Development of chemoselective photoreduction of nitro compounds under solar light and blue LED irradiation

Solar light and blue light irradiation of the commercially available heterogeneous nano photocatalyst TiO2–P25 leads to reduction of nitro compounds to give the corresponding amines. The methodology provides a green and mild approach to this useful class of organic compounds. Aromatic nitro compounds containing a wide range of functional groups tolerated the conditions to give, chemoselectively the corresponding amines in excellent yields.