1
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Yu M, Gu X, Ho CY. (NHC)Ni(II)-catalyzed regioselective hydroalkenylation of norbornene derivatives: fine-tuning of NHC ligands and donor alkenes. Chem Commun (Camb) 2024; 60:10508-10511. [PMID: 39225060 DOI: 10.1039/d4cc03258f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/04/2024]
Abstract
This study introduced a novel cross-hydroalkenylation approach for addressing a resilient challenge in C5-exo-selective norbornene derivative functionalization. The process, guided by mutual interactions among the NHC-Ni catalyst and the substrate pairs, ensured highly chemo- and regio-selective insertion.
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Affiliation(s)
- Meng Yu
- Guangdong Provincial Key Laboratory of Catalysis, Southern University of Science and Technology, (SUSTech), Shenzhen 518055, China.
- Department of Chemistry, Southern University of Science and Technology (SUSTech), Shenzhen 518055, China
| | - Xiao Gu
- Shenzhen Grubbs Institute, Southern University of Science and Technology (SUSTech), Shenzhen 518055, China
- Department of Chemistry, Southern University of Science and Technology (SUSTech), Shenzhen 518055, China
| | - Chun-Yu Ho
- Guangdong Provincial Key Laboratory of Catalysis, Southern University of Science and Technology, (SUSTech), Shenzhen 518055, China.
- Shenzhen Grubbs Institute, Southern University of Science and Technology (SUSTech), Shenzhen 518055, China
- Department of Chemistry, Southern University of Science and Technology (SUSTech), Shenzhen 518055, China
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2
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Zhang Z, Chen Y, Gu X, Ho CY. (NHC)Ni(II)-Directed Insertions and Higher Substituted Olefin Synthesis from Simple Olefins. Acc Chem Res 2023; 56:1070-1086. [PMID: 37036948 DOI: 10.1021/acs.accounts.3c00035] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
Abstract
ConspectusWell-controlled olefin insertion is critical for achieving catalytic and productive bulk and fine-chemical synthesis. Developing efficient and selective methods for meeting diverse insertion demands is extremely noteworthy, as it supports numerous transformations. The challenges are related to improving catalyst performance and selectivity control and uniting previously unreactive substrate pairs to achieve higher molecular structural complexity and utility. Nickel catalysts have received persistent attention in higher substituted olefin synthesis and polymerization, and numerous new strategies have been established to fulfill the ever-changing demands. This Account focuses on the recent progress based on N-heterocyclic carbene (NHC) ligands and nickel catalysts in our laboratory in using simple terminal olefins as olefin donors or acceptors.It begins with a brief history of olefin codimerization and the major advances in hydrovinylation achieved by other research groups using ethylene as an olefin donor. It then describes problems related to the reductive elimination that can occur when both the hydrometalated alkene and NHC are on the catalyst. It emphasizes the impact of NHC catalyst generation methods on the competing reactivity. Next, it explains the principal challenges and great opportunities in using our method (with α-olefins as olefin donors and alkenyl sources) to replace intermolecular reductive hydroalkenylation reactions (which require rare and more expensive alkenyl halides and boronic acids as reactants, alongside a stoichiometric amount of metallic reagents). The Account then illustrates the potential uses of our method for solving challenging organic synthesis problems using tailor-made (NHC)Ni(II) catalysts to allow redox-neutral catalytic cycles based on high chemo- and regioselective cross-insertion controls. It shows that upon optimal steric and electronic cooperation between the NHC, olefin donor, and olefin acceptor, regiodivergent insertion and convergent synthesis can be achieved easily.In the course of our work, we uncovered several unique insights into regulating (anti-)Markovnikov hydronickelation, carbonickelation, hydrocarbonation, ring closure, 1,3-allyl shift, isomerization, and catalyst regeneration under green, neutral, and mild-temperature conditions. These insights are also outlined here, along with theoretical calculations that offer additional understandings of the insertion reactivity and selectivity differences observed between the NHC and the highly related phosphorus-based Ni(II) hydride-catalyzed cross-hydroalkenylation and cycloisomerization systems.Compared to traditional olefin and cyclic structure synthesis technology, such as olefin cross-metathesis, enyne cyclization, and cross-coupling reactions, the new catalyst systems often offer previously inaccessible product structural characteristics, substrate scope, and outcomes. In particular, the method is effective for the catalytic synthesis of unsymmetrical and functionalized 1,1-disubstituted olefins (a.k.a. gem-olefins), 1,4-dienes (a.k.a. skipped dienes), conjugated dienes, endo- and exocyclic olefins, fused and spiro rings, and aromatic products. These syntheses are variously achieved by cross-hydroalkenylation, insertion-induced rearrangement, cycloadditions, and other approaches inspired by our investigations and detailed in this Account. Cross-hydroalkenylation can be achieved with high enantioselectivity by application of carefully designed and structurally flexible C1 and C2 chiral NHC ligands, yielding a pool of chiral branched alkenes and 1,4-dienes directly from simple chemical feedstocks used in industry. This Account will draw further attention to green alkenylation and the related development of redox-neutral catalytic cycles.
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Affiliation(s)
- Zhifeng Zhang
- Guangdong Provincial Key Laboratory of Catalysis, Southern University of Science and Technology (SUSTech), Shenzhen 518055, China
- Shenzhen Grubbs Institute, Southern University of Science and Technology (SUSTech), Shenzhen 518055, China
- Department of Chemistry, Southern University of Science and Technology (SUSTech), Shenzhen 518055, China
| | - Yang Chen
- Guangdong Provincial Key Laboratory of Catalysis, Southern University of Science and Technology (SUSTech), Shenzhen 518055, China
- Department of Chemistry, Southern University of Science and Technology (SUSTech), Shenzhen 518055, China
| | - Xiao Gu
- Guangdong Provincial Key Laboratory of Catalysis, Southern University of Science and Technology (SUSTech), Shenzhen 518055, China
- Department of Chemistry, Southern University of Science and Technology (SUSTech), Shenzhen 518055, China
| | - Chun-Yu Ho
- Guangdong Provincial Key Laboratory of Catalysis, Southern University of Science and Technology (SUSTech), Shenzhen 518055, China
- Shenzhen Grubbs Institute, Southern University of Science and Technology (SUSTech), Shenzhen 518055, China
- Department of Chemistry, Southern University of Science and Technology (SUSTech), Shenzhen 518055, China
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3
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Huang R, Cai J, Yao L, Bai Y, Guo K, Zhao L. Mechanistic study of cobalt(I)-catalyzed asymmetric coupling of ethylene and enynes to functionalized cyclobutanes. J Comput Chem 2021; 43:440-447. [PMID: 34951487 DOI: 10.1002/jcc.26803] [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: 12/03/2021] [Accepted: 12/08/2021] [Indexed: 11/08/2022]
Abstract
Density functional theory (DFT) calculations have been performed to gain insight into the reaction mechanism of the Co(I)-catalyzed asymmetric [2 + 2] cycloaddition reaction of enyne 1a with ethylene 2 to give the functionalized cyclobutene E-4a possessing a chiral, all-carbon quaternary center in the ring framework (Science, 361, 68-72). This study reveals that the whole catalysis can be characterized via three stages: (i) oxidative dimerization followed by reductive elimination gives the intermediate IM3, (ii) the alkenyl-Co(III) metallacycloheptene IM6 formation with the addition of another equivalent ethylene via an oxidative dimerization process, (iii) β-Hydrogen elimination and reductive elimination from IM6 to result in the final product E-4a and regenerate the active speices IM1 for the next catalytic cycle. Each stage is kinetically and thermodynamically feasible for experimental realization under mild conditions, and the formation of the alkenyl-Co(III) metallacycloheptene IM6, with a barrier of 27.2 kcal mol-1 (i.e., IM2 → TS4), should be the rate-determining step (RDS) during the whole catalysis. In addition, the origins of enantioselectivity and regioselectivity of the product are discussed.
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Affiliation(s)
- Runfeng Huang
- School of Chemistry and Molecular Engineering, Institute of Advanced Synthesis, Nanjing Tech University, Nanjing, China
| | - Jiali Cai
- School of Chemistry and Molecular Engineering, Institute of Advanced Synthesis, Nanjing Tech University, Nanjing, China
| | - Lei Yao
- School of Chemistry and Molecular Engineering, Institute of Advanced Synthesis, Nanjing Tech University, Nanjing, China
| | - Yuna Bai
- School of Chemistry and Molecular Engineering, Institute of Advanced Synthesis, Nanjing Tech University, Nanjing, China
| | - Kai Guo
- College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, Nanjing, China
| | - Lili Zhao
- School of Chemistry and Molecular Engineering, Institute of Advanced Synthesis, Nanjing Tech University, Nanjing, China
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4
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Biswas S, Parsutkar MM, Jing SM, Pagar VV, Herbort JH, RajanBabu TV. A New Paradigm in Enantioselective Cobalt Catalysis: Cationic Cobalt(I) Catalysts for Heterodimerization, Cycloaddition, and Hydrofunctionalization Reactions of Olefins. Acc Chem Res 2021; 54:4545-4564. [PMID: 34847327 PMCID: PMC8721816 DOI: 10.1021/acs.accounts.1c00573] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
One of the major challenges facing organic synthesis in the 21st century is the utilization of abundantly available feedstock chemicals for fine chemical synthesis. Regio- and enantioselective union of easily accessible 1,3-dienes and other feedstocks like ethylene, alkyl acrylates, and aldehydes can provide valuable building blocks adorned with latent functionalities for further synthetic elaboration. Through an approach that relies on mechanistic insights and systematic examination of ligand and counterion effects, we developed an efficient cobalt-based catalytic system [(P∼P)CoX2/Me3Al] (P∼P = bisphosphine) to effect the first enantioselective heterodimerization of several types of 1,3-dienes with ethylene. In addition to simple cyclic and acyclic dienes, siloxy-1,3-dienes participate in this reaction, giving highly functionalized, nearly enantiopure silyl enolates, which can be used for subsequent C-C and C-X bond-forming reactions. As our understanding of the mechanism of this reaction improved, our attention was drawn to more challenging partners like alkyl acrylates (one of the largest volume feedstocks) as the olefin partners instead of ethylene. Prompted by the intrinsic limitations of using aluminum alkyls as the activators for this reaction, we explored the fundamental chemistry of the lesser known (P∼P)Co(I)X species and discovered that in the presence of halide sequestering agents, such as sodium tetrakis[3,5-bis(trifluoromethyl)phenyl]borate (NaBARF) or (C6F5)3B, certain chiral bisphosphine complexes are superb catalysts for regio- and enantioselective heterodimerization of 1,3-dienes and alkyl acrylates. We have since found that these cationic Co(I) catalysts, most conveniently prepared in situ by reduction of the corresponding cobalt(II) halide complexes by zinc in the presence of NaBARF, promote enantioselective [2 + 2]-cycloaddition between alkynes and an astonishing variety of alkenyl derivatives to give highly functionalized cyclobutenes. In reactions between 1,3-enynes and ethylene, the [2 + 2]-cycloaddition between the alkyne and ethylene is followed by a 1,4-addition of ethylene in a tandem fashion to give nearly enantiopure cyclobutanes with an all-carbon quaternary center, giving a set of molecules that maps well into many medicinally relevant compounds. In another application, we find that the cationic Co(I)-catalysts promote highly selective hydroacylation and 1,2-hydroboration of prochiral 1,3-dienes. Further, we find that a cationic Co(I)-catalyst promotes cycloisomerization followed by hydroalkenylation of 1,6-enynes to produce highly functionalized carbo- and heterocyclic compounds. Surprisingly the regioselectivity of the alkene addition depends on whether it is a simple alkene or an acrylate, and the acrylate addition produces an uncommon Z-adduct. This Account will provide a summary of the enabling basic discoveries and the attendant developments that led to the unique cationic Co(I)-complexes as catalysts for disparate C-C and C-B bond-forming reactions. It is our hope that this Account will stimulate further work with these highly versatile catalysts which are derived from an earth-abundant metal.
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Affiliation(s)
- Souvagya Biswas
- Department of Chemistry and Biochemistry, The Ohio State University, 100 West 18th Avenue, Columbus, Ohio 43210, United States
| | - Mahesh M Parsutkar
- Department of Chemistry and Biochemistry, The Ohio State University, 100 West 18th Avenue, Columbus, Ohio 43210, United States
| | - Stanley M Jing
- Department of Chemistry and Biochemistry, The Ohio State University, 100 West 18th Avenue, Columbus, Ohio 43210, United States
| | - Vinayak V Pagar
- Department of Chemistry and Biochemistry, The Ohio State University, 100 West 18th Avenue, Columbus, Ohio 43210, United States
| | - James H Herbort
- Department of Chemistry and Biochemistry, The Ohio State University, 100 West 18th Avenue, Columbus, Ohio 43210, United States
| | - T V RajanBabu
- Department of Chemistry and Biochemistry, The Ohio State University, 100 West 18th Avenue, Columbus, Ohio 43210, United States
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5
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Herbort JH, Lalisse RF, Hadad CM, RajanBabu TV. Cationic Co(I) Catalysts for Regiodivergent Hydroalkenylation of 1,6-Enynes. An Uncommon cis-β-C-H Activation Leads to Z-Selective Coupling of Acrylates. ACS Catal 2021; 11:9605-9617. [PMID: 34745711 DOI: 10.1021/acscatal.1c02530] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Two intermolecular hydroalkenylation reactions of 1,6-enynes are presented which yield substituted 5-membered carbo- and -heterocycles. This reactivity is enabled by a cationic bis-diphenylphosphinopropane (DPPP)CoI species which forms a cobaltacyclopentene intermediate by oxidative cyclization of the enyne. This key species interacts with alkenes in distinct fashion, depending on the identity of the coupling partner to give regiodivergent products. Simple alkenes undergo insertion reactions to furnish 1,3-dienes whereby one of the alkenes is tetrasubstituted. When acrylates are employed as coupling partners, the site of intermolecular C-C formation shifts from the alkyne to the alkene motif of the enyne, yielding Z-substituted-acrylate derivatives. Computational studies provide support for our experimental observations and show that the turnover-limiting steps in both reactions are the interactions of the alkenes with the cobaltacyclopentene intermediate via either a 1,2-insertion in the case of ethylene, or an unexpected β-C-H activation in the case of most acrylates. Thus, the H syn to the ester is activated through the coordination of the acrylate carbonyl to the cobaltacycle intermediate, which explains the uncommon Z-selectivity and regiodivergence. Variable time normalization analysis (VTNA) of the kinetic data reveals a dependance upon the concentration of cobalt, acrylate, and activator. A KIE of 2.1 was observed with methyl methacrylate in separate flask experiments, indicating that C-H cleavage is the turnover-limiting step in the catalytic cycle. Lastly, a Hammett study of aryl-substituted enynes yields a ρ value of -0.4, indicating that more electron-rich substituents accelerate the rate of the reaction.
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Affiliation(s)
- James H. Herbort
- Department of Chemistry and Biochemistry, The Ohio State University, 100 West 18th Avenue, Columbus, Ohio 43210, United States
| | - Remy F. Lalisse
- Department of Chemistry and Biochemistry, The Ohio State University, 100 West 18th Avenue, Columbus, Ohio 43210, United States
| | - Christopher M. Hadad
- Department of Chemistry and Biochemistry, The Ohio State University, 100 West 18th Avenue, Columbus, Ohio 43210, United States
| | - T. V. RajanBabu
- Department of Chemistry and Biochemistry, The Ohio State University, 100 West 18th Avenue, Columbus, Ohio 43210, United States
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6
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Lin L, Dai C, Zhu J. Probing the origin of the stereoselectivity and enantioselectivity of cobalt-catalyzed [2 + 2] cyclization of ethylene and enynes. Org Chem Front 2021. [DOI: 10.1039/d0qo01412e] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Theoretical calculations reveal the origin of the stereoselectivity and enantioselectivity of cobalt-catalyzed [2 + 2] cyclization of ethylene and enynes.
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Affiliation(s)
- Lu Lin
- State Key Laboratory of Physical Chemistry of Solid Surfaces
- Fujian Provincial Key Laboratory of Theoretical and Computational Chemistry
- Department of Chemistry
- College of Chemistry and Chemical Engineering
- Xiamen University
| | - Chenshu Dai
- State Key Laboratory of Physical Chemistry of Solid Surfaces
- Fujian Provincial Key Laboratory of Theoretical and Computational Chemistry
- Department of Chemistry
- College of Chemistry and Chemical Engineering
- Xiamen University
| | - Jun Zhu
- State Key Laboratory of Physical Chemistry of Solid Surfaces
- Fujian Provincial Key Laboratory of Theoretical and Computational Chemistry
- Department of Chemistry
- College of Chemistry and Chemical Engineering
- Xiamen University
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7
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Gray M, Hines MT, Parsutkar MM, Wahlstrom AJ, Brunelli NA, RajanBabu TV. Mechanism of Cobalt-Catalyzed Heterodimerization of Acrylates and 1,3-Dienes. A Potential Role of Cationic Cobalt(I) Intermediates. ACS Catal 2020; 10:4337-4348. [PMID: 32457820 PMCID: PMC7250405 DOI: 10.1021/acscatal.9b05455] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Coupling reactions of feedstock alkenes are promising, but few of these reactions are practiced industrially. Even though recent advances in the synthetic methodology have led to excellent regio- and enantioselectivies in the dimerization reactions between 1,3-dienes and acrylates, the efficiency as measured by the turnover numbers (TON) in the catalyst has remained modest. Through a combination of reaction progress kinetic analysis (RPKA) of a prototypical dimerization reaction, characterization of isolated low-valent cobalt catalyst precursors involved, several important details of the mechanism of this reaction have emerged. (i) The prototypical reaction has an induction period that requires at least two hours of stir time to generate the competent catalyst. (ii) Reduction of a Co(II) complex to a Co(I) complex, and subsequent generation of a cationic [Co(I)]+ species are responsible for this delay. (iii) Through RPKA using in situ IR spectroscopy, same excess experiments reveal inhibition by the product towards the end of the reaction and no catalyst deactivation is observed as long as diene is present in the medium. The low TON observed is most likely the result of the inherent instability of the putative cationic Co(I)-species that catalyzes the reaction. (iv) Different excess experiments suggest that the reaction is first order in the diene and zero order in the acrylate. (v) Catalyst loading experiments show that the catalyst is first order. The orders in the various regents were further confirmed by Variable Time Normalization Analysis (VTNA). (vi) A mechanism based on oxidative dimerization [via Co(I)/Co(III)-cycle] is proposed. Based on the results of this study, it is possible to increase the TON by a factor of 10 by conducting the reaction at an increased concentration of the starting materials, especially, the diene, which seems to stabilize the catalytic species.
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Affiliation(s)
- Montgomery Gray
- 151 W. Woodruff, Columbus, OH 43210 and the Department of Chemistry and Biochemistry, 100 W. 18th Avenue, Columbus, Ohio 43210, United States
| | - Michael T Hines
- The Ohio State University, William G. Lowrie Department of Chemical and Biomolecular Engineering, 100 W. 18th Avenue, Columbus, Ohio 43210, United States
| | - Mahesh M Parsutkar
- 151 W. Woodruff, Columbus, OH 43210 and the Department of Chemistry and Biochemistry, 100 W. 18th Avenue, Columbus, Ohio 43210, United States
| | - A J Wahlstrom
- The Ohio State University, William G. Lowrie Department of Chemical and Biomolecular Engineering, 100 W. 18th Avenue, Columbus, Ohio 43210, United States
| | - Nicholas A Brunelli
- The Ohio State University, William G. Lowrie Department of Chemical and Biomolecular Engineering, 100 W. 18th Avenue, Columbus, Ohio 43210, United States
| | - T V RajanBabu
- 151 W. Woodruff, Columbus, OH 43210 and the Department of Chemistry and Biochemistry, 100 W. 18th Avenue, Columbus, Ohio 43210, United States
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Huang J, Ho C. [(NHC)Ni
II
H]‐Catalyzed Cross‐Hydroalkenylation of Cyclopropenes with Alkynes: Cyclopentadiene Synthesis by [(NHC)Ni
II
]‐Assisted C−C Rearrangement. Angew Chem Int Ed Engl 2019; 58:5702-5706. [DOI: 10.1002/anie.201901255] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2019] [Revised: 02/13/2019] [Indexed: 11/10/2022]
Affiliation(s)
- Jian‐Qiang Huang
- Shenzhen Grubbs InstituteDepartment of ChemistrySouthern University of Science and Technology (SUSTech) China
- Department of Chemistry and Molecular SciencesWuhan University China
| | - Chun‐Yu Ho
- Shenzhen Grubbs InstituteDepartment of ChemistrySouthern University of Science and Technology (SUSTech) China
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9
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Huang J, Ho C. [(NHC)Ni
II
H]‐Catalyzed Cross‐Hydroalkenylation of Cyclopropenes with Alkynes: Cyclopentadiene Synthesis by [(NHC)Ni
II
]‐Assisted C−C Rearrangement. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201901255] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Affiliation(s)
- Jian‐Qiang Huang
- Shenzhen Grubbs InstituteDepartment of ChemistrySouthern University of Science and Technology (SUSTech) China
- Department of Chemistry and Molecular SciencesWuhan University China
| | - Chun‐Yu Ho
- Shenzhen Grubbs InstituteDepartment of ChemistrySouthern University of Science and Technology (SUSTech) China
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10
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Schmidt VA, Kennedy CR, Bezdek MJ, Chirik PJ. Selective [1,4]-Hydrovinylation of 1,3-Dienes with Unactivated Olefins Enabled by Iron Diimine Catalysts. J Am Chem Soc 2018; 140:3443-3453. [PMID: 29414238 DOI: 10.1021/jacs.8b00245] [Citation(s) in RCA: 56] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The selective, intermolecular [1,4]-hydrovinylation of conjugated dienes with unactivated α-olefins catalyzed by α-diimine iron complexes is described. Value-added "skipped" diene products were obtained with exclusive [1,4]-selectivity, and the formation of branched, ( Z)-olefin products was observed with no evidence for alkene isomerization. Mechanistic studies conducted with the well-defined, single-component iron precatalyst (MesDI)Fe(COD) (MesDI = [2,4,6-Me3-C6H2-N═CMe]2); COD = 1,5-cyclooctadiene) provided insights into the origin of the high selectivity. An iron diene complex was identified as the catalyst resting state, and one such isoprene complex, (iPrDI)Fe(η4-C5H8), was isolated and characterized. A combination of single crystal X-ray diffraction, Mößbauer spectroscopy, magnetic measurements, and DFT calculations established that the complex is best described as a high-spin Fe(I) center ( SFe = 3/2) engaged in antiferromagnetic coupling to an α-diimine radical anion ( SDI = -1/2), giving rise to the observed S = 1 ground state. Deuterium-labeling experiments and kinetic analyses of the catalytic reaction provided support for a pathway involving oxidative cyclization of an alkene with the diene complex to generate an iron metallacycle. The observed selectivity can be understood in terms of competing steric interactions in the transition states for oxidative cyclization and subsequent β-hydrogen elimination.
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Affiliation(s)
- Valerie A Schmidt
- Department of Chemistry , Princeton University , Princeton , New Jersey 08544 , United States
| | - C Rose Kennedy
- Department of Chemistry , Princeton University , Princeton , New Jersey 08544 , United States
| | - Máté J Bezdek
- 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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11
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Wu H, Li X, Tang X, Huang G. Mechanism and origins of chemo- and regioselectivities of (NHC)NiH-catalyzed cross-hydroalkenylation of vinyl ethers with α-olefins: a computational study. Org Chem Front 2018. [DOI: 10.1039/c8qo01020j] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Density functional theory calculations were performed to investigate the (NHC)NiH-catalyzed cross-hydroalkenylation of vinyl ethers with α-olefins.
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Affiliation(s)
- Hongli Wu
- Department of Chemistry
- School of Science and Tianjin Key Laboratory of Molecular Optoelectronic Sciences
- Tianjin University
- Tianjin 300072
- P. R. China
| | - Xiaojie Li
- Department of Chemistry
- School of Science and Tianjin Key Laboratory of Molecular Optoelectronic Sciences
- Tianjin University
- Tianjin 300072
- P. R. China
| | - Xiangyang Tang
- Department of Chemistry
- School of Science and Tianjin Key Laboratory of Molecular Optoelectronic Sciences
- Tianjin University
- Tianjin 300072
- P. R. China
| | - Genping Huang
- Department of Chemistry
- School of Science and Tianjin Key Laboratory of Molecular Optoelectronic Sciences
- Tianjin University
- Tianjin 300072
- P. R. China
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12
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Xiao LJ, Cheng L, Feng WM, Li ML, Xie JH, Zhou QL. Nickel(0)-Catalyzed Hydroarylation of Styrenes and 1,3-Dienes with Organoboron Compounds. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201710735] [Citation(s) in RCA: 38] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Affiliation(s)
- Li-Jun Xiao
- State Key Laboratory and Institute of Elemento-organic Chemistry; College of Chemistry; Nankai University; Tianjin 300071 China
| | - Lei Cheng
- State Key Laboratory and Institute of Elemento-organic Chemistry; College of Chemistry; Nankai University; Tianjin 300071 China
| | - Wei-Min Feng
- State Key Laboratory and Institute of Elemento-organic Chemistry; College of Chemistry; Nankai University; Tianjin 300071 China
| | - Mao-Lin Li
- State Key Laboratory and Institute of Elemento-organic Chemistry; College of Chemistry; Nankai University; Tianjin 300071 China
| | - Jian-Hua Xie
- State Key Laboratory and Institute of Elemento-organic Chemistry; College of Chemistry; Nankai University; Tianjin 300071 China
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin); Tianjin 300071 China
| | - Qi-Lin Zhou
- State Key Laboratory and Institute of Elemento-organic Chemistry; College of Chemistry; Nankai University; Tianjin 300071 China
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin); Tianjin 300071 China
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13
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Xiao LJ, Cheng L, Feng WM, Li ML, Xie JH, Zhou QL. Nickel(0)-Catalyzed Hydroarylation of Styrenes and 1,3-Dienes with Organoboron Compounds. Angew Chem Int Ed Engl 2017; 57:461-464. [DOI: 10.1002/anie.201710735] [Citation(s) in RCA: 122] [Impact Index Per Article: 17.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2017] [Indexed: 12/11/2022]
Affiliation(s)
- Li-Jun Xiao
- State Key Laboratory and Institute of Elemento-organic Chemistry; College of Chemistry; Nankai University; Tianjin 300071 China
| | - Lei Cheng
- State Key Laboratory and Institute of Elemento-organic Chemistry; College of Chemistry; Nankai University; Tianjin 300071 China
| | - Wei-Min Feng
- State Key Laboratory and Institute of Elemento-organic Chemistry; College of Chemistry; Nankai University; Tianjin 300071 China
| | - Mao-Lin Li
- State Key Laboratory and Institute of Elemento-organic Chemistry; College of Chemistry; Nankai University; Tianjin 300071 China
| | - Jian-Hua Xie
- State Key Laboratory and Institute of Elemento-organic Chemistry; College of Chemistry; Nankai University; Tianjin 300071 China
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin); Tianjin 300071 China
| | - Qi-Lin Zhou
- State Key Laboratory and Institute of Elemento-organic Chemistry; College of Chemistry; Nankai University; Tianjin 300071 China
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin); Tianjin 300071 China
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14
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Lian X, Chen W, Dang L, Li Y, Ho CY. (NHC)NiH-Catalyzed Intermolecular Regio- and Diastereoselective Cross-Hydroalkenylation of Endocyclic Dienes with α-Olefins. Angew Chem Int Ed Engl 2017; 56:9048-9052. [DOI: 10.1002/anie.201703706] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2017] [Revised: 05/12/2017] [Indexed: 11/10/2022]
Affiliation(s)
- Xiaoyan Lian
- Department of Chemistry; Shenzhen Key Laboratory of Full Spectral Solar Electricity Generation (FSSEG); South University of Science and Technology of China (SUSTC); No. 1088, Xueyuan Road Shenzhen China
| | - Weihao Chen
- Department of Chemistry; Shenzhen Key Laboratory of Full Spectral Solar Electricity Generation (FSSEG); South University of Science and Technology of China (SUSTC); No. 1088, Xueyuan Road Shenzhen China
| | - Liang Dang
- Department of Chemistry; Shenzhen Key Laboratory of Full Spectral Solar Electricity Generation (FSSEG); South University of Science and Technology of China (SUSTC); No. 1088, Xueyuan Road Shenzhen China
| | - Yuchen Li
- Department of Chemistry; Shenzhen Key Laboratory of Full Spectral Solar Electricity Generation (FSSEG); South University of Science and Technology of China (SUSTC); No. 1088, Xueyuan Road Shenzhen China
| | - Chun-Yu Ho
- Department of Chemistry; Shenzhen Key Laboratory of Full Spectral Solar Electricity Generation (FSSEG); South University of Science and Technology of China (SUSTC); No. 1088, Xueyuan Road Shenzhen China
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15
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Lian X, Chen W, Dang L, Li Y, Ho CY. (NHC)NiH-Catalyzed Intermolecular Regio- and Diastereoselective Cross-Hydroalkenylation of Endocyclic Dienes with α-Olefins. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201703706] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Xiaoyan Lian
- Department of Chemistry; Shenzhen Key Laboratory of Full Spectral Solar Electricity Generation (FSSEG); South University of Science and Technology of China (SUSTC); No. 1088, Xueyuan Road Shenzhen China
| | - Weihao Chen
- Department of Chemistry; Shenzhen Key Laboratory of Full Spectral Solar Electricity Generation (FSSEG); South University of Science and Technology of China (SUSTC); No. 1088, Xueyuan Road Shenzhen China
| | - Liang Dang
- Department of Chemistry; Shenzhen Key Laboratory of Full Spectral Solar Electricity Generation (FSSEG); South University of Science and Technology of China (SUSTC); No. 1088, Xueyuan Road Shenzhen China
| | - Yuchen Li
- Department of Chemistry; Shenzhen Key Laboratory of Full Spectral Solar Electricity Generation (FSSEG); South University of Science and Technology of China (SUSTC); No. 1088, Xueyuan Road Shenzhen China
| | - Chun-Yu Ho
- Department of Chemistry; Shenzhen Key Laboratory of Full Spectral Solar Electricity Generation (FSSEG); South University of Science and Technology of China (SUSTC); No. 1088, Xueyuan Road Shenzhen China
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16
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O’Reilly ME, Dutta S, Veige AS. β-Alkyl Elimination: Fundamental Principles and Some Applications. Chem Rev 2016; 116:8105-45. [DOI: 10.1021/acs.chemrev.6b00054] [Citation(s) in RCA: 66] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Matthew E. O’Reilly
- Department of Chemistry,
Center for Catalysis, University of Florida, Gainesville, Florida 32611, United States
| | - Saikat Dutta
- Department of Chemistry,
Center for Catalysis, University of Florida, Gainesville, Florida 32611, United States
| | - Adam S. Veige
- Department of Chemistry,
Center for Catalysis, University of Florida, Gainesville, Florida 32611, United States
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17
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Hong X, Wang J, Yang YF, He L, Ho CY, Houk KN. Computational Exploration of Mechanism and Selectivities of (NHC)Nickel(II)hydride-Catalyzed Hydroalkenylations of Styrene with α-Olefins. ACS Catal 2015. [DOI: 10.1021/acscatal.5b01075] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Affiliation(s)
- Xin Hong
- Department
of Chemistry and Biochemistry, University of California, Los Angeles, California 90095, United States
| | - Jinglin Wang
- Department
of Chemistry, South University of Science and Technology of China (SUSTC), Shenzhen 518055, P.R. China
| | - Yun-Fang Yang
- Department
of Chemistry and Biochemistry, University of California, Los Angeles, California 90095, United States
| | - Lisi He
- Shenzhen
Research Institute, The Chinese University of Hong Kong, Shatin NT, Hong Kong, P.R. China
| | - Chun-Yu Ho
- Department
of Chemistry, South University of Science and Technology of China (SUSTC), Shenzhen 518055, P.R. China
- Shenzhen
Research Institute, The Chinese University of Hong Kong, Shatin NT, Hong Kong, P.R. China
| | - K. N. Houk
- Department
of Chemistry and Biochemistry, University of California, Los Angeles, California 90095, United States
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18
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Sperger T, Sanhueza IA, Kalvet I, Schoenebeck F. Computational Studies of Synthetically Relevant Homogeneous Organometallic Catalysis Involving Ni, Pd, Ir, and Rh: An Overview of Commonly Employed DFT Methods and Mechanistic Insights. Chem Rev 2015. [PMID: 26207572 DOI: 10.1021/acs.chemrev.5b00163] [Citation(s) in RCA: 410] [Impact Index Per Article: 45.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Affiliation(s)
- Theresa Sperger
- Institute of Organic Chemistry, RWTH Aachen University , Landoltweg 1, 52074 Aachen, Germany
| | - Italo A Sanhueza
- Institute of Organic Chemistry, RWTH Aachen University , Landoltweg 1, 52074 Aachen, Germany.,Laboratory of Organic Chemistry, ETH Zürich , Vladimir-Prelog-Weg 3, 8093 Zürich, Switzerland
| | - Indrek Kalvet
- Institute of Organic Chemistry, RWTH Aachen University , Landoltweg 1, 52074 Aachen, Germany
| | - Franziska Schoenebeck
- Institute of Organic Chemistry, RWTH Aachen University , Landoltweg 1, 52074 Aachen, Germany
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19
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Timsina YN, Sharma RK, RajanBabu TV. Cobalt-Catalysed Asymmetric Hydrovinylation of 1,3-Dienes. Chem Sci 2015; 6:3994-4008. [PMID: 26430505 PMCID: PMC4587399 DOI: 10.1039/c5sc00929d] [Citation(s) in RCA: 48] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2015] [Accepted: 04/22/2015] [Indexed: 02/06/2023] Open
Abstract
In the presence of bidentate 1,n-bis-diphenylphosphinoalkane-CoCl2 complexes {Cl2Co[P~P]} and Me3Al or methylaluminoxane, acyclic (E)-1,3-dienes react with ethylene (1 atmosphere) to give excellent yields of hydrovinylation products. The regioselectivity (1,4- or 1,2-addition) and the alkene configuration (E- or Z-) of the resulting product depend on the nature of the ligand and temperature at which the reaction is carried out. Cobalt(II)-complexes of 1,1-diphenylphosphinomethane and similar ligands with narrow bite angles give mostly 1,2-addition, retaining the E-geometry of the original diene. Complexes of most other ligands at low temperature (-40 °C) give almost exclusively a single branched product, (Z)-3-alkylhexa-1,4-diene, which arises from a 1,4-hydrovinylation reaction. A minor product is the linear adduct, a 5-alkyl-hexa-1,4-diene, also arising from a 1,4-addition of ethylene. As the temperature is increased, a higher proportion of the major 1,4-adduct appears as the (E)-isomer. The unexpectedly high selectivity seen in the Co-catalysed reaction as compared to the corresponding Ni-catalysed reaction can be rationalized by invoking the intermediacy of an η4-[(diene)[P~P]CoH]+-complex and its subsequent reactions. The enhanced reactivity of terminal E-1,3-dienes over the corresponding Z-dienes can also be explained on the basis of the ease of formation of this η4-complex in the former case. The lack of reactivity of the X2Co(dppb) (X = Cl, Br) complexes in the presence of Zn/ZnI2 makes the Me3Al-mediated reaction different from the previously reported hydroalkenylation of dienes. Electron-rich phospholanes, bis-oxazolines and N-heterocyclic carbenes appear to be poor ligands for the Co(II)-catalysed hydrovinylation of 1,3-dienes. An extensive survey of chiral ligands reveals that complexes of DIOP, BDDP and Josiphos ligands are quite effective for these reactions even at -45 °C and enantioselectivities in the range of 90-99 % ee can be realized for a variety of 1,3-dienes. Cobalt(II)-complex of an electron-deficient Josiphos ligand is especially active, requiring only <1 mol% catalyst to effect the reactions.
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Affiliation(s)
- Yam N. Timsina
- Department of Chemistry and Biochemistry , The Ohio State University , 100 West 18th Avenue , Columbus , Ohio 43210 , USA . ; Fax: +1 614 292 1685 ; Tel: +1 614 688 3543
| | - Rakesh K. Sharma
- Department of Chemistry and Biochemistry , The Ohio State University , 100 West 18th Avenue , Columbus , Ohio 43210 , USA . ; Fax: +1 614 292 1685 ; Tel: +1 614 688 3543
| | - T. V. RajanBabu
- Department of Chemistry and Biochemistry , The Ohio State University , 100 West 18th Avenue , Columbus , Ohio 43210 , USA . ; Fax: +1 614 292 1685 ; Tel: +1 614 688 3543
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20
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Ho CY, Chan CW, He L. Catalytic Asymmetric Hydroalkenylation of Vinylarenes: Electronic Effects of Substrates and Chiral N-Heterocyclic Carbene Ligands. Angew Chem Int Ed Engl 2015. [DOI: 10.1002/ange.201411882] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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21
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Ho CY, Chan CW, He L. Catalytic Asymmetric Hydroalkenylation of Vinylarenes: Electronic Effects of Substrates and Chiral N-Heterocyclic Carbene Ligands. Angew Chem Int Ed Engl 2015; 54:4512-6. [DOI: 10.1002/anie.201411882] [Citation(s) in RCA: 62] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2014] [Indexed: 11/06/2022]
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22
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Biswas S, Zhang A, Raya B, RajanBabu TV. Triarylphosphine Ligands with Hemilabile Alkoxy Groups. Ligands for Nickel(II)-Catalyzed Olefin Dimerization Reactions. Hydrovinylation of Vi-nylarenes, 1,3-Dienes, and Cycloisomerization of 1,6-Dienes. Adv Synth Catal 2014; 356:2281-2292. [PMID: 25395919 DOI: 10.1002/adsc.201400237] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
Substitution of one of the phenyl groups of triphenylphosphine with a 2-benzyloxy-, 2-benzyloxymethyl- or 2-benzyloxyethyl-phenyl moiety results in a set of simple ligands, which exhibit strikingly different behaviour in various nickel(II)-catalyzed olefin dimerization reactions. Complexes of ligands with 2-benzyloxyphenyl-, 2-benzyloxymethylphenyl-diphenylphosphine (L5 and L6 respectively) are most active for hydrovinylation (HV) of vinylarenes, with the former leading to extensive isomerization of the primary 3-aryl-1-butenes into the conjugated 2-aryl-2-butenes even at -55 °C. However, 2-benzyloxymethyl-substituted ligand L6 is slightly less active, leading up to quantitative yields of the primary products of HV at ambient temperature with no trace of isomerization, thus providing the best option for a practical synthesis of these compounds. In sharp contrast, hydrovinylation of a variety of 1,3-dienes is best catalyzed by nickel(II)-complexes of 2-benzyloxyphenyldiphenylphosphine, L5. The other two ligands, 2-benzyloxymethyl-(L6) and 2-benzyloxyethyl-diphenylphosphine (L7) are much less effective in the HV of 1,3-dienes. Nickel(II)-catalyzed cycloisomerization of 1,6-dienes into methylenecyclopentanes, a reaction mechanistically related to the other hydrovinylation reactions, is also uniquely effected by nickel(II)-complexes of L5, but not of L6 or L7. In an attempt to prepare authentic samples of the methylencyclohexane products, nickel(II)-complexes of N-heterocyclic carbene-ligands were examined. In sharp contrast to the phosphines, which give the methylenecyclopentanes, methylenecyclohexanes are the major products in the (N-heterocyclic carbene)nickel(II)-mediated reactions.
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Affiliation(s)
- Souvagya Biswas
- Department of Chemistry and Biochemistry, The Ohio State University, 100 West 18 Avenue, Columbus, OHIO 43210, USA ; phone: (001)-614-688-3543
| | - Aibin Zhang
- Department of Chemistry and Biochemistry, The Ohio State University, 100 West 18 Avenue, Columbus, OHIO 43210, USA ; phone: (001)-614-688-3543
| | - Balaram Raya
- Department of Chemistry and Biochemistry, The Ohio State University, 100 West 18 Avenue, Columbus, OHIO 43210, USA ; phone: (001)-614-688-3543
| | - T V RajanBabu
- Department of Chemistry and Biochemistry, The Ohio State University, 100 West 18 Avenue, Columbus, OHIO 43210, USA ; phone: (001)-614-688-3543
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23
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Ren Q, Guan S, Shen X, Fang J. Density Functional Theory Study of the Mechanisms of Iron-Catalyzed Aminohydroxylation Reactions. Organometallics 2014. [DOI: 10.1021/om401141r] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Affiliation(s)
- Qinghua Ren
- Department
of Chemistry, Shanghai University, 99 Shangda Road, Shanghai 200444, People’s Republic of China
| | - Shuhui Guan
- Department
of Chemistry, Shanghai University, 99 Shangda Road, Shanghai 200444, People’s Republic of China
| | - Xiaoyan Shen
- Department
of Chemistry, Shanghai University, 99 Shangda Road, Shanghai 200444, People’s Republic of China
| | - Jianhui Fang
- Department
of Chemistry, Shanghai University, 99 Shangda Road, Shanghai 200444, People’s Republic of China
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24
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Takaya J, Kirai N, Iwasawa N. Mechanistic Studies on the Stereoisomerization between Two Stereoisomeric, Isolable Five-Coordinate Borylpalladium(II) Complexes Bearing a Phenylene-Bridged PSiP-Pincer Type Ligand. Organometallics 2014. [DOI: 10.1021/om401004c] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Affiliation(s)
- Jun Takaya
- Department
of Chemistry, Tokyo Institute of Technology, O-okayama, Meguro-ku, Tokyo 152-8551, Japan
| | - Naohiro Kirai
- Department
of Chemistry, Tokyo Institute of Technology, O-okayama, Meguro-ku, Tokyo 152-8551, Japan
| | - Nobuharu Iwasawa
- Department
of Chemistry, Tokyo Institute of Technology, O-okayama, Meguro-ku, Tokyo 152-8551, Japan
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25
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Sun Y, Jiang H, Tang H, Xu H, Liu H, Sun K, Huang X. Theoretical investigation on the mechanism of FeCl3-catalysed cross-coupling reaction of alcohols with alkenes. Mol Phys 2014. [DOI: 10.1080/00268976.2014.886738] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
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26
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Carrilho RMB, Costa GN, Neves ÂCB, Pereira MM, Grabulosa A, Bayón JC, Rocamora M, Muller G. Asymmetric Hydrovinylation and Hydrogenation with Metal Complexes ofC3-Symmetric Tris-Binaphthyl Monophosphites. Eur J Inorg Chem 2014. [DOI: 10.1002/ejic.201301368] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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27
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Saini V, Stokes BJ, Sigman MS. Transition-metal-catalyzed laboratory-scale carbon-carbon bond-forming reactions of ethylene. Angew Chem Int Ed Engl 2013; 52:11206-20. [PMID: 24105881 PMCID: PMC3990188 DOI: 10.1002/anie.201303916] [Citation(s) in RCA: 84] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2013] [Indexed: 11/07/2022]
Abstract
Ethylene, the simplest alkene, is the most abundantly synthesized organic molecule by volume. It is readily incorporated into transition-metal-catalyzed carbon-carbon bond-forming reactions through migratory insertions into alkylmetal intermediates. Because of its D2h symmetry, only one insertion outcome is possible. This limits byproduct formation and greatly simplifies analysis. As described within this Minireview, many carbon-carbon bond-forming reactions incorporate a molecule (or more) of ethylene at ambient pressure and temperature. In many cases, a useful substituted alkene is incorporated into the product.
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Affiliation(s)
- Vaneet Saini
- Department of Chemistry, University of Utah, 315 South 1400 East, Room 2020, Salt Lake City, UT 84112 (USA)
| | - Benjamin J. Stokes
- Department of Chemistry, University of Utah, 315 South 1400 East, Room 2020, Salt Lake City, UT 84112 (USA)
| | - Matthew S. Sigman
- Department of Chemistry, University of Utah, 315 South 1400 East, Room 2020, Salt Lake City, UT 84112 (USA)
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Saini V, Stokes BJ, Sigman MS. Übergangsmetallkatalysierte C-C-Kupplungen mit Ethylen im Labormaßstab. Angew Chem Int Ed Engl 2013. [DOI: 10.1002/ange.201303916] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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29
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Ren Q, Guan S, Jiang F, Fang J. Density Functional Theory Study of the Mechanisms of Iron-Catalyzed Cross-Coupling Reactions of Alkyl Grignard Reagents. J Phys Chem A 2013; 117:756-64. [DOI: 10.1021/jp3045498] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Qinghua Ren
- Department
of Chemistry, Shanghai University, 99 Shangda
Road, Shanghai 200444, China
| | - Shuhui Guan
- Department
of Chemistry, Shanghai University, 99 Shangda
Road, Shanghai 200444, China
| | - Feng Jiang
- Department
of Chemistry, Shanghai University, 99 Shangda
Road, Shanghai 200444, China
| | - Jianhui Fang
- Department
of Chemistry, Shanghai University, 99 Shangda
Road, Shanghai 200444, China
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30
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31
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Pudasaini B, Janesko BG. Computational Mechanistic Study of Stereoselective Suzuki Coupling of an α-Cyano-Activated Secondary Alkyl. Organometallics 2012. [DOI: 10.1021/om300455g] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Affiliation(s)
- Bimal Pudasaini
- Department of Chemistry, Texas Christian University, Fort Worth,
Texas, United States
| | - Benjamin G. Janesko
- Department of Chemistry, Texas Christian University, Fort Worth,
Texas, United States
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32
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Hilt G. Hydrovinylation Reactions - Atom-Economic Transformations with Steadily Increasing Synthetic Potential. European J Org Chem 2012. [DOI: 10.1002/ejoc.201200212] [Citation(s) in RCA: 78] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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33
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Ho CY, He L. Shuffle off the classic β-Si elimination by Ni-NHC cooperation: implication for C-C forming reactions involving Ni-alkyl-β-silanes. Chem Commun (Camb) 2011; 48:1481-3. [PMID: 22116100 DOI: 10.1039/c1cc14593b] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Via a cooperation of NHC, Si substituents and a M center, β-Si elimination was attenuated, revealing a new way to attain a high Ni-β-SiR(3):Ni-σ-SiR(3) ratio. The scope is illustrated by a head-to-tail vinylsilane-α-olefin hydroalkenylation.
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Affiliation(s)
- Chun-Yu Ho
- Center of Novel Functional Molecules, Department of Chemistry, The Chinese University of Hong Kong.
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Abstract
This report describes a nickel-catalyzed allylic substitution process of simple alkenes whereby an important structural motif, a 1,4-diene, was prepared. The key to success is the use of an appropriate nickel-phosphine complex and a stoichiometric amount of silyl triflate. Reactions of 1-alkyl-substituted alkenes consistently provided 1,1-disubstituted alkenes with high selectivity. Insight into the reaction mechanism as well as miscellaneous application of the developed catalytic process is also documented.
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35
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Grabulosa A, Mannu A, Muller G, Calvet T, Font-Bardia M. P-Stereogenic monophosphines in Pd-catalysed enantioselective hydrovinylation of styrene. J Organomet Chem 2011. [DOI: 10.1016/j.jorganchem.2011.02.034] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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36
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Jiang G, List B. Enantioselective hydrovinylation via asymmetric counteranion-directed ruthenium catalysis. Chem Commun (Camb) 2011; 47:10022-4. [DOI: 10.1039/c1cc12499d] [Citation(s) in RCA: 52] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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37
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Ayora I, Ceder RM, Espinel M, Muller G, Rocamora M, Serrano M. Modular Approach to New Chiral Monodentate Diamidophosphite Ligands. Application in Palladium-Catalyzed Asymmetric Hydrovinylation of Styrene. Organometallics 2010. [DOI: 10.1021/om100946a] [Citation(s) in RCA: 39] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Isabel Ayora
- Departament de Química Inorgànica, Universitat de Barcelona, Martí i Franquès 1-11, E-08028 Barcelona, Spain
| | - Rosa M. Ceder
- Departament de Química Inorgànica, Universitat de Barcelona, Martí i Franquès 1-11, E-08028 Barcelona, Spain
| | - Mauricio Espinel
- Departament de Química Inorgànica, Universitat de Barcelona, Martí i Franquès 1-11, E-08028 Barcelona, Spain
| | - Guillermo Muller
- Departament de Química Inorgànica, Universitat de Barcelona, Martí i Franquès 1-11, E-08028 Barcelona, Spain
| | - Mercè Rocamora
- Departament de Química Inorgànica, Universitat de Barcelona, Martí i Franquès 1-11, E-08028 Barcelona, Spain
| | - Marta Serrano
- Departament de Química Inorgànica, Universitat de Barcelona, Martí i Franquès 1-11, E-08028 Barcelona, Spain
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Abstract
Nickel-catalyzed intermolecular allylic substitution of simple alkenes (ethylene and alpha olefins) is described. This method is the first catalytic intermolecular process for direct allylation of nonconjugated, nonstrained simple alkenes. Catalyst loadings as low as 2.5 mol % Ni afford the desired product in high yield in both gram-scale and smaller scale coupling reactions.
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Affiliation(s)
- Ryosuke Matsubara
- Department of Chemistry, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139
| | - Timothy F. Jamison
- Department of Chemistry, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139
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Abstract
Monosubstituted acyclic (E)-1,3-dienes undergo efficient hydrovinylation giving (Z)-3-alkylhexa-1,4-dienes upon treatment with catalytic amounts of bidentate phosphine-CoCl(2) complexes {[P~P](CoCl(2))} and Me(3)Al in an atmosphere of ethylene. The regioselectivity of the reaction (i.e., 1,4- or 1,2-addition) depends on the nature of the ligand and temperature at which the reaction is carried out. Complexes derived from (RR)-DIOP and (SS)-BDDP at -45 degrees C give very high enantioselectivities for several prototypical 1,3-dienes. In sharp contrast to the corresponding Ni(II)-catalyzed hydrovinylation, 1-aryl-substituted 1,3-dienes give almost exclusively achiral linear 1,4-addition products, unless the 2-position is also substituted. Solid-state structures of the precatalysts are presented.
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Affiliation(s)
- Rakesh K. Sharma
- Department of Chemistry, The Ohio State University, 100 W. 18 Avenue, Columbus, OH 43210, USA
| | - T. V. RajanBabu
- Department of Chemistry, The Ohio State University, 100 W. 18 Avenue, Columbus, OH 43210, USA
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40
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Chass GA, Kantchev EAB, Fang DC. The fine balance between one cross-coupling and two β-hydride elimination pathways: a DFT mechanistic study of Ni(π-allyl)2-catalyzed cross-coupling of alkyl halides and alkyl Grignard reagents. Chem Commun (Camb) 2010; 46:2727-9. [DOI: 10.1039/b922326f] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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41
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Roy D, Sunoj RB. Ni-, Pd-, or Pt-catalyzed ethylene dimerization: a mechanistic description of the catalytic cycle and the active species. Org Biomol Chem 2010; 8:1040-51. [DOI: 10.1039/b921492e] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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42
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Lassauque N, Franciò G, Leitner W. Room Temperature Highly Enantioselective Nickel-Catalyzed Hydrovinylation. Adv Synth Catal 2009. [DOI: 10.1002/adsc.200900559] [Citation(s) in RCA: 49] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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Barta K, Eggenstein M, Hölscher M, Franciò G, Leitner W. 1,1â²-Binaphthyl-2,2â²-diamine-Based Chiral Phosphorous Triamides: Synthesis and Application in Asymmetric Catalysis. European J Org Chem 2009. [DOI: 10.1002/ejoc.200900918] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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