作者:Timothy J Donohoe、Jonathan J.G Winter、Madeleine Helliwell、Geoffrey Stemp
DOI:10.1016/s0040-4039(00)02225-5
日期:2001.2
dihydroxylation of a series of functionalised polyenes is described. Under acidic conditions, the osmate ester derivatives obtained from oxidation with OsO4/TMEDA undergo an intramolecular cyclisation reaction forming functionalised tetrahydrofurans with high stereoselectivity and in good yield. The generality of this method is illustrated with an application to the synthesis of a bis-tetrahydrofuran ring system
描述了一系列官能化的多烯的区域选择性二羟基化。在酸性条件下,通过用OsO 4 / TMEDA氧化获得的osmate酯衍生物经历分子内环化反应,形成具有高立体选择性和高收率的官能化四氢呋喃。举例说明了该方法的一般性,并将其应用于双-四氢呋喃环系统的合成。