The reagent consisting of 70% HFâpy (py = pyridine) and a
halonium oxidant converts RâOCS
2
Me into either
RâOCF
3
(R = primary) or RâF (R = secondary,
tertiary or benzylic) whereas the 50% HFâpy system converts
RâOCS
2
Me (R = secondary) into
RâOCF
3
.
由70% HF-py(py =
吡啶)和一种哈龙氧化剂组成的试剂可将R-OCS-2-Me转化为R-OCF-3(R = 初级)或R-F(R = 二级、三级或苄基),而50% HF-py系统可将R-OCS-2-Me(R = 二级)转化为R-OCF-3。