Synthesis of New Secondary Amines and Their In Situ Catalytic Activity in Transfer Hydrogenation of Ketones and Antioxidant Properties

New secondary amine derivatives were synthesized by reduction of the corresponding Schiff bases with NaBH4. The reaction conditions were optimized to examine the in situ catalytic activity of the synthesized secondary amines in transfer hydrogenation reactions of substituted acetophenones. In addition, antioxidant activities of all secondary amines were evaluated by the DPPH method in comparison with the activities of the related Schiff bases obtained in previous studies, as well as with BHT and BHA used as positive controls.