Sustainable, precious metal-free C-N cross coupling through photocatalysis

Photoredox catalysis has evolved out as one of the sustainable ways of constructing C-N bond. Herein, reported a visible-light organic photoredox catalyzed method that enables C-N cross coupling under mild and sustainable reaction condition. This catalytic system worked for both activated, unactivated amines and electron rich or deficient aryl bromides with broad range of functional group tolerance in good to excellent yields. The noteworthy aspects, milder reaction condition at room temperature without addition of any additional ligand make the procedure attractive.