Photosensitized [4+2]‐ and [2+2]‐Cycloaddition Reactions of <i>N</i>‐Sulfonylimines
Wang Wang, M. Kevin Brown
Abstract
The synthesis of polycyclic compounds is of high interest due to the prevalence of these motifs in drugs and natural products. Herein, we report on the stereoselective construction of 3D bicyclic scaffolds and azetidine derivatives by modulation of N-sulfonylimines to achieve either [4+2]- or [2+2]-cycloaddition reactions. The utility of the method was established by further modulation of the product. Mechanistic studies are also included, which support reaction via Dexter energy transfer.
Topics & Concepts
CycloadditionAzetidineChemistryBicyclic moleculeNatural productStereoselectivityCombinatorial chemistryOrganic chemistryComputational chemistryCatalysisSynthesis and Catalytic ReactionsCatalytic C–H Functionalization MethodsSulfur-Based Synthesis Techniques