Gold-Catalyzed 1,2-Aminoarylation of Alkenes with External Amines

Reported herein is the gold-catalyzed 1,2-aminoarylation of alkenes that engages external amine as a coupling partner. Careful optimization studies revealed a significant role of the concentration of base to achieve highly chemoselective access to the aminoarylation products over potential C–N cross-coupled products. Overcoming all the limitations, the current strategy provided straightforward access to the medicinally relevant 3-aminochroman, 2-aminotetra­hydro­naphthalene, and 2-aminoindane derivatives.