Photochemical Oxidation Specific to Distorted Aromatic Amines Providing <i>ortho</i>-Diketones
Martin Jakubec, Susanne Hansen-Troøyen, Ivana Cı́sařová, Ján Sýkora, Jan Storch
Abstract
-diketones is described. It is shown that the oxidation of amines proceeds via [2 + 2]-cycloaddition reaction with singlet oxygen as an oxidizer and the reaction is specific to distorted aromatic systems. The versatility of the prepared diketones and tetraketones was proven in several heterocycle-forming reactions. The observed adjustment of the physicochemical properties of original molecules is valuable for further development of functional molecules based on helicenes.
Topics & Concepts
ChemistrySinglet oxygenCycloadditionMoleculePhotochemistryCombinatorial chemistrySinglet stateOxygenOrganic chemistryCatalysisPhysicsNuclear physicsExcited stateSynthesis and Properties of Aromatic CompoundsPhotochromic and Fluorescence ChemistryPorphyrin and Phthalocyanine Chemistry