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Beller, Matthias
Cui, Xinjiang
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Dyson, Paul J.
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dehydrogenation
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amines
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cobalt
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heterogeneous catalysis
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Selective Acceptorless Dehydrogenation of Primary Amines to Imines by Core-Shell Cobalt Nanoparticles
(
Weinheim : Wiley-VCH,
2020
)
Cui, Xinjiang
;
Li, Wu
;
Junge, Kathrin
;
Fei, Zhaofu
;
Beller, Matthias
;
Dyson, Paul J.
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Core–shell nanocatalysts are attractive due to their versatility and stability. Here, we describe cobalt nanoparticles encapsulated within graphitic shells prepared via the pyrolysis of a cationic poly-ionic liquid (PIL) with a cobalt(II) chloride anion. The resulting material has a core–shell structure that displays excellent activity and selectivity in the self-dehydrogenation and hetero-dehydrogenation of primary amines to their corresponding imines. Furthermore, the catalyst exhibits excellent activity in the synthesis of secondary imines from substrates with various reducible functional groups (C=C, C≡C and C≡N) and amino acid derivatives. © 2020 The Authors. Published by Wiley-VCH Verlag GmbH & Co. KGaA.
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