Enantioselective Synthesis of Dihydrobenzofurans, Dihydrobenzosulfones, and Dihydroindoles by Merging One‐pot Intramolecular Heck‐Matsuda Reactions from Anilines with Redox‐Relay Process
A one-pot tandem protocol is reported for the enantioselective Pd-catalyzed synthesis of dihydrobenzofuran, dihydroindole, and dihydrobenzosulfone scaffolds by a Heck-Matsuda reaction under open-flask conditions with in situ generation of aryldiazonium salt directly from anilines. The enantioenriched heterocycles are synthesized in overall yields up to 78 % in enantiomeric ratios up to 99 : 1 by a