1
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Tang T, Hazra A, Min DS, Williams WL, Jones E, Doyle AG, Sigman MS. Interrogating the Mechanistic Features of Ni(I)-Mediated Aryl Iodide Oxidative Addition Using Electroanalytical and Statistical Modeling Techniques. J Am Chem Soc 2023:10.1021/jacs.3c01726. [PMID: 37014945 PMCID: PMC10548350 DOI: 10.1021/jacs.3c01726] [Citation(s) in RCA: 12] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/06/2023]
Abstract
While the oxidative addition of Ni(I) to aryl iodides has been commonly proposed in catalytic methods, an in-depth mechanistic understanding of this fundamental process is still lacking. Herein, we describe a detailed mechanistic study of the oxidative addition process using electroanalytical and statistical modeling techniques. Electroanalytical techniques allowed rapid measurement of the oxidative addition rates for a diverse set of aryl iodide substrates and four classes of catalytically relevant complexes (Ni(MeBPy), Ni(MePhen), Ni(Terpy), and Ni(BPP)). With >200 experimental rate measurements, we were able to identify essential electronic and steric factors impacting the rate of oxidative addition through multivariate linear regression models. This has led to a classification of oxidative addition mechanisms, either through a three-center concerted or halogen-atom abstraction pathway based on the ligand type. A global heat map of predicted oxidative addition rates was created and shown applicable to a better understanding of the reaction outcome in a case study of a Ni-catalyzed coupling reaction.
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Affiliation(s)
- Tianhua Tang
- Department of Chemistry, University of Utah, 315 South 1400 East, Salt Lake City, Utah 84112, United States
| | - Avijit Hazra
- Department of Chemistry, University of Utah, 315 South 1400 East, Salt Lake City, Utah 84112, United States
| | - Daniel S. Min
- Department of Chemistry and Biochemistry, University of California, Los Angeles, California 90095, United States
| | - Wendy L. Williams
- Department of Chemistry and Biochemistry, University of California, Los Angeles, California 90095, United States
- Department of Chemistry, Princeton University, Princeton, New Jersey 08544, United States
| | - Eli Jones
- Department of Chemistry, University of Utah, 315 South 1400 East, Salt Lake City, Utah 84112, United States
| | - Abigail G. Doyle
- Department of Chemistry and Biochemistry, University of California, Los Angeles, California 90095, United States
| | - Matthew S. Sigman
- Department of Chemistry, University of Utah, 315 South 1400 East, Salt Lake City, Utah 84112, United States
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2
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Gonzalez A, Chen TY, Demeshko S, Meyer F, Werncke CG. Synthesis, Properties, and Reactivity of a Linear NHC-Based Chromium(I) Silylamide. Organometallics 2023. [DOI: 10.1021/acs.organomet.3c00013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/31/2023]
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3
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Chiu W, Nadeau BE, Patrick BO, Love JA. Investigating the mechanism of Ni-mediated trifluoromethylthiolation of aryl halides using AgSCF 3. Dalton Trans 2023; 52:3738-3745. [PMID: 36857666 DOI: 10.1039/d2dt03758k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
The mechanism of the Ni-catalysed trifluoromethylthiolation of aryl chlorides using AgSCF3 is studied herein. A variety of IPr NiII complexes were synthesized via oxidative addition of Ni0 to 2-(2-chloro)phenylpyridines. Their reactivity with AgSCF3 was tested by performing stoichiometric experiments, cyclic voltammetry, and NMR spectroscopic studies. CuSCF3 was shown to behave similarly to AgSCF3, while reactions with NMe4SCF3 revealed a major stoichiometric side reaction that forms a nickel fluoride complex. NMR kinetic studies revealed there is little correlation between the electron-withdrawing/donating nature of the para substituents on either the phenyl or pyridyl groups with the formation of the corresponding products. Cyclic voltammetry (CV) indicated the feasibilty of NiI/NiIII transitions, and an increased rate of formation of product was observed with increased solvent polarity. Evidence suggests that the mechanism proceeds via inner-sphere electron transfer (ET) from AgSCF3 to NiII, ultimately leading to the formation of the trifluoromethylthiolated product.
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Affiliation(s)
- Weiling Chiu
- Department of Chemistry, The University of British Columbia, Vancouver, BC, V6T 1Z1, Canada.
| | - Ben E Nadeau
- Department of Chemistry, The University of British Columbia, Vancouver, BC, V6T 1Z1, Canada.
| | - Brian O Patrick
- Department of Chemistry, The University of British Columbia, Vancouver, BC, V6T 1Z1, Canada.
| | - Jennifer A Love
- Department of Chemistry, The University of British Columbia, Vancouver, BC, V6T 1Z1, Canada.
- Department of Chemistry, University of Calgary, Calgary, AB, T2N 1N4, Canada
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4
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Noor A. Recent developments in two coordinate transition metal chemistry. Coord Chem Rev 2023. [DOI: 10.1016/j.ccr.2022.214941] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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5
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Huerfano IJ, Laskowski CA, Pink M, Carta V, Hillhouse GL, Caulton KG, Smith JM. Redox-Neutral Transformations of Carbon Dioxide Using Coordinatively Unsaturated Late Metal Silyl Amide Complexes. Inorg Chem 2022; 61:20986-20993. [PMID: 36516978 DOI: 10.1021/acs.inorgchem.2c03453] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Two-coordinate silylamido complexes of nickel and copper rapidly react with CO2 to selectively form a new cyanate ligand along with hexamethyldisiloxane byproducts. Mechanistic insight into these reactions was obtained from the synthesis of proposed intermediates, several silyl- and phenyl- substituted amido analogues, and their subsequent reactivity with CO2. These studies suggest that a unique intramolecular double silyl transfer step facilitates CO2 deoxygenation, which likely contributes to the rapid rates of reaction. The deoxygenation reactions create a platform for a synthetic cycle in which copper amido complexes convert CO2 to organic silylcarbamates.
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Affiliation(s)
- I J Huerfano
- Department of Chemistry, Indiana University, Bloomington, Indiana 47405, United States
| | - Carl A Laskowski
- Department of Chemistry, University of Chicago, Chicago, Illinois 60637, United States
| | - Maren Pink
- Department of Chemistry, Indiana University, Bloomington, Indiana 47405, United States
| | - Veronica Carta
- Department of Chemistry, Indiana University, Bloomington, Indiana 47405, United States
| | - Gregory L Hillhouse
- Department of Chemistry, University of Chicago, Chicago, Illinois 60637, United States
| | - Kenneth G Caulton
- Department of Chemistry, Indiana University, Bloomington, Indiana 47405, United States
| | - Jeremy M Smith
- Department of Chemistry, Indiana University, Bloomington, Indiana 47405, United States
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6
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Li S, Huang X, Gao Y, Jin J. Oxalamide/Amide Ligands: Enhanced and Copper-Catalyzed C-N Cross-Coupling for Triarylamine Synthesis. Org Lett 2022; 24:5817-5824. [PMID: 35899986 DOI: 10.1021/acs.orglett.2c02364] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Triarylamines are privileged core structures that are found in versatile optoelectronic materials. New methods are constantly being sought for their preparation. Herein, a new protocol for triarylamine synthesis is presented where a wide range of diarylamines couple smoothly with aryl bromides mediated by a copper oxalamide (or amide) catalytic system. Notably, a new non-C2-symmetric 1-isoquinolinamide-based N,N-/N,O-bidentate ligand was introduced that could tolerate bulky diarylamines. Plenty of known optoelectronic functional molecules could be synthesized in good to excellent yields. The practicality of this C-N cross-coupling was illustrated by the gram-scale synthesis of a patented thermally activated delayed fluorescence emitter for organic light-emitting diodes.
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Affiliation(s)
- Sasa Li
- CAS Key Laboratory of Synthetic Chemistry of Natural Substances, 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
| | - Xia Huang
- College of Chemistry and Materials Science, Shanghai Normal University, 100 Guilin Road, Shanghai 200234, China
| | - Yunlong Gao
- College of Chemistry and Materials Science, Shanghai Normal University, 100 Guilin Road, Shanghai 200234, China
| | - Jian Jin
- CAS Key Laboratory of Synthetic Chemistry of Natural Substances, 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
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7
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Somerville RJ, Borys AM, Perez-Jimenez M, Nova A, Balcells D, Malaspina LA, Grabowsky S, Carmona E, Hevia E, Campos J. Unmasking the constitution and bonding of the proposed lithium nickelate "Li 3NiPh 3(solv) 3": revealing the hidden C 6H 4 ligand. Chem Sci 2022; 13:5268-5276. [PMID: 35655554 PMCID: PMC9093164 DOI: 10.1039/d2sc01244h] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2022] [Accepted: 04/08/2022] [Indexed: 11/21/2022] Open
Abstract
More than four decades ago, a complex identified as the planar homoleptic lithium nickelate “Li3NiPh3(solv)3” was reported by Taube and co-workers. This and subsequent reports involving this complex have lain dormant since; however, the absence of an X-ray diffraction structure leaves questions as to the nature of the Ni–PhLi bonding and the coordination geometry at Ni. By systematically evaluating the reactivity of Ni(COD)2 with PhLi under different conditions, we have found that this classical molecule is instead a unique octanuclear complex, [{Li3(solv)2Ph3Ni}2(μ-η2:η2-C6H4)] (5). This is supported by X-ray crystallography and solution-state NMR studies. A theoretical bonding analysis from NBO, QTAIM, and ELI perspectives reveals extreme back-bonding to the bridging C6H4 ligand resulting in dimetallabicyclobutane character, the lack of a Ni–Ni bond, and pronounced σ-bonding between the phenyl carbanions and nickel, including a weak σC–Li → sNi interaction with the C–Li bond acting as a σ-donor. Employing PhNa led to the isolation of [Na2(solv)3Ph2NiCOD]2 (7) and [Na2(solv)3Ph2(NaC8H11)Ni(COD)]2 (8), which lack the benzyne-derived ligand. These findings provide new insights into the synthesis, structure, bonding and reactivity of heterobimetallic nickelates, whose prevalence in organonickel chemistry and catalysis is likely greater than previously believed. We disclose the actual octanuclear nature of the major compound from reacting Ni(COD)2 and PhLi, assigned for more than four decades as ‘Li3NiPh3(solv)3’. We provide a thorough bonding analysis and discuss its potential implications in catalysis.![]()
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Affiliation(s)
- Rosie J Somerville
- Instituto de Investigaciones Químicas (IIQ), Departamento de Química Inorgánica, Centro de Innovación en Química Avanzada (ORFEO-CINQA), Consejo Superior de Investigaciones Científicas (CSIC), University of Sevilla Avenida Américo Vespucio 49 41092 Sevilla Spain
| | - Andryj M Borys
- Departement für Chemie, Biochemie und Pharmazie, Universität Bern Freiestrasse 3 3012 Bern Switzerland
| | - Marina Perez-Jimenez
- Instituto de Investigaciones Químicas (IIQ), Departamento de Química Inorgánica, Centro de Innovación en Química Avanzada (ORFEO-CINQA), Consejo Superior de Investigaciones Científicas (CSIC), University of Sevilla Avenida Américo Vespucio 49 41092 Sevilla Spain
| | - Ainara Nova
- Hylleraas Centre for Quantum Molecular Sciences, Centre for Materials Science and Nanotechnology, Department of Chemistry, University of Oslo P.O. Box 1033, Blindern 0315 Oslo Norway
| | - David Balcells
- Hylleraas Centre for Quantum Molecular Sciences, Centre for Materials Science and Nanotechnology, Department of Chemistry, University of Oslo P.O. Box 1033, Blindern 0315 Oslo Norway
| | - Lorraine A Malaspina
- Departement für Chemie, Biochemie und Pharmazie, Universität Bern Freiestrasse 3 3012 Bern Switzerland
| | - Simon Grabowsky
- Departement für Chemie, Biochemie und Pharmazie, Universität Bern Freiestrasse 3 3012 Bern Switzerland
| | - Ernesto Carmona
- Instituto de Investigaciones Químicas (IIQ), Departamento de Química Inorgánica, Centro de Innovación en Química Avanzada (ORFEO-CINQA), Consejo Superior de Investigaciones Científicas (CSIC), University of Sevilla Avenida Américo Vespucio 49 41092 Sevilla Spain
| | - Eva Hevia
- Departement für Chemie, Biochemie und Pharmazie, Universität Bern Freiestrasse 3 3012 Bern Switzerland
| | - Jesús Campos
- Instituto de Investigaciones Químicas (IIQ), Departamento de Química Inorgánica, Centro de Innovación en Química Avanzada (ORFEO-CINQA), Consejo Superior de Investigaciones Científicas (CSIC), University of Sevilla Avenida Américo Vespucio 49 41092 Sevilla Spain
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8
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Borys AM, Hevia E. Mechanisms of the Nickel-Catalysed Hydrogenolysis and Cross-Coupling of Aryl Ethers. SYNTHESIS-STUTTGART 2022. [DOI: 10.1055/a-1806-4513] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
AbstractThe Ni-catalysed hydrogenolysis and cross-coupling of aryl ethers has emerged as a powerful synthetic tool to transform inert phenol-derived electrophiles into functionalised aromatic molecules. This has attracted significant interest due to its potential to convert the lignin fraction of biomass into chemical feedstocks, or to enable orthogonal reactivity and late-stage synthetic modification. Although the scope of nucleophiles employed, and hence the C–C and C–heteroatom bonds that can be forged, has expanded significantly since Wenkert’s seminal work in 1979, mechanistic understanding on how these reactions operate is still uncertain since the comparatively inert Caryl–O bond of aryl ethers challenge the involvement of classical mechanisms involving direct oxidative addition to Ni(0). In this review, we document the different mechanisms that have been proposed in the Ni-catalysed hydrogenolysis and cross-coupling of aryl ethers. These include: (i) direct oxidative addition; (ii) Lewis acid assisted C–O bond cleavage; (iii) anionic nickelates, and; (iv) Ni(I) intermediates. Experimental and theoretical investigations by numerous research groups have generated a pool of knowledge that will undoubtedly facilitate future discoveries in the development of novel Ni-catalysed transformations of aryl ethers.1 Introduction2 Direct Oxidative Addition3 Hydrogenolysis of Aryl Ethers4 Lewis Acid Assisted C–O Bond Cleavage5 Anionic Nickelates6 Ni(I) Intermediates7 The ‘Naphthalene Problem’8 Conclusions and Outlook
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9
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Ting SI, Williams WL, Doyle AG. Oxidative Addition of Aryl Halides to a Ni(I)-Bipyridine Complex. J Am Chem Soc 2022; 144:5575-5582. [PMID: 35298885 DOI: 10.1021/jacs.2c00462] [Citation(s) in RCA: 34] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
The oxidative addition of aryl halides to bipyridine- or phenanthroline-ligated nickel(I) is a commonly proposed step in nickel catalysis. However, there is a scarcity of complexes of this type that both are well-defined and undergo oxidative addition with aryl halides, hampering organometallic studies of this process. We report the synthesis of a well-defined Ni(I) complex, [(CO2Etbpy)NiICl]4 (1). Its solution-phase speciation is characterized by a significant population of monomer and a redox equilibrium that can be perturbed by π-acceptors and σ-donors. 1 reacts readily with aryl bromides, and mechanistic studies are consistent with a pathway proceeding through an initial Ni(I) → Ni(III) oxidative addition to form a Ni(III) aryl species. Such a process was demonstrated stoichiometrically for the first time, affording a structurally characterized Ni(III) aryl complex.
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Affiliation(s)
- Stephen I Ting
- Department of Chemistry, Princeton University, Princeton, New Jersey 08544, United States.,Department of Chemistry and Biochemistry, University of California, Los Angeles, California 90095, United States
| | - Wendy L Williams
- Department of Chemistry, Princeton University, Princeton, New Jersey 08544, United States.,Department of Chemistry and Biochemistry, University of California, Los Angeles, California 90095, United States
| | - Abigail G Doyle
- Department of Chemistry, Princeton University, Princeton, New Jersey 08544, United States.,Department of Chemistry and Biochemistry, University of California, Los Angeles, California 90095, United States
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10
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Padmanaban S, Choi J, Vazquez-Lima H, Ko D, Yoo D, Gwak J, Cho KB, Lee Y. Nickel-Catalyzed NO Group Transfer Coupled with NO x Conversion. J Am Chem Soc 2022; 144:4585-4593. [PMID: 35157442 DOI: 10.1021/jacs.1c13560] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Nitrogen oxide (NOx) conversion is an important process for balancing the global nitrogen cycle. Distinct from the biological NOx transformation, we have devised a synthetic approach to this issue by utilizing a bifunctional metal catalyst for producing value-added products from NOx. Here, we present a novel catalysis based on a Ni pincer system, effectively converting Ni-NOx to Ni-NO via deoxygenation with CO(g). This is followed by transfer of the in situ generated nitroso group to organic substrates, which favorably occurs at the flattened Ni(I)-NO site via its nucleophilic reaction. Successful catalytic production of oximes from benzyl halides using NaNO2 is presented with a turnover number of >200 under mild conditions. In a key step of the catalysis, a nickel(I)-•NO species effectively activates alkyl halides, which is carefully evaluated by both experimental and theoretical methods. Our nickel catalyst effectively fulfills a dual purpose, namely, deoxygenating NOx anions and catalyzing C-N coupling.
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Affiliation(s)
- Sudakar Padmanaban
- Department of Chemistry, Seoul National University, Seoul 08826, Republic of Korea
| | - Jonghoon Choi
- Department of Chemistry, Seoul National University, Seoul 08826, Republic of Korea
| | - Hugo Vazquez-Lima
- Department of Chemistry, Jeonbuk National University, Jeonju 54896, Republic of Korea
| | - Donghwi Ko
- Department of Chemistry, Korea Advanced Institute of Science and Technology, Daejeon 34141, Republic of Korea
| | - Dagyum Yoo
- Department of Chemistry, Seoul National University, Seoul 08826, Republic of Korea
| | - Jinseong Gwak
- Department of Chemistry, Seoul National University, Seoul 08826, Republic of Korea
| | - Kyung-Bin Cho
- Department of Chemistry, Jeonbuk National University, Jeonju 54896, Republic of Korea
| | - Yunho Lee
- Department of Chemistry, Seoul National University, Seoul 08826, Republic of Korea
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11
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Deciphering the mechanism of the Ni-photocatalyzed C‒O cross-coupling reaction using a tridentate pyridinophane ligand. Nat Commun 2022; 13:1313. [PMID: 35288558 PMCID: PMC8921334 DOI: 10.1038/s41467-022-28948-8] [Citation(s) in RCA: 24] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2021] [Accepted: 02/10/2022] [Indexed: 01/23/2023] Open
Abstract
Photoredox nickel catalysis has emerged as a powerful strategy for cross-coupling reactions. Although the involvement of paramagnetic Ni(I)/Ni(III) species as active intermediates in the catalytic cycle has been proposed, a thorough spectroscopic investigation of these species is lacking. Herein, we report the tridentate pyridinophane ligands RN3 that allow for detailed mechanistic studies of the photocatalytic C–O coupling reaction. The derived (RN3)Ni complexes are active catalysts under mild conditions and without an additional photocatalyst. We also provide direct evidence for the key steps involving paramagnetic Ni species in the proposed catalytic cycle: the oxidative addition of an aryl halide to a Ni(I) species, the ligand exchange/transmetalation at a Ni(III) center, and the C–O reductive elimination from a Ni(III) species. Overall, the present work suggests the RN3 ligands are a practical platform for mechanistic studies of Ni-catalyzed reactions and for the development of new catalytic applications. Mechanistic knowledge of photocatalytic nickel reactions is lacking, particularly with regards to the identities and oxidation states of key intermediates. Here the authors report a class of tridentate ligands that enables in-depth study of a representative cross-coupling reaction, wherein evidence for multiple intermediates in a Ni(I/III) cycle is presented.
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12
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Hu K, Gao Y, Jin J. Nickel-Catalyzed N-Arylation of Diarylamines for Triarylamine Synthesis. Organometallics 2022. [DOI: 10.1021/acs.organomet.2c00025] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Kunjun Hu
- College of Chemistry and Materials Sciences, Shanghai Normal University, 100 Guilin Road, Shanghai 200234, China
- CAS Key Laboratory of Synthetic Chemistry of Natural Substances, 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
| | - Yunlong Gao
- College of Chemistry and Materials Sciences, Shanghai Normal University, 100 Guilin Road, Shanghai 200234, China
- CAS Key Laboratory of Synthetic Chemistry of Natural Substances, 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
| | - Jian Jin
- CAS Key Laboratory of Synthetic Chemistry of Natural Substances, 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
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13
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Matsubara K, Tomomatsu K, Tajiri A, Watanabe A, Koga Y, Ishikawa R, Yamada Y. Pincer‐type Mesoionic Carbene Nickel(II) Complexes: Synthesis, Properties, Reactions, and Catalytic Application to the Suzuki–Miyaura Coupling Reaction of Aryl Bromides. Eur J Inorg Chem 2022. [DOI: 10.1002/ejic.202100870] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Kouki Matsubara
- Fukuoka University Department of Chemistry 8-19-1 NanakumaJonan-Ku 814-0180 Fukuoka JAPAN
| | | | - Ayame Tajiri
- Fukuoka University: Fukuoka Daigaku Chemistry JAPAN
| | | | - Yuji Koga
- Fukuoka University: Fukuoka Daigaku Chemistry JAPAN
| | | | - Yuji Yamada
- Fukuoka University: Fukuoka Daigaku Chemistry JAPAN
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14
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Humphrey ELBJ, Kennedy AR, Sproules S, Nelson DJ. Evaluating a Dispersion of Sodium in Sodium Chloride for the Synthesis of Low‐Valent Nickel Complexes. Eur J Inorg Chem 2021. [DOI: 10.1002/ejic.202101006] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
| | - Alan R. Kennedy
- University of Strathclyde Pure and Applied Chemistry UNITED KINGDOM
| | | | - David James Nelson
- University of Strathclyde Department of Pure and Applied Chemistry 295 Cathedral Street G1 1XL Glasgow UNITED KINGDOM
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15
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Duan X, Song Y, Fu C, Ma S. Pd/Gorlos‐Phos‐Catalyzed Chemoselective Amination of Bromophenyl Chlorides with Primary Arylamines. Helv Chim Acta 2021. [DOI: 10.1002/hlca.202100173] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Xinyu Duan
- Laboratory of Molecular Recognition and Synthesis Department of Chemistry Zhejiang University Hangzhou 310027, Zhejiang Province P. R. China
| | - Yulong Song
- Laboratory of Molecular Recognition and Synthesis Department of Chemistry Zhejiang University Hangzhou 310027, Zhejiang Province P. R. China
| | - Chunling Fu
- Laboratory of Molecular Recognition and Synthesis Department of Chemistry Zhejiang University Hangzhou 310027, Zhejiang Province P. R. China
| | - Shengming Ma
- Laboratory of Molecular Recognition and Synthesis Department of Chemistry Zhejiang University Hangzhou 310027, Zhejiang Province P. R. China
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16
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Affiliation(s)
- Alessandro Bismuto
- Laboratorium für Organische Chemie ETH Zürich Vladimir-Prelog-Weg 3, HCI CH-8093 Zürich Switzerland
| | - Patrick Finkelstein
- Laboratorium für Organische Chemie ETH Zürich Vladimir-Prelog-Weg 3, HCI CH-8093 Zürich Switzerland
| | - Patrick Müller
- Laboratorium für Organische Chemie ETH Zürich Vladimir-Prelog-Weg 3, HCI CH-8093 Zürich Switzerland
| | - Bill Morandi
- Laboratorium für Organische Chemie ETH Zürich Vladimir-Prelog-Weg 3, HCI CH-8093 Zürich Switzerland
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17
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Matsubara K. Well-Defined NHC-Ni Complexes as Catalysts: Preparation, Structures and Mechanistic Studies in Cross-Coupling Reactions. CHEM REC 2021; 21:3925-3942. [PMID: 34596959 DOI: 10.1002/tcr.202100204] [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: 07/30/2021] [Revised: 09/12/2021] [Indexed: 02/06/2023]
Abstract
Developmental studies are ongoing to discover a way to utilise new N-heterocyclic carbene (NHC)-Ni complexes as catalysts. Using a bulky NHC ligand, it is possible to synthesise an NHC/phosphine-mixed heteroleptic Ni(II) complex, which can serve as an excellent catalyst for various cross-coupling reactions. During the study of the reaction mechanisms using these Ni complexes, NHC-Ni(I) complexes were accidentally discovered, and it was observed that they exhibit excellent catalytic activity for cross-coupling reactions. The possibility of the presence of NHC-Ni(I) intermediates in these catalytic reaction pathways has been experimentally demonstrated. Depending on the type of reaction, dinuclear Ni(I) and mononuclear Ni(I) complexes can function as intermediates. The results of the investigation of each reaction mechanism are summarised, and the prospects are described.
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Affiliation(s)
- Kouki Matsubara
- Department of Chemistry, Fukuoka University, 8-19-1 Nanakuma, Fukuoka, 814-0180, Japan
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18
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Copper Immobilization on Fe3O4@Agar: An Efficient Superparamagnetic Nanocatalyst for Green Ullmann-Type Cross-Coupling Reaction of Primary and Secondary Amines with Aryl Iodide Derivatives. J Inorg Organomet Polym Mater 2021. [DOI: 10.1007/s10904-021-02106-x] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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19
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Mirza‐Aghayan M, Saeedi M, Boukherroub R. Carbon–nitrogen bond formation using modified graphene oxide derivatives decorated with copper complexes and nanoparticles. Appl Organomet Chem 2021. [DOI: 10.1002/aoc.6327] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
| | - Mandana Saeedi
- Chemistry and Chemical Engineering Research Center of Iran (CCERCI) Tehran Iran
| | - Rabah Boukherroub
- Institute of Electronics, Microelectronics and Nanotechnology (IEMN), UMR8520 Univ. Lille, CNRS, Centrale Lille, Univ. Polytechnique Hauts‐de‐France Lille France
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20
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Bismuto A, Müller P, Finkelstein P, Trapp N, Jeschke G, Morandi B. One to Find Them All: A General Route to Ni(I)-Phenolate Species. J Am Chem Soc 2021; 143:10642-10648. [PMID: 34251813 DOI: 10.1021/jacs.1c03763] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The past 20 years have seen an extensive implementation of nickel in homogeneous catalysis through the development of unique reactivity not easily achievable by using noble transition metals. Many catalytic cycles propose Ni(I) complexes as potential reactive intermediates, yet the scarcity of nickel(I) precursors and the lack of a general, non-ligand-specific protocol for their synthesis have hampered progress in this field of research. This has in turn also limited the access to novel, well-defined Ni(I) species for the development of new catalytic reactions. Herein, we report a simple, general route to access a wide variety of Ni(I)-phenolate complexes via an unusual example of an olefinic Ni(I) complex, [Ni(COD)(OPh*)] (COD = 1,5-cyclooctadiene, OPh* = O(tBu)3C6H2). This route has proven to be highly efficient for several coordination numbers and ligand classes enabling access to the following complexes: [Ni(IPr)(OPh*)] (IPr = 1,3-bis(2,6-diisopropylphenyl)imidazol-2-ylidene), [Ni(dcype)(OPh*)] (dcype = 1,2-bis(dicyclohexylphosphino)ethane), [Ni(dppe)(OPh*)] (dppe = 1,2-bis(diphenylphosphino)ethane), and [Ni(terpy)(OPh*)] (terpy = 2,2':6',2″-terpyridine). Moreover, reacting [Ni(dcype)(OPh*)] with trimethylsilyl triflate has led to the isolation of a unique example of a cationic binuclear Ni(I)-arene complex. All these complexes have been characterized by single-crystal X-ray, DFT, and EPR analyses, thus providing crucial experimental and theoretical information about their coordination environment and confirming a d9 electronic structure for all complexes involved. Overall, this new synthetic approach offers exciting opportunities for the discovery of new stoichiometric and catalytic reactivity as well as the mechanistic elucidation of Ni-based catalytic cycles.
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Affiliation(s)
- Alessandro Bismuto
- Laboratorium für Organische Chemie, ETH Zürich, Vladimir-Prelog-Weg 3, HCI, 8093 Zürich, Switzerland
| | - Patrick Müller
- Laboratorium für Organische Chemie, ETH Zürich, Vladimir-Prelog-Weg 3, HCI, 8093 Zürich, Switzerland
| | - Patrick Finkelstein
- Laboratorium für Organische Chemie, ETH Zürich, Vladimir-Prelog-Weg 3, HCI, 8093 Zürich, Switzerland
| | - Nils Trapp
- Laboratorium für Organische Chemie, ETH Zürich, Vladimir-Prelog-Weg 3, HCI, 8093 Zürich, Switzerland
| | - Gunnar Jeschke
- Laboratorium für Physikalische Chemie, ETH Zürich, Vladimir-Prelog-Weg 2, HCI, 8093 Zürich, Switzerland
| | - Bill Morandi
- Laboratorium für Organische Chemie, ETH Zürich, Vladimir-Prelog-Weg 3, HCI, 8093 Zürich, Switzerland
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21
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Yu HC, Telser J, Mankad NP. Synthesis and Characterization of Heteromultinuclear Ni/M Clusters (M = Fe, Ru, W) Including a Paramagnetic (NHC)Ni–WCp*(CO)3 Heterobinuclear Complex. Organometallics 2021; 40:2123-2132. [DOI: 10.1021/acs.organomet.1c00263] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Hsien-Cheng Yu
- Department of Chemistry, University of Illinois at Chicago, 845 W. Taylor Street, Chicago, Illinois 60607, United States
| | - Joshua Telser
- Department of Biological, Physical and Health Sciences, Roosevelt University, Chicago, Illinois 60605, United States
| | - Neal P. Mankad
- Department of Chemistry, University of Illinois at Chicago, 845 W. Taylor Street, Chicago, Illinois 60607, United States
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22
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Greaves ME, Johnson Humphrey ELB, Nelson DJ. Reactions of nickel(0) with organochlorides, organobromides, and organoiodides: mechanisms and structure/reactivity relationships. Catal Sci Technol 2021. [DOI: 10.1039/d1cy00374g] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
The reactions of nickel(0) complexes with phosphine, bipyridine-type, and N-heterocyclic carbene ligands with aryl, vinyl, and alkyl halides is reviewed.
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Affiliation(s)
- Megan E. Greaves
- WestCHEM Department of Pure & Applied Chemistry
- University of Strathclyde
- Glasgow
- UK
- Chemical Development
| | | | - David J. Nelson
- WestCHEM Department of Pure & Applied Chemistry
- University of Strathclyde
- Glasgow
- UK
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23
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Zhang S, Weniger F, Ye F, Rabeah J, Ellinger S, Zaragoza F, Taeschler C, Neumann H, Brückner A, Beller M. Selective nickel-catalyzed fluoroalkylations of olefins. Chem Commun (Camb) 2020; 56:15157-15160. [PMID: 33210679 DOI: 10.1039/d0cc06652d] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Mild and selective nickel-catalyzed trifluoromethylation and perfluoroalkylation reactions of alkenes were developed to provide fluorinated olefins, including natural products, pharmaceuticals, and variety of synthetic building blocks in good to excellent yields (38 examples). Control experiments, kinetic measurements and in situ EPR studies reveal the importance of radical species and the formation of 1,2-adducts as intermediates.
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Affiliation(s)
- Shaoke Zhang
- Leibniz-Institut für Katalyse e.V., Albert-Einstein-Straße 29a, 18059 Rostock, Germany.
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24
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Sen A, Dhital RN, Sato T, Ohno A, Yamada YMA. Switching from Biaryl Formation to Amidation with Convoluted Polymeric Nickel Catalysis. ACS Catal 2020. [DOI: 10.1021/acscatal.0c03888] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Affiliation(s)
- Abhijit Sen
- RIKEN Center for Sustainable Resource Science, Wako, Saitama 351-0198, Japan
| | - Raghu N. Dhital
- RIKEN Center for Sustainable Resource Science, Wako, Saitama 351-0198, Japan
| | - Takuma Sato
- RIKEN Center for Sustainable Resource Science, Wako, Saitama 351-0198, Japan
| | - Aya Ohno
- RIKEN Center for Sustainable Resource Science, Wako, Saitama 351-0198, Japan
| | - Yoichi M. A. Yamada
- RIKEN Center for Sustainable Resource Science, Wako, Saitama 351-0198, Japan
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25
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Liu S, Brunel D, Sun K, Zhang Y, Chen H, Xiao P, Dumur F, Lalevée J. Novel Photoinitiators Based on Benzophenone-Triphenylamine Hybrid Structure for LED Photopolymerization. Macromol Rapid Commun 2020; 41:e2000460. [PMID: 32959447 DOI: 10.1002/marc.202000460] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2020] [Revised: 09/08/2020] [Indexed: 01/20/2023]
Abstract
In this study, a new generation of photoinitiator (PI) based on hybrid structures combining benzophenone and triphenylamine is proposed. Remarkably, these photoinitiators (noted monofunctional benzophenone-triphenylamine (MBP-TPA) and trifunctional benzophenone-triphenylamine (TBP-TPA)) are designed and developed for the photopolymerization under light-emitting diodes (LEDs). Benzoyl substituents connected with triphenylamine moiety contribute to the excellent absorption properties which results in both high final conversions and polymerization rates in free radical photopolymerization (FRP). Remarkably, TBP-TPA owning trifunctional benzophenone group exhibits a better Type II PI behavior than well-known 2-isopropylthioxanthone for photopolymerization under LED@365 and 405 nm irradiation. FRP and cationic photopolymerization of TBP-TPA-based systems are applied on 3D printing experiments, and good profiles of the 3D patterns are observed. The high molecular weight of TBP-TPA associated with it trifunctional character can also be very interesting for a better migration stability of PIs that is a huge challenge. The development of this new generation of photoinitiators based on benzophenone hybrid structures is a real breakthrough. It reveals that the novel versatile photoinitiators based on benzophenone-triphenylamine hybrid structures have great potentials for future industrial applications (e.g., 3D printing, composites, etc.).
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Affiliation(s)
- Shaohui Liu
- Institut de Science des Matériaux de Mulhouse, IS2M-UMR CNRS 7361, UHA, 15, rue Jean Starcky, Mulhouse Cedex, 68057, France
| | - Damien Brunel
- Aix Marseille Univ, CNRS, ICR UMR 7273, Marseille, F-13397, France
| | - Ke Sun
- Institut de Science des Matériaux de Mulhouse, IS2M-UMR CNRS 7361, UHA, 15, rue Jean Starcky, Mulhouse Cedex, 68057, France
| | - Yijun Zhang
- Institut de Science des Matériaux de Mulhouse, IS2M-UMR CNRS 7361, UHA, 15, rue Jean Starcky, Mulhouse Cedex, 68057, France
| | - Hong Chen
- Institut de Science des Matériaux de Mulhouse, IS2M-UMR CNRS 7361, UHA, 15, rue Jean Starcky, Mulhouse Cedex, 68057, France
| | - Pu Xiao
- Research School of Chemistry, Australian National University, Canberra, ACT 2601, Australia
| | - Frédéric Dumur
- Aix Marseille Univ, CNRS, ICR UMR 7273, Marseille, F-13397, France
| | - Jacques Lalevée
- Institut de Science des Matériaux de Mulhouse, IS2M-UMR CNRS 7361, UHA, 15, rue Jean Starcky, Mulhouse Cedex, 68057, France
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26
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Tendera L, Schaub T, Krahfuss MJ, Kuntze‐Fechner MW, Radius U. Large vs. Small NHC Ligands in Nickel(0) Complexes: The Coordination of Olefins, Ketones and Aldehydes at [Ni(NHC)
2
]. Eur J Inorg Chem 2020. [DOI: 10.1002/ejic.202000493] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Lukas Tendera
- Institut für Anorganische Chemie Julius‐Maximilians‐Universität Würzburg Am Hubland 97074 Würzburg Germany
| | - Thomas Schaub
- CaRLa (Catalysis Research Laboratory) Im Neuenheimer Feld 584 69120 Heidelberg Germany
- Organic Synthesis BASF SE Carl‐Bosch‐Strasse 38 67056 Ludwigshafen Germany
| | - Mirjam J. Krahfuss
- Institut für Anorganische Chemie Julius‐Maximilians‐Universität Würzburg Am Hubland 97074 Würzburg Germany
| | | | - Udo Radius
- Institut für Anorganische Chemie Julius‐Maximilians‐Universität Würzburg Am Hubland 97074 Würzburg Germany
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27
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Liu J, Jia X, Chen X, Sun H, Li Y, Kramer S, Lian Z. Nickel-Catalyzed Intramolecular Desulfitative C-N Coupling: A Synthesis of Aromatic Amines. J Org Chem 2020; 85:5702-5711. [PMID: 32223239 DOI: 10.1021/acs.joc.0c00009] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
A nickel-catalyzed intramolecular C-N coupling reaction via SO2 extrusion is presented. The use of a catalytic amount of BPh3 allows the transformation to take place under much milder conditions (60 °C) than previously reported C-N coupling reactions by CO or CO2 extrusion (160-180 °C). In addition, this method displays good functional group tolerance and versatility, as it can be applied to the synthesis of dialkyl aryl amines, alkyl diaryl amines, and triaryl amines. The robustness of the desulfitative C-N coupling is demonstrated by three high-yielding gram-scale reactions.
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Affiliation(s)
- Jiangjun Liu
- Department of Dermatology, State Key Laboratory of Biotherapy and Cancer Center, West China Hospital and West China School of Pharmacy, Sichuan University, Chengdu 610041, P. R. China
| | - Xiuwen Jia
- Department of Dermatology, State Key Laboratory of Biotherapy and Cancer Center, West China Hospital and West China School of Pharmacy, Sichuan University, Chengdu 610041, P. R. China
| | - Xuemeng Chen
- Department of Dermatology, State Key Laboratory of Biotherapy and Cancer Center, West China Hospital and West China School of Pharmacy, Sichuan University, Chengdu 610041, P. R. China
| | - Haotian Sun
- Department of Dermatology, State Key Laboratory of Biotherapy and Cancer Center, West China Hospital and West China School of Pharmacy, Sichuan University, Chengdu 610041, P. R. China
| | - Yue Li
- Department of Dermatology, State Key Laboratory of Biotherapy and Cancer Center, West China Hospital and West China School of Pharmacy, Sichuan University, Chengdu 610041, P. R. China
| | - Søren Kramer
- Department of Chemistry, Technical University of Denmark, 2800 Kongens Lyngby, Denmark
| | - Zhong Lian
- Department of Dermatology, State Key Laboratory of Biotherapy and Cancer Center, West China Hospital and West China School of Pharmacy, Sichuan University, Chengdu 610041, P. R. China.,Key Laboratory of Drug-Targeting and Drug Delivery System of the Education Ministry, Sichuan Engineering Laboratory for Plant-Sourced Drug and Sichuan Research Center for Drug Precision Industrial Technology, West China School of Pharmacy, Sichuan University, Chengdu 610041, P. R. China
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28
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Sun R, Qin Y, Nocera DG. General Paradigm in Photoredox Nickel‐Catalyzed Cross‐Coupling Allows for Light‐Free Access to Reactivity. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.201916398] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Rui Sun
- Department of Chemistry and Chemical Biology Harvard University 12 Oxford St. Cambridge MA 02138 USA
| | - Yangzhong Qin
- Department of Chemistry and Chemical Biology Harvard University 12 Oxford St. Cambridge MA 02138 USA
| | - Daniel G. Nocera
- Department of Chemistry and Chemical Biology Harvard University 12 Oxford St. Cambridge MA 02138 USA
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29
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Sun R, Qin Y, Nocera DG. General Paradigm in Photoredox Nickel‐Catalyzed Cross‐Coupling Allows for Light‐Free Access to Reactivity. Angew Chem Int Ed Engl 2020; 59:9527-9533. [DOI: 10.1002/anie.201916398] [Citation(s) in RCA: 52] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2019] [Indexed: 12/14/2022]
Affiliation(s)
- Rui Sun
- Department of Chemistry and Chemical Biology Harvard University 12 Oxford St. Cambridge MA 02138 USA
| | - Yangzhong Qin
- Department of Chemistry and Chemical Biology Harvard University 12 Oxford St. Cambridge MA 02138 USA
| | - Daniel G. Nocera
- Department of Chemistry and Chemical Biology Harvard University 12 Oxford St. Cambridge MA 02138 USA
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30
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Takahashi T, Kurahashi T, Matsubara S. Nickel-Catalyzed Intermolecular Carbobromination of Alkynes. ACS Catal 2020. [DOI: 10.1021/acscatal.0c00980] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Toshifumi Takahashi
- Department of Material Chemistry, Graduate School of Engineering, Kyoto University, Kyoto 615-8510, Japan
| | - Takuya Kurahashi
- Department of Material Chemistry, Graduate School of Engineering, Kyoto University, Kyoto 615-8510, Japan
| | - Seijiro Matsubara
- Department of Material Chemistry, Graduate School of Engineering, Kyoto University, Kyoto 615-8510, Japan
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31
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Cooper AK, Leonard DK, Bajo S, Burton PM, Nelson DJ. Aldehydes and ketones influence reactivity and selectivity in nickel-catalysed Suzuki-Miyaura reactions. Chem Sci 2020; 11:1905-1911. [PMID: 34123283 PMCID: PMC8148322 DOI: 10.1039/c9sc05444h] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023] Open
Abstract
The energetically-favorable coordination of aldehydes and ketones - but not esters or amides - to Ni0 during Suzuki-Miyaura reactions can lead either to exquisite selectivity and enhanced reactivity, or to inhibition of the reaction. Aryl halides where the C-X bond is connected to the same π-system as an aldehyde or ketone undergo unexpectedly rapid oxidative addition to [Ni(COD)(dppf)] (1), and are selectively cross-coupled during competition reactions. When aldehydes and ketones are present in the form of exogenous additives, the cross-coupling reaction is inhibited to an extent that depends on the strength of the coordination of the pendant carbonyl group to Ni0. This work advances our understanding of how common functional groups interact with Ni0 catalysts and how these interactions affect workhorse catalytic reactions in academia and industry.
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Affiliation(s)
- Alasdair K Cooper
- WestCHEM Department of Pure and Applied Chemistry, University of Strathclyde 295 Cathedral Street Glasgow G1 1XL Scotland UK
| | - David K Leonard
- WestCHEM Department of Pure and Applied Chemistry, University of Strathclyde 295 Cathedral Street Glasgow G1 1XL Scotland UK
| | - Sonia Bajo
- WestCHEM Department of Pure and Applied Chemistry, University of Strathclyde 295 Cathedral Street Glasgow G1 1XL Scotland UK
| | - Paul M Burton
- Syngenta, Jealott's Hill International Research Centre Bracknell Berkshire RG42 6EY UK
| | - David J Nelson
- WestCHEM Department of Pure and Applied Chemistry, University of Strathclyde 295 Cathedral Street Glasgow G1 1XL Scotland UK
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32
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Reddy MVK, Anusha G, Reddy PVG. Sterically enriched bulky 1,3-bis(N,N′-aralkyl)benzimidazolium based Pd-PEPPSI complexes for Buchwald–Hartwig amination reactions. NEW J CHEM 2020. [DOI: 10.1039/d0nj01294g] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
A simple and efficient synthesis of a series of unexisting Pd-PEPPSI complexes is summarized. These complexes are exploited for their high catalytic activity towards Buchwald–Hartwig amination.
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33
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Delcaillau T, Bismuto A, Lian Z, Morandi B. Nickel‐katalysierte inter‐ und intramolekulare Arylthioether‐Metathese durch reversible Arylierung. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201910436] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Tristan Delcaillau
- Laboratorium für Organische ChemieETH Zürich Vladimir-Prelog-Weg 3, HCI 8093 Zürich Schweiz
- Max-Planck-Institut für Kohlenforschung Kaiser-Wihelm-Platz 1 45470 Mülheim an der Ruhr Deutschland
| | - Alessandro Bismuto
- Laboratorium für Organische ChemieETH Zürich Vladimir-Prelog-Weg 3, HCI 8093 Zürich Schweiz
| | - Zhong Lian
- Max-Planck-Institut für Kohlenforschung Kaiser-Wihelm-Platz 1 45470 Mülheim an der Ruhr Deutschland
| | - Bill Morandi
- Laboratorium für Organische ChemieETH Zürich Vladimir-Prelog-Weg 3, HCI 8093 Zürich Schweiz
- Max-Planck-Institut für Kohlenforschung Kaiser-Wihelm-Platz 1 45470 Mülheim an der Ruhr Deutschland
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34
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Delcaillau T, Bismuto A, Lian Z, Morandi B. Nickel-Catalyzed Inter- and Intramolecular Aryl Thioether Metathesis by Reversible Arylation. Angew Chem Int Ed Engl 2019; 59:2110-2114. [PMID: 31829493 PMCID: PMC7004142 DOI: 10.1002/anie.201910436] [Citation(s) in RCA: 43] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2019] [Revised: 09/25/2019] [Indexed: 01/24/2023]
Abstract
A nickel‐catalyzed aryl thioether metathesis has been developed to access high‐value thioethers. 1,2‐Bis(dicyclohexylphosphino)ethane (dcype) is essential to promote this highly functional‐group‐tolerant reaction. Furthermore, synthetically challenging macrocycles could be obtained in good yield in an unusual example of ring‐closing metathesis that does not involve alkene bonds. In‐depth organometallic studies support a reversible Ni0/NiII pathway to product formation. Overall, this work not only provides a more sustainable alternative to previous catalytic systems based on Pd, but also presents new applications and mechanistic information that are highly relevant to the further development and application of unusual single‐bond metathesis reactions.
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Affiliation(s)
- Tristan Delcaillau
- Laboratorium für Organische Chemie, ETH Zürich, Vladimir-Prelog-Weg 3, HCI, 8093, Zürich, Switzerland.,Max-Planck-Institut für Kohlenforschung, Kaiser-Wihelm-Platz 1, 45470, Mülheim an der Ruhr, Germany
| | - Alessandro Bismuto
- Laboratorium für Organische Chemie, ETH Zürich, Vladimir-Prelog-Weg 3, HCI, 8093, Zürich, Switzerland
| | - Zhong Lian
- Max-Planck-Institut für Kohlenforschung, Kaiser-Wihelm-Platz 1, 45470, Mülheim an der Ruhr, Germany
| | - Bill Morandi
- Laboratorium für Organische Chemie, ETH Zürich, Vladimir-Prelog-Weg 3, HCI, 8093, Zürich, Switzerland.,Max-Planck-Institut für Kohlenforschung, Kaiser-Wihelm-Platz 1, 45470, Mülheim an der Ruhr, Germany
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35
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36
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Matsubara K, Fujii T, Hosokawa R, Inatomi T, Yamada Y, Koga Y. Fluorine-Substituted Arylphosphine for an NHC-Ni(I) System, Air-Stable in a Solid State but Catalytically Active in Solution. Molecules 2019; 24:molecules24183222. [PMID: 31487944 PMCID: PMC6766797 DOI: 10.3390/molecules24183222] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2019] [Revised: 09/02/2019] [Accepted: 09/03/2019] [Indexed: 11/16/2022] Open
Abstract
Monovalent NHC-nickel complexes bearing triarylphosphine, in which fluorine is incorporated onto the aryl groups, have been synthesized. Tris(3,5-di(trifluoromethyl)-phenyl)phosphine efficiently gave a monovalent nickel bromide complex, whose structure was determined by X-ray diffraction analysis for the first time. In the solid state, the Ni(I) complex was less susceptible to oxidation in air than the triphenylphosphine complex, indicating greatly improved solid-state stability. In contrast, the Ni(I) complex in solution can easily liberate the phosphine, high catalytic activity toward the Kumada–Tamao–Corriu coupling of aryl bromides.
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Affiliation(s)
- Kouki Matsubara
- Department of Chemistry, Fukuoka University, 8-19-1 Nanakuma, Fukuoka 814-0180, Japan.
| | - Takahiro Fujii
- Department of Chemistry, Fukuoka University, 8-19-1 Nanakuma, Fukuoka 814-0180, Japan.
| | - Rion Hosokawa
- Department of Chemistry, Fukuoka University, 8-19-1 Nanakuma, Fukuoka 814-0180, Japan.
| | - Takahiro Inatomi
- Department of Chemistry, Fukuoka University, 8-19-1 Nanakuma, Fukuoka 814-0180, Japan
| | - Yuji Yamada
- Department of Chemistry, Fukuoka University, 8-19-1 Nanakuma, Fukuoka 814-0180, Japan
| | - Yuji Koga
- Department of Chemistry, Fukuoka University, 8-19-1 Nanakuma, Fukuoka 814-0180, Japan
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37
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Abstract
In recent years, several classes of new N-heterocyclic carbene (NHC) ligands were developed around the concept of “flexible steric bulk”. The steric hindrance of these ligands brings stability to the active species, while ligand flexibility still allows for the approach of the substrate. In this review, the synthesis of several types of new classes, such as IBiox, cyclic alkyl amino carbenes (CAAC), ITent, and IPr* are discussed, as well as how they move the state-of-the-art in palladium catalyzed cross-coupling forward.
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38
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Taylor LJ, Kays DL. Low-coordinate first-row transition metal complexes in catalysis and small molecule activation. Dalton Trans 2019; 48:12365-12381. [DOI: 10.1039/c9dt02402f] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
In this Perspective, we will highlight selected examples of transition metal complexes with low coordination numbers whose high reactivity has been exploited in catalysis and the activation of small molecules featuring strong bonds (N2, CO2, and CO).
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Affiliation(s)
| | - Deborah L. Kays
- School of Chemistry
- University of Nottingham
- University Park
- Nottingham
- UK
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