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Selective C(sp<sup>2</sup>)-H Amination Catalyzed by High-Valent Cobalt(III)/(IV)-bpy Complex Immobilized on Silica Nanoparticles

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dc.contributor.author Budnikova Y.
dc.contributor.author Bochkova O.
dc.contributor.author Khrizanforov M.
dc.contributor.author Nizameev I.
dc.contributor.author Kholin K.
dc.contributor.author Gryaznova T.
dc.contributor.author Laskin A.
dc.contributor.author Dudkina Y.
dc.contributor.author Strekalova S.
dc.contributor.author Fedorenko S.
dc.contributor.author Kononov A.
dc.contributor.author Mustafina A.
dc.date.accessioned 2020-01-15T21:56:24Z
dc.date.available 2020-01-15T21:56:24Z
dc.date.issued 2019
dc.identifier.issn 1867-3880
dc.identifier.uri https://dspace.kpfu.ru/xmlui/handle/net/156428
dc.description.abstract © 2019 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim High-valent cobaltIV-bpy complex stabilized in silica matrix was detected as catalytically active form and intermediate in cobalt-mediated oxidative C−H/NH cross-coupling reaction. These CoIV species prepared by electrooxidation of CoIII(bpy)3-doped silica nanoparticles (SNs) at relatively low anodic potentials have demonstrated high catalytic activity. Both size and architecture of the SNs are highlighted as the factors beyond the complex structure affecting its oxidation potential and catalytic efficiency. The factors have been optimized for the catalyst with high efficiency, easy separation and reusability for 7 times at least. The optimal nanocatalyst (1 mol%) provides 100 % conversion of reactants in a single step of ligand-directed coupling of H2NTs with arenes under electrochemical regeneration conditions. The results emphasize both synthetic route for efficient embedding of CoIII(bpy)3 into silica support and the electrochemical generation of CoIV complexes as a facile route for developing the efficient nanocatalyst of oxidative functionalization. The observed reactivity has the potential in development of Co-catalyzed coupling reactions.
dc.relation.ispartofseries ChemCatChem
dc.subject cobalt
dc.subject electrochemistry
dc.subject heterogeneous catalysis
dc.subject oxidation
dc.subject supported catalysts
dc.title Selective C(sp<sup>2</sup>)-H Amination Catalyzed by High-Valent Cobalt(III)/(IV)-bpy Complex Immobilized on Silica Nanoparticles
dc.type Article
dc.relation.ispartofseries-issue 22
dc.relation.ispartofseries-volume 11
dc.collection Публикации сотрудников КФУ
dc.relation.startpage 5615
dc.source.id SCOPUS18673880-2019-11-22-SID85074404945


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  • Публикации сотрудников КФУ Scopus [24551]
    Коллекция содержит публикации сотрудников Казанского федерального (до 2010 года Казанского государственного) университета, проиндексированные в БД Scopus, начиная с 1970г.

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