1
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Multem AJ, Tripodi GL, Roithová J. Properties of Metal Hydrides of the Iron Triad. J Am Chem Soc 2023; 145:27555-27562. [PMID: 38059367 PMCID: PMC10740003 DOI: 10.1021/jacs.3c08925] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2023] [Revised: 11/22/2023] [Accepted: 11/27/2023] [Indexed: 12/08/2023]
Abstract
Metal hydride complexes are essential intermediates in hydrogenation reactions. The hydride-donor ability determines the scope of use of these complexes. We present a new, simple mass-spectrometry method to study the hydride-donor ability of metal hydrides using a series of 18 iron, cobalt, and nickel complexes with N- and P-based ligands (L). The mixing of [(L)MII(OTf)2] with NaBH4 forms [(L)MII(BH4)]+ (M = Fe, Co, Ni) that can be detected by electrospray ionization mass spectrometry. Energy-resolved collision-induced dissociations of [(L)MII(BH4)]+ provide threshold energies (ΔECID) for the formations of [(L)MII(H)]+ that correlate well with the hydride donor ability of the metal hydride complexes. We studied the vibrational and electronic spectra of the generated metal hydrides, assigned their structure and spin state, and demonstrated a good correlation between ΔECID and the M-H stretching vibration frequencies. The ΔECID also correlates with reaction rates for hydride transfer reactivity in the gas phase and known reactivity trends in the solution phase.
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Affiliation(s)
- Arie J.
H. Multem
- Department of Spectroscopy and Catalysis,
Institute for Molecules and Materials, Radboud
University Nijmegen, Heyendaalseweg 135, 6525 AJ Nijmegen, The Netherlands
| | - Guilherme L. Tripodi
- Department of Spectroscopy and Catalysis,
Institute for Molecules and Materials, Radboud
University Nijmegen, Heyendaalseweg 135, 6525 AJ Nijmegen, The Netherlands
| | - Jana Roithová
- Department of Spectroscopy and Catalysis,
Institute for Molecules and Materials, Radboud
University Nijmegen, Heyendaalseweg 135, 6525 AJ Nijmegen, The Netherlands
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2
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Zhang G, Zeng H, Zheng S, Neary MC, Dub PA. Markovnikov alcohols via epoxide hydroboration by molecular alkali metal catalysts. iScience 2022; 25:105119. [PMID: 36185366 PMCID: PMC9515598 DOI: 10.1016/j.isci.2022.105119] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2022] [Revised: 08/29/2022] [Accepted: 09/08/2022] [Indexed: 11/28/2022] Open
Affiliation(s)
- Guoqi Zhang
- Department of Sciences, John Jay College and PhD in Chemistry Program, the Graduate Center of City University of New York, New York, NY 10019, USA
- Corresponding author
| | - Haisu Zeng
- Department of Sciences, John Jay College and PhD in Chemistry Program, the Graduate Center of City University of New York, New York, NY 10019, USA
- Department of Chemistry, Hunter College, City University of New York, New York, NY 10065, USA
| | - Shengping Zheng
- Department of Chemistry, Hunter College, City University of New York, New York, NY 10065, USA
| | - Michelle C. Neary
- Department of Chemistry, Hunter College, City University of New York, New York, NY 10065, USA
| | - Pavel A. Dub
- Chemistry Division, Los Alamos National Laboratory, Los Alamos, NM 87545, USA
- Corresponding author
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3
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Cai Y, Jiang S, Rajeshkumar T, Maron L, Xu X. A Planar Nickelaspiropentane Complex with Magnesium-Based Metalloligands: Synthesis, Structure, and Synergistic Dihydrogen Activation. J Am Chem Soc 2022; 144:16647-16655. [PMID: 36041123 DOI: 10.1021/jacs.2c07402] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The nature of transition-metal-olefin bonding has been explained by the Dewar-Chatt-Duncanson model within a continuum of two extremes, namely, a π-complex and a metallacyclopropane. The textbook rule suggests that a low-spin late-transition-metal-ethylene complex more likely forms a π-complex rather than a metallacyclopropane. Herein, we report a low-spin late-transition-metal-bis-ethylene complex forming an unprecedented planar metalla-bis-cyclopropane structure with magnesium-based metalloligands. Treatment of LMgEt (L = [(DippNCMe)2CH]-, Dipp = 2,6-iPr2C6H3) with Ni(cod)2 (cod = 1,5-cyclooctadiene) formed the heterotrimetallic complex (LMg)2Ni(C2H4)2, which features a linear Mg-Ni-Mg linkage and a planar coordination geometry at the nickel center. Both structural features and computational studies strongly supported the Ni(C2H4)2 moiety as a nickelaspiropentane. The exposure of (LMg)2Ni(C2H4)2 to 1 bar H2 at room temperature produced a four-hydride-bridged complex (LMg)2Ni(μ-H)4. The profile of H2 activation was elucidated by density functional theory calculations, which indicated a novel Mg/Ni cooperative activation mechanism with no oxidation occurring at the metal center, differing from the prevailing mono-metal-based redox mechanism. Moreover, the heterotrimetallic complex (LMg)2Ni(C2H4)2 catalyzed the hydrogenation of a wide range of unsaturated substrates under mild conditions.
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Affiliation(s)
- Yanping Cai
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou215123, P. R. China
| | - Shengjie Jiang
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou215123, P. R. China
| | - Thayalan Rajeshkumar
- LPCNO, CNRS & INSA, Université Paul Sabatier, 135 Avenue de Rangueil, 31077Toulouse, France
| | - Laurent Maron
- LPCNO, CNRS & INSA, Université Paul Sabatier, 135 Avenue de Rangueil, 31077Toulouse, France
| | - Xin Xu
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou215123, P. R. China
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4
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Curley JB, Townsend TM, Bernskoetter WH, Hazari N, Mercado BQ. Iron, Cobalt, and Nickel Complexes Supported by a iPrPNPhP Pincer Ligand. Organometallics 2022. [DOI: 10.1021/acs.organomet.1c00646] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Julia B. Curley
- The Department of Chemistry, Yale University, P.O. Box 208107, New Haven, Connecticut 06520, United States
| | - Tanya M. Townsend
- The Department of Chemistry, Yale University, P.O. Box 208107, New Haven, Connecticut 06520, United States
| | - Wesley H. Bernskoetter
- The Department of Chemistry, The University of Missouri, Columbia, Missouri 65211, United States
| | - Nilay Hazari
- The Department of Chemistry, Yale University, P.O. Box 208107, New Haven, Connecticut 06520, United States
| | - Brandon Q. Mercado
- The Department of Chemistry, Yale University, P.O. Box 208107, New Haven, Connecticut 06520, United States
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5
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Lapointe S, Pandey DK, Gallagher JM, Osborne J, Fayzullin RR, Khaskin E, Khusnutdinova JR. Cobalt Complexes of Bulky PNP Ligand: H2 Activation and Catalytic Two-Electron Reactivity in Hydrogenation of Alkenes and Alkynes. Organometallics 2021. [DOI: 10.1021/acs.organomet.1c00488] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Sébastien Lapointe
- Coordination Chemistry and Catalysis Unit, Okinawa Institute of Science and Technology Graduate University, 1919-1 Tancha, Onna-son, Okinawa 904-0495, Japan
| | - Dilip K. Pandey
- Coordination Chemistry and Catalysis Unit, Okinawa Institute of Science and Technology Graduate University, 1919-1 Tancha, Onna-son, Okinawa 904-0495, Japan
| | - James M. Gallagher
- Coordination Chemistry and Catalysis Unit, Okinawa Institute of Science and Technology Graduate University, 1919-1 Tancha, Onna-son, Okinawa 904-0495, Japan
| | - James Osborne
- Coordination Chemistry and Catalysis Unit, Okinawa Institute of Science and Technology Graduate University, 1919-1 Tancha, Onna-son, Okinawa 904-0495, Japan
| | - Robert R. Fayzullin
- Arbuzov Institute of Organic and Physical Chemistry, FRC Kazan Scientific Center, Russian Academy of Sciences, 8 Arbuzov Street, Kazan 420088, Russian Federation
| | - Eugene Khaskin
- Coordination Chemistry and Catalysis Unit, Okinawa Institute of Science and Technology Graduate University, 1919-1 Tancha, Onna-son, Okinawa 904-0495, Japan
| | - Julia R. Khusnutdinova
- Coordination Chemistry and Catalysis Unit, Okinawa Institute of Science and Technology Graduate University, 1919-1 Tancha, Onna-son, Okinawa 904-0495, Japan
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6
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Du C, Zhou X, Li W, Wen X, Ke Z, Zhao C. Unusual mechanism of paramagnetic nickel-catalysed α-alkylation of amides. Dalton Trans 2021; 50:6923-6932. [PMID: 33928994 DOI: 10.1039/d1dt01206a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Nickel transition-metal catalysts are important materials which are widely used in (de)hydrogenation reactions. Typical NiII catalysts adopt a square planar geometry and a low-spin state owing to their d8 electronic configuration. Here, we describe a mechanistic investigation of a novel octahedral NiII catalyst with a paramagnetic nature catalysing the α-alkylation of amides. Both non-bifunctional and bifunctional pathways were considered. In addition, we clarified the superiority of the high-spin state by comparing the geometries, valence electronic configurations, and rate-limiting energy barriers of the high- and low-spin states. Our results indicate that the novel octahedral nickel catalyst favours the bifunctional pathway and tends to maintain a high-spin state throughout the reaction due to the N-arm ligand. This computational study suggests that the spin state has the potential to influence the catalyst structure and reaction mechanism. Furthermore, these findings present novel insights for the design of NiII catalysts with high-spin states.
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Affiliation(s)
- Chao Du
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry, Sun Yat-sen University, Guangzhou 510275, P. R. China.
| | - Xiaoyu Zhou
- School of Materials Science and Engineering, PCFM Lab, Sun Yat-sen University, Guangzhou, P. R. China.
| | - Weikang Li
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry, Sun Yat-sen University, Guangzhou 510275, P. R. China.
| | - Xiuling Wen
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry, Sun Yat-sen University, Guangzhou 510275, P. R. China.
| | - Zhuofeng Ke
- School of Materials Science and Engineering, PCFM Lab, Sun Yat-sen University, Guangzhou, P. R. China.
| | - Cunyuan Zhao
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry, Sun Yat-sen University, Guangzhou 510275, P. R. China.
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7
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Antil N, Kumar A, Akhtar N, Newar R, Begum W, Dwivedi A, Manna K. Aluminum Metal–Organic Framework-Ligated Single-Site Nickel(II)-Hydride for Heterogeneous Chemoselective Catalysis. ACS Catal 2021. [DOI: 10.1021/acscatal.0c04379] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Neha Antil
- Department of Chemistry, Indian Institute of Technology Delhi, Hauz Khas, New Delhi 110016, India
| | - Ajay Kumar
- Department of Chemistry, Indian Institute of Technology Delhi, Hauz Khas, New Delhi 110016, India
| | - Naved Akhtar
- Department of Chemistry, Indian Institute of Technology Delhi, Hauz Khas, New Delhi 110016, India
| | - Rajashree Newar
- Department of Chemistry, Indian Institute of Technology Delhi, Hauz Khas, New Delhi 110016, India
| | - Wahida Begum
- Department of Chemistry, Indian Institute of Technology Delhi, Hauz Khas, New Delhi 110016, India
| | - Ashutosh Dwivedi
- Beamline Development and Application Section, Bhabha Atomic Research Centre, Mumbai 400085, India
| | - Kuntal Manna
- Department of Chemistry, Indian Institute of Technology Delhi, Hauz Khas, New Delhi 110016, India
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8
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Lücke MP, Yao S, Driess M. Boosting homogeneous chemoselective hydrogenation of olefins mediated by a bis(silylenyl)terphenyl-nickel(0) pre-catalyst. Chem Sci 2021; 12:2909-2915. [PMID: 34164057 PMCID: PMC8179395 DOI: 10.1039/d0sc06471h] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2020] [Accepted: 01/04/2021] [Indexed: 11/21/2022] Open
Abstract
The isolable chelating bis(N-heterocyclic silylenyl)-substituted terphenyl ligand [SiII(Terp)SiII] as well as its bis(phosphine) analogue [PIII(Terp)PIII] have been synthesised and fully characterised. Their reaction with Ni(cod)2 (cod = cycloocta-1,5-diene) affords the corresponding 16 VE nickel(0) complexes with an intramolecular η 2-arene coordination of Ni, [E(Terp)E]Ni(η 2-arene) (E = PIII, SiII; arene = phenylene spacer). Due to a strong cooperativity of the Si and Ni sites in H2 activation and H atom transfer, [SiII(Terp)SiII]Ni(η 2-arene) mediates very effectively and chemoselectively the homogeneously catalysed hydrogenation of olefins bearing functional groups at 1 bar H2 pressure and room temperature; in contrast, the bis(phosphine) analogous complex shows only poor activity. Catalytic and stoichiometric experiments revealed the important role of the η2-coordination of the Ni(0) site by the intramolecular phenylene with respect to the hydrogenation activity of [SiII(Terp)SiII]Ni(η 2-arene). The mechanism has been established by kinetic measurements, including kinetic isotope effect (KIE) and Hammet-plot correlation. With this system, the currently highest performance of a homogeneous nickel-based hydrogenation catalyst of olefins (TON = 9800, TOF = 6800 h-1) could be realised.
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Affiliation(s)
- Marcel-Philip Lücke
- Department of Chemistry: Metalorganics and Inorganic Materials Technische Universität Berlin Strasse des 17. Juni 115, Sekr. C2 D-10623 Berlin Germany
| | - Shenglai Yao
- Department of Chemistry: Metalorganics and Inorganic Materials Technische Universität Berlin Strasse des 17. Juni 115, Sekr. C2 D-10623 Berlin Germany
| | - Matthias Driess
- Department of Chemistry: Metalorganics and Inorganic Materials Technische Universität Berlin Strasse des 17. Juni 115, Sekr. C2 D-10623 Berlin Germany
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9
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Jagtap RA, Ankade SB, Gonnade RG, Punji B. Achiral and chiral NNN-pincer nickel complexes with oxazolinyl backbones: application in transfer hydrogenation of ketones. NEW J CHEM 2021. [DOI: 10.1039/d1nj01698a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
NNN-based achiral and chiral (oxazolinyl)amido-pincer nickel complexes are developed and employed for the catalytic transfer hydrogenation of ketones.
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Affiliation(s)
- Rahul A. Jagtap
- Organometallic Synthesis and Catalysis Lab
- Chemical Engineering Division
- CSIR–National Chemical Laboratory (CSIR–NCL)
- Dr Homi Bhabha Road
- Pune – 411 008
| | - Shidheshwar B. Ankade
- Organometallic Synthesis and Catalysis Lab
- Chemical Engineering Division
- CSIR–National Chemical Laboratory (CSIR–NCL)
- Dr Homi Bhabha Road
- Pune – 411 008
| | - Rajesh G. Gonnade
- Centre for Material Characterization
- CSIR–National Chemical Laboratory
- Pune – 411 008
- India
| | - Benudhar Punji
- Organometallic Synthesis and Catalysis Lab
- Chemical Engineering Division
- CSIR–National Chemical Laboratory (CSIR–NCL)
- Dr Homi Bhabha Road
- Pune – 411 008
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10
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Arora V, Narjinari H, Nandi PG, Kumar A. Recent advances in pincer-nickel catalyzed reactions. Dalton Trans 2021; 50:3394-3428. [PMID: 33595564 DOI: 10.1039/d0dt03593a] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Organometallic catalysts have played a key role in accomplishing numerous synthetically valuable organic transformations that are either otherwise not possible or inefficient. The use of precious, sparse and toxic 4d and 5d metals are an apparent downside of several such catalytic systems despite their immense success over the last several decades. The use of complexes containing Earth-abundant, inexpensive and less hazardous 3d metals, such as nickel, as catalysts for organic transformations has been an emerging field in recent times. In particular, the versatile nature of the corresponding pincer-metal complexes, which offers great control of their reactivity via countless variations, has garnered great interest among organometallic chemists who are looking for greener and cheaper alternatives. In this context, the current review attempts to provide a glimpse of recent developments in the chemistry of pincer-nickel catalyzed reactions. Notably, there have been examples of pincer-nickel catalyzed reactions involving two electron changes via purely organometallic mechanisms that are strikingly similar to those observed with heavier Pd and Pt analogues. On the other hand, there have been distinct differences where the pincer-nickel complexes catalyze single-electron radical reactions. The applicability of pincer-nickel complexes in catalyzing cross-coupling reactions, oxidation reactions, (de)hydrogenation reactions, dehydrogenative coupling, hydrosilylation, hydroboration, C-H activation and carbon dioxide functionalization has been reviewed here from synthesis and mechanistic points of view. The flurry of global pincer-nickel related activities offer promising avenues in catalyzing synthetically valuable organic transformations.
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Affiliation(s)
- Vinay Arora
- Department of Chemistry, Indian Institute of Technology Guwahati, Guwahati-781039, Assam, India.
| | - Himani Narjinari
- Department of Chemistry, Indian Institute of Technology Guwahati, Guwahati-781039, Assam, India.
| | - Pran Gobinda Nandi
- Department of Chemistry, Indian Institute of Technology Guwahati, Guwahati-781039, Assam, India.
| | - Akshai Kumar
- Department of Chemistry, Indian Institute of Technology Guwahati, Guwahati-781039, Assam, India. and Centre for Nanotechnology, Indian Institute of Technology Guwahati, Guwahati-781039, Assam, India
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11
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Ekanayake DA, Chakraborty A, Krause JA, Guan H. Hydrogenation reactions catalyzed by HN(CH2CH2PR2)2-ligated copper complexes. Inorg Chem Front 2021. [DOI: 10.1039/d1qi00776a] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Hydrogenation of aldehydes and ketones can be catalyzed by a PNP-ligated copper hydride that is accessible from the copper borohydride or bromide complex or the copper hydride cluster.
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Affiliation(s)
- Dewmi A. Ekanayake
- Department of Chemistry, University of Cincinnati, P.O. Box 210172, Cincinnati, Ohio 45221-0172, USA
| | - Arundhoti Chakraborty
- Department of Chemistry, University of Cincinnati, P.O. Box 210172, Cincinnati, Ohio 45221-0172, USA
| | - Jeanette A. Krause
- Department of Chemistry, University of Cincinnati, P.O. Box 210172, Cincinnati, Ohio 45221-0172, USA
| | - Hairong Guan
- Department of Chemistry, University of Cincinnati, P.O. Box 210172, Cincinnati, Ohio 45221-0172, USA
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12
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Rahaman SMW, Pandey DK, Rivada‐Wheelaghan O, Dubey A, Fayzullin RR, Khusnutdinova JR. Hydrogenation of Alkenes Catalyzed by a Non‐pincer Mn Complex. ChemCatChem 2020. [DOI: 10.1002/cctc.202001158] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- S. M. Wahidur Rahaman
- Coordination Chemistry and Catalysis Unit Okinawa Institute of Science and Technology Graduate University 1919-1 Tancha Onna Okinawa 904-0495 Japan
| | - Dilip K. Pandey
- Coordination Chemistry and Catalysis Unit Okinawa Institute of Science and Technology Graduate University 1919-1 Tancha Onna Okinawa 904-0495 Japan
| | - Orestes Rivada‐Wheelaghan
- Coordination Chemistry and Catalysis Unit Okinawa Institute of Science and Technology Graduate University 1919-1 Tancha Onna Okinawa 904-0495 Japan
| | - Abhishek Dubey
- Coordination Chemistry and Catalysis Unit Okinawa Institute of Science and Technology Graduate University 1919-1 Tancha Onna Okinawa 904-0495 Japan
| | - Robert R. Fayzullin
- Arbuzov Institute of Organic and Physical Chemistry FRC Kazan Scientific Center Russian Academy of Sciences 8 Arbuzov Street Kazan 420088 Russia
| | - Julia R. Khusnutdinova
- Coordination Chemistry and Catalysis Unit Okinawa Institute of Science and Technology Graduate University 1919-1 Tancha Onna Okinawa 904-0495 Japan
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13
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Transition metal center effect on the mechanism of homogenous hydrogenation and dehydrogenation. Inorganica Chim Acta 2020. [DOI: 10.1016/j.ica.2020.119808] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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14
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Kani I, Unver H. Bimetallic Ni(II) complex with carboxylate bridging for homogeneous hydrogenation of alkenes with NaBH4. Polyhedron 2020. [DOI: 10.1016/j.poly.2020.114649] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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15
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Ekanayake DA, Chakraborty A, Krause JA, Guan H. Steric Effects of HN(CH2CH2PR2)2 on the Nuclearity of Copper Hydrides. Inorg Chem 2020; 59:12817-12828. [DOI: 10.1021/acs.inorgchem.0c01865] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Affiliation(s)
- Dewmi A. Ekanayake
- Department of Chemistry, University of Cincinnati, P.O. Box 210172, Cincinnati, Ohio 45221-0172, United States
| | - Arundhoti Chakraborty
- Department of Chemistry, University of Cincinnati, P.O. Box 210172, Cincinnati, Ohio 45221-0172, United States
| | - Jeanette A. Krause
- Department of Chemistry, University of Cincinnati, P.O. Box 210172, Cincinnati, Ohio 45221-0172, United States
| | - Hairong Guan
- Department of Chemistry, University of Cincinnati, P.O. Box 210172, Cincinnati, Ohio 45221-0172, United States
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16
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Maier TM, Sandl S, Melzl P, Zweck J, Jacobi von Wangelin A, Wolf R. Heterogeneous Olefin Hydrogenation Enabled by a Highly-Reduced Nickel(-II) Catalyst Precursor. Chemistry 2020; 26:6113-6117. [PMID: 32034810 PMCID: PMC7318650 DOI: 10.1002/chem.201905537] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2019] [Revised: 02/03/2020] [Indexed: 12/21/2022]
Abstract
The hydrogenation of olefins, styrenes, enoates, imines, and sterically hindered tri-substituted olefins was accomplished using the pre-catalyst dilithiumbis(cycloocta-1,5-diene)nickelate(-II) (1). The mild conditions tolerate hydroxyl, halide, ester, and lactone functionalities. Mechanistic studies, including reaction progress analyses, poisoning experiments, and multinuclear NMR monitoring, indicate that a heterotopic (nickel nanoparticle) catalyst is in operation.
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Affiliation(s)
- Thomas M. Maier
- University of RegensburgInstitute of Inorganic Chemistry93040RegensburgGermany
| | - Sebastian Sandl
- University of HamburgDepartment of Chemistry20146HamburgGermany
| | - Peter Melzl
- University of RegensburgInstitute of Experimental and Applied Physics93040RegensburgGermany
| | - Josef Zweck
- University of RegensburgInstitute of Experimental and Applied Physics93040RegensburgGermany
| | | | - Robert Wolf
- University of RegensburgInstitute of Inorganic Chemistry93040RegensburgGermany
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17
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Murugesan K, Wei Z, Chandrashekhar VG, Jiao H, Beller M, Jagadeesh RV. General and selective synthesis of primary amines using Ni-based homogeneous catalysts. Chem Sci 2020; 11:4332-4339. [PMID: 34122891 PMCID: PMC8152594 DOI: 10.1039/d0sc01084g] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023] Open
Abstract
The development of base metal catalysts for industrially relevant amination and hydrogenation reactions by applying abundant and atom economical reagents continues to be important for the cost-effective and sustainable synthesis of amines which represent highly essential chemicals. In particular, the synthesis of primary amines is of central importance because these compounds serve as key precursors and central intermediates to produce value-added fine and bulk chemicals as well as pharmaceuticals, agrochemicals and materials. Here we report a Ni-triphos complex as the first Ni-based homogeneous catalyst for both reductive amination of carbonyl compounds with ammonia and hydrogenation of nitroarenes to prepare all kinds of primary amines. Remarkably, this Ni-complex enabled the synthesis of functionalized and structurally diverse benzylic, heterocyclic and aliphatic linear and branched primary amines as well as aromatic primary amines starting from inexpensive and easily accessible carbonyl compounds (aldehydes and ketones) and nitroarenes using ammonia and molecular hydrogen. This Ni-catalyzed reductive amination methodology has been applied for the amination of more complex pharmaceuticals and steroid derivatives. Detailed DFT computations have been performed for the Ni-triphos based reductive amination reaction, and they revealed that the overall reaction has an inner-sphere mechanism with H2 metathesis as the rate-determining step. A Ni-triphos based homogeneous catalyst enabled the synthesis of all kinds of primary amines by reductive amination of carbonyl compounds with ammonia and hydrogenation of nitroarenes.![]()
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Affiliation(s)
- Kathiravan Murugesan
- Leibniz-Institut für Katalyse e. V. Albert Einstein-Str. 29a 18059 Rostock Germany
| | - Zhihong Wei
- Leibniz-Institut für Katalyse e. V. Albert Einstein-Str. 29a 18059 Rostock Germany
| | | | - Haijun Jiao
- Leibniz-Institut für Katalyse e. V. Albert Einstein-Str. 29a 18059 Rostock Germany
| | - Matthias Beller
- Leibniz-Institut für Katalyse e. V. Albert Einstein-Str. 29a 18059 Rostock Germany
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18
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Papa V, Cao Y, Spannenberg A, Junge K, Beller M. Development of a practical non-noble metal catalyst for hydrogenation of N-heteroarenes. Nat Catal 2020. [DOI: 10.1038/s41929-019-0404-6] [Citation(s) in RCA: 71] [Impact Index Per Article: 17.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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19
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Cooperative Reactivity by Pincer-Type Complexes Possessing Secondary Coordination Sphere. TOP ORGANOMETAL CHEM 2020. [DOI: 10.1007/3418_2020_65] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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20
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Hydrogenation Reactions Catalyzed by PNP-Type Complexes Featuring a HN(CH2CH2PR2)2 Ligand. TOP ORGANOMETAL CHEM 2020. [DOI: 10.1007/3418_2020_63] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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21
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Yan P, Li MMJ, Kennedy E, Adesina A, Zhao G, Setiawan A, Stockenhuber M. The role of acid and metal sites in hydrodeoxygenation of guaiacol over Ni/Beta catalysts. Catal Sci Technol 2020. [DOI: 10.1039/c9cy01970g] [Citation(s) in RCA: 43] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Hydrodeoxygenation (HDO) of guaiacol over Ni supported on zeolites (HBeta, HZSM-5) with different Si/Al ratios and different metal loadings (2.3–23.4 wt%) was studied in order to elucidate the role of catalyst acidity and Ni structure in the HDO.
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Affiliation(s)
- Penghui Yan
- Chemical Engineering, School of Engineering
- The University of Newcastle
- Callaghan
- Australia
| | - Molly Meng-Jung Li
- Chemical Engineering, School of Engineering
- The University of Newcastle
- Callaghan
- Australia
| | - Eric Kennedy
- Chemical Engineering, School of Engineering
- The University of Newcastle
- Callaghan
- Australia
| | | | - Guangyu Zhao
- Chemical Engineering, School of Engineering
- The University of Newcastle
- Callaghan
- Australia
| | - Adi Setiawan
- Mechanical Engineering
- Faculty of Engineering
- Universitas Malikussaleh
- Lhokseumawe
- Indonesia
| | - Michael Stockenhuber
- Chemical Engineering, School of Engineering
- The University of Newcastle
- Callaghan
- Australia
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22
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Mohammadnezhad G, Abad S, Farrokhpour H. Theoretical Evaluation of One-Pot Synthesis of Aliphatic PNP Pincer Ligands. J STRUCT CHEM+ 2019. [DOI: 10.1134/s0022476619110052] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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23
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Wang Z, Yu SL, Wei ZB, An DL, Li YY, Gao JX. Synthesis, characterization of novel Nickel(II) complexes with PxNy-Type ligands and their application in reduction of ketones. J Organomet Chem 2019. [DOI: 10.1016/j.jorganchem.2019.120882] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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24
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Dagnaw WM, Lu Y, Zhao R, Wang ZX. DFT Study of PNP-Mn-Catalyzed Acceptorless Dehydrogenative Coupling of Primary Alcohols with Hydrazine to Give Alkene or Azine. Organometallics 2019. [DOI: 10.1021/acs.organomet.9b00429] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Wasihun Menberu Dagnaw
- School of Chemical Sciences, University of the Chinese Academy of Sciences, Beijing 100049, China
| | - Yu Lu
- School of Chemical Sciences, University of the Chinese Academy of Sciences, Beijing 100049, China
| | - Ruihua Zhao
- School of Chemical Sciences, University of the Chinese Academy of Sciences, Beijing 100049, China
| | - Zhi-Xiang Wang
- School of Chemical Sciences, University of the Chinese Academy of Sciences, Beijing 100049, China
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25
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Murugesan K, Bheeter CB, Linnebank PR, Spannenberg A, Reek JNH, Jagadeesh RV, Beller M. Nickel-Catalyzed Stereodivergent Synthesis of E- and Z-Alkenes by Hydrogenation of Alkynes. CHEMSUSCHEM 2019; 12:3363-3369. [PMID: 30977957 PMCID: PMC6771912 DOI: 10.1002/cssc.201900784] [Citation(s) in RCA: 45] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/19/2019] [Revised: 04/11/2019] [Indexed: 06/09/2023]
Abstract
A convenient protocol for stereodivergent hydrogenation of alkynes to E- and Z-alkenes by using nickel catalysts was developed. Simple Ni(NO3 )2 ⋅6 H2 O as a catalyst precursor formed active nanoparticles, which were effective for the semihydrogenation of several alkynes with high selectivity for the Z-alkene (Z/E>99:1). Upon addition of specific multidentate ligands (triphos, tetraphos), the resulting molecular catalysts were highly selective for the E-alkene products (E/Z>99:1). Mechanistic studies revealed that the Z-alkene-selective catalyst was heterogeneous whereas the E-alkene-selective catalyst was homogeneous. In the latter case, the alkyne was first hydrogenated to a Z-alkene, which was subsequently isomerized to the E-alkene. This proposal was supported by density functional theory calculations. This synthetic methodology was shown to be generally applicable in >40 examples and scalable to multigram-scale experiments.
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Affiliation(s)
- Kathiravan Murugesan
- Leibniz-Institut für Katalyse e.V. an der Universität RostockAlbert-Einstein-Str. 29a18059RostockGermany
| | - Charles Beromeo Bheeter
- Van‘t Hoff Institute for Molecular SciencesUniversity of AmsterdamScience Park 9041098 XHAmsterdamThe Netherlands
| | - Pim R. Linnebank
- Van‘t Hoff Institute for Molecular SciencesUniversity of AmsterdamScience Park 9041098 XHAmsterdamThe Netherlands
| | - Anke Spannenberg
- Leibniz-Institut für Katalyse e.V. an der Universität RostockAlbert-Einstein-Str. 29a18059RostockGermany
| | - Joost N. H. Reek
- Van‘t Hoff Institute for Molecular SciencesUniversity of AmsterdamScience Park 9041098 XHAmsterdamThe Netherlands
| | - Rajenahally V. Jagadeesh
- Leibniz-Institut für Katalyse e.V. an der Universität RostockAlbert-Einstein-Str. 29a18059RostockGermany
| | - Matthias Beller
- Leibniz-Institut für Katalyse e.V. an der Universität RostockAlbert-Einstein-Str. 29a18059RostockGermany
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26
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Gramigna KM, Dickie DA, Foxman BM, Thomas CM. Cooperative H2 Activation across a Metal–Metal Multiple Bond and Hydrogenation Reactions Catalyzed by a Zr/Co Heterobimetallic Complex. ACS Catal 2019. [DOI: 10.1021/acscatal.8b04390] [Citation(s) in RCA: 56] [Impact Index Per Article: 11.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Affiliation(s)
- Kathryn M. Gramigna
- Department of Chemistry, Brandeis University, 415 South Street, Waltham, Massachusetts 02453, United States
| | - Diane A. Dickie
- Department of Chemistry, Brandeis University, 415 South Street, Waltham, Massachusetts 02453, United States
| | - Bruce M. Foxman
- Department of Chemistry, Brandeis University, 415 South Street, Waltham, Massachusetts 02453, United States
| | - Christine M. Thomas
- Department of Chemistry, Brandeis University, 415 South Street, Waltham, Massachusetts 02453, United States
- Department of Chemistry and Biochemistry, The Ohio State University, 100 West 18th Avenue, Columbus, Ohio 43210, United States
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27
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Lu Y, Zhao R, Guo J, Liu Z, Menberu W, Wang Z. A Unified Mechanism to Account for Manganese‐ or Ruthenium‐Catalyzed Nitrile α‐Olefinations by Primary or Secondary Alcohols: A DFT Mechanistic Study. Chemistry 2019; 25:3939-3949. [DOI: 10.1002/chem.201806016] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2018] [Revised: 01/02/2019] [Indexed: 12/16/2022]
Affiliation(s)
- Yu Lu
- School of Chemical SciencesUniversity of Chinese Academy of Sciences Beijing 100049 P. R. China
| | - Ruihua Zhao
- School of Chemical SciencesUniversity of Chinese Academy of Sciences Beijing 100049 P. R. China
| | - Jiandong Guo
- School of Chemical SciencesUniversity of Chinese Academy of Sciences Beijing 100049 P. R. China
| | - Zheyuan Liu
- School of Chemical SciencesUniversity of Chinese Academy of Sciences Beijing 100049 P. R. China
| | - Wasihun Menberu
- School of Chemical SciencesUniversity of Chinese Academy of Sciences Beijing 100049 P. R. China
| | - Zhi‐Xiang Wang
- School of Chemical SciencesUniversity of Chinese Academy of Sciences Beijing 100049 P. R. China
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28
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Ramirez BL, Sharma P, Eisenhart RJ, Gagliardi L, Lu CC. Bimetallic nickel-lutetium complexes: tuning the properties and catalytic hydrogenation activity of the Ni site by varying the Lu coordination environment. Chem Sci 2019; 10:3375-3384. [PMID: 30996926 PMCID: PMC6429466 DOI: 10.1039/c8sc04712j] [Citation(s) in RCA: 41] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2018] [Accepted: 02/03/2019] [Indexed: 12/31/2022] Open
Abstract
We present three heterobimetallic complexes containing an isostructural nickel center and a lutetium ion in varying coordination environments. The bidentate iPr2PCH2NHPh and nonadentate (iPr2PCH2NHAr)3tacn ligands were used to prepare the Lu metalloligands, Lu(iPr2PCH2NPh)3 (1) and Lu{(iPr2PCH2NAr)3tacn} (2), respectively. Reaction of Ni(COD)2 (where COD is 1,5-cyclooctadiene) and 1 afforded NiLu(iPr2PCH2NPh)3 (3), with a Lu coordination number (CN) of 4 and a Ni-Lu distance, d(Ni-Lu), of 2.4644(2) Å. Complex 3 can further bind THF to form 3-THF, increasing both the Lu CN to 5 and d(Ni-Lu) to 2.5989(4) Å. On the other hand, incorporation of Ni(0) into 2 provides NiLu{(iPr2PCH2NAr)3tacn} (4), in which the Lu coordination environment is more saturated (CN = 6), and the d(Ni-Lu) is substantially elongated at 2.9771(5) Å. Cyclic voltammetry of the three Ni-Lu complexes shows an overall ∼410 mV shift in the Ni(0/I) redox couple, suggesting tunability of the Ni electronics across the series. Computational studies reveal polarized bonding interactions between the Ni 3d z 2 (major) and the Lu 5d z 2 (minor) orbitals, where the percentage of Lu character increases in the order: 4 (6.0% Lu 5d z 2 ) < 3-THF (8.5%) < 3 (9.3%). All three Ni-Lu complexes bind H2 at low temperatures (-30 to -80 °C) and are competent catalysts for styrene hydrogenation. Complex 3 outperforms 4 with a four-fold faster rate. Additionally, adding increasing THF equivalents to 3, which would favor build-up of 3-THF, decreases the rate. We propose that altering the coordination sphere of the Lu support can influence the resulting properties and catalytic activity of the active Ni(0) metal center.
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Affiliation(s)
- Bianca L Ramirez
- Department of Chemistry , University of Minnesota , Minneapolis , Minnesota 55455-0431 , USA .
| | - Prachi Sharma
- Department of Chemistry , University of Minnesota , Minneapolis , Minnesota 55455-0431 , USA . .,Minnesota Supercomputing Institute , Chemical Theory Center , University of Minnesota , Minneapolis , Minnesota 55455-0431 , USA
| | - Reed J Eisenhart
- Department of Chemistry , University of Minnesota , Minneapolis , Minnesota 55455-0431 , USA .
| | - Laura Gagliardi
- Department of Chemistry , University of Minnesota , Minneapolis , Minnesota 55455-0431 , USA . .,Minnesota Supercomputing Institute , Chemical Theory Center , University of Minnesota , Minneapolis , Minnesota 55455-0431 , USA
| | - Connie C Lu
- Department of Chemistry , University of Minnesota , Minneapolis , Minnesota 55455-0431 , USA .
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29
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Hou C, Li Y, Zhao C, Ke Z. A DFT study of Co(i) and Ni(ii) pincer complex-catalyzed hydrogenation of ketones: intriguing mechanism dichotomy by ligand field variation. Catal Sci Technol 2019. [DOI: 10.1039/c8cy01862f] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
Ligand field variation governs the mechanism dichotomy for isoelectronic catalysts.
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Affiliation(s)
- Cheng Hou
- School of Materials Science and Engineering
- PCFM Lab
- School of Chemistry
- Sun Yat-sen University
- Guangzhou
| | - Yinwu Li
- School of Materials Science and Engineering
- PCFM Lab
- School of Chemistry
- Sun Yat-sen University
- Guangzhou
| | - Cunyuan Zhao
- School of Materials Science and Engineering
- PCFM Lab
- School of Chemistry
- Sun Yat-sen University
- Guangzhou
| | - Zhuofeng Ke
- School of Materials Science and Engineering
- PCFM Lab
- School of Chemistry
- Sun Yat-sen University
- Guangzhou
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30
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Alig L, Fritz M, Schneider S. First-Row Transition Metal (De)Hydrogenation Catalysis Based On Functional Pincer Ligands. Chem Rev 2018; 119:2681-2751. [PMID: 30596420 DOI: 10.1021/acs.chemrev.8b00555] [Citation(s) in RCA: 497] [Impact Index Per Article: 82.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
The use of 3d metals in de/hydrogenation catalysis has emerged as a competitive field with respect to "traditional" precious metal catalyzed transformations. The introduction of functional pincer ligands that can store protons and/or electrons as expressed by metal-ligand cooperativity and ligand redox-activity strongly stimulated this development as a conceptual starting point for rational catalyst design. This review aims at providing a comprehensive picture of the utilization of functional pincer ligands in first-row transition metal hydrogenation and dehydrogenation catalysis and related synthetic concepts relying on these such as the hydrogen borrowing methodology. Particular emphasis is put on the implementation and relevance of cooperating and redox-active pincer ligands within the mechanistic scenarios.
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Affiliation(s)
- Lukas Alig
- Universität Göttingen , Institut für Anorganische Chemie , Tammannstrasse 4 , D-37077 Göttingen , Germany
| | - Maximilian Fritz
- Universität Göttingen , Institut für Anorganische Chemie , Tammannstrasse 4 , D-37077 Göttingen , Germany
| | - Sven Schneider
- Universität Göttingen , Institut für Anorganische Chemie , Tammannstrasse 4 , D-37077 Göttingen , Germany
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31
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Ünver H. Effective Room Temperature Hydrogenation of Alkenes by X‐Ray Characterized Salicylaldimine‐Rhodium(I) Complex. ChemistrySelect 2018. [DOI: 10.1002/slct.201802866] [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)
- Hakan Ünver
- Department of Chemistry, Faculty of ScienceEskişehir Technical University Eskişehir 26470 Turkey
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32
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Zimmerman AC, Fryzuk MD. β-Hydrogen Elimination and Reductive Elimination from a κ 3-PPC Nickel Complex. Organometallics 2018. [DOI: 10.1021/acs.organomet.8b00297] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Amanda C. Zimmerman
- Department of Chemistry, The University of British Columbia, 2036 Main Mall, Vancouver, British Columbia, Canada V6Z 1Z1
| | - Michael D. Fryzuk
- Department of Chemistry, The University of British Columbia, 2036 Main Mall, Vancouver, British Columbia, Canada V6Z 1Z1
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33
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Wellala NN, Luebking JD, Krause JA, Guan H. Roles of Hydrogen Bonding in Proton Transfer to κ P,κ N,κ P-N(CH 2CH 2P i Pr 2) 2-Ligated Nickel Pincer Complexes. ACS OMEGA 2018; 3:4986-5001. [PMID: 30023906 PMCID: PMC6045406 DOI: 10.1021/acsomega.8b00777] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 04/20/2018] [Accepted: 04/26/2018] [Indexed: 06/08/2023]
Abstract
The nickel PNP pincer complex ( i PrPNP)NiPh ( i PrPNP = κP,κN,κP-N(CH2CH2P i Pr2)2) was prepared by reacting ( i PrPNP)NiBr with PhMgCl or deprotonating [( i PrPNHP)NiPh]Y ( i PrPNHP = κP,κN,κP-HN(CH2CH2P i Pr2)2; Y = Br, PF6) with KO t Bu. The byproducts of the PhMgCl reaction were identified as [( i PrPNHP)NiPh]Br and ( i PrPNP')NiPh ( i PrPNP' = κP,κN,κP-N(CH=CHP i Pr2)(CH2CH2P i Pr2)). The methyl analog ( i PrPNP)NiMe was synthesized from the reaction of ( i PrPNP)NiBr with MeLi, although it was contaminated with ( i PrPNP')NiMe due to ligand oxidation. Protonation of ( i PrPNP)NiX (X = Br, Ph, Me) with various acids, such as HCl, water, and MeOH, was studied in C6D6. Nitrogen protonation was shown to be the most favorable process, producing a cationic species [( i PrPNHP)NiX]+ with the NH moiety hydrogen-bonded to the conjugate base (i.e., Cl-, HO-, or MeO-). Protonation of the Ni-C bond was observed at room temperature with ( i PrPNP)NiMe, whereas at 70 °C with ( i PrPNP)NiPh, both resulting in [( i PrPNHP)NiCl]Cl as the final product. Protonation of ( i PrPNP)NiBr was complicated by site exchange between Br- and the conjugate base and by the degradation of the pincer complexes. Indene, which lacks hydrogen-bonding capability, was unable to protonate ( i PrPNP)NiPh and ( i PrPNP)NiMe, despite being more acidic than water and MeOH. Neutral and cationic nickel pincer complexes involved in this study, including ( i PrPNP')NiBr, ( i PrPNP)NiPh, ( i PrPNP')NiPh, ( i PrPNP)NiMe, [( i PrPNHP)NiPh]Y (Y = Br, PF6, BPh4), [( i PrPNHP)NiPh]2[NiCl4], [( i PrPNHP)NiMe]Y (Y = Cl, Br, BPh4), [( i PrPNHP)NiBr]Br, and [( i PrPNHP)NiCl]Cl, were characterized by X-ray crystallography.
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34
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Valdés H, García-Eleno MA, Canseco-Gonzalez D, Morales-Morales D. Recent Advances in Catalysis with Transition-Metal Pincer Compounds. ChemCatChem 2018. [DOI: 10.1002/cctc.201702019] [Citation(s) in RCA: 146] [Impact Index Per Article: 24.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Affiliation(s)
- Hugo Valdés
- Instituto de Química; Universidad Nacional Autónoma de México; Circuito Exterior s/n, Ciudad Universitaria, Coyoacán 04510 Ciudad de México México
| | - Marco A. García-Eleno
- Centro Conjunto de Investigación en Química Sustentable UAEM-UNAM; Universidad Autónoma del Estado de México; Carretera Toluca-Atlacomulco Km 14.5 Toluca, Estado de México 50200 México
| | - Daniel Canseco-Gonzalez
- CONACYT-Laboratorio Nacional de Investigación y Servicio, Agroalimentario y Forestal; Universidad Autónoma Chapingo; Texcoco de Mora México
| | - David Morales-Morales
- Instituto de Química; Universidad Nacional Autónoma de México; Circuito Exterior s/n, Ciudad Universitaria, Coyoacán 04510 Ciudad de México México
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35
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Li H, Wei D, Bruneau-Voisine A, Ducamp M, Henrion M, Roisnel T, Dorcet V, Darcel C, Carpentier JF, Soulé JF, Sortais JB. Rhenium and Manganese Complexes Bearing Amino-Bis(phosphinite) Ligands: Synthesis, Characterization, and Catalytic Activity in Hydrogenation of Ketones. Organometallics 2018. [DOI: 10.1021/acs.organomet.8b00020] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Haoran Li
- Université de Rennes, CNRS, ISCR-UMR 6226, F-35000 Rennes, France
| | - Duo Wei
- Université de Rennes, CNRS, ISCR-UMR 6226, F-35000 Rennes, France
| | | | - Maxime Ducamp
- Université de Rennes, CNRS, ISCR-UMR 6226, F-35000 Rennes, France
| | - Mickaël Henrion
- Université de Rennes, CNRS, ISCR-UMR 6226, F-35000 Rennes, France
| | - Thierry Roisnel
- Université de Rennes, CNRS, ISCR-UMR 6226, F-35000 Rennes, France
| | - Vincent Dorcet
- Université de Rennes, CNRS, ISCR-UMR 6226, F-35000 Rennes, France
| | | | | | | | - Jean-Baptiste Sortais
- Université de Rennes, CNRS, ISCR-UMR 6226, F-35000 Rennes, France
- LCC-CNRS, Université de Toulouse, CNRS, UPS, Toulouse, France
- Institut Universitaire de France, 1 rue Descartes, 75231 Paris Cedex 05, France
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36
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Robinson SJC, Heinekey DM. Hydride & dihydrogen complexes of earth abundant metals: structure, reactivity, and applications to catalysis. Chem Commun (Camb) 2018; 53:669-676. [PMID: 27928559 DOI: 10.1039/c6cc07529k] [Citation(s) in RCA: 47] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Recent developments in the chemistry of hydride and dihydrogen complexes of iron, cobalt, and nickel are summarized. Applications in homogeneous catalysis are emphasized.
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Affiliation(s)
| | - D M Heinekey
- University of Washington, Department of Chemistry, Seattle, WA, USA
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37
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Léonard NG, Chirik PJ. Air-Stable α-Diimine Nickel Precatalysts for the Hydrogenation of Hindered, Unactivated Alkenes. ACS Catal 2017. [DOI: 10.1021/acscatal.7b03909] [Citation(s) in RCA: 52] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Affiliation(s)
- Nadia G. Léonard
- 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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38
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Wang Y, Kostenko A, Yao S, Driess M. Divalent Silicon-Assisted Activation of Dihydrogen in a Bis(N-heterocyclic silylene)xanthene Nickel(0) Complex for Efficient Catalytic Hydrogenation of Olefins. J Am Chem Soc 2017; 139:13499-13506. [DOI: 10.1021/jacs.7b07167] [Citation(s) in RCA: 90] [Impact Index Per Article: 12.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Yuwen Wang
- Metalorganics and Inorganic
Materials, Department of Chemistry, Technische Universität Berlin, Straße des 17. Juni 135, Sekr. C2, 10623 Berlin, Germany
| | - Arseni Kostenko
- Metalorganics and Inorganic
Materials, Department of Chemistry, Technische Universität Berlin, Straße des 17. Juni 135, Sekr. C2, 10623 Berlin, Germany
| | - Shenglai Yao
- Metalorganics and Inorganic
Materials, Department of Chemistry, Technische Universität Berlin, Straße des 17. Juni 135, Sekr. C2, 10623 Berlin, Germany
| | - Matthias Driess
- Metalorganics and Inorganic
Materials, Department of Chemistry, Technische Universität Berlin, Straße des 17. Juni 135, Sekr. C2, 10623 Berlin, Germany
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39
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Tamizmani M, Sivasankar C. Synthesis, characterization and catalytic application of some novel PNP-Ni(II) complexes: Regio-selective [2+2+2] cycloaddition reaction of alkyne. J Organomet Chem 2017. [DOI: 10.1016/j.jorganchem.2017.02.039] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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40
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Karunananda MK, Mankad NP. Cooperative Strategies for Catalytic Hydrogenation of Unsaturated Hydrocarbons. ACS Catal 2017. [DOI: 10.1021/acscatal.7b02203] [Citation(s) in RCA: 49] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Malkanthi K. Karunananda
- Department of Chemistry, University of Illinois at Chicago, 845 W. Taylor Street, Chicago, Illinois 60607, 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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41
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Wenz J, Kochan A, Wadepohl H, Gade LH. A Readily Accessible Chiral NNN Pincer Ligand with a Pyrrole Backbone and Its Ni(II) Chemistry: Syntheses, Structural Chemistry, and Bond Activations. Inorg Chem 2017; 56:3631-3643. [DOI: 10.1021/acs.inorgchem.7b00077] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
- Jan Wenz
- Anorganisch-Chemisches Institut, Universität Heidelberg, Im Neuenheimer Feld 270, 69120 Heidelberg, Germany
| | - Alexander Kochan
- Anorganisch-Chemisches Institut, Universität Heidelberg, Im Neuenheimer Feld 270, 69120 Heidelberg, Germany
| | - Hubert Wadepohl
- Anorganisch-Chemisches Institut, Universität Heidelberg, Im Neuenheimer Feld 270, 69120 Heidelberg, Germany
| | - Lutz H. Gade
- Anorganisch-Chemisches Institut, Universität Heidelberg, Im Neuenheimer Feld 270, 69120 Heidelberg, Germany
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42
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Cammarota RC, Clouston LJ, Lu CC. Leveraging molecular metal–support interactions for H2 and N2 activation. Coord Chem Rev 2017. [DOI: 10.1016/j.ccr.2016.06.014] [Citation(s) in RCA: 87] [Impact Index Per Article: 12.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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43
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Chen F, Zhang Y, Yu L, Zhu S. Enantioselective NiH/Pmrox-Catalyzed 1,2-Reduction of α,β-Unsaturated Ketones. Angew Chem Int Ed Engl 2017; 56:2022-2025. [DOI: 10.1002/anie.201610990] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2016] [Revised: 12/12/2016] [Indexed: 12/16/2022]
Affiliation(s)
- Fenglin Chen
- State Key Laboratory of Coordination Chemistry; School of Chemistry and Chemical Engineering; Nanjing University; Nanjing 210093 China
| | - Yao Zhang
- State Key Laboratory of Coordination Chemistry; School of Chemistry and Chemical Engineering; Nanjing University; Nanjing 210093 China
| | - Lei Yu
- School of Chemistry and Chemical Engineering; Yangzhou University; Yangzhou 225002 China
| | - Shaolin Zhu
- State Key Laboratory of Coordination Chemistry; School of Chemistry and Chemical Engineering; Nanjing University; Nanjing 210093 China
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44
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Chen F, Zhang Y, Yu L, Zhu S. Enantioselective NiH/Pmrox-Catalyzed 1,2-Reduction of α,β-Unsaturated Ketones. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201610990] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Fenglin Chen
- State Key Laboratory of Coordination Chemistry; School of Chemistry and Chemical Engineering; Nanjing University; Nanjing 210093 China
| | - Yao Zhang
- State Key Laboratory of Coordination Chemistry; School of Chemistry and Chemical Engineering; Nanjing University; Nanjing 210093 China
| | - Lei Yu
- School of Chemistry and Chemical Engineering; Yangzhou University; Yangzhou 225002 China
| | - Shaolin Zhu
- State Key Laboratory of Coordination Chemistry; School of Chemistry and Chemical Engineering; Nanjing University; Nanjing 210093 China
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45
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Luo Q, Dai Z, Cong H, Li R, Peng T, Zhang J. Oxidant-free synthesis of benzimidazoles from alcohols and aromatic diamines catalysed by new Ru(ii)-PNS(O) pincer complexes. Dalton Trans 2017; 46:15012-15022. [DOI: 10.1039/c7dt02584j] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
A greener method for synthesizing 2-substituted benzimidazole through the acceptorless dehydrogenative condensation of alcohols and ortho-arylenediamine is developed.
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Affiliation(s)
- Qi Luo
- College of Chemistry and Molecular Sciences
- Wuhan University
- Wuhan 430072
- P. R. China
| | - Zengjin Dai
- College of Chemistry and Molecular Sciences
- Wuhan University
- Wuhan 430072
- P. R. China
| | - Hengjiang Cong
- College of Chemistry and Molecular Sciences
- Wuhan University
- Wuhan 430072
- P. R. China
| | - Renjie Li
- College of Chemistry and Molecular Sciences
- Wuhan University
- Wuhan 430072
- P. R. China
| | - Tianyou Peng
- College of Chemistry and Molecular Sciences
- Wuhan University
- Wuhan 430072
- P. R. China
| | - Jing Zhang
- College of Chemistry and Molecular Sciences
- Wuhan University
- Wuhan 430072
- P. R. China
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46
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Schneck F, Finger M, Tromp M, Schneider S. Chemical Non-Innocence of an Aliphatic PNP Pincer Ligand. Chemistry 2016; 23:33-37. [DOI: 10.1002/chem.201604407] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2016] [Indexed: 11/06/2022]
Affiliation(s)
- Felix Schneck
- Institut für Anorganische Chemie; Georg-August-Universität; Tammannstrasse 1 37077 Göttingen Germany
| | - Markus Finger
- Institut für Anorganische Chemie; Georg-August-Universität; Tammannstrasse 1 37077 Göttingen Germany
| | - Moniek Tromp
- University of Amsterdam; Van't Hoff Institute for Molecular Sciences, Sustainable Chemistry; Science Park 904 1098 XH Amsterdam The Netherlands
| | - Sven Schneider
- Institut für Anorganische Chemie; Georg-August-Universität; Tammannstrasse 1 37077 Göttingen Germany
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47
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Alberico E, Lennox AJJ, Vogt LK, Jiao H, Baumann W, Drexler HJ, Nielsen M, Spannenberg A, Checinski MP, Junge H, Beller M. Unravelling the Mechanism of Basic Aqueous Methanol Dehydrogenation Catalyzed by Ru-PNP Pincer Complexes. J Am Chem Soc 2016; 138:14890-14904. [PMID: 27759392 DOI: 10.1021/jacs.6b05692] [Citation(s) in RCA: 120] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Ruthenium PNP complex 1a (RuH(CO)Cl(HN(C2H4Pi-Pr2)2)) represents a state-of-the-art catalyst for low-temperature (<100 °C) aqueous methanol dehydrogenation to H2 and CO2. Herein, we describe an investigation that combines experiment, spectroscopy, and theory to provide a mechanistic rationale for this process. During catalysis, the presence of two anionic resting states was revealed, Ru-dihydride (3-) and Ru-monohydride (4-) that are deprotonated at nitrogen in the pincer ligand backbone. DFT calculations showed that O- and CH- coordination modes of methoxide to ruthenium compete, and form complexes 4- and 3-, respectively. Not only does the reaction rate increase with increasing KOH, but the ratio of 3-/4- increases, demonstrating that the "inner-sphere" C-H cleavage, via C-H coordination of methoxide to Ru, is promoted by base. Protonation of 3- liberates H2 gas and formaldehyde, the latter of which is rapidly consumed by KOH to give the corresponding gem-diolate and provides the overall driving force for the reaction. Full MeOH reforming is achieved through the corresponding steps that start from the gem-diolate and formate. Theoretical studies into the mechanism of the catalyst Me-1a (N-methylated 1a) revealed that C-H coordination to Ru sets-up C-H cleavage and hydride delivery; a process that is also promoted by base, as observed experimentally. However, in this case, Ru-dihydride Me-3 is much more stable to protonation and can even be observed under neutral conditions. The greater stability of Me-3 rationalizes the lower rates of Me-1a compared to 1a, and also explains why the reaction rate then drops with increasing KOH concentration.
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Affiliation(s)
- Elisabetta Alberico
- Leibniz Institute for Catalysis, University of Rostock , Albert Einstein-Straße 29a, 18059 Rostock, Germany.,Istituto di Chimica Biomolecolare, Consiglio Nazionale delle Ricerche , tr. La Crucca 3, 07100 Sassari, Italy
| | - Alastair J J Lennox
- Leibniz Institute for Catalysis, University of Rostock , Albert Einstein-Straße 29a, 18059 Rostock, Germany
| | - Lydia K Vogt
- Leibniz Institute for Catalysis, University of Rostock , Albert Einstein-Straße 29a, 18059 Rostock, Germany
| | - Haijun Jiao
- Leibniz Institute for Catalysis, University of Rostock , Albert Einstein-Straße 29a, 18059 Rostock, Germany
| | - Wolfgang Baumann
- Leibniz Institute for Catalysis, University of Rostock , Albert Einstein-Straße 29a, 18059 Rostock, Germany
| | - Hans-Joachim Drexler
- Leibniz Institute for Catalysis, University of Rostock , Albert Einstein-Straße 29a, 18059 Rostock, Germany
| | - Martin Nielsen
- Centre for Catalysis and Sustainable Chemistry, Department of Chemistry, Technical University of Denmark , Kemitorvet 207, 2800 Kgs. Lyngby, Denmark
| | - Anke Spannenberg
- Leibniz Institute for Catalysis, University of Rostock , Albert Einstein-Straße 29a, 18059 Rostock, Germany
| | | | - Henrik Junge
- Leibniz Institute for Catalysis, University of Rostock , Albert Einstein-Straße 29a, 18059 Rostock, Germany
| | - Matthias Beller
- Leibniz Institute for Catalysis, University of Rostock , Albert Einstein-Straße 29a, 18059 Rostock, Germany
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48
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Yang P, Lim LH, Chuanprasit P, Hirao H, Zhou JS. Nickel-Catalyzed Enantioselective Reductive Amination of Ketones with Both Arylamines and Benzhydrazide. Angew Chem Int Ed Engl 2016; 55:12083-7. [DOI: 10.1002/anie.201606821] [Citation(s) in RCA: 80] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2016] [Indexed: 01/01/2023]
Affiliation(s)
- Peng Yang
- Division of Chemistry and Biological Chemistry; School of Physical and Mathematical Sciences; Nanyang Technological University; 21 Nanyang Link Singapore 637371 Singapore
| | - Li Hui Lim
- Division of Chemistry and Biological Chemistry; School of Physical and Mathematical Sciences; Nanyang Technological University; 21 Nanyang Link Singapore 637371 Singapore
| | - Pratanphorn Chuanprasit
- Division of Chemistry and Biological Chemistry; School of Physical and Mathematical Sciences; Nanyang Technological University; 21 Nanyang Link Singapore 637371 Singapore
| | - Hajime Hirao
- Division of Chemistry and Biological Chemistry; School of Physical and Mathematical Sciences; Nanyang Technological University; 21 Nanyang Link Singapore 637371 Singapore
| | - Jianrong Steve Zhou
- Division of Chemistry and Biological Chemistry; School of Physical and Mathematical Sciences; Nanyang Technological University; 21 Nanyang Link Singapore 637371 Singapore
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49
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Yang P, Lim LH, Chuanprasit P, Hirao H, Zhou JS. Nickel-Catalyzed Enantioselective Reductive Amination of Ketones with Both Arylamines and Benzhydrazide. Angew Chem Int Ed Engl 2016. [DOI: 10.1002/ange.201606821] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- Peng Yang
- Division of Chemistry and Biological Chemistry; School of Physical and Mathematical Sciences; Nanyang Technological University; 21 Nanyang Link Singapore 637371 Singapore
| | - Li Hui Lim
- Division of Chemistry and Biological Chemistry; School of Physical and Mathematical Sciences; Nanyang Technological University; 21 Nanyang Link Singapore 637371 Singapore
| | - Pratanphorn Chuanprasit
- Division of Chemistry and Biological Chemistry; School of Physical and Mathematical Sciences; Nanyang Technological University; 21 Nanyang Link Singapore 637371 Singapore
| | - Hajime Hirao
- Division of Chemistry and Biological Chemistry; School of Physical and Mathematical Sciences; Nanyang Technological University; 21 Nanyang Link Singapore 637371 Singapore
| | - Jianrong Steve Zhou
- Division of Chemistry and Biological Chemistry; School of Physical and Mathematical Sciences; Nanyang Technological University; 21 Nanyang Link Singapore 637371 Singapore
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50
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Affiliation(s)
- Nathan A. Eberhardt
- Department
of Chemistry, University of Cincinnati, P.O. Box 210172, Cincinnati, Ohio 45221-0172, United States
| | - Hairong Guan
- Department
of Chemistry, University of Cincinnati, P.O. Box 210172, Cincinnati, Ohio 45221-0172, United States
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