proved to be a safer, thermally stable, alternative to diazomethane. Using this strategy with slightly adapted reaction conditions, we could obtain the key building block 1 b in an isolated yield of 58% on a 200 mg scale. The reaction was efficiently scaled-up as demonstrated by the good yield of 62% obtained on a 2 g scale and then on a 28 g scale (Table 1, entries 2 & 3). Decreasing the amount of iodomethyl
我们正在报告一种新开发的、实验室稳定的(1
氟环丙基)类
金属试剂的制备和在交叉偶联反应中的使用。针对这种 α-
氟化
锡烷试剂描述的 Stille 交叉偶联反应适用于各种带有各种官能团的芳基和烯基(假)卤化物。还从相应的带有酯柄的1-
氟环丙基
锡试剂获得了对映体富集的交叉偶联产物。最后,1-
氟环丙基部分的
化学稳定性也通过进行多次后官能化得到了证明。