Pramod S. Kulkarni

DBU⋅HI3-catalyzed oxidative cyclization: An efficient route to flavones and azaflavones

Abstract An efficient and operationally simple protocol has been developed for the synthesis of biologically significant flavones and 2-arylquinolin-4-ones (azaflavones). The methodology utilizes a bench-stable organocatalyst, DBU⋅HI3, to drive the oxidative cyclization of substituted 2’-hydroxychalcones and 2’-aminoch...