Synthesis of 2‐Arylquinolines from 2‐Iodoanilines and β‐Chloropropiophenones via Palladium‐Catalyzed Cascade Reaction

Abstract

AbstractA protocol to access 2‐aryl‐substituted quinolines from readily available 2‐iodoanilines and β‐chloropropiophenones, which are synthetic equivalents of acrylophenones, has been developed via the palladium‐catalyzed cascade reaction. Various 2‐iodoanilines and β‐chloropropiophenones were applicable to this protocol to afford the desired quinoline products in good to high yields. Moreover, we demonstrated the usefulness of this protocol in direct synthesis of chloride‐bridged dimeric iridium complexes, one of the key intermediates in the synthesis of iridium‐based phosphorous materials, without the complete isolation of the quinolines.