GAO, YUN;SHARPLESS, K. BARRY, J. AMER. CHEM. SOC., 110,(1988) N2, C. 7538-7539
作者:GAO, YUN、SHARPLESS, K. BARRY
DOI:——
日期:——
Synthesis and Preferred Conformations of All Regio- and Diastereoisomeric Methyl 2,3-Fluorohydroxyalkanoates
作者:Wibke S. Husstedt、Susanne Wiehle、Christian Stillig、Klaus Bergander、Stefan Grimme、Günter Haufe
DOI:10.1002/ejoc.201001224
日期:2011.1
Selective syntheses of enantiopure regio- and diastereomeric methyl 2,3-fluoro-hydroxyalkanoates via four different routes employing two types of fluorination reagents are reported. The anti- and syn-3-fluoro-2-hydroxyalkanoates 1 and 3 were prepared by treating the corresponding epoxides with Olah's reagent (Py·9HF). Cyclic sulfates prepared from the enantiomeric diols were ring-opened with TBAF to give the