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A General Catalyst Based on Cobalt Core-Shell Nanoparticles for the Hydrogenation of N-Heteroarenes Including Pyridines.

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.

SUBMITTER: Murugesan K 

PROVIDER: S-EPMC7540604 | biostudies-literature | 2020 Jun

REPOSITORIES: biostudies-literature

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A General Catalyst Based on Cobalt Core-Shell Nanoparticles for the Hydrogenation of N-Heteroarenes Including Pyridines.

Murugesan Kathiravan K   Chandrashekhar Vishwas G VG   Kreyenschulte Carsten C   Beller Matthias M   Jagadeesh Rajenahally V RV  

Angewandte Chemie (International ed. in English) 20200817 40

Herein, we report the synthesis of specific silica-supported Co/Co<sub>3</sub> O<sub>4</sub> 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,  ...[more]

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