Treatment of 2-aryloxytetrahydropyrans with boron trifluoride afforded 2-aryltetrahydropyrans via rearrangement in good yield. Aryl O-glycopyranosides were converted into the corresponding C-glycopyranosides by the same procedure.
使用
三氟化硼处理2-芳氧基
四氢吡喃,可以通过重排反应高效地得到2-芳基
四氢吡喃。同样的方法可以将芳基O-糖苷转化为相应的C-糖苷。