Photocatalyst‐Free Visible‐Light Enabled Synthesis of Substituted Pyrroles from <i>α</i>‐Keto Vinyl Azides
Satheesh Borra, Lodsna Borkotoky, Uma Devi Newar, Babulal Das, Ram Awatar Maurya
Abstract
Abstract An efficient photocatalyst‐free visible light enabled synthesis of substituted pyrroles from α‐keto vinyl azides (readily prepared via Knoevenagel condensation of phenacyl azides with 2‐oxo‐2 H ‐chromene‐3‐carbaldehydes) was developed. The reaction proceeds through a denitrogenative photodecomposition of α‐keto vinyl azides, 1,3‐amino group migration, and coupling of intermediates with secondary amines. magnified image
Topics & Concepts
ChemistryKnoevenagel condensationPhotocatalysisPhenacylVisible spectrumPhotochemistryOrganic chemistryCombinatorial chemistryPolymer chemistryCatalysisOptoelectronicsPhysicsRadical Photochemical ReactionsCatalytic C–H Functionalization MethodsFluorine in Organic Chemistry