into α-oxo metal carbene chemistry without using hazardous diazo ketones.
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