Pd-catalyzed annulation of imidazo[1,2-<i>a</i>]pyridines with coumarins and indoles: synthesis of benzofuran and indole fused heterocycles
Rashmi Semwal, Gaurav Badhani, Subbarayappa Adimurthy
Abstract
]pyridines is essential for the annulation than the alkyl groups. Both transformations follow the ionic mechanism by Pd-catalyzed double C-H bond activation. All the annulated products were shown to exhibit high fluorescence characteristics and their photophysical properties were evaluated.
Topics & Concepts
AnnulationChemistryBenzofuranIndole testCatalysisImidazopyridinePalladiumRing (chemistry)PyridineConjugated systemMedicinal chemistryCombinatorial chemistryOrganic chemistryPolymerCatalytic C–H Functionalization MethodsCatalytic Cross-Coupling ReactionsCyclopropane Reaction Mechanisms