Fluoroaziridines as novel substrates in the modified Petasis reaction: synthesis of monofluorinated propargyl amines
作者:Alexander S. Konev、Sara Stas、Mikhail S. Novikov、Alexander F. Khlebnikov、Kourosch Abbaspour Tehrani
DOI:10.1016/j.tet.2007.10.067
日期:2008.1
Reaction of 2-fluoroaziridines with potassium alkynyltrifluoroborates in the presence of BF3·OEt2 leads to fluorinated propargyl amines in moderate to good yields. The reaction proceeds as an in situ isomerization of 2-fluoroaziridines to α-fluorinated imines, followed by the reaction of the imine with alkynyldifluoroborane, which is generated in situ from the potassium alkynyltrifluoroborates and