<i>N</i>‐Heterocyclic Carbene (NHC)‐Catalyzed Intramolecular Stetter Reaction to Access Dibenzo‐fused Seven‐membered Heterocycles
Sanjay Yadav, Surisetti Suresh
Abstract
Abstract Herein, we have delineated an NHC‐catalyzed transformation to access dibenzo‐fused seven‐membered heterocyclic compounds via intramolecular Stetter reaction under ambient conditions. A range of dibenzo[ b,f ]oxepine and dibenzo[ b,f ]thiepine derivatives have been generated in very good to excellent yields. The 1,4‐dicarbonyl functionality of a representative derivative has undergone further heterocyclization via Paal‐Knorr reaction.
Topics & Concepts
Intramolecular forceChemistryCarbeneCatalysisMedicinal chemistryDerivative (finance)Combinatorial chemistryStereochemistryOrganic chemistryFinancial economicsEconomicsN-Heterocyclic Carbenes in Organic and Inorganic ChemistryCatalytic Cross-Coupling ReactionsSynthetic Organic Chemistry Methods