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Versatile Cp*Co(III)(LX) Catalyst System for Selective Intramolecular C-H Amidation Reactions

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Title
Versatile Cp*Co(III)(LX) Catalyst System for Selective Intramolecular C-H Amidation Reactions
Author(s)
Jia Lee; Jeonghyo Lee; Hoimin Jung; Dongwook Kim; Juhyeon Park; Sukbok Chang
Subject
GAMMA-LACTAMS, ; AMINATION, ; FUNCTIONALIZATION, ; HETEROCYCLES, ; DERIVATIVES, ; CONVERSION, ; INSERTION, ; MILD, ; ARYL
Publication Date
2020-07
Journal
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, v.142, no.28, pp.12324 - 12332
Publisher
AMER CHEMICAL SOC
Abstract
© 2020 American Chemical Society Herein, we report the development of a tailored cobalt catalyst system of Cp*Co(III)(LX) toward intramolecular C-H nitrene insertion of azidoformates to afford cyclic carbamates. The cobalt complexes were easy to prepare and bench-stable, thus offering a convenient reaction protocol. The catalytic reactivity was significantly improved by the electronic tuning of the bidentate LX ligands, and the observed regioselectivity was rationalized by the conformational analysis and DFT calculations of the transition states. The superior performance of the newly developed cobalt catalyst system could be broadly applied to both C(sp2)-H and C(sp3)-H carbamation reactions under mild conditions
URI
https://pr.ibs.re.kr/handle/8788114/7760
DOI
10.1021/jacs.0c04448
ISSN
0002-7863
Appears in Collections:
Center for Catalytic Hydrocarbon Functionalizations(분자활성 촉매반응 연구단) > 1. Journal Papers (저널논문)
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