Immobilized piperazine on the surface of graphene oxide as a heterogeneous bifunctional acid–base catalyst for the multicomponent synthesis of 2-amino-3-cyano-4<i>H</i>-chromenes
Asma Khazaee, Roya Jahanshahi, Sara Sobhani, Jørgen Skibsted, José M. Sansano
Abstract
A green method for the efficient synthesis of 2-amino-3-cyano-4<italic>H</italic>-chromenes using immobilized piperazine on the surface of graphene oxide (piperazine-GO) as a new heterogeneous bifunctional acid–base catalyst is developed.
Topics & Concepts
BifunctionalPiperazineGrapheneCatalysisOxideBase (topology)ChemistryCombinatorial chemistryBifunctional catalystOrganic chemistryNanotechnologyMaterials scienceMathematicsMathematical analysisMulticomponent Synthesis of HeterocyclesChemistry and Chemical EngineeringNanomaterials for catalytic reactions