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This study describes the palladium‐catalyzed chemoselective amination of chloro(hetero)aryl triflates in the C−Cl bond for the first time. A newly designed and synthesized alkyl‐pyrazole‐based phosphine ligand, L26 (BirdPhos), which is featured with the pyrazole ligand core and the cyclohexyl group at the C3 and C5 positions, was key to the success of this reaction. A variety of chloro(hetero)aryl...
Over the past two decades, considerable attention has been given to the development of new ligands for the palladium‐catalyzed arylation of amines and related NH‐containing substrates (i.e., Buchwald–Hartwig amination). The generation of structurally diverse ligands, by research groups in both academia and industry, has facilitated the accommodation of sterically and electronically divergent substrates...
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