Azo bond hydrogenation with hydrazine, R-NHNH2, and hydrazobenzene
Date of Original Version
Hydrogenation of azo bonds with hydrazine, mono-substituted hydrazine, and hydrazobenzene was studied with selected diazene compounds under oxygen-free conditions. The reactions proceed rapidly and in high yield in several solvents, utilizing all N-H protons. While the reduction process is accompanied by the evolution of nitrogen gas in the case of N2H4, the intermediacy of diimide could not be confirmed by standard trapping experiments. © 2008 Elsevier Ltd.
Koppes, William M., Jesse S. Moran, Jimmie C. Oxley, and James L. Smith. "Azo bond hydrogenation with hydrazine, R-NHNH2, and hydrazobenzene." Tetrahedron Letters 49, 20 (2008): 3234-3237. doi:10.1016/j.tetlet.2008.03.083.