Double annulation of <i>ortho</i>- and <i>peri</i>-C–H bonds of fused (hetero)arenes to unusual oxepino-pyridines
Majji Shankar, Raja K. Rit, Somratan Sau, Kallol Mukherjee, Vincent Gandon, Akhila K. Sahoo
Abstract
Direct difunctionalization of chemically distinct <italic>ortho</italic>- and <italic>peri</italic>-C–H bonds of fused hetero(arenes) is illustrated through an unusual one-pot domino {[4 + 2] & [5 + 2]} double annulation with alkynes for the first time.
Topics & Concepts
AnnulationChemistryDominoDouble bondStereochemistryMedicinal chemistryOrganic chemistryCatalysisCatalytic C–H Functionalization MethodsCyclopropane Reaction MechanismsCatalytic Alkyne Reactions