cyanide-opening reaction of epoxide with TBAF and TMSN, in THF or TBAF and TMSCN in MeCN occurred regioselectively to afford β-hydroxy azides and cyanides in good yield. These hypervalent silicates have been shown to be highly effective as nucleophilic azide and cyanide donors under mild conditions. This methodology has been applied to the preparation of statine.
环氧化物与 T
BAF 和
TMSN 在 THF 或 T
BAF 和
TMSCN 在 MeCN 中的
叠氮化物和
氰化物开环反应区域选择性地发生,以良好的收率提供 β-羟基
叠氮化物和
氰化物。这些高价
硅酸盐已被证明在温和条件下作为亲核
叠氮化物和
氰化物供体非常有效。该方法已应用于他汀的制备。