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Multidimensional Screening Accelerates the Discovery of Rhodium Catalyst Systems for Selective Intra- and Intermolecular C-H Amidations

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Title
Multidimensional Screening Accelerates the Discovery of Rhodium Catalyst Systems for Selective Intra- and Intermolecular C-H Amidations
Author(s)
Jiwoo Jeong; Hoimin Jung; Dongwook Kim; Sukbok Chang
Publication Date
2022-07
Journal
ACS CATALYSIS, v.12, no.13, pp.8127 - 8138
Publisher
AMER CHEMICAL SOC
Abstract
We report herein a series of tailored (CpRh)-Rh-X(LX)Cl catalyst systems for the outer-sphere C-H amidations discovered by high-throughput experimentation. Using a diverse repertoire of Cp-tunable group 9 [(CpXCl2)-Cl-M](2) precatalysts in combination with bidentate LX-type co-ligands, we have established a premixing protocol for the fast and convenient in situ generation of an array of half- sandwich metal complexes. Benefitting from the designed multidimensional approach to simultaneously screen the metal center, Cp-X, LX-type co-ligands, and nitrene precursors, optimal CpXRh(III)(LX) catalysts were quickly identified for intra- and intermolecular C-H amidations and also for an enantioselective transformation using N-tosyloxycarbamates as the nitrenoid precursor.
URI
https://pr.ibs.re.kr/handle/8788114/12175
DOI
10.1021/acscatal.2c02612
ISSN
2155-5435
Appears in Collections:
Center for Catalytic Hydrocarbon Functionalizations(분자활성 촉매반응 연구단) > 1. Journal Papers (저널논문)
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