“…9 We attempted to study the amination of esters by using CuBr2 in a solvent-free condition, as part of our lab green chemistry approach for synthesis of pharmaceuticals. 20,21 Herein, we report wide substrate scope studies of α-amination of esters using CuBr2 as a catalyst in presence NMO as a pharmaceutically acceptable oxidant, 26,27 in a solvent-free condition.…”