1
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Zhao L, Liu F, Zhuang Y, Shen M, Xue J, Wang X, Zhang Y, Rong ZQ. CoH-catalyzed asymmetric remote hydroalkylation of heterocyclic alkenes: a rapid approach to chiral five-membered S- and O-heterocycles. Chem Sci 2024; 15:8888-8895. [PMID: 38873055 PMCID: PMC11168172 DOI: 10.1039/d4sc01149j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2024] [Accepted: 05/07/2024] [Indexed: 06/15/2024] Open
Abstract
Saturated heterocycles, which incorporate S and O heteroatoms, serve as fundamental frameworks in a diverse array of natural products, bioactive compounds, and pharmaceuticals. Herein, we describe a unique cobalt-catalyzed approach integrated with a desymmetrization strategy, facilitating precise and enantioselective remote hydroalkylation of unactivated heterocyclic alkenes. This method delivers hydroalkylation products with high yields and excellent stereoselectivity, representing good efficiency in constructing alkyl chiral centers at remote C3-positions within five-membered S/O-heterocycles. Notably, the broad scope and good functional group tolerance of this asymmetric C(sp3)-C(sp3) coupling enhance its applicability.
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Affiliation(s)
- Lingzi Zhao
- Frontiers Science Center for Flexible Electronics (FSCFE), Shaanxi Institute of Flexible Electronics (SIFE), Shaanxi Institute of Biomedical Materials and Engineering (SIBME), Northwestern Polytechnical University (NPU) 127 West Youyi Road Xi'an 710072 China
| | - Feipeng Liu
- Frontiers Science Center for Flexible Electronics (FSCFE), Shaanxi Institute of Flexible Electronics (SIFE), Shaanxi Institute of Biomedical Materials and Engineering (SIBME), Northwestern Polytechnical University (NPU) 127 West Youyi Road Xi'an 710072 China
| | - Yan Zhuang
- Frontiers Science Center for Flexible Electronics (FSCFE), Shaanxi Institute of Flexible Electronics (SIFE), Shaanxi Institute of Biomedical Materials and Engineering (SIBME), Northwestern Polytechnical University (NPU) 127 West Youyi Road Xi'an 710072 China
| | - Mengyang Shen
- Frontiers Science Center for Flexible Electronics (FSCFE), Shaanxi Institute of Flexible Electronics (SIFE), Shaanxi Institute of Biomedical Materials and Engineering (SIBME), Northwestern Polytechnical University (NPU) 127 West Youyi Road Xi'an 710072 China
| | - Jing Xue
- Frontiers Science Center for Flexible Electronics (FSCFE), Shaanxi Institute of Flexible Electronics (SIFE), Shaanxi Institute of Biomedical Materials and Engineering (SIBME), Northwestern Polytechnical University (NPU) 127 West Youyi Road Xi'an 710072 China
| | - Xuchao Wang
- Frontiers Science Center for Flexible Electronics (FSCFE), Shaanxi Institute of Flexible Electronics (SIFE), Shaanxi Institute of Biomedical Materials and Engineering (SIBME), Northwestern Polytechnical University (NPU) 127 West Youyi Road Xi'an 710072 China
| | - Yuting Zhang
- Frontiers Science Center for Flexible Electronics (FSCFE), Shaanxi Institute of Flexible Electronics (SIFE), Shaanxi Institute of Biomedical Materials and Engineering (SIBME), Northwestern Polytechnical University (NPU) 127 West Youyi Road Xi'an 710072 China
| | - Zi-Qiang Rong
- Frontiers Science Center for Flexible Electronics (FSCFE), Shaanxi Institute of Flexible Electronics (SIFE), Shaanxi Institute of Biomedical Materials and Engineering (SIBME), Northwestern Polytechnical University (NPU) 127 West Youyi Road Xi'an 710072 China
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2
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Xu S, Mi R, Zheng G, Li X. Cobalt- or rhodium-catalyzed synthesis of 1,2-dihydrophosphete oxides via C-H activation and formal phosphoryl migration. Chem Sci 2024; 15:6012-6021. [PMID: 38665527 PMCID: PMC11040647 DOI: 10.1039/d4sc00649f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2024] [Accepted: 03/11/2024] [Indexed: 04/28/2024] Open
Abstract
A highly stereo- and chemoselective intermolecular coupling of diverse heterocycles with dialkynylphosphine oxides has been realized via cobalt/rhodium-catalyzed C-H bond activation. This protocol provides an efficient synthetic entry to functionalized 1,2-dihydrophosphete oxides in excellent yields via the merger of C-H bond activation and formal 1,2-migration of the phosphoryl group. Compared with traditional methods of synthesis of 1,2-dihydrophosphetes that predominantly relied on stoichiometric metal reagents, this catalytic system features high efficiency, a relatively short reaction time, atom-economy, and operational simplicity. Photophysical properties of selected 1,2-dihydrophosphete oxides are also disclosed.
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Affiliation(s)
- Shengbo Xu
- School of Chemistry and Chemical Engineering, Shaanxi Normal University (SNNU) Xi'an 710062 P. R. China
| | - Ruijie Mi
- Institute of Molecular Science and Engineering, Institute of Frontier and Interdisciplinary Sciences, Shandong University Qingdao 266237 P. R. China
| | - Guangfan Zheng
- Department of Chemistry, Northeast Normal University Changchun 130024 P. R. China
| | - Xingwei Li
- School of Chemistry and Chemical Engineering, Shaanxi Normal University (SNNU) Xi'an 710062 P. R. China
- Institute of Molecular Science and Engineering, Institute of Frontier and Interdisciplinary Sciences, Shandong University Qingdao 266237 P. R. China
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3
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Skrodzki M, Zaranek M, Consiglio G, Pawluć P. Transfer Hydrogenation of Vinyl Arenes and Aryl Acetylenes with Ammonia Borane Catalyzed by Schiff Base Cobalt(II) Complexes. Int J Mol Sci 2024; 25:4363. [PMID: 38673948 PMCID: PMC11050580 DOI: 10.3390/ijms25084363] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2024] [Revised: 04/01/2024] [Accepted: 04/11/2024] [Indexed: 04/28/2024] Open
Abstract
A series of bench-stable Co(II) complexes containing hydrazone Schiff base ligands were evaluated in terms of their activity and selectivity in carbon-carbon multiple bond transfer hydrogenation. These cobalt complexes, especially a Co(II) precatalyst bearing pyridine-2-yl-N(Me)N=C-(1-methyl)imidazole-2-yl ligand, activated by LiHBEt3, were successfully used in the transfer hydrogenation of substituted styrenes and phenylacetylenes with ammonia borane as a hydrogen source. Key advantages of the reported catalytic system include mild reaction conditions, high selectivity and tolerance to functional groups of substrates.
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Affiliation(s)
- Maciej Skrodzki
- Faculty of Chemistry, Adam Mickiewicz University, Uniwersytetu Poznańskiego 8, 61-614 Poznań, Poland;
- Centre for Advanced Technologies, Adam Mickiewicz University, Uniwersytetu Poznańskiego 10, 61-614 Poznań, Poland;
| | - Maciej Zaranek
- Centre for Advanced Technologies, Adam Mickiewicz University, Uniwersytetu Poznańskiego 10, 61-614 Poznań, Poland;
| | - Giuseppe Consiglio
- Department of Chemical Science, University of Catania, Via S. Sofia 64, 95125 Catania, Italy
| | - Piotr Pawluć
- Faculty of Chemistry, Adam Mickiewicz University, Uniwersytetu Poznańskiego 8, 61-614 Poznań, Poland;
- Centre for Advanced Technologies, Adam Mickiewicz University, Uniwersytetu Poznańskiego 10, 61-614 Poznań, Poland;
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4
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Geng S, Pu Y, Wang S, Ji Y, Feng Z. Advances in disilylation reactions to access cis/ trans-1,2-disilylated and gem-disilylated alkenes. Chem Commun (Camb) 2024; 60:3484-3506. [PMID: 38469709 DOI: 10.1039/d4cc00288a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/13/2024]
Abstract
Organosilane compounds are widely used in both organic synthesis and materials science. Particularly, 1,2-disilylated and gem-disilylated alkenes, characterized by a carbon-carbon double bond and multiple silyl groups, exhibit significant potential for subsequently diverse transformations. The versatility of these compounds renders them highly promising for applications in materials, enabling them to be valuable and versatile building blocks in organic synthesis. This review provides a comprehensive summary of methods for the preparation of cis/trans-1,2-disilylated and gem-disilylated alkenes. Despite notable advancements in this field, certain limitations persist, including challenges related to regioselectivity in the incorporation and chemoselectivity in the transformation of two nearly identical silyl groups. The primary objective of this review is to outline synthetic methodologies for the generation of these alkenes through disilylation reactions, employing silicon reagents, specifically disilanes, hydrosilanes, and silylborane reagents. The review places particular emphasis on investigating the practical applications of the C-Si bond of disilylalkenes and delves into an in-depth discussion of reaction mechanisms, particularly those reactions involving the activation of Si-Si, Si-H, and Si-B bonds, as well as the C-Si bond formation.
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Affiliation(s)
- Shasha Geng
- Chongqing Key Laboratory of Natural Product Synthesis and Drug Research, Chemical Biology Research Center, School of Pharmaceutical Sciences, Chongqing University, Chongqing 401331, P. R. China.
| | - Yu Pu
- Sichuan Key Laboratory of Medical Imaging, North Sichuan Medical College, Nanchong, Sichuan 637000, P. R. China
| | - Siyu Wang
- Chongqing Key Laboratory of Natural Product Synthesis and Drug Research, Chemical Biology Research Center, School of Pharmaceutical Sciences, Chongqing University, Chongqing 401331, P. R. China.
| | - Yanru Ji
- Sichuan Key Laboratory of Medical Imaging, North Sichuan Medical College, Nanchong, Sichuan 637000, P. R. China
| | - Zhang Feng
- Chongqing Key Laboratory of Natural Product Synthesis and Drug Research, Chemical Biology Research Center, School of Pharmaceutical Sciences, Chongqing University, Chongqing 401331, P. R. China.
- Sichuan Key Laboratory of Medical Imaging, North Sichuan Medical College, Nanchong, Sichuan 637000, P. R. China
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5
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Wen J, Huang Y, Zhang Y, Grützmacher H, Hu P. Cobalt catalyzed practical hydroboration of terminal alkynes with time-dependent stereoselectivity. Nat Commun 2024; 15:2208. [PMID: 38467660 PMCID: PMC10928171 DOI: 10.1038/s41467-024-46550-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2023] [Accepted: 03/01/2024] [Indexed: 03/13/2024] Open
Abstract
Stereodefined vinylboron compounds are important organic synthons. The synthesis of E-1-vinylboron compounds typically involves the addition of a B-H bond to terminal alkynes. The selective generation of the thermodynamically unfavorable Z-isomers remains challenging, necessitating improved methods. Here, such a proficient and cost-effective catalytic system is introduced, comprising a cobalt salt and a readily accessible air-stable CNC pincer ligand. This system enables the transformation of terminal alkynes, even in the presence of bulky substituents, with excellent Z-selectivity. High turnover numbers (>1,600) and turnover frequencies (>132,000 h-1) are achieved at room temperature, and the reaction can be scaled up to 30 mmol smoothly. Kinetic studies reveal a formal second-order dependence on cobalt concentration. Mechanistic investigations indicate that the alkynes exhibit a higher affinity for the catalyst than the alkene products, resulting in exceptional Z-selective performance. Furthermore, a rare time-dependent stereoselectivity is observed, allowing for quantitative conversion of Z-vinylboronate esters to the E-isomers.
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Affiliation(s)
- Jinglan Wen
- Institute of Green Chemistry and Molecular Engineering, School of Chemistry, Sun Yat-sen University, Guangzhou, 510006, PR China
- Lehn Institute of Functional Materials, School of Chemistry, Sun Yat-sen University, Guangzhou, 510006, PR China
| | - Yahao Huang
- Institute of Green Chemistry and Molecular Engineering, School of Chemistry, Sun Yat-sen University, Guangzhou, 510006, PR China
- Lehn Institute of Functional Materials, School of Chemistry, Sun Yat-sen University, Guangzhou, 510006, PR China
| | - Yu Zhang
- Institute of Green Chemistry and Molecular Engineering, School of Chemistry, Sun Yat-sen University, Guangzhou, 510006, PR China
- Lehn Institute of Functional Materials, School of Chemistry, Sun Yat-sen University, Guangzhou, 510006, PR China
| | - Hansjörg Grützmacher
- Lehn Institute of Functional Materials, School of Chemistry, Sun Yat-sen University, Guangzhou, 510006, PR China
- Department of Chemistry and Applied Biosciences, ETH Zürich, 8093, Zürich, Switzerland
| | - Peng Hu
- Institute of Green Chemistry and Molecular Engineering, School of Chemistry, Sun Yat-sen University, Guangzhou, 510006, PR China.
- Lehn Institute of Functional Materials, School of Chemistry, Sun Yat-sen University, Guangzhou, 510006, PR China.
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, 350002, Fujian, PR China.
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6
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Takahashi S, Kamiyama S, Ishii A, Nakata N. Syntheses of Iminophosphomamido Chlorogermylenes and Their Complexation with a Rhodium(I) Complex. Chem Asian J 2024; 19:e202300968. [PMID: 38050920 DOI: 10.1002/asia.202300968] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2023] [Revised: 12/01/2023] [Accepted: 12/04/2023] [Indexed: 12/07/2023]
Abstract
Three-coordinated chlorogermylenes of the type [Ph2 P(RN)2 ]GeCl (3: R=t Bu; 4: R=Dip=2,6-i Pr2 C6 H3 ), which bear an N,N-substituted iminophosphonamide ligand, were synthesized. The coordination behavior of 3 and 4 toward rhodium(I) complex was investigated. When 3 was treated with 1/2 of an equivalent of [RhCl(cod)]2 (cod=1,5-cyclooctadiene), the corresponding chlorogermylene-Rh(I) complex 5 was obtained as orange crystals. In contrast, the reaction of 4 with a half equivalent of [RhCl(cod)]2 under a CO atmosphere resulted in the formation of a five-membered germarhodacycle 7. Compounds 3, 4, 5, and 7 were characterized using NMR spectroscopies and single-crystal X-ray diffraction. Complex 5 can be employed as a catalyst for the hydrosilylation and hydroboration reactions of diphenylacetylene, thus demonstrating the utility of germylene ligands comparable to those of NHCs in the major transition metal catalytic processes.
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Affiliation(s)
- Shintaro Takahashi
- Department of Chemistry, Graduate School of Science and Engineering, Saitama University, 225, Shimo-okubo, Sakura-ku, Saitama, 338-8570, Japan
| | - Shota Kamiyama
- Department of Chemistry, Graduate School of Science and Engineering, Saitama University, 225, Shimo-okubo, Sakura-ku, Saitama, 338-8570, Japan
| | - Akihiko Ishii
- Department of Chemistry, Graduate School of Science and Engineering, Saitama University, 225, Shimo-okubo, Sakura-ku, Saitama, 338-8570, Japan
| | - Norio Nakata
- Department of Chemistry, Graduate School of Science and Engineering, Saitama University, 225, Shimo-okubo, Sakura-ku, Saitama, 338-8570, Japan
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7
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Sun F, Chen X, Wang S, Sun F, Zhao SY, Liu W. Borrowing Hydrogen β-Phosphinomethylation of Alcohols Using Methanol as C1 Source by Pincer Manganese Complex. J Am Chem Soc 2023; 145:25545-25552. [PMID: 37962982 DOI: 10.1021/jacs.3c10484] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2023]
Abstract
Herein, we report a manganese-catalyzed three-component coupling of β-H containing alcohols, methanol, and phosphines for the synthesis of γ-hydroxy phosphines via a borrowing hydrogen strategy. In this development, methanol serves as a sustainable C1 source. A variety of aromatic and aliphatic substituted alcohols and phosphines could undergo the dehydrogenative cross-coupling process efficiently and deliver the corresponding β-phosphinomethylated alcohol products in moderate to good yields. Mechanistic studies suggest that this transformation proceeds in a sequential manner including catalytic dehydrogenation, aldol condensation, Michael addition, and catalytic hydrogenation.
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Affiliation(s)
- Feixiang Sun
- Key Laboratory of Science and Technology of Eco-Textile, Ministry of Education, College of Chemistry and Chemical Engineering, Donghua University, Shanghai 201620, P. R. China
| | - Xin Chen
- Key Laboratory of Science and Technology of Eco-Textile, Ministry of Education, College of Chemistry and Chemical Engineering, Donghua University, Shanghai 201620, P. R. China
| | - Siyi Wang
- Key Laboratory of Science and Technology of Eco-Textile, Ministry of Education, College of Chemistry and Chemical Engineering, Donghua University, Shanghai 201620, P. R. China
| | - Fan Sun
- Key Laboratory of Science and Technology of Eco-Textile, Ministry of Education, College of Chemistry and Chemical Engineering, Donghua University, Shanghai 201620, P. R. China
| | - Sheng-Yin Zhao
- Key Laboratory of Science and Technology of Eco-Textile, Ministry of Education, College of Chemistry and Chemical Engineering, Donghua University, Shanghai 201620, P. R. China
| | - Weiping Liu
- Key Laboratory of Science and Technology of Eco-Textile, Ministry of Education, College of Chemistry and Chemical Engineering, Donghua University, Shanghai 201620, P. R. China
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8
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Tendera L, Kuehn L, Marder TB, Radius U. On the Reactivity of a NHC Nickel Bis-Boryl Complex: Reductive Elimination and Formation of Mono-Boryl Complexes. Chemistry 2023; 29:e202302310. [PMID: 37551752 DOI: 10.1002/chem.202302310] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2023] [Revised: 08/07/2023] [Accepted: 08/08/2023] [Indexed: 08/09/2023]
Abstract
The synthesis of the first terminal mono-boryl complexes of nickel, which are not stabilized by a pincer ligand, is reported. The reaction of the nickel bis-boryl complex cis-[Ni(i Pr2 ImMe )2 (Bcat)2 ] 1 (cat=1,2-O2 C6 H4 ) with the small donor ligand PMe3 led to a complete ligand exchange at nickel with reductive elimination of B2 cat2 and formation of the bis-NHC adduct [B2 cat2 ⋅ (i Pr2 ImMe )2 ] 3 and [Ni(PMe3 )4 ] 2 as the metal-containing species. Electrophilic attack of MeI on complex 1 or ligand dismutation of 1 with trans-[Ni(i Pr2 ImMe )2 Br2 ] led to loss of only one boryl ligand of 1 and afforded the nickel mono-boryl complexes trans-[Ni(i Pr2 ImMe )2 (Bcat)Br] 4 a and trans-[Ni(i Pr2 ImMe )2 (Bcat)I] 4 b.
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Affiliation(s)
- Lukas Tendera
- Institute for Inorganic Chemistry, Julius-Maximilians-Universität Würzburg, Am Hubland, 97074, Würzburg, Germany
| | - Laura Kuehn
- Institute for Inorganic Chemistry, Julius-Maximilians-Universität Würzburg, Am Hubland, 97074, Würzburg, Germany
| | - Todd B Marder
- Institute for Inorganic Chemistry, Julius-Maximilians-Universität Würzburg, Am Hubland, 97074, Würzburg, Germany
- Institute for Sustainable Chemistry & Catalysis with Boron, Julius-Maximilians-Universität Würzburg, Am Hubland, 97074, Würzburg, Germany
| | - Udo Radius
- Institute for Inorganic Chemistry, Julius-Maximilians-Universität Würzburg, Am Hubland, 97074, Würzburg, Germany
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9
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Mu QQ, Guo AX, Cai X, Qin YY, Liu XL, Ye FZ, Yang HJ, Xiao X, Liu XW. Cobalt's Dual Role in Promoting C3-Glycosylation of Indoles: Unraveling Mechanistic Insights. Org Lett 2023; 25:7040-7045. [PMID: 37721454 DOI: 10.1021/acs.orglett.3c02624] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/19/2023]
Abstract
In this study, we present a cobalt-catalyzed C3-glycosylation of indoles using unfunctionalized glycals, yielding 3-indolyl-C-deoxyglycosides. These compounds hold promise as sodium-dependent glucose cotransporter 2 (SGLT2) inhibitors for treating type 2 diabetes. Control experiments unveiled that cobalt assumes a dual role, facilitating catalytic C-glycosylation while unexpectedly driving the anomerization of α-anomers through endocyclic cleavage of the C1-O5 bond, resulting in the formation of β-C-deoxyglycosides. Furthermore, density functional theory (DFT) calculations shed light on the reaction mechanism, emphasizing the significant role of the pyridine group of indole in stabilizing transition states and intermediates.
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Affiliation(s)
- Qiu-Qi Mu
- School of Chemistry and Chemical Engineering, Northwestern Polytechnical University, Xi'an, Shaanxi 710072, P. R. China
| | - Ao-Xin Guo
- School of Chemistry, Chemical Engineering and Biotechnology Nanyang Technological University, 21 Nanyang Link, Singapore, 637371, Singapore
| | - Xin Cai
- School of Chemistry and Chemical Engineering, Northwestern Polytechnical University, Xi'an, Shaanxi 710072, P. R. China
| | - Yang-Yang Qin
- School of Chemistry and Chemical Engineering, Northwestern Polytechnical University, Xi'an, Shaanxi 710072, P. R. China
| | - Xing-Le Liu
- School of Chemistry and Chemical Engineering, Northwestern Polytechnical University, Xi'an, Shaanxi 710072, P. R. China
| | - Fang-Zhen Ye
- School of Chemistry and Chemical Engineering, Northwestern Polytechnical University, Xi'an, Shaanxi 710072, P. R. China
| | - Hui-Jie Yang
- School of Chemistry and Chemical Engineering, Northwestern Polytechnical University, Xi'an, Shaanxi 710072, P. R. China
| | - Xiong Xiao
- School of Chemistry and Chemical Engineering, Northwestern Polytechnical University, Xi'an, Shaanxi 710072, P. R. China
| | - Xue-Wei Liu
- School of Chemistry, Chemical Engineering and Biotechnology Nanyang Technological University, 21 Nanyang Link, Singapore, 637371, Singapore
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Zhang G, Zeng H, Zadori N, Marino C, Zheng S, Neary MC. Homoleptic octahedral Co II complexes as precatalysts for regioselective hydroboration of alkenes with high turnover frequencies. RSC Adv 2023; 13:28089-28096. [PMID: 37746341 PMCID: PMC10517108 DOI: 10.1039/d3ra06113b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2023] [Accepted: 09/15/2023] [Indexed: 09/26/2023] Open
Abstract
Homoleptic complexes adopting octahedral coordination modes are usually less active in catalysis due to the saturated coordination around metal centers that prevents substrate activation in a catalytic event. In this work, we demonstrated that a homoleptic octahedral cobalt complex (1) of 4'-pyridyl-2,2';6',2''-terpyridine that experienced monoprotonation at the non-coordinating pyridyl moiety upon crystallization could serve as a highly efficient precatalyst for the hydroboration of styrene derivatives with Markovnikov selectivity. The solid-state structure of this precatalyst along with relevant homoleptic CoII and FeII complexes has been characterized by X-ray crystallography. In the solid state, 1 features one-dimensional hydrogen-bonded chains that are further stacked by interchain π⋯π interactions. The newly synthesized complexes (1-3) along with several known analogues (4-6) were examined as precatalysts for the hydroboration of alkenes. The best-performing system, 1/KOtBu was found to promote Markovnikov hydroboration of substituted styrenes with high turnover frequencies (TOFs) up to ∼47 000 h-1, comparable to the most efficient polymeric catalyst [Co(pytpy)Cl2]n reported to date. Although some limitations in substrate scope as well as functional group tolerance exist, the catalyst shows good promise for several relevant hydrofunctionaliation reactions.
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Affiliation(s)
- Guoqi Zhang
- Department of Sciences, John Jay College and PhD Program in Chemistry, The Graduate Center of the City University of New York New York 10019 NY USA
| | - Haisu Zeng
- Department of Sciences, John Jay College and PhD Program in Chemistry, The Graduate Center of the City University of New York New York 10019 NY USA
- Department of Chemistry, Hunter College, The City University of New York New York 10065 NY USA
| | - Nora Zadori
- Department of Sciences, John Jay College and PhD Program in Chemistry, The Graduate Center of the City University of New York New York 10019 NY USA
| | - Camila Marino
- Department of Sciences, John Jay College and PhD Program in Chemistry, The Graduate Center of the City University of New York New York 10019 NY USA
| | - Shengping Zheng
- Department of Chemistry, Hunter College, The City University of New York New York 10065 NY USA
| | - Michelle C Neary
- Department of Chemistry, Hunter College, The City University of New York New York 10065 NY USA
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11
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Behera RR, Saha R, Kumar AA, Sethi S, Jana NC, Bagh B. Hydrosilylation of Terminal Alkynes Catalyzed by an Air-Stable Manganese-NHC Complex. J Org Chem 2023. [PMID: 37317486 DOI: 10.1021/acs.joc.3c00127] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
In recent years, catalysis with base metal manganese has received a significant amount of interest. Catalysis with manganese complexes having N-heterocyclic carbenes (NHCs) is relatively underdeveloped in comparison to the extensively investigated manganese catalysts possessing pincer ligands (particularly phosphine-based ligands). Herein, we describe the synthesis of two imidazolium salts decorated with picolyl arms (L1 and L2) as NHC precursors. Facile coordination of L1 and L2 with MnBr(CO)5 in the presence of a base resulted in the formation manganese(I)-NHC complexes (1 and 2) as an air-stable solid in good isolated yield. Single-crystal X-ray analysis revealed the structure of the cationic complexes [Mn(CO)3(NHC)][PF6] with tridentate N,C,N binding of the NHC ligand in a facile fashion. Along with a few known manganese(I) complexes, these Mn(I)-NHC complexes 1 and 2 were tested for the hydrosilylation of terminal alkynes. Complex 1 was proved to be an effective catalyst for the hydrosilylation of terminal alkynes with good selectivity toward the less thermodynamically stable β-(Z)-vinylsilanes. This method provided good regioselectivity (anti-Markovnikov addition) and stereoselectivity (β-(Z)-product). Experimental evidence suggested that the present hydrosilylation pathway involved an organometallic mechanism with manganese(I)-silyl species as a possible reactive intermediate.
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Affiliation(s)
- Rakesh R Behera
- School of Chemical Sciences, National Institute of Science Education and Research (NISER), An OCC of Homi Bhabha National Institute, PO Bhimpur-Padanpur, Via Jatni, District Khurda, Bhubaneswar, Odisha 752050, India
| | - Ratnakar Saha
- School of Chemical Sciences, National Institute of Science Education and Research (NISER), An OCC of Homi Bhabha National Institute, PO Bhimpur-Padanpur, Via Jatni, District Khurda, Bhubaneswar, Odisha 752050, India
| | - Alamsaty Ashis Kumar
- School of Chemical Sciences, National Institute of Science Education and Research (NISER), An OCC of Homi Bhabha National Institute, PO Bhimpur-Padanpur, Via Jatni, District Khurda, Bhubaneswar, Odisha 752050, India
| | - Subrat Sethi
- School of Chemical Sciences, National Institute of Science Education and Research (NISER), An OCC of Homi Bhabha National Institute, PO Bhimpur-Padanpur, Via Jatni, District Khurda, Bhubaneswar, Odisha 752050, India
| | - Narayan Ch Jana
- School of Chemical Sciences, National Institute of Science Education and Research (NISER), An OCC of Homi Bhabha National Institute, PO Bhimpur-Padanpur, Via Jatni, District Khurda, Bhubaneswar, Odisha 752050, India
| | - Bidraha Bagh
- School of Chemical Sciences, National Institute of Science Education and Research (NISER), An OCC of Homi Bhabha National Institute, PO Bhimpur-Padanpur, Via Jatni, District Khurda, Bhubaneswar, Odisha 752050, India
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12
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Liang RX, Tang HW, Liu JL, Xu JF, Chen LJ, Jia YX. Cobalt-catalyzed enantioselective desymmetrizing reductive cyclization of alkynyl cyclodiketones. Chem Sci 2023; 14:6393-6398. [PMID: 37325142 PMCID: PMC10266457 DOI: 10.1039/d3sc00119a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2023] [Accepted: 05/09/2023] [Indexed: 06/17/2023] Open
Abstract
A highly enantioselective cobalt-catalyzed desymmetrizing reductive cyclization of alkynyl cyclodiketones has been developed. Under mild reaction conditions by employing HBpin as a reducing agent and ferrocene-based PHOX as a chiral ligand, a series of polycyclic tertiary allylic alcohols bearing contiguous quaternary stereocenters are achieved in moderate to excellent yields with excellent enantioselectivities (up to 99%). Broad substrate scope and high functional group compatibility are observed in this reaction. A CoH-catalyzed pathway involving alkyne hydrocobaltation followed by nucleophilic addition to the C[double bond, length as m-dash]O bond is proposed. Synthetic transformations of the product are conducted to demonstrate the practical utilities of this reaction.
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Affiliation(s)
- Ren-Xiao Liang
- College of Chemical Engineering, State Key Laboratory Breeding Base of Green-Chemical Synthesis Technology, Zhejiang University of Technology Chaowang Road 18# Hangzhou 310014 China
| | - Heng-Wei Tang
- College of Chemical Engineering, State Key Laboratory Breeding Base of Green-Chemical Synthesis Technology, Zhejiang University of Technology Chaowang Road 18# Hangzhou 310014 China
| | - Jia-Liang Liu
- College of Chemical Engineering, State Key Laboratory Breeding Base of Green-Chemical Synthesis Technology, Zhejiang University of Technology Chaowang Road 18# Hangzhou 310014 China
| | - Jian-Feng Xu
- College of Chemical Engineering, State Key Laboratory Breeding Base of Green-Chemical Synthesis Technology, Zhejiang University of Technology Chaowang Road 18# Hangzhou 310014 China
| | - Ling-Jia Chen
- College of Chemical Engineering, State Key Laboratory Breeding Base of Green-Chemical Synthesis Technology, Zhejiang University of Technology Chaowang Road 18# Hangzhou 310014 China
| | - Yi-Xia Jia
- College of Chemical Engineering, State Key Laboratory Breeding Base of Green-Chemical Synthesis Technology, Zhejiang University of Technology Chaowang Road 18# Hangzhou 310014 China
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences Shanghai 200032 P. R. China
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13
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Lee B, Pabst TP, Hierlmeier G, Chirik PJ. Exploring the Effect of Pincer Rigidity on Oxidative Addition Reactions with Cobalt(I) Complexes. Organometallics 2023; 42:708-718. [PMID: 37223209 PMCID: PMC10201995 DOI: 10.1021/acs.organomet.3c00079] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/08/2023]
Abstract
Cobalt complexes containing the 2,6-diaminopyridine-substituted PNP pincer (iPrPNMeNP = 2,6-(iPr2PNMe)2(C5H3N)) were synthesized. A combination of solid-state structures and investigation of the cobalt(I)/(II) redox potential established a relatively rigid and electron-donating chelating ligand as compared to iPrPNP (iPrPNP = 2,6-(iPr2PCH2)2(C5H3N)). Based on a buried volume analysis, the two pincer ligands are sterically indistinguishable. Nearly planar, diamagnetic, four-coordinate complexes were observed independent of the field strength (chloride, alkyl, aryl) of the fourth ligand completing the coordination sphere of the metal. Computational studies supported a higher barrier for C-H oxidative addition, largely a result of the increased rigidity of the pincer. The increased oxidative addition barrier resulted in stabilization of (iPrPNMeNP)Co(I) complexes, enabling the characterization of the cobalt boryl and the cobalt hydride dimer by X-ray crystallography. Moreover, (iPrPNMeNP)CoMe served as an efficient precatalyst for alkene hydroboration likely because of the reduced propensity to undergo oxidative addition, demonstrating that reactivity and catalytic performance can be tuned by rigidity of pincer ligands.
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Affiliation(s)
- Boran Lee
- Department of Chemistry, Princeton University, Princeton, New Jersey 08544, United States
| | - Tyler P Pabst
- Department of Chemistry, Princeton University, Princeton, New Jersey 08544, United States
| | - Gabriele Hierlmeier
- Department of Chemistry, Princeton University, Princeton, New Jersey 08544, United States
| | - Paul J Chirik
- Department of Chemistry, Princeton University, Princeton, New Jersey 08544, United States
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14
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Tang J, He J, Zhao SY, Liu W. Manganese-Catalyzed Chemoselective Coupling of Secondary Alcohols, Primary Alcohols and Methanol. Angew Chem Int Ed Engl 2023; 62:e202215882. [PMID: 36847452 DOI: 10.1002/anie.202215882] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2022] [Revised: 02/22/2023] [Accepted: 02/27/2023] [Indexed: 03/01/2023]
Abstract
Herein, we report a manganese-catalyzed three-component coupling of secondary alcohols, primary alcohols and methanol for the synthesis of β,β-methylated/alkylated secondary alcohols. Using our method, a series of 1-arylethanol, benzyl alcohol derivatives, and methanol undergo sequential coupling efficiently to construct assembled alcohols with high chemoselectivity in moderate to good yields. Mechanistic studies suggest that the reaction proceeds via methylation of a benzylated secondary alcohol intermediate to generate the final product.
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Affiliation(s)
- Jun Tang
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, Key Lab of Science and Technology of Eco-Textile, Ministry of Education, College of Chemistry and Chemical Engineering, Donghua University, Shanghai, 201620, China
| | - Jingxi He
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, Key Lab of Science and Technology of Eco-Textile, Ministry of Education, College of Chemistry and Chemical Engineering, Donghua University, Shanghai, 201620, China
| | - Sheng-Yin Zhao
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, Key Lab of Science and Technology of Eco-Textile, Ministry of Education, College of Chemistry and Chemical Engineering, Donghua University, Shanghai, 201620, China
| | - Weiping Liu
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, Key Lab of Science and Technology of Eco-Textile, Ministry of Education, College of Chemistry and Chemical Engineering, Donghua University, Shanghai, 201620, China
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15
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Tendera L, Fantuzzi F, Marder TB, Radius U. Nickel boryl complexes and nickel-catalyzed alkyne borylation. Chem Sci 2023; 14:2215-2228. [PMID: 36845942 PMCID: PMC9945561 DOI: 10.1039/d2sc04690c] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2022] [Accepted: 01/27/2023] [Indexed: 01/28/2023] Open
Abstract
The first nickel bis-boryl complexes cis-[Ni( i Pr2ImMe)2(Bcat)2], cis-[Ni( i Pr2ImMe)2(Bpin)2] and cis-[Ni( i Pr2ImMe)2(Beg)2] are reported, which were prepared via the reaction of a source of [Ni( i Pr2ImMe)2] with the diboron(4) compounds B2cat2, B2pin2 and B2eg2 ( i Pr2ImMe = 1,3-di-iso-propyl-4,5-dimethylimidazolin-2-ylidene; B2cat2 = bis(catecholato)diboron; B2pin2 = bis(pinacolato)diboron; B2eg2 = bis(ethylene glycolato)diboron). X-ray diffraction and DFT calculations strongly suggest that a delocalized, multicenter bonding scheme dictates the bonding situation of the NiB2 moiety in these square planar complexes, reminiscent of the bonding situation of "non-classical" H2 complexes. [Ni( i Pr2ImMe)2] also efficiently catalyzes the diboration of alkynes using B2cat2 as the boron source under mild conditions. In contrast to the known platinum-catalyzed diboration, the nickel system follows a different mechanistic pathway, which not only provides the 1,2-borylation product in excellent yields, but also provides an efficient approach to other products such as C-C coupled borylation products or rare tetra-borylated compounds. The mechanism of the nickel-catalyzed alkyne borylation was examined by means of stoichiometric reactions and DFT calculations. Oxidative addition of the diboron reagent to nickel is not dominant; the first steps of the catalytic cycle are coordination of the alkyne to [Ni( i Pr2ImMe)2] and subsequent borylation at the coordinated and, thus, activated alkyne to yield complexes of the type [Ni(NHC)2(η2-cis-(Bcat)(R)C[double bond, length as m-dash]C(R)(Bcat))], exemplified by the isolation and structural characterization of [Ni( i Pr2ImMe)2(η2-cis-(Bcat)(Me)C[double bond, length as m-dash]C(Me)(Bcat))] and [Ni( i Pr2ImMe)2(η2-cis-(Bcat)(H7C3)C[double bond, length as m-dash]C(C3H7)(Bcat))].
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Affiliation(s)
- Lukas Tendera
- Institute for Inorganic Chemistry, Julius-Maximilians-Universität Würzburg Am Hubland 97074 Würzburg Germany
| | - Felipe Fantuzzi
- School of Chemistry and Forensic Science, University of KentPark Wood RdCanterburyCT2 7NHUK
| | - Todd B. Marder
- Institute for Inorganic Chemistry, Julius-Maximilians-Universität WürzburgAm Hubland97074 WürzburgGermany,Institute for Sustainable Chemistry & Catalysis with Boron, Julius-Maximilians-Universität WürzburgAm Hubland97074 WürzburgGermany
| | - Udo Radius
- Institute for Inorganic Chemistry, Julius-Maximilians-Universität Würzburg Am Hubland 97074 Würzburg Germany
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16
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Kanno S, Kakiuchi F, Kochi T. Palladium-Catalyzed Hydroboration/Cyclization of 1, n-Dienes. J Org Chem 2023; 88:2621-2630. [PMID: 36701792 DOI: 10.1021/acs.joc.2c02781] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
While the hydroboration of alkenes is well established, the corresponding cyclization reaction of dienes remains challenging. Here, we report a new method for hydroboration/cyclization applicable to various 1,n-dienes and hydroboranes. The method features the direct synthesis of borylalkyl cyclopentanes from common 1,6-dienes, which is highlighted by syntheses of elaborated pyrrolidine cores from easily accessible diallylamines. Notably, 1,n-dienes (n > 6) also undergo five-membered ring formation, offering "remote" hydroboration/cyclization that would be otherwise difficult to achieve.
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Affiliation(s)
- Shota Kanno
- Department of Chemistry, Faculty of Science and Technology, Keio University, 3-14-1 Hiyoshi, Kohoku-ku, Yokohama, Kanagawa 223-8522, Japan
| | - Fumitoshi Kakiuchi
- Department of Chemistry, Faculty of Science and Technology, Keio University, 3-14-1 Hiyoshi, Kohoku-ku, Yokohama, Kanagawa 223-8522, Japan
| | - Takuya Kochi
- Department of Chemistry, Faculty of Science and Technology, Keio University, 3-14-1 Hiyoshi, Kohoku-ku, Yokohama, Kanagawa 223-8522, Japan
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17
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Fang F, Zhang J. Notable Catalytic Activity of Transition Metal Thiolate Complexes against Hydrosilylation and Hydroboration of Carbon-Heteroatom Bonds. Chem Asian J 2023; 18:e202201181. [PMID: 36545848 DOI: 10.1002/asia.202201181] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2022] [Revised: 12/19/2022] [Accepted: 12/21/2022] [Indexed: 12/24/2022]
Abstract
Chemists tend to use transition metal hydride complexes rather than thiolate complexes to catalyse chemical transformations because the hydride complexes possess diverse catalytic reactivity, although most of them are air/moisture-sensitive and difficult to prepare. By comparing the catalytic performances of pincer ligated group 10 metal thiolate and hydride complexes in catalysing the hydroboration and hydrosilylation of C=O and C=N bonds, we demonstrate in this review that transition metal thiolate complexes are much better catalysts than the corresponding hydride complexes in catalysing this type of reactions. Many hydroboration and hydrosilylation reactions catalysed by pincer ligated group 10 metal hydride complexes can also be catalysed by the corresponding thiolate complexes and the thiolate systems are far more active. Therefore, the applications of transition metal thiolate complexes in the catalytic hydroboration and hydrosilylation of unsaturated carbon-heteroatom bonds deserve special attention in future work.
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Affiliation(s)
- Fei Fang
- School of Chemistry and Materials Engineering, Xinxiang University Xinxiang, Henan, 453003, P. R. China
| | - Jie Zhang
- Henan Key Laboratory of Boron Chemistry and, Advanced Energy Materials, School of Chemistry and Chemical Engineering, Henan Normal University Xinxiang, Henan, 453007, P. R. China
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18
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Lu D, Chen C, Zheng L, Ying J, Lu Z. Regio- and Stereoselective Cobalt-Catalyzed Hydroboration of Vinylcyclopropanes to Access Homoallylic Boronates. Organometallics 2023. [DOI: 10.1021/acs.organomet.2c00592] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Affiliation(s)
- Dongpo Lu
- Center of Chemistry for Frontier Technologies, Department of Chemistry, Zhejiang University, Hangzhou 310058, People’s Republic of China
| | - Chenhui Chen
- Center of Chemistry for Frontier Technologies, Department of Chemistry, Zhejiang University, Hangzhou 310058, People’s Republic of China
| | - Lixuan Zheng
- Center of Chemistry for Frontier Technologies, Department of Chemistry, Zhejiang University, Hangzhou 310058, People’s Republic of China
| | - Jiale Ying
- Center of Chemistry for Frontier Technologies, Department of Chemistry, Zhejiang University, Hangzhou 310058, People’s Republic of China
| | - Zhan Lu
- Center of Chemistry for Frontier Technologies, Department of Chemistry, Zhejiang University, Hangzhou 310058, People’s Republic of China
- College of Chemistry, Zhengzhou University, Zhengzhou, Henan 450001, People’s Republic of China
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19
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Zhang G, Zheng S, Neary MC. An ionic Fe-based metal-organic-framework with 4'-pyridyl-2,2':6',2''-terpyridine for catalytic hydroboration of alkynes. RSC Adv 2023; 13:2225-2232. [PMID: 36741180 PMCID: PMC9834911 DOI: 10.1039/d2ra08040k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2022] [Accepted: 01/05/2023] [Indexed: 01/15/2023] Open
Abstract
An ionic metal-organic-framework (MOF) containing nanoscale channels was readily assembled from ditopic 4'-pyridyl-2,2':6',2''-terpyridine (pytpy) and a simple iron(ii) salt. X-ray structural analysis revealed a two-dimensional grid-like framework assembled by classic octahedral (pytpy)2FeII cations as linkers (with pytpy as a new ditopic pyridyl ligand) and octa-coordinate FeCl2 centers as nodes. The layer-by-layer assembly of the 2-D framework resulted in the formation of 3-D porous materials consisting of nano-scale channels. The charges of the cationic framework were balanced with anionic Cl3FeOFeCl3 in its void channels. The new Fe-based MOF material was employed as a precatalyst for syn-selective hydroboration of alkynes under mild, solvent-free conditions in the presence of an activator, leading to the synthesis of a range of trans-alkenylboronates in good yields. The larger scale applicability and recyclability of the new MOF catalyst was further explored. This represents a rare example of an ionic MOF material that can be utilized in hydroboration catalysis.
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Affiliation(s)
- Guoqi Zhang
- Department of Sciences, John Jay College, PhD Program in Chemistry, The Graduate Center, The City University of New York New York NY 10019 USA
| | - Shengping Zheng
- Department of Chemistry, Hunter College, The City University of New York New York 10065 NY USA
| | - Michelle C Neary
- Department of Chemistry, Hunter College, The City University of New York New York 10065 NY USA
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20
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Yang H, Hinz A, Fan Q, Xie S, Qi X, Huang W, Li Q, Sun H, Li X. Control over Selectivity in Alkene Hydrosilylation Catalyzed by Cobalt(III) Hydride Complexes. Inorg Chem 2022; 61:19710-19725. [PMID: 36455154 DOI: 10.1021/acs.inorgchem.2c02094] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/03/2022]
Abstract
Two new bisphosphine [PCP] pincer cobalt(III) hydrides, [(L1)Co(PMe3)(H)(Cl)] (L11, L1 = 2,6-((Ph2P)(Et)N)2C6H3) and [(L2)Co(PMe3)(H)(Cl)] (L21, L2 = 2,6-((iPr2P)(Et)N)2C6H3), as well as one new bissilylene [SiCSi] pincer cobalt(III) hydride, [(L3)Co(PMe3)(H)(Cl)] (L31, L3 = 1,3-((PhC(tBuN)2Si)(Et)N)2C6H3), were synthesized by reaction of the corresponding protic [PCP] or [SiCSi] pincer ligands L1H, L2H, and L3H with CoCl(PMe3)3. Despite the similarities in the ligand scaffolds, the three cobalt(III) hydrides show remarkably different performance as catalysts in alkene hydrosilylation. Among the PCP pincer complexes, L11 has higher catalytic activity than complex L21, and both catalysts afford anti-Markovnikov selectivity for both aliphatic and aromatic alkenes. In contrast, the catalytic activity for alkene hydrosilylation of silylene complex L31 is comparable to phosphine complex L11, but a dependence of regioselectivity on the substrates was observed: While aliphatic alkenes are converted in an anti-Markovnikov fashion, the hydrosilylation of aromatic alkenes affords Markovnikov products. The substrate scope was explored with 28 examples. Additional experiments were conducted to elucidate these mechanisms of hydrosilylation. The synthesis of cobalt(I) complex (L1)Co(PMe3)2 (L17) and its catalytic properties for alkene hydrosilylation allowed for the proposal of the mechanistic variations that occur in dependence of reaction conditions and substrates.
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Affiliation(s)
- Haiquan Yang
- School of Chemistry and Chemical Engineering, Key Laboratory of Special Functional Aggregated Materials, Ministry of Education, Shandong University, Shanda Nanlu 27, Jinan 250100, People's Republic of China
| | - Alexander Hinz
- Institute for Inorganic Chemistry (AOC), Karlsruhe Institute of Technology (KIT), Engesserstr. 15, 76131 Karlsruhe, Germany
| | - Qingqing Fan
- School of Chemistry and Chemical Engineering, Key Laboratory of Special Functional Aggregated Materials, Ministry of Education, Shandong University, Shanda Nanlu 27, Jinan 250100, People's Republic of China
| | - Shangqing Xie
- School of Chemistry and Chemical Engineering, Key Laboratory of Special Functional Aggregated Materials, Ministry of Education, Shandong University, Shanda Nanlu 27, Jinan 250100, People's Republic of China
| | - Xinghao Qi
- School of Chemistry and Chemical Engineering, Key Laboratory of Special Functional Aggregated Materials, Ministry of Education, Shandong University, Shanda Nanlu 27, Jinan 250100, People's Republic of China
| | - Wei Huang
- School of Chemistry and Chemical Engineering, Key Laboratory of Special Functional Aggregated Materials, Ministry of Education, Shandong University, Shanda Nanlu 27, Jinan 250100, People's Republic of China
| | - Qingshuang Li
- School of Chemistry and Chemical Engineering, Key Laboratory of Special Functional Aggregated Materials, Ministry of Education, Shandong University, Shanda Nanlu 27, Jinan 250100, People's Republic of China
| | - Hongjian Sun
- School of Chemistry and Chemical Engineering, Key Laboratory of Special Functional Aggregated Materials, Ministry of Education, Shandong University, Shanda Nanlu 27, Jinan 250100, People's Republic of China
| | - Xiaoyan Li
- School of Chemistry and Chemical Engineering, Key Laboratory of Special Functional Aggregated Materials, Ministry of Education, Shandong University, Shanda Nanlu 27, Jinan 250100, People's Republic of China
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21
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Ligand-enabled Ni-catalyzed hydroarylation and hydroalkenylation of internal alkenes with organoborons. Nat Commun 2022; 13:6878. [DOI: 10.1038/s41467-022-34675-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2022] [Accepted: 11/02/2022] [Indexed: 11/13/2022] Open
Abstract
AbstractThe transition metal-catalyzed hydrofunctionalization of alkenes offers an efficient solution for the rapid construction of complex functional molecules, and significant progress has been made during last decades. However, the hydrofunctionalization of internal alkenes remains a significant challenge due to low reactivity and the difficulties of controlling the regioselectivity. Here, we report the hydroarylation and hydroalkenylation of internal alkenes lacking a directing group with aryl and alkenyl boronic acids in the presence of a nickel catalyst, featuring a broad substrate scope and wide functional group tolerance under redox-neutral conditions. The key to achieving this reaction is the identification of a bulky 1-adamantyl β-diketone ligand, which is capable of overcoming the low reactivity of internal 1,2-disubstituted alkenes. Preliminary mechanistic studies unveiled that this reaction undergoes an Ar-Ni(II)-H initiated hydroarylation process, which is generated by the oxidative addition of alcoholic solvent with Ni(0) species and sequential transmetalation. In addition, the oxidative addition of the alcoholic solvent proves to be the turnover-limiting step.
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22
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Theoretical study on the mechanism of the carbonylation cyclization of 1,5-diynes with hydrosilanes. J Organomet Chem 2022. [DOI: 10.1016/j.jorganchem.2022.122481] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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23
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Chen L, Huo Y, Tai M, Wang X, Gui X, Tu Y, Lin S, Hu J. Imidazolinium‐functionalized Complexes of Cobalt and Iron as Catalysts for Hydrosilylation Reactions. ChemistrySelect 2022. [DOI: 10.1002/slct.202202482] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Lei Chen
- Guangzhou Institute of Chemistry Chinese Academy of Sciences Guangzhou 510650 P.R. China
- University of Chinese Academy of Sciences Beijing 100049 P.R. China
| | | | - Mingyang Tai
- Guangzhou Institute of Chemistry Chinese Academy of Sciences Guangzhou 510650 P.R. China
- University of Chinese Academy of Sciences Beijing 100049 P.R. China
| | - Xiaofei Wang
- Guangzhou Institute of Chemistry Chinese Academy of Sciences Guangzhou 510650 P.R. China
- University of Chinese Academy of Sciences Beijing 100049 P.R. China
| | - Xuefeng Gui
- Guangzhou Institute of Chemistry Chinese Academy of Sciences Guangzhou 510650 P.R. China
- University of Chinese Academy of Sciences Beijing 100049 P.R. China
| | - Yuanyuan Tu
- Guangzhou Institute of Chemistry Chinese Academy of Sciences Guangzhou 510650 P.R. China
- Guangdong Provincial Key Laboratory of Organic Polymer Materials for Electronics Guangzhou 510650 P.R. China
- CAS Engineering Laboratory for Special Fine Chemicals Guangzhou 510650 P.R. China
- CASH GCC Shaoguan Research Institute of Advanced Materials Nanxiong 512400 P.R. China
- University of Chinese Academy of Sciences Beijing 100049 P.R. China
| | - Shudong Lin
- Guangzhou Institute of Chemistry Chinese Academy of Sciences Guangzhou 510650 P.R. China
- Guangdong Provincial Key Laboratory of Organic Polymer Materials for Electronics Guangzhou 510650 P.R. China
- CAS Engineering Laboratory for Special Fine Chemicals Guangzhou 510650 P.R. China
- CASH GCC Shaoguan Research Institute of Advanced Materials Nanxiong 512400 P.R. China
- University of Chinese Academy of Sciences Beijing 100049 P.R. China
| | - Jiwen Hu
- Guangzhou Institute of Chemistry Chinese Academy of Sciences Guangzhou 510650 P.R. China
- Guangdong Provincial Key Laboratory of Organic Polymer Materials for Electronics Guangzhou 510650 P.R. China
- CAS Engineering Laboratory for Special Fine Chemicals Guangzhou 510650 P.R. China
- CASH GCC Shaoguan Research Institute of Advanced Materials Nanxiong 512400 P.R. China
- University of Chinese Academy of Sciences Beijing 100049 P.R. China
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24
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Yang W, Chernyshov IY, Weber M, Pidko EA, Filonenko GA. Switching between Hydrogenation and Olefin Transposition Catalysis via Silencing NH Cooperativity in Mn(I) Pincer Complexes. ACS Catal 2022; 12:10818-10825. [PMID: 36082051 PMCID: PMC9442580 DOI: 10.1021/acscatal.2c02963] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2022] [Revised: 08/09/2022] [Indexed: 11/30/2022]
Abstract
![]()
While Mn-catalyzed (de)hydrogenation of carbonyl derivatives
has
been well established, the reactivity of Mn hydrides with olefins
remains very rare. Herein, we report a Mn(I) pincer complex that effectively
promotes site-controlled transposition of olefins. This reactivity
is shown to emerge once the N–H functionality within the Mn/NH
bifunctional complex is suppressed by alkylation. While detrimental
for carbonyl (de)hydrogenation, such masking of the cooperative N–H
functionality allows for the highly efficient conversion of a wide
range of allylarenes to higher-value 1-propenybenzenes in near-quantitative
yield with excellent stereoselectivities. The reactivity toward a
single positional isomerization was also retained for long-chain alkenes,
resulting in the highly regioselective formation of 2-alkenes, which
are less thermodynamically stable compared to other possible isomerization
products. The detailed mechanistic analysis of the reaction between
the activated Mn catalyst and olefins points to catalysis operating
via a metal–alkyl mechanism—one of the three conventional
transposition mechanisms previously unknown in Mn complexes.
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Affiliation(s)
- Wenjun Yang
- Inorganic Systems Engineering Group, Department of Chemical Engineering, Faculty of Applied Sciences, Delft University of Technology, Van der Maasweg 9, 2629 HZ Delft, The Netherlands
| | - Ivan Yu. Chernyshov
- TheoMAT Group, ChemBio Cluster, ITMO University, Lomonosova 9, St. Petersburg 191002, Russia
| | - Manuela Weber
- Institute of Chemistry and Biochemistry, Freie Universität Berlin, Fabeckstraße 34/36, D-14195 Berlin, Germany
| | - Evgeny A. Pidko
- Inorganic Systems Engineering Group, Department of Chemical Engineering, Faculty of Applied Sciences, Delft University of Technology, Van der Maasweg 9, 2629 HZ Delft, The Netherlands
| | - Georgy A. Filonenko
- Inorganic Systems Engineering Group, Department of Chemical Engineering, Faculty of Applied Sciences, Delft University of Technology, Van der Maasweg 9, 2629 HZ Delft, The Netherlands
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25
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Li Y, Liu D, Wan L, Zhang JY, Lu X, Fu Y. Ligand-Controlled Cobalt-Catalyzed Regiodivergent Alkyne Hydroalkylation. J Am Chem Soc 2022; 144:13961-13972. [PMID: 35866845 DOI: 10.1021/jacs.2c06279] [Citation(s) in RCA: 21] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
Regiodivergent alkyne hydroalkylation to generate different isomers of an alkene from the same alkyne starting material would be beneficial; however, it remains a challenge. Herein, we report a ligand-controlled cobalt-catalyzed regiodivergent alkyne hydroalkylation. The sensible selection of bisoxazoline (L1) and pyridine-oxazoline (L8) ligands led to reliable and predictable protocols that provided (E)-1,2-disubstituted and 1,1-disubstituted alkenes with high E/Z stereoselectivity and regioisomeric ratio starting from identical terminal alkyne and alkyl halide substrates and produced trisubstituted alkenes in the case of internal alkynes. This method exhibits a broad scope for terminal and internal alkynes with a wide range of activated and unactivated alkyl halides and shows excellent functional group compatibility.
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Affiliation(s)
- Yan Li
- Department of Hepatobiliary Surgery, The First Affiliated Hospital, Division of Life Sciences and Medicine, Hefei National Research Center for Physical Sciences at the Microscale, CAS Key Laboratory of Urban Pollutant Conversion, Anhui Province Key Laboratory of Biomass Clean Energy, University of Science and Technology of China, 230026 Hefei, China
| | - Deguang Liu
- Department of Hepatobiliary Surgery, The First Affiliated Hospital, Division of Life Sciences and Medicine, Hefei National Research Center for Physical Sciences at the Microscale, CAS Key Laboratory of Urban Pollutant Conversion, Anhui Province Key Laboratory of Biomass Clean Energy, University of Science and Technology of China, 230026 Hefei, China
| | - Lei Wan
- Department of Hepatobiliary Surgery, The First Affiliated Hospital, Division of Life Sciences and Medicine, Hefei National Research Center for Physical Sciences at the Microscale, CAS Key Laboratory of Urban Pollutant Conversion, Anhui Province Key Laboratory of Biomass Clean Energy, University of Science and Technology of China, 230026 Hefei, China
| | - Jun-Yang Zhang
- Department of Hepatobiliary Surgery, The First Affiliated Hospital, Division of Life Sciences and Medicine, Hefei National Research Center for Physical Sciences at the Microscale, CAS Key Laboratory of Urban Pollutant Conversion, Anhui Province Key Laboratory of Biomass Clean Energy, University of Science and Technology of China, 230026 Hefei, China
| | - Xi Lu
- Department of Hepatobiliary Surgery, The First Affiliated Hospital, Division of Life Sciences and Medicine, Hefei National Research Center for Physical Sciences at the Microscale, CAS Key Laboratory of Urban Pollutant Conversion, Anhui Province Key Laboratory of Biomass Clean Energy, University of Science and Technology of China, 230026 Hefei, China
| | - Yao Fu
- Department of Hepatobiliary Surgery, The First Affiliated Hospital, Division of Life Sciences and Medicine, Hefei National Research Center for Physical Sciences at the Microscale, CAS Key Laboratory of Urban Pollutant Conversion, Anhui Province Key Laboratory of Biomass Clean Energy, University of Science and Technology of China, 230026 Hefei, China.,Institute of Energy, Hefei Comprehensive National Science Center, 230031 Hefei, China
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26
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Liu T, Li C, Bai J, Zhang P, Guo Y, Wang X. Markovnikov‐Selective Hydroboration of Aryl Alkenes Enabled by A Simple Nickel Salt. CHINESE J CHEM 2022. [DOI: 10.1002/cjoc.202200244] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Tianfen Liu
- Green Catalysis Center College of Chemistry, Zhengzhou University, 100 Science Avenue, High‐Tech District Zhengzhou 450001 China
- State Key Laboratory of Organometallic Chemistry, Center for Excellence in Molecular Synthesis Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences 345 Lingling Road Shanghai 200032 China
| | - Chuhan Li
- State Key Laboratory of Organometallic Chemistry, Center for Excellence in Molecular Synthesis Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences 345 Lingling Road Shanghai 200032 China
| | - Jiahui Bai
- State Key Laboratory of Organometallic Chemistry, Center for Excellence in Molecular Synthesis Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences 345 Lingling Road Shanghai 200032 China
| | - Panke Zhang
- Green Catalysis Center College of Chemistry, Zhengzhou University, 100 Science Avenue, High‐Tech District Zhengzhou 450001 China
| | - Yinlong Guo
- State Key Laboratory of Organometallic Chemistry, Center for Excellence in Molecular Synthesis Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences 345 Lingling Road Shanghai 200032 China
| | - Xiaoming Wang
- State Key Laboratory of Organometallic Chemistry, Center for Excellence in Molecular Synthesis Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences 345 Lingling Road Shanghai 200032 China
- School of Chemistry and Materials Science, Hangzhou Institute for Advanced Study, University of Chinese Academy of Sciences, 1 Sub‐lane Xiangshan Hangzhou 310024 China
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27
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Bajo S, Theulier CA, Campos J. Mechanistic Investigations on Hydrogenation, Isomerization and Hydrosilylation Reactions Mediated by a Germyl‐Rhodium System. ChemCatChem 2022; 14:e202200157. [PMID: 36032040 PMCID: PMC9401076 DOI: 10.1002/cctc.202200157] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2022] [Revised: 05/09/2022] [Indexed: 11/07/2022]
Affiliation(s)
- Sonia Bajo
- CSIC: Consejo Superior de Investigaciones Cientificas IIQ SPAIN
| | | | - Jesus Campos
- Consejo Superior de Investigaciones Cientificas Institute of Chemical Research Av. Americo Vespucio 49, Isla de la 41092 Sevilla SPAIN
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28
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Skrodzki M, Ortega Garrido V, Csáky AG, Pawluć P. Searching for Highly Active Cobalt Catalysts Bearing Schiff Base Ligands for Markovnikov-Selective Hydrosilylation of Alkynes with Tertiary Silanes. J Catal 2022. [DOI: 10.1016/j.jcat.2022.05.002] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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29
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Naderi F, Orojloo M, Kamali S, Jannesar R, Amani S. Synthesis, Structural Characterization, in Vitro Biological Activity, and Computational Quantum Chemical Studies of New Cobalt (II), Nickel (II), and Copper (II) Complexes Based on an Azo-Azomethine Ligand. Polycycl Aromat Compd 2022. [DOI: 10.1080/10406638.2022.2049325] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- Fatemeh Naderi
- Chemistry Department, Faculty of Sciences, Arak University, Arak, Iran
| | - Masoumeh Orojloo
- Chemistry Department, Faculty of Sciences, Arak University, Arak, Iran
| | - Shirin Kamali
- Chemistry Department, Faculty of Sciences, Arak University, Arak, Iran
| | - Ramin Jannesar
- Department of Pathology, Yasuj University of Medical Sciences, Yasuj, Iran
- Department of Biotechnology and Microbial Nanotechnology, Dena Pathobiology Laboratory, Yasuj, Iran
| | - Saeid Amani
- Chemistry Department, Faculty of Sciences, Arak University, Arak, Iran
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30
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Ramani A, Desai B, Patel M, Naveen T. Recent advances in the functionalization of terminal and internal alkynes. ASIAN J ORG CHEM 2022. [DOI: 10.1002/ajoc.202200047] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Arti Ramani
- Sardar Vallabhbhai National Institute of Technology Department of chemistry INDIA
| | - Bhargav Desai
- Sardar Vallabhbhai National Institute of Technology Department of chemistry INDIA
| | - Monak Patel
- Sardar Vallabhbhai National Institute of Technology Department of chemistry INDIA
| | - Togati Naveen
- SVNIT Surat: Sardar Vallabhbhai National Institute of Technology Applied Chemistry Room No: 115, Applied Chemistry DepartmentSVNIT Surat 395007 SURAT INDIA
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31
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Sun W, Li MP, Li LJ, Huang Q, Hu MY, Zhu SF. Phenanthroline-imine ligands for iron-catalyzed alkene hydrosilylation. Chem Sci 2022; 13:2721-2728. [PMID: 35340863 PMCID: PMC8890093 DOI: 10.1039/d1sc06727c] [Citation(s) in RCA: 20] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2021] [Accepted: 02/09/2022] [Indexed: 01/13/2023] Open
Abstract
Iron-catalyzed organic reactions have been attracting increasing research interest but still have serious limitations on activity, selectivity, functional group tolerance, and stability relative to those of precious metal catalysts. Progress in this area will require two key developments: new ligands that can impart new reactivity to iron catalysts and elucidation of the mechanisms of iron catalysis. Herein, we report the development of novel 2-imino-9-aryl-1,10-phenanthrolinyl iron complexes that catalyze both anti-Markovnikov hydrosilylation of terminal alkenes and 1,2-anti-Markovnikov hydrosilylation of various conjugated dienes. Specifically, we achieved the first examples of highly 1,2-anti-Markovnikov hydrosilylation reactions of aryl-substituted 1,3-dienes and 1,1-dialkyl 1,3-dienes with these newly developed iron catalysts. Mechanistic studies suggest that the reactions may involve an Fe(0)–Fe(ii) catalytic cycle and that the extremely crowded environment around the iron center hinders chelating coordination between the diene and the iron atom, thus driving migration of the hydride from the silane to the less-hindered, terminal end of the conjugated diene and ultimately leading to the observed 1,2-anti-Markovnikov selectivity. Our findings, which have expanded the types of iron catalysts available for hydrosilylation reactions and deepened our understanding of the mechanism of iron catalysis, may inspire the development of new iron catalysts and iron-catalyzed reactions. Newly developed iron complexes bearing 2-imino-9-aryl-1,10-phenanthroline ligands were successfully used to catalyze hydrosilylation of terminal alkenes and conjugated dienes in high yields with excellent anti-Markovnikov selectivity.![]()
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Affiliation(s)
- Wei Sun
- Frontiers Science Center for New Organic Matter, State Key Laboratory and Institute of Elemento-Organic Chemistry, College of Chemistry, Nankai University Tianjin 300071 China
| | - Ming-Peng Li
- Frontiers Science Center for New Organic Matter, State Key Laboratory and Institute of Elemento-Organic Chemistry, College of Chemistry, Nankai University Tianjin 300071 China
| | - Lu-Jie Li
- Frontiers Science Center for New Organic Matter, State Key Laboratory and Institute of Elemento-Organic Chemistry, College of Chemistry, Nankai University Tianjin 300071 China
| | - Qiang Huang
- Frontiers Science Center for New Organic Matter, State Key Laboratory and Institute of Elemento-Organic Chemistry, College of Chemistry, Nankai University Tianjin 300071 China
| | - Meng-Yang Hu
- Frontiers Science Center for New Organic Matter, State Key Laboratory and Institute of Elemento-Organic Chemistry, College of Chemistry, Nankai University Tianjin 300071 China
| | - Shou-Fei Zhu
- Frontiers Science Center for New Organic Matter, State Key Laboratory and Institute of Elemento-Organic Chemistry, College of Chemistry, Nankai University Tianjin 300071 China .,Haihe Laboratory of Sustainable Chemical Transformations Tianjin 300192 China
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32
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Selective hydroboration of terminal alkynes catalyzed by heterometallic clusters with uranium–metal triple bonds. Chem 2022. [DOI: 10.1016/j.chempr.2022.03.005] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
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33
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Chen HC, Wu Y, Yu Y, Wang P. Pd-Catalyzed Isomerization of Alkenes. CHINESE J ORG CHEM 2022. [DOI: 10.6023/cjoc202109045] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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34
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Marciniec B, Pietraszuk C, Pawluć P, Maciejewski H. Inorganometallics (Transition Metal-Metalloid Complexes) and Catalysis. Chem Rev 2021; 122:3996-4090. [PMID: 34967210 PMCID: PMC8832401 DOI: 10.1021/acs.chemrev.1c00417] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
![]()
While the formation
and breaking of transition metal (TM)–carbon
bonds plays a pivotal role in the catalysis of organic compounds,
the reactivity of inorganometallic species, that is, those involving
the transition metal (TM)–metalloid (E) bond, is of key importance
in most conversions of metalloid derivatives catalyzed by TM complexes.
This Review presents the background of inorganometallic catalysis
and its development over the last 15 years. The results of mechanistic
studies presented in the Review are related to the occurrence of TM–E
and TM–H compounds as reactive intermediates in the catalytic
transformations of selected metalloids (E = B, Si, Ge, Sn, As, Sb,
or Te). The Review illustrates the significance of inorganometallics
in catalysis of the following processes: addition of metalloid–hydrogen
and metalloid–metalloid bonds to unsaturated compounds; activation
and functionalization of C–H bonds and C–X bonds with
hydrometalloids and bismetalloids; activation and functionalization
of C–H bonds with vinylmetalloids, metalloid halides, and sulfonates;
and dehydrocoupling of hydrometalloids. This first Review on inorganometallic
catalysis sums up the developments in the catalytic methods for the
synthesis of organometalloid compounds and their applications in advanced
organic synthesis as a part of tandem reactions.
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Affiliation(s)
- Bogdan Marciniec
- Faculty of Chemistry, Adam Mickiewicz University, Poznań, Uniwersytetu Poznańskiego 8, 61-614 Poznań, Poland.,Center for Advanced Technology, Adam Mickiewicz University, Poznań, Uniwersytetu Poznańskiego 10, 61-614 Poznań, Poland
| | - Cezary Pietraszuk
- Faculty of Chemistry, Adam Mickiewicz University, Poznań, Uniwersytetu Poznańskiego 8, 61-614 Poznań, Poland
| | - Piotr Pawluć
- Faculty of Chemistry, Adam Mickiewicz University, Poznań, Uniwersytetu Poznańskiego 8, 61-614 Poznań, Poland.,Center for Advanced Technology, Adam Mickiewicz University, Poznań, Uniwersytetu Poznańskiego 10, 61-614 Poznań, Poland
| | - Hieronim Maciejewski
- Faculty of Chemistry, Adam Mickiewicz University, Poznań, Uniwersytetu Poznańskiego 8, 61-614 Poznań, Poland
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35
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Bose SK, Mao L, Kuehn L, Radius U, Nekvinda J, Santos WL, Westcott SA, Steel PG, Marder TB. First-Row d-Block Element-Catalyzed Carbon-Boron Bond Formation and Related Processes. Chem Rev 2021; 121:13238-13341. [PMID: 34618418 DOI: 10.1021/acs.chemrev.1c00255] [Citation(s) in RCA: 96] [Impact Index Per Article: 32.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
Organoboron reagents represent a unique class of compounds because of their utility in modern synthetic organic chemistry, often affording unprecedented reactivity. The transformation of the carbon-boron bond into a carbon-X (X = C, N, and O) bond in a stereocontrolled fashion has become invaluable in medicinal chemistry, agrochemistry, and natural products chemistry as well as materials science. Over the past decade, first-row d-block transition metals have become increasingly widely used as catalysts for the formation of a carbon-boron bond, a transformation traditionally catalyzed by expensive precious metals. This recent focus on alternative transition metals has enabled growth in fundamental methods in organoboron chemistry. This review surveys the current state-of-the-art in the use of first-row d-block element-based catalysts for the formation of carbon-boron bonds.
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Affiliation(s)
- Shubhankar Kumar Bose
- Centre for Nano and Material Sciences (CNMS), Jain University, Jain Global Campus, Bangalore-562112, India
| | - Lujia Mao
- Key Laboratory of Tropical Translational Medicine of Ministry of Education, Hainan Key Laboratory for Research and Development of Tropical Herbs, School of Pharmacy, Hainan Medical University, 571199 Haikou, Hainan, P. R. China
| | - Laura Kuehn
- Institute of Inorganic Chemistry and Institute for Sustainable Chemistry & Catalysis with Boron, Julius-Maximilians-Universität Würzburg, Am Hubland, 97074 Würzburg, Germany
| | - Udo Radius
- Institute of Inorganic Chemistry and Institute for Sustainable Chemistry & Catalysis with Boron, Julius-Maximilians-Universität Würzburg, Am Hubland, 97074 Würzburg, Germany
| | - Jan Nekvinda
- Department of Chemistry, Virginia Tech, Blacksburg, Virginia 24061, United States
| | - Webster L Santos
- Department of Chemistry, Virginia Tech, Blacksburg, Virginia 24061, United States
| | - Stephen A Westcott
- Department of Chemistry and Biochemistry, Mount Allison University, Sackville, NB E4L 1G8, Canada
| | - Patrick G Steel
- Department of Chemistry, University of Durham, Science Laboratories South Road, Durham DH1 3LE, U.K
| | - Todd B Marder
- Institute of Inorganic Chemistry and Institute for Sustainable Chemistry & Catalysis with Boron, Julius-Maximilians-Universität Würzburg, Am Hubland, 97074 Würzburg, Germany
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36
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Bertini S, Albrecht M. Mesoionic Carbene Cobalt Complexes as Multipurpose Catalyst Precursors for Hydrosilylation and Dihydropyrimidinone Synthesis. Helv Chim Acta 2021. [DOI: 10.1002/hlca.202100181] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Simone Bertini
- Department of Chemistry Biochemistry and Pharmaceutical Sciences University of Bern Freiestrasse 3 CH-3012 Bern Switzerland
| | - Martin Albrecht
- Department of Chemistry Biochemistry and Pharmaceutical Sciences University of Bern Freiestrasse 3 CH-3012 Bern Switzerland
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37
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Chen K, Zhu H, Li Y, Peng Q, Guo Y, Wang X. Dinuclear Cobalt Complex-Catalyzed Stereodivergent Semireduction of Alkynes: Switchable Selectivities Controlled by H 2O. ACS Catal 2021. [DOI: 10.1021/acscatal.1c04141] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Ke Chen
- Frontiers Science Center for Transformative Molecules, School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, China
- State Key Laboratory of Oganometallic Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, China
| | - Hongdan Zhu
- State Key Laboratory of Elemento-Organic Chemistry and Frontiers Science Center for New Organic Matter, College of Chemistry, Nankai University, 94 Weijin Road, Tianjin 300071, China
| | - Yuling Li
- State Key Laboratory of Oganometallic Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, China
| | - Qian Peng
- State Key Laboratory of Elemento-Organic Chemistry and Frontiers Science Center for New Organic Matter, College of Chemistry, Nankai University, 94 Weijin Road, Tianjin 300071, China
| | - Yinlong Guo
- State Key Laboratory of Oganometallic Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, China
| | - Xiaoming Wang
- State Key Laboratory of Oganometallic Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, China
- School of Chemistry and Materials Science, Hangzhou Institute for Advanced Study, University of Chinese Academy of Sciences, 1 Sub-lane Xiangshan, Hangzhou 310024, China
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38
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Panyam PKR, Atwi B, Ziegler F, Frey W, Nowakowski M, Bauer M, Buchmeiser MR. Rh(I)/(III)-N-Heterocyclic Carbene Complexes: Effect of Steric Confinement Upon Immobilization on Regio- and Stereoselectivity in the Hydrosilylation of Alkynes. Chemistry 2021; 27:17220-17229. [PMID: 34672398 DOI: 10.1002/chem.202103099] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2021] [Indexed: 12/14/2022]
Abstract
Rh(I) NHC and Rh(III) Cp* NHC complexes (Cp*=pentamethylcyclopentadienyl, NHC=N-heterocyclic carbene=pyrid-2-ylimidazol-2-ylidene (Py-Im), thiophen-2-ylimidazol-2-ylidene) are presented. Selected catalysts were selectively immobilized inside the mesopores of SBA-15 with average pore diameters of 5.0 and 6.2 nm. Together with their homogenous progenitors, the immobilized catalysts were used in the hydrosilylation of terminal alkynes. For aromatic alkynes, both the neutral and cationic Rh(I) complexes showed excellent reactivity with exclusive formation of the β(E)-isomer. For aliphatic alkynes, however, selectivity of the Rh(I) complexes was low. By contrast, the neutral and cationic Rh(III) Cp* NHC complexes proved to be highly regio- and stereoselective catalysts, allowing for the formation of the thermodynamically less stable β-(Z)-vinylsilane isomers at room temperature. Notably, the SBA-15 immobilized Rh(I) catalysts, in which the pore walls provide an additional confinement, showed excellent β-(Z)-selectivity in the hydrosilylation of aliphatic alkynes, too. Also, in the case of 4-aminophenylacetylene, selective formation of the β(Z)-isomer was observed with a neutral SBA-15 supported Rh(III) Cp* NHC complex but not with its homogenous counterpart. These are the first examples of high β(Z)-selectivity in the hydrosilylation of alkynes by confinement generated upon immobilization inside mesoporous silica.
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Affiliation(s)
- Pradeep K R Panyam
- Institute of Polymer Chemistry, University of Stuttgart, Pfaffenwaldring 55, 70569, Stuttgart, Germany
| | - Boshra Atwi
- Institute of Polymer Chemistry, University of Stuttgart, Pfaffenwaldring 55, 70569, Stuttgart, Germany
| | - Felix Ziegler
- Institute of Polymer Chemistry, University of Stuttgart, Pfaffenwaldring 55, 70569, Stuttgart, Germany
| | - Wolfgang Frey
- Institute of Organic Chemistry, University of Stuttgart, Pfaffenwaldring 55, 70569, Stuttgart, Germany
| | - Michal Nowakowski
- Chemistry Department, Paderborn University, Warburger Str. 100, 33098, Paderborn, Germany
| | - Matthias Bauer
- Chemistry Department, Paderborn University, Warburger Str. 100, 33098, Paderborn, Germany
| | - Michael R Buchmeiser
- Institute of Polymer Chemistry, University of Stuttgart, Pfaffenwaldring 55, 70569, Stuttgart, Germany.,German Institutes of Textile and Fiber Research, Körschtalstr. 26, 73770, Denkendorf, Germany
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39
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Regio‐controllable Cobalt‐Catalyzed Sequential Hydrosilylation/Hydroboration of Arylacetylenes. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202109089] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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40
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Lu D, Lu P, Lu Z. Cobalt‐Catalyzed Asymmetric 1,4‐Reduction of
β,β‐
Dialkyl
α
,
β
‐Unsaturated Esters with PMHS. European J Org Chem 2021. [DOI: 10.1002/ejoc.202100856] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Affiliation(s)
- Dongpo Lu
- Department of Chemistry Zhejiang University Hangzhou 310058 China
| | - Peng Lu
- Department of Chemistry Zhejiang University Hangzhou 310058 China
| | - Zhan Lu
- Department of Chemistry Zhejiang University Hangzhou 310058 China
- College of Chemistry Zhengzhou University Zhengzhou 450001 China
- Key Laboratory of Organosilicon Chemistry and Material Technology of Ministry of Education Hangzhou Normal University Hangzhou 310058 China
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41
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Zhu SF, He P, Hu MY, Zhang XY. Transition-Metal-Catalyzed Stereo- and Regioselective Hydrosilylation of Unsymmetrical Alkynes. SYNTHESIS-STUTTGART 2021. [DOI: 10.1055/a-1605-9572] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
AbstractAlkyne hydrosilylation is one of the most efficient methods for the synthesis of alkenyl silicon derivatives and has been a hot topic of research for decades. This short review summarizes the progress in transition-metal-catalyzed stereo- and regioselective hydrosilylation of unsymmetrical alkynes. Topics are discussed based on different types of alkynes and the selectivities.1 Introduction2 Terminal Alkyne Hydrosilylation2.1 β-E Selectivity2.2 β-Z Selectivity2.3 α-selectivity3 Internal Alkyne Hydrosilylation3.1 Aryl–Alkyl Acetylenes3.2 Alkyl–Alkyl Acetylenes3.3 Internal Alkynes with Polarized Substituents4 Summary and Outlook
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42
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Cheng Z, Guo J, Sun Y, Zheng Y, Zhou Z, Lu Z. Regio-controllable Cobalt-Catalyzed Sequential Hydrosilylation/Hydroboration of Arylacetylenes. Angew Chem Int Ed Engl 2021; 60:22454-22460. [PMID: 34347353 DOI: 10.1002/anie.202109089] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2021] [Indexed: 12/15/2022]
Abstract
Regiodivergent addition reactions provide straightforward and atom-economic approaches to access different regioisomers. However, the regio-chemistry control to access all the possible results is still challenging especially for the reaction involving multiple addition steps. Herein, we reported regio-controllable cobalt-catalyzed sequential hydrosilylation/hydroboration of arylacetylenes, delivering all the possible regio-outcomes with high regioselectivities (up to >20/1 rr for all the cases). Each regioisomer of value-added silylboronates could be efficiently and regioselectively obtained from the same materials. The adjustment of the ligands of cobalt catalysts combined with dual catalysis relay strategy is the key to achieve regio-chemistry control. This regio-controllable research might inspire the exploration of the diversity-oriented synthesis that involves multiple additions and provide full sets of regioisomers of other synthetic useful molecules.
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Affiliation(s)
- Zhaoyang Cheng
- Department of Chemistry, Zhejiang University, Hangzhou, 310058, China
| | - Jun Guo
- Department of Chemistry, Zhejiang University, Hangzhou, 310058, China
| | - Yufeng Sun
- Department of Chemistry, Zhejiang University, Hangzhou, 310058, China
| | - Yushan Zheng
- Department of Chemistry, Zhejiang University, Hangzhou, 310058, China
| | - Zhehong Zhou
- Department of Chemistry, Zhejiang University, Hangzhou, 310058, China
| | - Zhan Lu
- Department of Chemistry, Zhejiang University, Hangzhou, 310058, China
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43
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Xu S, Geng P, Li Y, Liu G, Zhang L, Guo Y, Huang Z. Pincer Iron Hydride Complexes for Alkene Isomerization: Catalytic Approach to Trisubstituted ( Z)-Alkenyl Boronates. ACS Catal 2021. [DOI: 10.1021/acscatal.1c02432] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Songgen Xu
- The State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, China
| | - Peiyu Geng
- The State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, China
| | - Yuling Li
- The State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, China
| | - Guixia Liu
- The State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, China
- Chang-Kung Chuang Institute, East China Normal University, Shanghai 200062, China
| | - Lei Zhang
- School of Chemistry and Material Sciences, Hangzhou Institute of Advanced Study, University of Chinese Academy of Sciences, 1 Sub-lane Xiangshan, Hangzhou 310024, China
| | - Yinlong Guo
- The State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, China
| | - Zheng Huang
- The State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, China
- School of Chemistry and Material Sciences, Hangzhou Institute of Advanced Study, University of Chinese Academy of Sciences, 1 Sub-lane Xiangshan, Hangzhou 310024, China
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44
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Wu J, Tongdee S, Ammaiyappan Y, Darcel C. A Concise Route to Cyclic Amines from Nitroarenes and Ketoacids under Iron‐Catalyzed Hydrosilylation Conditions. Adv Synth Catal 2021. [DOI: 10.1002/adsc.202100500] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Jiajun Wu
- UnivRennes CNRS ISCR (Institut des Sciences Chimiques de Rennes) UMR 6226 F-35000 Rennes France
| | - Satawat Tongdee
- UnivRennes CNRS ISCR (Institut des Sciences Chimiques de Rennes) UMR 6226 F-35000 Rennes France
| | - Yuvaraj Ammaiyappan
- UnivRennes CNRS ISCR (Institut des Sciences Chimiques de Rennes) UMR 6226 F-35000 Rennes France
| | - Christophe Darcel
- UnivRennes CNRS ISCR (Institut des Sciences Chimiques de Rennes) UMR 6226 F-35000 Rennes France
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45
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Li C, Song S, Li Y, Xu C, Luo Q, Guo Y, Wang X. Selective hydroboration of unsaturated bonds by an easily accessible heterotopic cobalt catalyst. Nat Commun 2021; 12:3813. [PMID: 34155208 PMCID: PMC8217234 DOI: 10.1038/s41467-021-24117-5] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2021] [Accepted: 06/04/2021] [Indexed: 11/09/2022] Open
Abstract
Homogeneous earth-abundant metal catalysis based on well-defined molecular complexes has achieved great advance in synthetic methodologies. However, sophisticated ligand, hazardous activator and multistep synthesis starting from base metal salts are generally required for the generation of active molecular catalysts, which may hinder their broad application in large scale organic synthesis. Therefore, the development of metal cluster catalysts formed in situ from simple earth-abundant metal salts is of importance for the practical utilization of base metal resource, yet it is still in its infancy. Herein, a mixture of catalytic amounts of cobalt (II) iodide and potassium tert-butoxide is discovered to be highly active for selective hydroboration of vinylarenes and dihydroboration of nitriles, affording a good yield of diversified hydroboration products that without isolation can readily undergo further one pot transformations. It should be highlighted that the alkoxide-pinacolborane combination acts as an efficient activation strategy to activate cobalt (II) iodide for the generation of metastable heterotopic cobalt catalysts in situ, which is proposed to be catalytically active species. Homogeneous earth-abundant metal catalysis based on well-defined metal complexes is of interest for organic synthesis, but typically employs expensive catalysts, air sensitive or synthetically challenging chemicals. Here, the authors report an efficient and regio-selective catalytic system for hydroboration of vinylarenes and organic nitriles with HBPin, using commercially available CoI2 and KOtBu under ligand-free conditions.
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Affiliation(s)
- Chuhan Li
- State Key Laboratory of Organometallic Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, Shanghai, China
| | - Shuo Song
- State Key Laboratory of Organometallic Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, Shanghai, China
| | - Yuling Li
- State Key Laboratory of Organometallic Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, Shanghai, China
| | - Chang Xu
- Department of Chemistry, Anhui University, Hefei, Anhui, China
| | - Qiquan Luo
- Institutes of Physical Science and Information Technology, Anhui University, Hefei, Anhui, China
| | - Yinlong Guo
- State Key Laboratory of Organometallic Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, Shanghai, China.
| | - Xiaoming Wang
- State Key Laboratory of Organometallic Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, Shanghai, China. .,School of Chemistry and Materials Science, Hangzhou Institute for Advanced Study, University of Chinese Academy of Sciences, Hangzhou, China.
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46
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Guo J, Cheng Z, Chen J, Chen X, Lu Z. Iron- and Cobalt-Catalyzed Asymmetric Hydrofunctionalization of Alkenes and Alkynes. Acc Chem Res 2021; 54:2701-2716. [PMID: 34011145 DOI: 10.1021/acs.accounts.1c00212] [Citation(s) in RCA: 106] [Impact Index Per Article: 35.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Transition metal catalyzed asymmetric hydrofunctionalization of readily available unsaturated hydrocarbons presents one of the most straightforward and atom-economic protocols to access valuable optically active products. For decades, noble transition metal catalysts have laid the cornerstone in this field, on account of their superior reactivity and selectivity. In recent years, from an economical and sustainable standpoint, first-row, earth-abundant transition metals have received considerable attention, due to their high natural reserves, affordable costs, and low toxicity. Meanwhile, the earth-abundant metal catalyzed hydrofunctionalization reactions have also gained much interest and been investigated gradually. However, since chiral ligand libraries for earth-abundant transition-metal catalysis are limited to date, the development of highly enantioselective versions remains a significant challenge.This Account summarizes our recent efforts in developing suitable chiral ligands for iron and cobalt catalysts and their applications in the highly enantioselective hydrofunctionalization reactions (hydroboration and hydrosilylation) of alkenes and alkynes. In ligand design, we envisioned that chiral unsymmetric NNN-tridentate (UNT) ligand scaffolds could promote these enantioselective transformations with earth-abundant metals. Therefore, several types of chiral UNT ligands were designed and prepared in our laboratory, utilizing readily available natural amino acids as chiral sources. In the very beginning, chiral oxazoline iminopyridine (OIP) ligands were proposed and investigated through the rational combination of nitrogen-containing ligand scaffolds. After a systematic survey of the ligand effects, the imine moiety in the rigid OIP ligands was replaced by a conformationally more flexible amine unit, leading to the construction of reactive oxazoline aminoisopropylpyridine (OAP) ligands. Subsequently, imidazoline iminopyridine (IIP) and thiazoline iminopyridine (TIP) ligands were prepared by altering the oxygen atom of oxazoline with nitrogen and sulfur linkers, respectively. To further expand the chiral ligand library, other tridentate ligands containing a twisted pincer, anionic, and nonrigid backbone were also designed and synthesized, including iminophenyl oxazolinyl phenylamine (IPOPA) and imidazoline phenyl picolinamide (ImPPA). The efficacy of these chiral UNT ligands for asymmetric induction in iron and cobalt catalysis has been demonstrated through asymmetric hydrofunctionalization of alkenes and asymmetric sequential hydrofunctionalization of alkynes, which exhibit excellent reactivity as well as high chemo-, regio-, and stereoselectivity with broad functional group tolerance. Notably, highly regio- and enantioselective hydrofunctionalization of challenging substrates, such as 1,1-disubstituted aryl alkenes and terminal aliphatic alkenes, was also achieved. Furthermore, the development of asymmetric sequential isomerization/hydroboration of internal alkenes and sequential hydrofunctionalization of alkynes further demonstrates the synthetic power of these catalytic systems. The chiral enantioenriched products obtained by these methodologies could be potentially utilized in organic synthesis, medicinal chemistry, and materials science. We believe that our continuous efforts in this field would be beneficial to the development of asymmetric earth-abundant metal catalysis.
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Affiliation(s)
- Jun Guo
- Department of Chemistry, Zhejiang University, Hangzhou 310058, China
| | - Zhaoyang Cheng
- Department of Chemistry, Zhejiang University, Hangzhou 310058, China
| | - Jianhui Chen
- Department of Chemistry, Zhejiang University, Hangzhou 310058, China
- College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou 325035, China
| | - Xu Chen
- Department of Chemistry, Zhejiang University, Hangzhou 310058, China
| | - Zhan Lu
- Department of Chemistry, Zhejiang University, Hangzhou 310058, China
- Center of Chemistry for Frontier Technologies, Department of Chemistry, Zhejiang University, Hangzhou 310058, China
- College of Chemistry, Zhengzhou University, Zhengzhou, Henan 450001, China
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47
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Mutoh Y, Yamamoto K, Mohara Y, Saito S. (Z)-Selective Hydrosilylation and Hydroboration of Terminal Alkynes Enabled by Ruthenium Complexes with an N-Heterocyclic Carbene Ligand. CHEM REC 2021; 21:3429-3441. [PMID: 34028185 DOI: 10.1002/tcr.202100083] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2021] [Revised: 04/30/2021] [Accepted: 05/03/2021] [Indexed: 11/08/2022]
Abstract
Metal-catalyzed trans-1,2-hydrosilylations and hydroborations of terminal alkynes that generate synthetically valuable (Z)-alkenylsilanes and (Z)-alkenylboranes remain challenging due to the (E)-selective nature of the reactions and the formation of the thermodynamically unfavorable (Z)-isomer. The development of new, efficient catalytic systems for the (Z)-selective hydrosilylation and hydroboration of terminal alkynes is thus highly desirable from a fundamental perspective as it would deepen our understanding of the metal-catalyzed (Z)-selective hydrosilylation and hydroboration of terminal alkynes. This personal account describes our research for developing a ruthenium complex that can efficiently catalyze the hydrosilylation and hydroboration of terminal alkynes, and for exploring the factors controlling (Z)-selectivity of the reactions. Our effort into the activation of B-protected boronic acids, R-B(dan) (dan=naphthalene-1,8-diaminato), that was believed not to participate in Suzuki-Miyaura cross-coupling, is also discussed.
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Affiliation(s)
- Yuichiro Mutoh
- Department of Chemistry, Faculty of Science, Tokyo University of Science 1-3 Kagurazaka, Shinjuku-ku, Tokyo, 162-8601, Japan.,RIKEN Center for Sustainable Resource Science 2-1 Hirosawa, Wako, Saitama, 351-0198, Japan
| | - Kensuke Yamamoto
- Department of Chemistry, Faculty of Science, Tokyo University of Science 1-3 Kagurazaka, Shinjuku-ku, Tokyo, 162-8601, Japan
| | - Yusei Mohara
- Department of Chemistry, Faculty of Science, Tokyo University of Science 1-3 Kagurazaka, Shinjuku-ku, Tokyo, 162-8601, Japan
| | - Shinichi Saito
- Department of Chemistry, Faculty of Science, Tokyo University of Science 1-3 Kagurazaka, Shinjuku-ku, Tokyo, 162-8601, Japan
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48
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Yang D, Huang H, Zhang H, Yin LM, Song MP, Niu JL. Regioselective Intermolecular Hydroamination of Unactivated Alkenes: “Co–H” Enabled Remote Functionalization. ACS Catal 2021. [DOI: 10.1021/acscatal.1c00625] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Affiliation(s)
- Dandan Yang
- Green Catalysis Center, College of Chemistry, Zhengzhou University, Zhengzhou 450001, P. R. China
| | - Hai Huang
- Jiangsu Key Laboratory of Advanced Catalytic Materials & Technology, School of Petrochemical Engineering, Changzhou University, Changzhou 213164, China
| | - He Zhang
- Green Catalysis Center, College of Chemistry, Zhengzhou University, Zhengzhou 450001, P. R. China
| | - Li-Ming Yin
- Green Catalysis Center, College of Chemistry, Zhengzhou University, Zhengzhou 450001, P. R. China
| | - Mao-Ping Song
- Green Catalysis Center, College of Chemistry, Zhengzhou University, Zhengzhou 450001, P. R. China
| | - Jun-Long Niu
- Green Catalysis Center, College of Chemistry, Zhengzhou University, Zhengzhou 450001, P. R. China
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49
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Viereck P, Rummelt SM, Soja NA, Pabst TP, Chirik PJ. Synthesis and Asymmetric Alkene Hydrogenation Activity of C2-Symmetric Enantioenriched Pyridine Dicarbene Iron Dialkyl Complexes. Organometallics 2021. [DOI: 10.1021/acs.organomet.1c00046] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Peter Viereck
- Department of Chemistry, Princeton University, Princeton, New Jersey 08544, United States
| | - Stephan M. Rummelt
- Department of Chemistry, Princeton University, Princeton, New Jersey 08544, United States
| | - Natalia A. Soja
- Department of Chemistry, Princeton University, Princeton, New Jersey 08544, United States
| | - Tyler P. Pabst
- Department of Chemistry, Princeton University, Princeton, New Jersey 08544, United States
| | - Paul J. Chirik
- Department of Chemistry, Princeton University, Princeton, New Jersey 08544, United States
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50
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Zhang H, Wang E, Geng S, Liu Z, He Y, Peng Q, Feng Z. Experimental and Computational Studies of the Iron‐Catalyzed Selective and Controllable Defluorosilylation of Unactivated Aliphatic
gem
‐Difluoroalkenes. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202100049] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Huan Zhang
- Chongqing Key Laboratory of Natural Product Synthesis and Drug Research School of Pharmaceutical Sciences Chongqing University Chongqing 401331 P.R. China
| | - Enhui Wang
- State Key Laboratory of Elemento-Organic Chemistry College of Chemistry Nankai University Tianjin 300071 China
| | - Shasha Geng
- Chongqing Key Laboratory of Natural Product Synthesis and Drug Research School of Pharmaceutical Sciences Chongqing University Chongqing 401331 P.R. China
| | - Zhengli Liu
- Chongqing Key Laboratory of Natural Product Synthesis and Drug Research School of Pharmaceutical Sciences Chongqing University Chongqing 401331 P.R. China
| | - Yun He
- Chongqing Key Laboratory of Natural Product Synthesis and Drug Research School of Pharmaceutical Sciences Chongqing University Chongqing 401331 P.R. China
| | - Qian Peng
- State Key Laboratory of Elemento-Organic Chemistry College of Chemistry Nankai University Tianjin 300071 China
| | - Zhang Feng
- Chongqing Key Laboratory of Natural Product Synthesis and Drug Research School of Pharmaceutical Sciences Chongqing University Chongqing 401331 P.R. China
- Sichuan Key Laboratory of Medical Imaging North Sichuan Medical College Nanchong P. R. China
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