Opening of Substituted Oxetanes with H<sub>2</sub>O<sub>2</sub> and Alkyl Hydroperoxides: Stereoselective Approach to 3-Peroxyalcohols and 1,2,4-Trioxepanes
作者:Patrick H. Dussault、Tony K. Trullinger、Farhana Noor-e-Ain
DOI:10.1021/ol0265259
日期:2002.12.1
of oxetanes by hydrogen peroxide proceeds regioselectively and with good to moderate stereoselectivity to furnish enantiomerically enriched 3-hydroperoxyalkanols. The corresponding opening using alkyl hydroperoxides furnishes 3-peroxyalkanols. The hydroperoxyalkanols are easily converted into enantiomerically enriched 1,2,4-trioxepanes, building blocks for antimalarials.
[反应:见正文]由过氧化氢路易斯酸催化的氧杂环丁烷的开环选择性进行,并具有良好至中等的立体选择性,以提供对映异构体富集的3-氢过氧链烷醇。使用烷基氢过氧化物的相应开口提供了3-过氧链烷醇。氢过氧链烷醇很容易转化为对映异构体富集的1,2,4-三氧杂环丁烷,是抗疟疾的基础。