Redox-Neutral α-Oxygenation of Amines: Reaction Development and Elucidation of the Mechanism
作者:Matthew T. Richers、Martin Breugst、Alena Yu. Platonova、Anja Ullrich、Arne Dieckmann、K. N. Houk、Daniel Seidel
DOI:10.1021/ja501988b
日期:2014.4.23
secondary amines and 2-hydroxybenzaldehydes or related ketones react to furnish benzo[e][1,3]oxazine structures in generally good yields. This overall redox-neutral amine α-C–H functionalization features a combined reductive N-alkylation/oxidative α-functionalization and is catalyzed by acetic acid. In contrast to previous reports, no external oxidants or metal catalysts are required. Reactions performed