Base-mediated synthesis of highly functionalized 2-aminonicotinonitriles from α-keto vinyl azides and α,α-dicyanoalkenes†
Abstract
A novel access to highly functionalized 2-aminonicotinonitriles via efficient annulations of α-keto vinyl azides and α,α-dicyanoalkenes is described. This annulation was achieved via base-mediated ring-openings and intramolecular rearrangements. A possible mechanism is also proposed.