Straightforward Preparation of Functionalized α‐CF
<sub>2</sub>
‐Galactosides through an Oxygen to Carbon Acyl Migration
作者:Sophie Colombel、Morgane Sanselme、Eric Leclerc、Jean‐Charles Quirion、Xavier Pannecoucke
DOI:10.1002/chem.201100183
日期:2011.5.2
A privileged Glycon! A radical‐addition Meerwein–Ponndorf–Verley (MPV) reduction sequence provides access to functionalized α‐CF2‐galactosides (see scheme). Introduction of a CF2Br group in the pseudo‐anomeric position aided the transfer of an aglycon chain from O‐2 to C‐1′ through an intramolecular addition–reduction sequence, which involved a Br–Li exchange. This methodology gives access to a wide
尊贵的Glycon!自由基加成米尔文-Ponndorf-沃莱(MPV)还原的序列提供了访问官能α-CF 2 -galactosides(参见方案)。在假异头位置引入CF 2 Br基团,有助于糖苷酸链通过分子内加成-还原序列从O-2到C-1'的转移,该过程涉及Br-Li交换。这种方法学使人们可以使用各种各样的糖缀合物的氟化C糖苷类似物。