Synthesis of 3,3-Dihalogenated 2-Aminochromanones via Tandem Dihalogenation and Cyclization of <i>o</i>-Hydroxyarylenaminones with NXS (X = Cl or Br)
Tian Luo, Haozhi Wu, Lihua Liao, Jie‐Ping Wan, Yunyun Liu
Abstract
An unprecedented method for the synthesis of dichlorinated and dibrominated 2-amino-substituted chromanones is developed by employing enaminones and NCS/NBS as starting materials under microwave irradiation. The reactions proceed quickly to deliver products without using any catalyst or additive, thus providing practical access to 3,3-dihalogenated 2-aminochromanones.
Topics & Concepts
ChemistryTandemMicrowave irradiationCatalysisCombinatorial chemistryOrganic chemistryComposite materialMaterials scienceCatalytic C–H Functionalization MethodsOxidative Organic Chemistry ReactionsSynthesis and Biological Evaluation