Synthesis and Use of Achiral Oxazolidine-2-thiones in Selective Preparation of<i>trans</i>2,5-Disubstituted Tetrahydrofurans
作者:Gaël Jalce、Xavier Franck、Bruno Figadère
DOI:10.1002/ejoc.200800907
日期:2009.1
The use of achiral N-acetyloxazolidine-2-thiones in the C-glycosylation of lactol acetates has allowed us to prepare with high diastereoselectivity the expected trans 2,5-disubstituted tetrahydrofurans. A study based on the role of the steric hindrance of the N-acetyloxazolidine-2-thiones is reported. (© Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2009)
在乳醇乙酸酯的 C-糖基化中使用非手性 N-乙酰恶唑烷-2-硫酮使我们能够以高非对映选择性制备预期的反式 2,5-二取代四氢呋喃。报道了一项基于 N-乙酰恶唑烷-2-硫酮的空间位阻作用的研究。(© Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2009)