A highly efficient one-pot procedure for the synthesis of indolines and their homologues based on a domino Cu-catalyzed amidation/nucleophilic substitution reaction has been developed. Substituted 2-iodophenethyl mesylates and related compounds afforded the corresponding products in excellent yields. No erosion of optical purity was observed when transforming enantiomerically pure mesylates under the reaction conditions.
“Synthesis of Indolines via a Domino Cu-Catalyzed Amidation/Cyclization Reaction”, Org. Lett., 2008, 10(13), 2721-2724.