Visible light mediated synthesis of 6<i>H</i>-benzo[<i>c</i>]chromenes: transition-metal-free intramolecular direct C–H arylation
Micaela D. Heredia, Marcelo Puiatti, Roberto A. Rossi, María E. Budén
Abstract
]chromenes are also effectively obtained. An electron donor-acceptor complex formed by the dimsyl anion and (2-halobenzyl) phenyl ethers was found and it induces the ET as the initial step in the photocyclization reaction. Furthermore, in order to explain the regiochemical outcome of this reaction, a theoretical analysis was performed using DFT methods.
Topics & Concepts
ChemistryIntramolecular forceTransition metalVisible spectrumRing (chemistry)StereochemistryMetalPhotochemistryComputational chemistryCombinatorial chemistryOrganic chemistryCatalysisOptoelectronicsPhysicsCatalytic C–H Functionalization MethodsRadical Photochemical ReactionsSulfur-Based Synthesis Techniques