A General Catalyst Based on Cobalt Core–Shell Nanoparticles for the Hydrogenation of N‐Heteroarenes Including Pyridines. (18th August 2020)

• Record Type: Journal Article
• Authors: Murugesan, Kathiravan; Chandrashekhar, Vishwas G.; Kreyenschulte, Carsten; Beller, Matthias; Jagadeesh, Rajenahally V.
• Is Part Of: Angewandte Chemie. Volume 132:Number 40(2020)
• Page Start: 17561
• Page End: 17565
• Publication Date: 2020-08-18
• Subjects: Co nanoparticles -- hydrogenation -- N-heteroarenes -- pyridines -- quinolines; Chemistry -- Periodicals; 540
• DOI: 10.1002/ange.202004674
• Languages: English
• ISSNs: 0044-8249

Abstract

Abstract: Herein, we report the synthesis of specific silica‐supported Co/Co3 O4 core–shell based nanoparticles prepared by template synthesis of cobalt‐pyromellitic acid on silica and subsequent pyrolysis. The optimal catalyst material allows for general and selective hydrogenation of pyridines, quinolines, and other heteroarenes including acridine, phenanthroline, naphthyridine, quinoxaline, imidazo[1, 2‐a]pyridine, and indole under comparably mild reaction conditions. In addition, recycling of these Co nanoparticles and their ability for dehydrogenation catalysis are showcased. Abstract : One fits all : Co/Co3 O4 core–shell nanoparticles prepared by pyrolysis of a Co‐pyromellitic acid template on silica served as stable and reusable catalysts for the selective hydrogenation of pyridines, quinolines, and other heteroarenes.