Stereoselective reactions at the anomeric carbon constitute the cornerstone of preparative carbohydrate chemistry. Here, we report stereoselective C-arylation and etherification reactions of anomeric trifluoroborates derived from BMIDA esters. These reactions are characterized by high anomeric selectivities for 2-deoxysugars and broad substrate scope (24 examples), including disaccharides and trifluoroborates
异头碳的立体选择性反应构成制备
碳水化合物化学的基石。在这里,我们报告了衍生自 BM
IDA 酯的异头三
氟硼酸盐的立体选择性 C-芳基化和醚化反应。这些反应的特点是对 2-脱氧糖具有高异头选择性和广泛的底物范围(24 个例子),包括具有游离羟基的二糖和三
氟硼酸盐。总之,这种新型
碳水化合物试剂增加了适用于有效安装 C-C 键的异头亲核试剂的调色板。