Aerobic oxidative coupling of alcohols and amines towards imine formation by a dicopper(I,I) catalyst

Publication date: 1 November 2017 Source:Journal of Organometallic Chemistry, Volumes 849–850 Author(s): Indranil Dutta, Subhabrata De, Sudhir Yadav, Ranajit Mondol, Jitendra K. Bera A dicopper(I,I) complex [Cu2(L1) (Cl)2] (1), bearing a Cu2Cl2 core spanned by a naphthyridine–diimine ligand is synthesized by the treatment of CuCl with 2,7–bis(N–mesitylmethylimino)–1,8–naphthyridine (L1). The catalytic efficacy of 1 is assessed for aerobic oxidative synthesis of imines from alcohols and amines. The title complex is found to be an excellent catalyst for a wide variety of alcohols and amines. Kinetic experiments revealed the involvement of both copper ions in the aerobic oxidation process. The general utility of naphthyridine based ligands to favour a possible bimetallic pathway for a catalytic reaction is demonstrated here. Graphical abstract
Source: Journal of Organometallic Chemistry - Category: Chemistry Source Type: research
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