M. Kantam, C. V. Reddy, P. Srinivas
2013
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Abstract
This review covers the recent recyclable protocols for the C–N bond forming reactions between aromatic, heterocyclic and aliphatic amines such as imidazoles, benzimidazoles, benzylamines, piperidine, pyrrole, imides, anilines, hexyl, cyclohexyl amines, and amides as coupling partners with aryl iodides, bromides, chlorides, and arylboronic acids employing copper-mediated systems. The physical properties and characterization of the catalysts and their use in organic synthesis will be outlined. Most importantly, these recyclable versions developed by many groups in the recent years are potential candidates for commercial exploitation. The effect of additives, solvents, temperature, base, the nature of aryl halides on reactivity, and recycle studies of the heterogeneous catalysts are included in this review. We believe that this information is beneficial for the people who are doing similar studies in this field. Catalyst optimization is of critical importance to catalyst development, thus the information we have included in this review contains very valuable information for the newcomers to the field. To our knowledge this is the first review that covers the title chemistry.