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Gulyaeva ES, Osipova ES, Kovalenko SA, Filippov OA, Belkova NV, Vendier L, Canac Y, Shubina ES, Valyaev DA. Two active species from a single metal halide precursor: a case study of highly productive Mn-catalyzed dehydrogenation of amine-boranes via intermolecular bimetallic cooperation. Chem Sci 2024; 15:1409-1417. [PMID: 38274083 PMCID: PMC10806649 DOI: 10.1039/d3sc05356c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2023] [Accepted: 12/06/2023] [Indexed: 01/27/2024] Open
Abstract
Metal-metal cooperation for inert bond activation is a ubiquitous concept in coordination chemistry and catalysis. While the great majority of such transformations proceed via intramolecular mode in binuclear complexes, to date only a few examples of intermolecular small molecule activation using usually bimetallic frustrated Lewis pairs (Mδ+⋯M'δ-) have been reported. We introduce herein an alternative approach for the intermolecular bimetallic cooperativity observed in the catalytic dehydrogenation of amine-boranes, in which the concomitant activation of N-H and B-H bonds of the substrate via the synergetic action of Lewis acidic (M+) and basic hydride (M-H) metal species derived from the same mononuclear complex (M-Br). It was also demonstrated that this system generated in situ from the air-stable Mn(i) complex fac-[(CO)3(bis(NHC))MnBr] and NaBPh4 shows high activity for H2 production from several substrates (Me2NHBH3, tBuNH2BH3, MeNH2BH3, NH3BH3) at low catalyst loading (0.1% to 50 ppm), providing outstanding efficiency for Me2NHBH3 (TON up to 18 200) that is largely superior to all known 3d-, s-, p-, f-block metal derivatives and frustrated Lewis pairs (FLPs). These results represent a step forward towards more extensive use of intermolecular bimetallic cooperation concepts in modern homogeneous catalysis.
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Affiliation(s)
- Ekaterina S Gulyaeva
- LCC-CNRS, Université de Toulouse, CNRS, UPS 205 Route de Narbonne 31077 Toulouse Cedex 4 France
- A. N. Nesmeyanov Institute of Organoelement Compounds (INEOS), Russian Academy of Sciences 28/1 Vavilov Str., GSP-1, B-334 Moscow 119334 Russia
| | - Elena S Osipova
- A. N. Nesmeyanov Institute of Organoelement Compounds (INEOS), Russian Academy of Sciences 28/1 Vavilov Str., GSP-1, B-334 Moscow 119334 Russia
| | - Sergey A Kovalenko
- A. N. Nesmeyanov Institute of Organoelement Compounds (INEOS), Russian Academy of Sciences 28/1 Vavilov Str., GSP-1, B-334 Moscow 119334 Russia
| | - Oleg A Filippov
- A. N. Nesmeyanov Institute of Organoelement Compounds (INEOS), Russian Academy of Sciences 28/1 Vavilov Str., GSP-1, B-334 Moscow 119334 Russia
| | - Natalia V Belkova
- A. N. Nesmeyanov Institute of Organoelement Compounds (INEOS), Russian Academy of Sciences 28/1 Vavilov Str., GSP-1, B-334 Moscow 119334 Russia
| | - Laure Vendier
- LCC-CNRS, Université de Toulouse, CNRS, UPS 205 Route de Narbonne 31077 Toulouse Cedex 4 France
| | - Yves Canac
- LCC-CNRS, Université de Toulouse, CNRS, UPS 205 Route de Narbonne 31077 Toulouse Cedex 4 France
| | - Elena S Shubina
- A. N. Nesmeyanov Institute of Organoelement Compounds (INEOS), Russian Academy of Sciences 28/1 Vavilov Str., GSP-1, B-334 Moscow 119334 Russia
| | - Dmitry A Valyaev
- LCC-CNRS, Université de Toulouse, CNRS, UPS 205 Route de Narbonne 31077 Toulouse Cedex 4 France
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Cross MJ, Brodie CN, Crivoi DG, Goodall JC, Ryan DE, Martínez‐Martínez AJ, Johnson A, Weller AS. Dehydropolymerization of Amine-Boranes using Bis(imino)pyridine Rhodium Pre-Catalysis: σ-Amine-Borane Complexes, Nanoparticles, and Low Residual-Metal BN-Polymers that can be Chemically Repurposed. Chemistry 2023; 29:e202302110. [PMID: 37530441 PMCID: PMC10947130 DOI: 10.1002/chem.202302110] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2023] [Revised: 07/31/2023] [Accepted: 08/02/2023] [Indexed: 08/03/2023]
Abstract
The sigma amine-borane complexes [Rh(L1)(η2 :η2 -H3 B⋅NRH2 )][OTf] (L1=2,6-bis-[1-(2,6-diisopropylphenylimino)ethyl]pyridine, R=Me, Et, n Pr) are described, alongside [Rh(L1)(NMeH2 )][OTf]. Using R=Me as a pre-catalyst (1 mol %) the dehydropolymerization of H3 B ⋅ NMeH2 gives [H2 BNMeH]n selectively. Added NMeH2 , or the direct use of [Rh(L1)(NMeH2 )][OTf], is required for initiation of catalysis, which is suggested to operate through the formation of a neutral hydride complex, Rh(L1)H. The formation of small (1-5 nm) nanoparticles is observed at the end of catalysis, but studies are ambiguous as to whether the catalysis is solely nanoparticle promoted or if there is a molecular homogeneous component. [Rh(L1)(NMeH2 )][OTf] is shown to operate at 0.025 mol % loadings on a 2 g scale of H3 B ⋅ NMeH2 to give polyaminoborane [H2 BNMeH]n [Mn =30,900 g/mol, Ð=1.8] that can be purified to a low residual [Rh] (6 μg/g). Addition of Na[N(SiMe3 )2 ] to [H2 BNMeH]n results in selective depolymerization to form the eee-isomer of N,N,N-trimethylcyclotriborazane [H2 BNMeH]3 : the chemical repurposing of a main-group polymer.
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Affiliation(s)
| | | | - Dana G. Crivoi
- Department of ChemistryUniversity of OxfordOxfordOX1 3TAUK
| | | | - David E. Ryan
- Department of ChemistryUniversity of YorkYorkYO10 5DDUK
- Department of ChemistryUniversity of OxfordOxfordOX1 3TAUK
| | - Antonio J. Martínez‐Martínez
- Department of ChemistryUniversity of OxfordOxfordOX1 3TAUK
- Supramolecular Organometallic and Main Group Chemistry Laboratory CIQSO-Center for Research in Sustainable Chemistry and Department of ChemistryUniversity of HuelvaCampus El Carmen21007HuelvaSpain
| | - Alice Johnson
- Department of ChemistryUniversity of OxfordOxfordOX1 3TAUK
- Department of Biosciences and ChemistrySheffield Hallam UniversityHoward StSheffieldS1 1WBUK
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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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Peng C, Liu W, Wang Y. Mechanistic insights into H 3B·NMeH 2 dehydrogenation by Co-based complexes: a DFT perspective. NEW J CHEM 2023. [DOI: 10.1039/d2nj06155d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/17/2023]
Abstract
Mechanistic insights into Co-catalyzed H3B·NMeH2 dehydrogenation and polyaminoborane formation are carefully investigated using density functional theory.
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Affiliation(s)
- Cheng Peng
- College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, P. R. China
| | - Wei Liu
- College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, P. R. China
| | - Yong Wang
- College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, P. R. China
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Vasanthakumar P, Sindhuja D, Senthil Raja D, Lin CH, Karvembu R. Iron and chromium MOFs as sustainable catalysts for transfer hydrogenation of carbonyl compounds and biomass conversions. NEW J CHEM 2020. [DOI: 10.1039/d0nj00552e] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Fe and Cr based MOFs (MIL-88B) act as efficient and reusable catalysts for transfer hydrogenation of carbonyl compounds including bio-derived substrates.
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Affiliation(s)
| | | | | | - Chia-Her Lin
- Department of Chemistry
- Chung Yuan Christian University
- Chung Li
- Taoyuan 32023
- Taiwan
| | - Ramasamy Karvembu
- Department of Chemistry
- National Institute of Technology
- Tiruchirappalli 620015
- India
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Yempally V, Moncho S, Wang Y, Kyran SJ, Fan WY, Brothers EN, Darensbourg DJ, Bengali AA. Thermal Dehydrogenation of Dimethylamine Borane Catalyzed by a Bifunctional Rhenium Complex. Organometallics 2019. [DOI: 10.1021/acs.organomet.9b00115] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
| | - Salvador Moncho
- Department of Chemistry, Texas A&M University at Qatar, Doha, Qatar
| | - Yanyan Wang
- Department of Chemistry, Texas A&M University, College Station, Texas 77843, United States
| | - Samuel J. Kyran
- Department of Chemistry, Texas A&M University, College Station, Texas 77843, United States
| | - Wai Yip Fan
- Department of Chemistry, National University of Singapore, Singapore 117543
| | | | - Donald J. Darensbourg
- Department of Chemistry, Texas A&M University, College Station, Texas 77843, United States
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Wagner CL, Tao L, Fettinger JC, Britt RD, Power PP. Two-Coordinate, Late First-Row Transition Metal Amido Derivatives of the Bulky Ligand -N(SiPri3)Dipp (Dipp = 2,6-diisopropylphenyl): Effects of the Ligand on the Stability of Two-Coordinate Copper(II) Complexes. Inorg Chem 2019; 58:8793-8799. [DOI: 10.1021/acs.inorgchem.9b01159] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Affiliation(s)
- Clifton L. Wagner
- Chemistry Department, University of California, Davis, One Shields Avenue, Davis, California 95616, United States
| | - Lizhi Tao
- Chemistry Department, University of California, Davis, One Shields Avenue, Davis, California 95616, United States
| | - James C. Fettinger
- Chemistry Department, University of California, Davis, One Shields Avenue, Davis, California 95616, United States
| | - R. David Britt
- Chemistry Department, University of California, Davis, One Shields Avenue, Davis, California 95616, United States
| | - Philip P. Power
- Chemistry Department, University of California, Davis, One Shields Avenue, Davis, California 95616, United States
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Ried ACA, Taylor LJ, Geer AM, Williams HEL, Lewis W, Blake AJ, Kays DL. A Highly Active Bidentate Magnesium Catalyst for Amine-Borane Dehydrocoupling: Kinetic and Mechanistic Studies. Chemistry 2019; 25:6840-6846. [PMID: 30875128 PMCID: PMC6563444 DOI: 10.1002/chem.201901197] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2019] [Indexed: 11/06/2022]
Abstract
A magnesium complex (1) featuring a bidentate aminopyridinato ligand is a remarkably selective catalyst for the dehydrocoupling of amine-boranes. This reaction proceeds to completion with low catalyst loadings (1 mol %) under mild conditions (60 °C), exceeding previously reported s-block systems in terms of selectivity, rate, and turnover number (TON). Mechanistic studies by in situ NMR analysis reveals the reaction to be first order in both catalyst and substrate. A reaction mechanism is proposed to account for these findings, with the high TON of the catalyst attributed to the bidentate nature of the ligand, which allows for reversible deprotonation of the substrate and regeneration of 1 as a stable resting state.
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Affiliation(s)
| | - Laurence J. Taylor
- School of ChemistryUniversity of NottinghamUniversity ParkNottinghamNG7 2RDUK
| | - Ana M. Geer
- School of ChemistryUniversity of NottinghamUniversity ParkNottinghamNG7 2RDUK
- Current address: Department of ChemistryUniversity of VirginiaCharlottesvilleVirginia22904USA
| | - Huw E. L. Williams
- Centre for Biomolecular SciencesUniversity of NottinghamUniversity ParkNottinghamNG7 2RDUK
| | - William Lewis
- School of ChemistryThe University of Sydney, F11Eastern AveSydneyNSW2006Australia
| | - Alexander J. Blake
- School of ChemistryUniversity of NottinghamUniversity ParkNottinghamNG7 2RDUK
| | - Deborah L. Kays
- School of ChemistryUniversity of NottinghamUniversity ParkNottinghamNG7 2RDUK
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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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Maier TM, Sandl S, Shenderovich IG, Jacobi von Wangelin A, Weigand JJ, Wolf R. Amine-Borane Dehydrogenation and Transfer Hydrogenation Catalyzed by α-Diimine Cobaltates. Chemistry 2018; 25:238-245. [PMID: 30378191 DOI: 10.1002/chem.201804811] [Citation(s) in RCA: 45] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2018] [Indexed: 11/07/2022]
Abstract
Anionic α-diimine cobalt complexes, such as [K(thf)1.5 {(Dipp BIAN)Co(η4 -cod)}] (1; Dipp=2,6-diisopropylphenyl, cod=1,5-cyclooctadiene), catalyze the dehydrogenation of several amine-boranes. Based on the excellent catalytic properties, an especially effective transfer hydrogenation protocol for challenging olefins, imines, and N-heteroarenes was developed. NH3 BH3 was used as a dihydrogen surrogate, which transferred up to two equivalents of H2 per NH3 BH3 . Detailed spectroscopic and mechanistic studies are presented, which document the rate determination by acidic protons in the amine-borane.
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Affiliation(s)
- Thomas M Maier
- Institute of Inorganic Chemistry, University of Regensburg, 93040, Regensburg, Germany
| | - Sebastian Sandl
- University of Regensburg, Institute of Organic Chemistry, 93040, Regensburg, Germany.,Current address: University of Hamburg, Department of Chemistry, 20146, Hamburg, Germany
| | - Ilya G Shenderovich
- University of Regensburg, Institute of Organic Chemistry, 93040, Regensburg, Germany
| | - Axel Jacobi von Wangelin
- University of Regensburg, Institute of Organic Chemistry, 93040, Regensburg, Germany.,Current address: University of Hamburg, Department of Chemistry, 20146, Hamburg, Germany
| | - Jan J Weigand
- TU Dresden, Faculty of Chemistry and Food Chemistry, Chair of Inorganic Molecular Chemistry, 01062, Dresden, Germany
| | - Robert Wolf
- Institute of Inorganic Chemistry, University of Regensburg, 93040, Regensburg, Germany
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