General [4 + 1] Cyclization Approach To Access 2,2-Disubstituted Tetrahydrofurans Enabled by Electrophilic Bifunctional Peroxides
作者:Min Gao、Yukun Zhao、Chen Zhong、Shengshu Liu、Pengkang Liu、Qi Yin、Lin Hu
DOI:10.1021/acs.orglett.9b02012
日期:2019.7.19
function as unique electrophilic oxygen synthons, for the synthesis of a broad range of 2,2-disubstituted tetrahydrofurans is achieved under operationally simple conditions. The unprecedented asymmetric version of such reaction is also realized via chiral auxiliary-assisted cyclization, thus providing a distinct approach to access chiral tetrahydrofurans with high diastereoselectivities. The new method
羰基亲核体与2-碘甲基烯丙基过氧化物的一般[4 +1]环化反应可在操作简单的条件下完成,该过氧化物用作独特的亲电子氧合成子,可合成范围广泛的2,2-二取代的四氢呋喃。这种反应的前所未有的不对称形式也可以通过手性辅助环化来实现,从而提供了一种独特的方法来获得具有高非对映选择性的手性四氢呋喃。该新方法可用于泊沙康唑药物核心结构的合成。