Easy Access to Derivatives of 2-(Hydroxymethyl)propane-1,2,3-triol (Isoerythritol) with up to Four Separately Addressable Functionalities
作者:Marko Friedrich、Andrei I. Savchenko、Andreas Wächtler、Armin de Meijere
DOI:10.1002/ejoc.200200099
日期:2003.6
tetraol 5-(hydroxymethyl)-2,2-dioxo[1,3,2]dioxathian-5-ol (7) in 86% yield, which can be used to easily access tetrafunctional derivatives of 2-(hydroxymethyl)propane-1,2,3-triol (isoerythritol); for example, acetylation with acetic anhydride furnishes in 96% yield the primary acetate 11, which reacts with potassium cyanide and sodium azide to give the 2-cyano- and 2-(azidomethyl)propane-1,2,3-triol monoacetates
从 2-亚甲基丙烷-1,3-二醇 (1) 和亚硫酰氯以 91% 的产率获得 5-亚甲基-2-氧代 [1,3,2] 二氧杂环己烷 (2)。环状亚硫酸盐 2 与多种亲核试剂反应,以 62-77% 的产率得到二醇 1 的形式上单取代的产物 3。2 用 RuCl3/NaIO4 氧化得到双保护的四醇 5-(羟甲基)-2,2-dioxo[1,3,2]dioxathian-5-ol (7),产率为 86%,可用于轻松获得四官能团2-(羟甲基)丙烷-1,2,3-三醇(异赤藓糖醇)的衍生物;例如,用乙酸酐乙酰化得到 96% 的初级乙酸酯 11,它与氰化钾和叠氮化钠反应得到 2-氰基-和 2-(叠氮甲基)丙烷-1,2,3-三醇单乙酸酯 12a, b(分别为 78% 和 82%)。(© Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2003)