Tandem C-2 Functionalization–Intramolecular Azide–Alkyne 1,3-Dipolar Cycloaddition Reaction: A Convenient Route to Highly Diversified 9<i>H</i>-Benzo[<i>b</i>]pyrrolo[1,2-<i>g</i>][1,2,3]triazolo[1,5-<i>d</i>][1,4]diazepines
作者:Mohd. Kamil Hussain、Mohd. Imran Ansari、Ruchir Kant、Kanchan Hajela
DOI:10.1021/ol403420z
日期:2014.1.17
An efficient diversity-oriented synthetic approach to annulated 9H-benzo[b]pyrrolo[1,2-g][1,2,3]triazolo[1,5-d][1,4]diazepines has been developed using a R Sc(OTf)(3)-catalyzed two-component tandem C-2 functionalization intramolecular azide-alkyne 1,3-dipolar cycloaddition reaction. The reaction shows high substrate tolerance and provides a library of fused heterocycles that may. lead to novel biologically active compounds or drug lead molecules.