A series of 1,3-diazaheterocycle-fused 1,2,3-triazoles were conveniently
and quantitatively prepared by 1,3-dipolar cycloaddition of heterocyclic
ketene aminals with fluoroalkanesulfonyl azide, followed by elimination
of fluoroalkanesulfonyl amide at room temperature without any catalyst.
fluoroalkanesulfonyl azide - ketene aminals - 1,3-dipolar
cycloaddition - heterocycles - 1,3-diazaheterocycle-fused
1,2,3-triazole
