Intercepting the Banert cascade with nucleophilic fluorine: direct access to α-fluorinated <i>N</i>H-1,2,3-triazoles
作者:J. R. Alexander、P. V. Kevorkian、J. J. Topczewski
DOI:10.1039/d1cc01179k
日期:——
The treatment of propargylic azides with silver(I) fluoride in acetonitrile was found to yield α-fluorinated NH-1,2,3-triazoles via the Banert cascade. The reaction was regioselective and the products result from an initial [3,3] rearrangement. The reaction is demonstrated on >15 examples with yields ranging from 37% to 86%.
发现在乙腈中用氟化银 ( I )处理炔丙基叠氮化物可通过Banert 级联反应生成 α-氟化N H-1,2,3-三唑。该反应是区域选择性的,产物是由最初的 [3,3] 重排产生的。该反应在 >15 个实例上得到证明,产率范围为 37% 至 86%。