same sulfinyl imine starting materials and changing the reductant to L-Selectride, the stereoselectivity could be efficiently reversed to afford the opposite product diastereomer in high yield and selectivity.
在含2%
水的THF中用NaBH 4还原各种N-叔
丁烷亚磺酰基
亚胺,从而以高收率和非对映选择性提供相应的仲亚磺酰胺。通过使用相同的亚磺酰基
亚胺原料并将还原剂更改为L-Selectride,可以有效地逆转立体选择性,从而以高收率和选择性提供相反的产物非对映异构体。