Stereoselective Synthesis of 2-Deoxy-β-glycosides Using Anomeric O-Alkylation/Arylation
作者:William J. Morris、Matthew D. Shair
DOI:10.1021/ol8022006
日期:2009.1.1
AnomericO-alkylation/arylation is applied to the synthesis of 2-deoxy-β-glycosides. Treatment of lactols with NaH in dioxane followed by the addition of electrophiles leads to the formation of 2-deoxy-β-glycosides in high yield and high selectivity. The high β-selectivity observed here demonstrates a powerful stereoelectronic effect for the stereoselective formation of acetals under kinetic control
异头 O-烷基化/芳基化应用于 2-脱氧-β-糖苷的合成。在二恶烷中用 NaH 处理乳糖醇,然后加入亲电子试剂,以高产率和高选择性形成 2-脱氧-β-糖苷。这里观察到的高β-选择性证明了在动力学控制下立体选择性形成缩醛的强大立体电子效应。