Inorganic Reagents in photochemical Reactions

Abstract

Inorganic reagents are safe, low-cost, easy to store, and easy to remove after a reaction. These properties make them attractive for direct use in organic synthesis. Inorganic reagents can serve as radical initiators, H/D sources, nucleophiles, radical precursors, C1 synthons, S sources and oxidizing agents in organic photochemical reactions under mild and environmentally friendly conditions. Key inorganic reagents discussed include HCO2Na/K, NaH2PO2, CF3SO2Na, HCF2SO2Na, RSO2Na, EtO2CCO2K, CO, CO2, NH3, NH4OAc, NaN3, Cu(NO3)2, H2O, D2O, O2 (or air), AgSCF3, MSCN/MSeCN (M=Na, K, NH4), K2S, S8, Se, Na2S2O5, K2S2O5, NaCl, KCl, MgCl2, KBr and KHF2. This review highlights the benefits of combining inorganic reagents with organic photochemical reactions, such as low cost, safety, and simplicity, in line with green chemistry principles.