Synthesis of Differentially Protected<i>myo</i>- and<i>chiro</i>-Inositols from<scp>d</scp>-Xylose: Stereoselectivity in Intramolecular SmI<sub>2</sub>-Promoted Pinacol Reactions
作者:Alexander Kornienko、Marc d’Alarcao、Giovanni Luchetti、Kejia Ding
DOI:10.1055/s-2008-1067259
日期:2008.10
Methods for the enantioselective conversion of d-xylose into differentially protected myo-inositol and l-chiro-inositol have been developed. The key transformation is a highly diastereoselective intramolecular SmI2-promoted pinacol coupling. The stereoselectivity was extremely dependent on the conditions, suggesting a change in mechanism. Preliminary mechanistic experiments and possible explanations for this behavior are discussed.
已开发出将d-木糖选择性转化为不同保护形式的肌醇和l-奇霉醇的方法。关键转化是高度的非对映选择性内分子SmI2促成的皮那克尔耦合。立体选择性极度依赖于反应条件,提示机制可能发生变化。讨论了初步的机制实验及对此行为的可能解释。