Solvent‐ and Catalyst‐Free Aza‐Michael Addition of Imidazoles and Related Heterocycles
Katharina Kodolitsch, Florian Gobec, Christian Slugovc
Abstract
This work demonstrates the scope and limitations of the aza‐Michael addition of imidazoles and related heterocycles with electron deficient olefins under solvent‐ and catalyst‐free conditions. The reaction proceeds at 80 °C within hours towards completion as long as the azole derivative is sufficiently soluble in the Michael acceptor, which has been used in small excess. Workup only comprises evaporation of surplus Michael‐acceptor, and no additional solvents are necessary for purifying the products.
Topics & Concepts
Michael reactionChemistryCatalysisAcceptorOrganic chemistryAzoleSolventPolar effectCombinatorial chemistryPhysicsCondensed matter physicsDermatologyAntifungalMedicineSynthesis and Biological EvaluationChemical Synthesis and AnalysisCatalytic C–H Functionalization Methods