Yang H, Zhang X, Si J. Ligand-free CuSO4-Catalyzed C-N Coupling Reaction of Aryl Halides with Alkylamines or N-heterocycles in Aqueous Solution System. ajc [Internet]. 2013 May 3 [cited 2024 Jul. 17];25(10):5647-8. Available from: https://asianpubs.org/index.php/ajchem/article/view/25_10_100