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Cui B, Zheng Y, Sun H, Shang H, Du M, Shang Y, Yavuz CT. Catalytic enantioselective intramolecular hydroamination of alkenes using chiral aprotic cyclic urea ligand on manganese (II). Nat Commun 2024; 15:6647. [PMID: 39103345 DOI: 10.1038/s41467-024-50757-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2024] [Accepted: 07/18/2024] [Indexed: 08/07/2024] Open
Abstract
Asymmetric catalysis for enantioselective intramolecular hydroamination of alkenes is a critical method in the construction of enantioenriched nitrogen-containing rings, often prevalent in biologically active compounds and natural products. Herein, we demonstrate a facile enantioselective intramolecular hydroamination of alkenes for the synthesis of chiral pyrrolidine, piperidine, and indoline moieties, using a manganese (II) chiral aprotic cyclic urea catalyst. The cyclic ligand hinders the inversion of the N atom of the urea and effectively discriminate between the enantiomers of substrates. High-resolution mass spectrometry, deuterium labeling experiments, and molecular orbital energy analysis clearly reveal the intermediates and mechanism of the transformation. As a key step, oxygen coordination by chiral aprotic urea presents a robust control over the asymmetric intra-HA reaction through the involvement of a convergent assembly of two vital intermediates (Mn-N and C-Mn-Br), providing access to chiral cyclic amine systems in high yields with excellent enantioselectivity.
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Affiliation(s)
- Bin Cui
- Manganese Catalysis and Asymmetric Synthesis Laboratory, College of Chemistry and Pharmaceutical Engineering, Hebei University of Science and Technology, Shijiazhuang, P. R. China
| | - Yuting Zheng
- Manganese Catalysis and Asymmetric Synthesis Laboratory, College of Chemistry and Pharmaceutical Engineering, Hebei University of Science and Technology, Shijiazhuang, P. R. China
| | - Hui Sun
- Manganese Catalysis and Asymmetric Synthesis Laboratory, College of Chemistry and Pharmaceutical Engineering, Hebei University of Science and Technology, Shijiazhuang, P. R. China.
| | - Huijian Shang
- Manganese Catalysis and Asymmetric Synthesis Laboratory, College of Chemistry and Pharmaceutical Engineering, Hebei University of Science and Technology, Shijiazhuang, P. R. China
| | - Man Du
- Manganese Catalysis and Asymmetric Synthesis Laboratory, College of Chemistry and Pharmaceutical Engineering, Hebei University of Science and Technology, Shijiazhuang, P. R. China
| | - Yuxuan Shang
- Oxide & Organic Nanomaterials for Energy & Environment Laboratory, Physical Science & Engineering (PSE), King Abdullah University of Science and Technology (KAUST), Thuwal, Saudi Arabia.
| | - Cafer T Yavuz
- Oxide & Organic Nanomaterials for Energy & Environment Laboratory, Physical Science & Engineering (PSE), King Abdullah University of Science and Technology (KAUST), Thuwal, Saudi Arabia.
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Tang L, Shen C, Hao S, Dong K. A Type of Chiral C 2-Symmetric Arylthiol Catalyst for Highly Enantioselective Anti-Markovnikov Hydroamination. J Am Chem Soc 2024; 146:16248-16256. [PMID: 38808533 DOI: 10.1021/jacs.4c04596] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/30/2024]
Abstract
The development of chiral hydrogen donor catalysts is fundamental in the expansion and innovation of asymmetric organocatalyzed reactions via an enantioselective hydrogen atom transfer (HAT) process. Herein, an unprecedented type of chiral C2-symmetric arylthiol catalysts derived from readily available enantiomeric lactate ester was developed. With these catalysts, an asymmetric anti-Markovnikov alkene hydroamination-cyclization reaction was established, affording a variety of pharmaceutically interesting 3-substituted piperidines with moderate to high enantioselectivity. Results of the designed control experiments and theoretical computation rationalized the origin of stereocontrol and disclosed the spatial effect of the moiety of chiral thiols on the enantioselectivity. We believed the facile synthesis, flexible tunability, and effective enantioselectivity-controlling capability of these catalysts would shed light on the development of versatile chiral HAT catalysts and related asymmetric reactions.
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Affiliation(s)
- Lin Tang
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, State Key Laboratory of Petroleum Molecular & Process Engineering, School of Chemistry and Molecular Engineering, East China Normal University, Shanghai 200062, China
| | - Chaoren Shen
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, State Key Laboratory of Petroleum Molecular & Process Engineering, School of Chemistry and Molecular Engineering, East China Normal University, Shanghai 200062, China
| | - Shaoyu Hao
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, State Key Laboratory of Petroleum Molecular & Process Engineering, School of Chemistry and Molecular Engineering, East China Normal University, Shanghai 200062, China
| | - Kaiwu Dong
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, State Key Laboratory of Petroleum Molecular & Process Engineering, School of Chemistry and Molecular Engineering, East China Normal University, Shanghai 200062, China
- Chang-Kung Chuang Institute, School of Chemistry and Molecular Engineering, East China Normal University, Shanghai 200062, China
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3
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Coordination Versatility of NHC-metal Topologies in Asymmetric Catalysis: Synthetic Insights and Recent Trends. Coord Chem Rev 2023. [DOI: 10.1016/j.ccr.2022.214922] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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Ring-Opening Metathesis Polymerization and Related Olefin Metathesis Reactions in Benzotrifluoride as an Environmentally Advantageous Medium. Int J Mol Sci 2022; 24:ijms24010671. [PMID: 36614111 PMCID: PMC9820898 DOI: 10.3390/ijms24010671] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2022] [Revised: 12/23/2022] [Accepted: 12/23/2022] [Indexed: 01/03/2023] Open
Abstract
A tremendous number of solvents, either as liquids or vapors, contaminate the environment on a daily basis worldwide. Olefin metathesis, which has been widely used as high-yielding protocols for ring-opening metathesis polymerization (ROMP), ring-closing metathesis (RCM), and isomerization reactions, is typically performed in toxic and volatile solvents such as dichloromethane. In this study, the results of our systematic experiments with the Grubbs G1, G2, and Hoveyda-Grubbs HG2 catalysts proved that benzotrifluoride (BTF) can replace dichloromethane (DCM) in these reactions, providing high yields and similar or even higher reaction rates in certain cases. The ROMP of norbornene resulted not only in high yields but also in polynorbornenes with a high molecular weight at low catalyst loadings. Ring-closing metathesis (RCM) experiments proved that, with the exception of the G1 catalyst, RCM occurs with similar high efficiencies in BTF as in DCM. It was found that isomerization of (Z)-but-2-ene-1,4-diyl diacetate with the G2 and HG2 catalysts proceeds at significantly higher initial rates in BTF than in DCM, leading to rapid isomerization with high yields in a short time. Overall, BTF is a suitable solvent for olefin metathesis, such as polymer syntheses by ROMP and the ring-closing and isomerization reactions.
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C2-Symmetric N-Heterocyclic Carbenes in Asymmetric Transition-Metal Catalysis. Symmetry (Basel) 2022. [DOI: 10.3390/sym14081615] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
The last decades have witnessed a rapid growth of applications of N-heterocyclic carbenes (NHCs) in different chemistry fields. Due to their unique steric and electronic properties, NHCs have become a powerful tool in coordination chemistry, allowing the preparation of stable metal-ligand frameworks with both main group metals and transition metals. An overview on the use of five membered monodentate C2-symmetric N-heterocyclic carbenes (NHCs) as ligands for transition-metal complexes and their most relevant applications in asymmetric catalysis is offered.
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Wu J, Pang Y, Jiang H, Ma Z. Formal Synthesis of Arboridinine Enabled by a Double-Mannich Reaction. J Org Chem 2022; 87:8223-8228. [PMID: 35670781 DOI: 10.1021/acs.joc.2c00602] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A formal synthesis of arboridinine has been achieved. In this synthesis, a double-Mannich reaction of the complex multisubstituted cyclohexanone was used to form the core skeleton of arboridinine.
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Affiliation(s)
- Jinghua Wu
- Key Lab of Functional Molecular Engineering of Guangdong Province, School of Chemistry & Chemical Engineering, South China University of Technology, Wushan Road-381, Guangzhou 510641, P. R. China
| | - Yubing Pang
- Key Lab of Functional Molecular Engineering of Guangdong Province, School of Chemistry & Chemical Engineering, South China University of Technology, Wushan Road-381, Guangzhou 510641, P. R. China
| | - Huanfeng Jiang
- Key Lab of Functional Molecular Engineering of Guangdong Province, School of Chemistry & Chemical Engineering, South China University of Technology, Wushan Road-381, Guangzhou 510641, P. R. China
| | - Zhiqiang Ma
- Key Lab of Functional Molecular Engineering of Guangdong Province, School of Chemistry & Chemical Engineering, South China University of Technology, Wushan Road-381, Guangzhou 510641, P. R. China.,State Key Laboratory of Chemical Oncogenomics, Guangdong Provincial Key Laboratory of Chemical Genomics, Peking University Shenzhen Graduate School, Shenzhen, Guangdong 518055, P. R. China
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Navarro M, Alférez MG, de Sousa M, Miranda-Pizarro J, Campos J. Dicoordinate Au(I)-Ethylene Complexes as Hydroamination Catalysts. ACS Catal 2022; 12:4227-4241. [PMID: 35391904 PMCID: PMC8981211 DOI: 10.1021/acscatal.1c05823] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2021] [Revised: 03/12/2022] [Indexed: 01/22/2023]
Abstract
A series of gold(I)-ethylene π-complexes containing a family of bulky phosphine ligands has been prepared. The use of these sterically congested ligands is crucial to stabilize the gold(I)-ethylene bond and prevent decomposition, boosting up their catalytic performance in the highly underexplored hydroamination of ethylene. The precatalysts bearing the most sterically demanding phosphines showed the best results reaching full conversion to the hydroaminated products under notably mild conditions (1 bar of ethylene pressure at 60 °C). Kinetic analysis together with density functional theory calculations revealed that the assistance of a second molecule of the nucleophile as a proton shuttle is preferred even when using an extremely congested cavity-shaped Au(I) complex. In addition, we have measured a strong primary kinetic isotopic effect that is consistent with the involvement of X-H bond-breaking events in the protodeauration turnover-limiting step.
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Affiliation(s)
- Miquel Navarro
- Departamento
de Química Inorgánica and Centro de Innovación
en Química Avanzada (ORFEO-CINQA), Instituto de Investigaciones Químicas (IIQ), Consejo Superior
de Investigaciones Científicas (CSIC) and University of Sevilla, Sevilla 41092, Spain
| | - Macarena G. Alférez
- Departamento
de Química Inorgánica and Centro de Innovación
en Química Avanzada (ORFEO-CINQA), Instituto de Investigaciones Químicas (IIQ), Consejo Superior
de Investigaciones Científicas (CSIC) and University of Sevilla, Sevilla 41092, Spain
| | - Morgane de Sousa
- Departamento
de Química Inorgánica and Centro de Innovación
en Química Avanzada (ORFEO-CINQA), Instituto de Investigaciones Químicas (IIQ), Consejo Superior
de Investigaciones Científicas (CSIC) and University of Sevilla, Sevilla 41092, Spain
| | - Juan Miranda-Pizarro
- Departamento
de Química Inorgánica and Centro de Innovación
en Química Avanzada (ORFEO-CINQA), Instituto de Investigaciones Químicas (IIQ), Consejo Superior
de Investigaciones Científicas (CSIC) and University of Sevilla, Sevilla 41092, Spain
| | - Jesús Campos
- Departamento
de Química Inorgánica and Centro de Innovación
en Química Avanzada (ORFEO-CINQA), Instituto de Investigaciones Químicas (IIQ), Consejo Superior
de Investigaciones Científicas (CSIC) and University of Sevilla, Sevilla 41092, Spain
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Li R, Wang X, Peng Y, Xu P, Zhu H, Li Z, Sun X. Unique gold nanocrystals with chiral morphology, chiral ligand and more exposed high-index facet as electrocatalyst for oxidation of glucose enantiomers with ultrahigh enantioselectivity and catalytic activity. Catal Sci Technol 2022. [DOI: 10.1039/d1cy01764k] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Poor enantioselectivity and catalytic activity of chiral metal nanocrystals limit their wide applications in chiral synthesis. The study reports one strategy for synthesis of chiral gold nanocrystals via reduction of...
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Foster D, Borhanuddin SM, Dorta R. Designing successful monodentate N-heterocyclic carbene ligands for asymmetric metal catalysis. Dalton Trans 2021; 50:17467-17477. [PMID: 34787620 DOI: 10.1039/d1dt02951g] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Chiral ligands are of particular importance in asymmetric transition-metal catalysis. Although the development of effective chiral monodentate N-heterocyclic carbenes (NHCs) has been slow, a growing amount of papers have been published in recent years showing their unique efficiency as chiral ancillary ligands. Herein we provide an overview of NHC structures that accomplish high levels of enantioselectivity (≥90% ee) and give guidelines to their use and thoughts on the future of this field.
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Affiliation(s)
- Daven Foster
- Department of Chemistry, School of Molecular Sciences, University of Western Australia, 35 Stirling Highway, 6009 Crawley, Western Australia, Australia.
| | - S M Borhanuddin
- Department of Chemistry, School of Molecular Sciences, University of Western Australia, 35 Stirling Highway, 6009 Crawley, Western Australia, Australia.
| | - Reto Dorta
- Department of Chemistry, School of Molecular Sciences, University of Western Australia, 35 Stirling Highway, 6009 Crawley, Western Australia, Australia.
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