1
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Le Moigne L, Posenato T, Gajan D, Lesage de la Haye J, Raynaud J, Lacôte E. Catalyst-Free Transfer Hydrogenation from Amine-Borane Small Oligomers. Chemistry 2024; 30:e202300145. [PMID: 37814903 DOI: 10.1002/chem.202300145] [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: 01/16/2023] [Revised: 10/09/2023] [Accepted: 10/10/2023] [Indexed: 10/11/2023]
Abstract
Amine-borane dimers and oligomers with varied steric and electronic profiles were prepared via capping agent-controlled AA/BB polycondensations. They were used for transfer hydrogenations to aldehydes, ketones, imines as well as electron-poor alkene/alkyne moieties. The amine-borane Lewis-paired oligomers and the congested bis(amine-borane)s provided the highest yields. This was likely helped by facilitated dissociation (oligomers) or H-bond assistance. In the case of the oligomers, the second equivalent of H2 present was also engaged in the reaction. Solid-state NMR characterization provides evidence that the boron-containing materials obtained after transfer dehydrogenation are highly similar to those obtained from thermal dehydrogenation. The oligomers bridge the gap between simple amine-borane molecular reductants and the poly-amine-boranes and provide a full picture of the reactivity changes at the different scales.
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Affiliation(s)
- Louis Le Moigne
- Univ Lyon, Université Claude Bernard Lyon 1, CNRS, CNES, ArianeGroup, LHCEP, UMR 5278, Bât. Raulin, 2 rue Victor Grignard, 69622, Villeurbanne, France
| | - Tommaso Posenato
- Univ Lyon, Université Claude Bernard Lyon 1, CNRS, CPE Lyon, CP2 M -, UMR 5128, PolyCatMat, 43 Bd du 11 novembre 1918, 69616, Villeurbanne, France
| | - David Gajan
- Univ Lyon, CNRS, ENS de Lyon, Université Claude Bernard Lyon 1, Centre de RMN à Très Hauts Champs de Lyon, UMR5082, 5 Rue de la Doua, 69100, Villeurbanne, France
| | - Jennifer Lesage de la Haye
- Univ Lyon, Université Claude Bernard Lyon 1, CNRS, CNES, ArianeGroup, LHCEP, UMR 5278, Bât. Raulin, 2 rue Victor Grignard, 69622, Villeurbanne, France
| | - Jean Raynaud
- Univ Lyon, Université Claude Bernard Lyon 1, CNRS, CPE Lyon, CP2 M -, UMR 5128, PolyCatMat, 43 Bd du 11 novembre 1918, 69616, Villeurbanne, France
| | - Emmanuel Lacôte
- Univ Lyon, Université Claude Bernard Lyon 1, CNRS, CNES, ArianeGroup, LHCEP, UMR 5278, Bât. Raulin, 2 rue Victor Grignard, 69622, Villeurbanne, France
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2
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Peñas-Sanjuán A, Chica-Armenteros JJ, Cruz-Sánchez R, García-Gallarín C, Melguizo M. Sequential Nitrile Amidination-Reduction as a Straightforward Procedure to Selective Linear Polyamine Preparation. J Org Chem 2023; 88:17274-17283. [PMID: 38006401 PMCID: PMC10729039 DOI: 10.1021/acs.joc.3c02128] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2023] [Revised: 11/10/2023] [Accepted: 11/15/2023] [Indexed: 11/27/2023]
Abstract
A straightforward strategy toward the efficient synthesis of linear saturated polyamines containing 1,2-diaminoethane and/or 1,3-diaminopropane fragments has been developed. The procedure is based on the chemistry of 5- and 6-membered cyclic amidines, including their efficient synthesis from nitrile precursors and subsequent chemoselective reductive-opening by a borane-dimethyl sulfide complex. This two-step procedure provides a robust methodology for the synthesis of linear polyamine skeletons under nonharsh conditions and free of using selective protective groups or tedious workups.
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Affiliation(s)
- Antonio Peñas-Sanjuán
- Departamento de Química Inorgánica
y Orgánica. Facultad de Ciencias Experimentales, Universidad de Jaén, 23071 Jaén, Spain
| | - Jose J. Chica-Armenteros
- Departamento de Química Inorgánica
y Orgánica. Facultad de Ciencias Experimentales, Universidad de Jaén, 23071 Jaén, Spain
| | - Rubén Cruz-Sánchez
- Departamento de Química Inorgánica
y Orgánica. Facultad de Ciencias Experimentales, Universidad de Jaén, 23071 Jaén, Spain
| | - Celeste García-Gallarín
- Departamento de Química Inorgánica
y Orgánica. Facultad de Ciencias Experimentales, Universidad de Jaén, 23071 Jaén, Spain
| | - Manuel Melguizo
- Departamento de Química Inorgánica
y Orgánica. Facultad de Ciencias Experimentales, Universidad de Jaén, 23071 Jaén, Spain
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3
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Braese J, Lehnfeld F, Annibale VT, Oswald T, Beckhaus R, Manners I, Scheer M. Titanium-Catalyzed Polymerization of a Lewis Base-Stabilized Phosphinoborane. Chemistry 2023; 29:e202301741. [PMID: 37498679 DOI: 10.1002/chem.202301741] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2023] [Revised: 07/21/2023] [Accepted: 07/27/2023] [Indexed: 07/29/2023]
Abstract
The reaction of the Lewis base-stabilized phosphinoborane monomer tBuHPBH2 NMe3 (2 a) with catalytic amounts of bis(η5 :η1 -adamantylidenepentafulvene)titanium (1) provides a convenient new route to the polyphosphinoborane [tBuPH-BH2 ]n (3 a). This method offers access to high molar mass materials under mild conditions and with short reaction times (20 °C, 1 h in toluene). It represents an unprecedented example of a transition metal-mediated polymerization of a Lewis base-stabilized Group 13/15 compound. Preliminary studies of the substrate scope and a potential mechanism are reported.
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Affiliation(s)
- Jens Braese
- Universität Regensburg, Institut für Anorganische Chemie, 94053, Regensburg, Germany
| | - Felix Lehnfeld
- Universität Regensburg, Institut für Anorganische Chemie, 94053, Regensburg, Germany
| | - Vincent T Annibale
- University of Victoria, Department of Chemistry, 3800 Finnerty Road, Victoria, BC V8P 5C2, Canada
| | - Tim Oswald
- Carl von Ossietzky Universität Oldenburg, Institut für Chemie Carl-von-Ossietzky, Straße 9-11, 26129, Oldenburg, Germany
| | - Rüdiger Beckhaus
- Carl von Ossietzky Universität Oldenburg, Institut für Chemie Carl-von-Ossietzky, Straße 9-11, 26129, Oldenburg, Germany
| | - Ian Manners
- University of Victoria, Department of Chemistry, 3800 Finnerty Road, Victoria, BC V8P 5C2, Canada
| | - Manfred Scheer
- Universität Regensburg, Institut für Anorganische Chemie, 94053, Regensburg, Germany
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4
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Ramachandran PV, Hamann HJ, Mishra S. Aminoboranes via Tandem Iodination/Dehydroiodination for One-Pot Borylation. ACS OMEGA 2022; 7:14377-14389. [PMID: 35573212 PMCID: PMC9089688 DOI: 10.1021/acsomega.2c01461] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/10/2022] [Accepted: 03/31/2022] [Indexed: 06/15/2023]
Abstract
A rapid synthesis of aminoboranes from amine-boranes utilizing an iodination/dehydroiodination sequence is described. Monomeric aminoboranes are generated exclusively from several substrate adducts, following an E2-type elimination, with the added base playing a critical role in monomer vs dimer formation. Diisopropylaminoborane formed using this methodology has been applied to a one-pot palladium-catalyzed conversion of iodo- and bromoarenes to the corresponding boronates. Additionally, modification of the workup allows for isolation of the boronic acid and recovery of the utilized amine.
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Affiliation(s)
| | - Henry J. Hamann
- Department of Chemistry, Purdue University, 560 Oval Drive, West Lafayette, Indiana 47907, United
States
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5
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Kumar A, Daw P, Milstein D. Homogeneous Catalysis for Sustainable Energy: Hydrogen and Methanol Economies, Fuels from Biomass, and Related Topics. Chem Rev 2021; 122:385-441. [PMID: 34727501 PMCID: PMC8759071 DOI: 10.1021/acs.chemrev.1c00412] [Citation(s) in RCA: 97] [Impact Index Per Article: 32.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
![]()
As the world pledges
to significantly cut carbon emissions, the
demand for sustainable and clean energy has now become more important
than ever. This includes both production and storage of energy carriers,
a majority of which involve catalytic reactions. This article reviews
recent developments of homogeneous catalysts in emerging applications
of sustainable energy. The most important focus has been on hydrogen
storage as several efficient homogeneous catalysts have been reported
recently for (de)hydrogenative transformations promising to the hydrogen
economy. Another direction that has been extensively covered in this
review is that of the methanol economy. Homogeneous catalysts investigated
for the production of methanol from CO2, CO, and HCOOH
have been discussed in detail. Moreover, catalytic processes for the
production of conventional fuels (higher alkanes such as diesel, wax)
from biomass or lower alkanes have also been discussed. A section
has also been dedicated to the production of ethylene glycol from
CO and H2 using homogeneous catalysts. Well-defined transition
metal complexes, in particular, pincer complexes, have been discussed
in more detail due to their high activity and well-studied mechanisms.
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Affiliation(s)
- Amit Kumar
- School of Chemistry, University of St. Andrews, North Haugh, Fife, U.K., KY16 9ST
| | - Prosenjit Daw
- Department of Chemical Sciences, Indian Institute of Science Education and Research Berhampur, Govt. ITI (transit Campus), Berhampur 760010, India
| | - David Milstein
- Department of Molecular Chemistry and Materials Science, Weizmann Institute of Science, Rehovot 76100, Israel
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6
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Lau S, Gasperini D, Webster RL. Amine-Boranes as Transfer Hydrogenation and Hydrogenation Reagents: A Mechanistic Perspective. Angew Chem Int Ed Engl 2021; 60:14272-14294. [PMID: 32935898 PMCID: PMC8248159 DOI: 10.1002/anie.202010835] [Citation(s) in RCA: 57] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2020] [Indexed: 11/10/2022]
Abstract
Transfer hydrogenation (TH) has historically been dominated by Meerwein-Ponndorf-Verley (MPV) reactions. However, with growing interest in amine-boranes, not least ammonia-borane (H3 N⋅BH3 ), as potential hydrogen storage materials, these compounds have also started to emerge as an alternative reagent in TH reactions. In this Review we discuss TH chemistry using H3 N⋅BH3 and their analogues (amine-boranes and metal amidoboranes) as sacrificial hydrogen donors. Three distinct pathways were considered: 1) classical TH, 2) nonclassical TH, and 3) hydrogenation. Simple experimental mechanistic probes can be employed to distinguish which pathway is operating and computational analysis can corroborate or discount mechanisms. We find that the pathway in operation can be perturbed by changing the temperature, solvent, amine-borane, or even the substrate used in the system, and subsequently assignment of the mechanism can become nontrivial.
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Affiliation(s)
- Samantha Lau
- Department of ChemistryUniversity of BathClaverton DownBathUK
| | | | - Ruth L. Webster
- Department of ChemistryUniversity of BathClaverton DownBathUK
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7
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Lau S, Gasperini D, Webster RL. Amine–Boranes as Transfer Hydrogenation and Hydrogenation Reagents: A Mechanistic Perspective. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202010835] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Affiliation(s)
- Samantha Lau
- Department of Chemistry University of Bath Claverton Down Bath UK
| | - Danila Gasperini
- Department of Chemistry University of Bath Claverton Down Bath UK
| | - Ruth L. Webster
- Department of Chemistry University of Bath Claverton Down Bath UK
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8
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Devillard M, De Albuquerque Pinheiro CA, Caytan E, Roiland C, Dinoi C, Del Rosal I, Alcaraz G. Uncatalyzed Formation of Polyaminoboranes from Diisopropylaminoborane and Primary Amines: a Kinetically Controlled Polymerization Reaction. Adv Synth Catal 2021. [DOI: 10.1002/adsc.202001458] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Marc Devillard
- Univ Rennes CNRS ISCR (Institut des Sciences Chimiques de Rennes) 35000 Rennes France
| | | | - Elsa Caytan
- Univ Rennes CNRS ISCR (Institut des Sciences Chimiques de Rennes) 35000 Rennes France
| | - Claire Roiland
- Univ Rennes CNRS ISCR (Institut des Sciences Chimiques de Rennes) 35000 Rennes France
| | - Chiara Dinoi
- LPCNO CNRS & INSA Universitć de Toulouse 135 avenue de Rangueil 31077 Toulouse France
| | - Iker Del Rosal
- LPCNO CNRS & INSA Universitć de Toulouse 135 avenue de Rangueil 31077 Toulouse France
| | - Gilles Alcaraz
- Univ Rennes CNRS ISCR (Institut des Sciences Chimiques de Rennes) 35000 Rennes France
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9
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Li H, Wang R, Kang J, Li S, Zhou AJ, Han DX, Guan HY, Austin DJ, Yue Y. Syntheses, formation mechanisms and structures of a series of linear diborazanes. CrystEngComm 2021. [DOI: 10.1039/d0ce01196g] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Both anti and gauche conformations are observed in the linear diborazanes, which are stabilized by inter- and intramolecular DHBs, respectively.
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Affiliation(s)
- Huizhen Li
- Center for Advanced Analytical Science
- School of Chemistry and Chemical Engineering
- Guangzhou University
- Guangzhou 510006
- P. R. China
| | - Ruirui Wang
- Henan Key Laboratory of Boron Chemistry and Advanced Energy Materials
- School of Chemistry and Chemical Engineering
- Henan Normal University
- Xinxiang
- China
| | - Jiaxin Kang
- Henan Key Laboratory of Boron Chemistry and Advanced Energy Materials
- School of Chemistry and Chemical Engineering
- Henan Normal University
- Xinxiang
- China
| | - Shujun Li
- Henan Key Laboratory of Boron Chemistry and Advanced Energy Materials
- School of Chemistry and Chemical Engineering
- Henan Normal University
- Xinxiang
- China
| | - Ai-Ju Zhou
- Center for Advanced Analytical Science
- School of Chemistry and Chemical Engineering
- Guangzhou University
- Guangzhou 510006
- P. R. China
| | - Dong-xue Han
- Center for Advanced Analytical Science
- School of Chemistry and Chemical Engineering
- Guangzhou University
- Guangzhou 510006
- P. R. China
| | - Hong-Yu Guan
- Center for Advanced Analytical Science
- School of Chemistry and Chemical Engineering
- Guangzhou University
- Guangzhou 510006
- P. R. China
| | | | - Yanfeng Yue
- Department of Chemistry
- Delaware State University
- Dover
- USA
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10
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Boom DHA, de Boed EJJ, Nicolas E, Nieger M, Ehlers AW, Jupp AR, Slootweg JC. Catalytic Dehydrogenation of Amine‐Boranes using Geminal Phosphino‐Boranes. Z Anorg Allg Chem 2020. [DOI: 10.1002/zaac.201900313] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Devin H. A. Boom
- Van ‘t Hoff Institute for Molecular Sciences (HIMS) University of Amsterdam 1090 GD Amsterdam The Netherlands
| | - Ewoud J. J. de Boed
- Van ‘t Hoff Institute for Molecular Sciences (HIMS) University of Amsterdam 1090 GD Amsterdam The Netherlands
| | - Emmanuel Nicolas
- Van ‘t Hoff Institute for Molecular Sciences (HIMS) University of Amsterdam 1090 GD Amsterdam The Netherlands
| | - Martin Nieger
- Department of Chemistry University of Helsinki 00014 Helsinki Finland
| | - Andreas W. Ehlers
- Van ‘t Hoff Institute for Molecular Sciences (HIMS) University of Amsterdam 1090 GD Amsterdam The Netherlands
- Department of Chemistry, Science Faculty University of Johannesburg Auckland Park Johannesburg South Africa
| | - Andrew R. Jupp
- Van ‘t Hoff Institute for Molecular Sciences (HIMS) University of Amsterdam 1090 GD Amsterdam The Netherlands
| | - J. Chris Slootweg
- Van ‘t Hoff Institute for Molecular Sciences (HIMS) University of Amsterdam 1090 GD Amsterdam The Netherlands
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11
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Boom DHA, Jupp AR, Slootweg JC. Dehydrogenation of Amine-Boranes Using p-Block Compounds. Chemistry 2019; 25:9133-9152. [PMID: 30964220 PMCID: PMC6771515 DOI: 10.1002/chem.201900679] [Citation(s) in RCA: 36] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2019] [Indexed: 01/11/2023]
Abstract
Amine-boranes have gained a lot of attention due to their potential as hydrogen storage materials and their capacity to act as precursors for transfer hydrogenation. Therefore, a lot of effort has gone into the development of suitable transition- and main-group metal catalysts for the dehydrogenation of amine-boranes. During the past decade, new systems started to emerge solely based on p-block elements that promote the dehydrogenation of amine-boranes through hydrogen-transfer reactions, polymerization initiation, and main-group catalysis. In this review, we highlight the development of these p-block based systems for stoichiometric and catalytic amine-borane dehydrogenation and discuss the underlying mechanisms.
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Affiliation(s)
- Devin H. A. Boom
- Van 't Hoff Institute for Molecular SciencesUniversity of AmsterdamScience Park 9041090 GDAmsterdamThe Netherlands
| | - Andrew R. Jupp
- Van 't Hoff Institute for Molecular SciencesUniversity of AmsterdamScience Park 9041090 GDAmsterdamThe Netherlands
| | - J. Chris Slootweg
- Van 't Hoff Institute for Molecular SciencesUniversity of AmsterdamScience Park 9041090 GDAmsterdamThe Netherlands
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12
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Dömling M, Arrowsmith M, Schmidt U, Werner L, Castro AC, Jiménez-Halla JOC, Bertermann R, Müssig J, Prieschl D, Braunschweig H. Spontaneous trans-Selective Transfer Hydrogenation of Apolar Boron-Boron Double Bonds. Angew Chem Int Ed Engl 2019; 58:9782-9786. [PMID: 31062910 DOI: 10.1002/anie.201902656] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2019] [Revised: 04/20/2019] [Indexed: 01/13/2023]
Abstract
The transfer hydrogenation of N-heterocyclic carbene (NHC)-supported diborenes with dimethylamine borane proceeds with high selectivity for the trans-1,2-dihydrodiboranes. DFT calculations, supported by kinetic studies and deuteration experiments, suggest a stepwise proton-first-hydride-second reaction mechanism via an intermediate μ-hydrodiboronium dimethylaminoborate ion pair.
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Affiliation(s)
- Michael Dömling
- Institut für Anorganische Chemie & the Institute for Sustainable Chemistry & Catalysis with Boron, Julius-Maximilians-Universität Würzburg, Am Hubland, 97074, Würzburg, Germany
| | - Merle Arrowsmith
- Institut für Anorganische Chemie & the Institute for Sustainable Chemistry & Catalysis with Boron, Julius-Maximilians-Universität Würzburg, Am Hubland, 97074, Würzburg, Germany
| | - Uwe Schmidt
- Institut für Anorganische Chemie & the Institute for Sustainable Chemistry & Catalysis with Boron, Julius-Maximilians-Universität Würzburg, Am Hubland, 97074, Würzburg, Germany
| | - Luis Werner
- Institut für Anorganische Chemie & the Institute for Sustainable Chemistry & Catalysis with Boron, Julius-Maximilians-Universität Würzburg, Am Hubland, 97074, Würzburg, Germany
| | - Abril C Castro
- Departamento de Química, División de Ciencias Naturales y Exactas, Universidad de Guanajuato, Noria Alta S/N, 36050, Guanajuato, Mexico
| | - J Oscar C Jiménez-Halla
- Departamento de Química, División de Ciencias Naturales y Exactas, Universidad de Guanajuato, Noria Alta S/N, 36050, Guanajuato, Mexico
| | - Rüdiger Bertermann
- Institut für Anorganische Chemie & the Institute for Sustainable Chemistry & Catalysis with Boron, Julius-Maximilians-Universität Würzburg, Am Hubland, 97074, Würzburg, Germany
| | - Jonas Müssig
- Institut für Anorganische Chemie & the Institute for Sustainable Chemistry & Catalysis with Boron, Julius-Maximilians-Universität Würzburg, Am Hubland, 97074, Würzburg, Germany
| | - Dominic Prieschl
- Institut für Anorganische Chemie & the Institute for Sustainable Chemistry & Catalysis with Boron, Julius-Maximilians-Universität Würzburg, Am Hubland, 97074, Würzburg, Germany
| | - Holger Braunschweig
- Institut für Anorganische Chemie & the Institute for Sustainable Chemistry & Catalysis with Boron, Julius-Maximilians-Universität Würzburg, Am Hubland, 97074, Würzburg, Germany
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13
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Dömling M, Arrowsmith M, Schmidt U, Werner L, Castro AC, Jiménez‐Halla JOC, Bertermann R, Müssig J, Prieschl D, Braunschweig H. Spontane
trans
‐selektive Transferhydrierung von unpolaren B=B‐Doppelbindungen. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201902656] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Affiliation(s)
- Michael Dömling
- Institut für Anorganische Chemie &, the Institute for Sustainable Chemistry & Catalysis with BoronJulius-Maximilians-Universität Würzburg Am Hubland 97074 Würzburg Deutschland
| | - Merle Arrowsmith
- Institut für Anorganische Chemie &, the Institute for Sustainable Chemistry & Catalysis with BoronJulius-Maximilians-Universität Würzburg Am Hubland 97074 Würzburg Deutschland
| | - Uwe Schmidt
- Institut für Anorganische Chemie &, the Institute for Sustainable Chemistry & Catalysis with BoronJulius-Maximilians-Universität Würzburg Am Hubland 97074 Würzburg Deutschland
| | - Luis Werner
- Institut für Anorganische Chemie &, the Institute for Sustainable Chemistry & Catalysis with BoronJulius-Maximilians-Universität Würzburg Am Hubland 97074 Würzburg Deutschland
| | - Abril C. Castro
- Departamento de QuímicaDivisión de Ciencias Naturales y ExactasUniversidad de Guanajuato Noria Alta S/N 36050 Guanajuato Mexiko
| | - J. Oscar C. Jiménez‐Halla
- Departamento de QuímicaDivisión de Ciencias Naturales y ExactasUniversidad de Guanajuato Noria Alta S/N 36050 Guanajuato Mexiko
| | - Rüdiger Bertermann
- Institut für Anorganische Chemie &, the Institute for Sustainable Chemistry & Catalysis with BoronJulius-Maximilians-Universität Würzburg Am Hubland 97074 Würzburg Deutschland
| | - Jonas Müssig
- Institut für Anorganische Chemie &, the Institute for Sustainable Chemistry & Catalysis with BoronJulius-Maximilians-Universität Würzburg Am Hubland 97074 Würzburg Deutschland
| | - Dominic Prieschl
- Institut für Anorganische Chemie &, the Institute for Sustainable Chemistry & Catalysis with BoronJulius-Maximilians-Universität Würzburg Am Hubland 97074 Würzburg Deutschland
| | - Holger Braunschweig
- Institut für Anorganische Chemie &, the Institute for Sustainable Chemistry & Catalysis with BoronJulius-Maximilians-Universität Würzburg Am Hubland 97074 Würzburg Deutschland
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14
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Colebatch AL, Weller AS. Amine-Borane Dehydropolymerization: Challenges and Opportunities. Chemistry 2019; 25:1379-1390. [PMID: 30338876 PMCID: PMC6391989 DOI: 10.1002/chem.201804592] [Citation(s) in RCA: 77] [Impact Index Per Article: 15.4] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2018] [Indexed: 11/23/2022]
Abstract
The dehydropolymerization of amine-boranes, exemplified as H2 RB⋅NR'H2 , to produce polyaminoboranes (HRBNR'H)n that are inorganic analogues of polyolefins with alternating main-chain B-N units, is an area with significant potential, stemming from both fundamental (mechanism, catalyst development, main-group hetero-cross-coupling) and technological (new polymeric materials) opportunities. This Concept article outlines recent advances in the field, covering catalyst development and performance, current mechanistic models, and alternative non-catalytic routes for polymer production. The substrate scope, polymer properties and applications of these exciting materials are also outlined. Challenges and opportunities in the field are suggested, as a way of providing focus for future investigations.
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Affiliation(s)
- Annie L. Colebatch
- Department of ChemistryUniversity of CambridgeLensfield RoadCambridgeCB2 1EWUK
- Department of ChemistryUniversity of OxfordMansfield RoadOxfordOX1 3TAUK
| | - Andrew S. Weller
- Department of ChemistryUniversity of OxfordMansfield RoadOxfordOX1 3TAUK
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15
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Trose M, Reiß M, Reiß F, Anke F, Spannenberg A, Boye S, Lederer A, Arndt P, Beweries T. Dehydropolymerisation of methylamine borane using a dinuclear 1,3-allenediyl bridged zirconocene complex. Dalton Trans 2018; 47:12858-12862. [PMID: 30156242 DOI: 10.1039/c8dt03311k] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The dinuclear zirconocene chloride complex 1 is a highly active precatalyst for the dehydropolymerisation of methylamine borane. Comparison with mononuclear Zr chlorides and related dinuclear complexes suggests that the nature of the bridging motif is essential for the unique reactivity of 1.
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Affiliation(s)
- M Trose
- Leibniz-Institut für Katalyse e.V. an der Universität Rostock, Albert-Einstein-Str. 29a, 18059 Rostock, Germany.
| | - M Reiß
- Leibniz-Institut für Katalyse e.V. an der Universität Rostock, Albert-Einstein-Str. 29a, 18059 Rostock, Germany.
| | - F Reiß
- Leibniz-Institut für Katalyse e.V. an der Universität Rostock, Albert-Einstein-Str. 29a, 18059 Rostock, Germany.
| | - F Anke
- Leibniz-Institut für Katalyse e.V. an der Universität Rostock, Albert-Einstein-Str. 29a, 18059 Rostock, Germany.
| | - A Spannenberg
- Leibniz-Institut für Katalyse e.V. an der Universität Rostock, Albert-Einstein-Str. 29a, 18059 Rostock, Germany.
| | - S Boye
- Leibniz-Institut für Polymerforschung Dresden, Hohe Str. 6, 01069 Dresden, Germany
| | - A Lederer
- Leibniz-Institut für Polymerforschung Dresden, Hohe Str. 6, 01069 Dresden, Germany and Technische Universität Dresden, 01062 Dresden, Germany
| | - P Arndt
- Leibniz-Institut für Katalyse e.V. an der Universität Rostock, Albert-Einstein-Str. 29a, 18059 Rostock, Germany.
| | - T Beweries
- Leibniz-Institut für Katalyse e.V. an der Universität Rostock, Albert-Einstein-Str. 29a, 18059 Rostock, Germany.
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16
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Winner L, Ewing WC, Geetharani K, Dellermann T, Jouppi B, Kupfer T, Schäfer M, Braunschweig H. Spontaner metallfreier Wasserstofftransfer zwischen Amminboranen und Iminoboranen. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201807435] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Lena Winner
- Institut für Anorganische Chemie und Institute for Sustainable Chemistry & Catalysis with Boron; Julius-Maximilians-Universität Würzburg; Am Hubland 97074 Würzburg Deutschland
| | - William C. Ewing
- Boron Specialties, LLC; 2301 Duss Ave., Box 35 Ambridge PA 15003 USA
| | - K. Geetharani
- Department of Inorganic and Physical Chemistry; Indian Institute of Science; Bangalore- 560012 Indien
| | - Theresa Dellermann
- Institut für Anorganische Chemie und Institute for Sustainable Chemistry & Catalysis with Boron; Julius-Maximilians-Universität Würzburg; Am Hubland 97074 Würzburg Deutschland
| | - Brian Jouppi
- Boron Specialties, LLC; 2301 Duss Ave., Box 35 Ambridge PA 15003 USA
| | - Thomas Kupfer
- Institut für Anorganische Chemie und Institute for Sustainable Chemistry & Catalysis with Boron; Julius-Maximilians-Universität Würzburg; Am Hubland 97074 Würzburg Deutschland
| | - Marius Schäfer
- Institut für Anorganische Chemie und Institute for Sustainable Chemistry & Catalysis with Boron; Julius-Maximilians-Universität Würzburg; Am Hubland 97074 Würzburg Deutschland
| | - Holger Braunschweig
- Institut für Anorganische Chemie und Institute for Sustainable Chemistry & Catalysis with Boron; Julius-Maximilians-Universität Würzburg; Am Hubland 97074 Würzburg Deutschland
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17
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Winner L, Ewing WC, Geetharani K, Dellermann T, Jouppi B, Kupfer T, Schäfer M, Braunschweig H. Spontaneous Metal-Free Transfer Hydrogenation of Iminoboranes with Ammonia Borane and Amine Boranes. Angew Chem Int Ed Engl 2018; 57:12275-12279. [DOI: 10.1002/anie.201807435] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2018] [Indexed: 11/07/2022]
Affiliation(s)
- Lena Winner
- Institut for Inorganic Chemistry and Institute for Sustainable Chemistry & Catalysis with Boron; Julius-Maximilians-Universität Würzburg; Am Hubland 97074 Würzburg Germany
| | - William C. Ewing
- Boron Specialties, LLC; 2301 Duss Ave., Box 35 Ambridge PA 15003 USA
| | - K. Geetharani
- Department of Inorganic and Physical Chemistry; Indian Institute of Science; Bangalore- 560012 India
| | - Theresa Dellermann
- Institut for Inorganic Chemistry and Institute for Sustainable Chemistry & Catalysis with Boron; Julius-Maximilians-Universität Würzburg; Am Hubland 97074 Würzburg Germany
| | - Brian Jouppi
- Boron Specialties, LLC; 2301 Duss Ave., Box 35 Ambridge PA 15003 USA
| | - Thomas Kupfer
- Institut for Inorganic Chemistry and Institute for Sustainable Chemistry & Catalysis with Boron; Julius-Maximilians-Universität Würzburg; Am Hubland 97074 Würzburg Germany
| | - Marius Schäfer
- Institut for Inorganic Chemistry and Institute for Sustainable Chemistry & Catalysis with Boron; Julius-Maximilians-Universität Würzburg; Am Hubland 97074 Würzburg Germany
| | - Holger Braunschweig
- Institut for Inorganic Chemistry and Institute for Sustainable Chemistry & Catalysis with Boron; Julius-Maximilians-Universität Würzburg; Am Hubland 97074 Würzburg Germany
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18
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Jurca T, Dellermann T, Stubbs NE, Resendiz-Lara DA, Whittell GR, Manners I. Step-growth titanium-catalysed dehydropolymerisation of amine-boranes. Chem Sci 2018; 9:3360-3366. [PMID: 29780466 PMCID: PMC5933219 DOI: 10.1039/c7sc05395a] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2017] [Accepted: 02/05/2018] [Indexed: 11/21/2022] Open
Abstract
Precatalysts active for the dehydropolymerisation of primary amine-boranes are generally based on mid or late transition metal. We have found that the activity of the precatalyst system formed from CpR2TiCl2 and 2nBuLi towards the dehydrogenation of the secondary amine-borane Me2NH·BH3, to yield the cyclic diborazane [Me2N-BH2]2, increases dramatically with increasing electron-donating character of the cyclopentadienyl rings (CpR). Application of the most active precatalyst system (CpR = η-C5Me5) to the primary amine-borane MeNH2·BH3 enabled the first synthesis of high molar mass poly(N-methylaminoborane), [MeNH-BH2] n , the BN analogue of polypropylene, by an early transition metal such as catalyst. Significantly, unlike other dehydropolymerization precatalysts for MeNH2·BH3 such as [Ir(POCOP)H2], skeletal nickel, and [Rh(COD)Cl]2, the Ti precatalyst system was also active towards a range of substrates including BzNH2·BH3 (Bz = benzyl) yielding high molar mass polymer. Moreover, in contrast to the late transition metal catalysed dehydropolymerisation of MeNH2·BH3 and also the Ziegler-Natta polymerisation of olefins, studies indicate that the Ti-catalyzed dehydropolymerization reactions proceed by a step-growth rather than a chain-growth mechanism.
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Affiliation(s)
- Titel Jurca
- School of Chemistry , University of Bristol , Cantock's Close , Bristol BS8 1TS , UK .
| | - Theresa Dellermann
- School of Chemistry , University of Bristol , Cantock's Close , Bristol BS8 1TS , UK .
| | - Naomi E Stubbs
- School of Chemistry , University of Bristol , Cantock's Close , Bristol BS8 1TS , UK .
| | - Diego A Resendiz-Lara
- School of Chemistry , University of Bristol , Cantock's Close , Bristol BS8 1TS , UK .
| | - George R Whittell
- School of Chemistry , University of Bristol , Cantock's Close , Bristol BS8 1TS , UK .
| | - Ian Manners
- School of Chemistry , University of Bristol , Cantock's Close , Bristol BS8 1TS , UK .
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19
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Roselló-Merino M, Rama RJ, Díez J, Conejero S. Catalytic dehydrocoupling of amine-boranes and amines into diaminoboranes: isolation of a Pt(ii), Shimoi-type, η(1)-BH complex. Chem Commun (Camb) 2018; 52:8389-92. [PMID: 27297877 DOI: 10.1039/c6cc02720b] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The platinum complex [Pt(I(t)Bu')(I(t)Bu)][BAr(F)] is a very efficient catalyst in the synthesis of diaminoboranes through dehydrocoupling of amine-boranes and amines. Shimoi-type, η(1)-BH complexes are key intermediates in the process.
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Affiliation(s)
- Marta Roselló-Merino
- Instituto de Investigaciones Químicas (IIQ), Departamento de Química Inorgánica, Centro de Innovación en Química Avanzada (ORFEO-CINCA), CSIC and Universidad de Sevilla, Avda. Américo Vespucio 49, 41092 Sevilla, Spain.
| | - Raquel J Rama
- Instituto de Investigaciones Químicas (IIQ), Departamento de Química Inorgánica, Centro de Innovación en Química Avanzada (ORFEO-CINCA), CSIC and Universidad de Sevilla, Avda. Américo Vespucio 49, 41092 Sevilla, Spain.
| | - Josefina Díez
- Laboratorio de Compuestos Organometálicos y Catálisis (Unidad asociada al CSIC), Departamento de Química Orgánica e Inorgánica, Universidad de Oviedo, C/Julián Clavería 8, 33006, Oviedo, Spain
| | - Salvador Conejero
- Instituto de Investigaciones Químicas (IIQ), Departamento de Química Inorgánica, Centro de Innovación en Química Avanzada (ORFEO-CINCA), CSIC and Universidad de Sevilla, Avda. Américo Vespucio 49, 41092 Sevilla, Spain.
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20
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Adams GM, Colebatch AL, Skornia JT, McKay AI, Johnson HC, Lloyd−Jones GC, Macgregor SA, Beattie NA, Weller AS. Dehydropolymerization of H3B·NMeH2 To Form Polyaminoboranes Using [Rh(Xantphos-alkyl)] Catalysts. J Am Chem Soc 2018; 140:1481-1495. [DOI: 10.1021/jacs.7b11975] [Citation(s) in RCA: 64] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Gemma M. Adams
- Chemistry Research Laboratories, Mansfield Road, Oxford OX1 3TA, United Kingdom
| | - Annie L. Colebatch
- Chemistry Research Laboratories, Mansfield Road, Oxford OX1 3TA, United Kingdom
| | - Joseph T. Skornia
- Chemistry Research Laboratories, Mansfield Road, Oxford OX1 3TA, United Kingdom
| | - Alasdair I. McKay
- Chemistry Research Laboratories, Mansfield Road, Oxford OX1 3TA, United Kingdom
| | - Heather C. Johnson
- Chemistry Research Laboratories, Mansfield Road, Oxford OX1 3TA, United Kingdom
| | - Guy C. Lloyd−Jones
- School
of Chemistry, University of Edinburgh, Edinburgh EH9 3FJ, United Kingdom
| | - Stuart A. Macgregor
- Institute
of Chemical Sciences, Heriot Watt University, Edinburgh EH14 4AS, United Kingdom
| | - Nicholas A. Beattie
- Institute
of Chemical Sciences, Heriot Watt University, Edinburgh EH14 4AS, United Kingdom
| | - Andrew S. Weller
- Chemistry Research Laboratories, Mansfield Road, Oxford OX1 3TA, United Kingdom
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21
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Bhunya S, Paul A. Designing an Effective Metal-Free Lewis Acid Catalyst for Ammonia-Borane Dehydrogenation: A DFT Investigation on Triarylboranes. ChemCatChem 2017. [DOI: 10.1002/cctc.201700416] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Sourav Bhunya
- Raman Centre for Atomic, Molecular and Optical Sciences; Indian Association for the Cultivation of Science; Jadavpur Kolkata- 32 India
| | - Ankan Paul
- Raman Centre for Atomic, Molecular and Optical Sciences; Indian Association for the Cultivation of Science; Jadavpur Kolkata- 32 India
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22
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Mellerup SK, Li C, Peng T, Wang S. Regioselective Photoisomerization/C−C Bond Formation of Asymmetric B(ppy)(Mes)(Ar): The Role of the Aryl Groups on Boron. Angew Chem Int Ed Engl 2017; 56:6093-6097. [DOI: 10.1002/anie.201700096] [Citation(s) in RCA: 63] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2017] [Indexed: 11/11/2022]
Affiliation(s)
- Soren K. Mellerup
- Department of Chemistry; Queen's University; Kingston Ontario K7L 3N6 Canada
| | - Cally Li
- Department of Chemistry; Queen's University; Kingston Ontario K7L 3N6 Canada
| | - Tai Peng
- Beijing Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials, School of Chemistry; Beijing Institute of Technology; 5 South Zhongguancun Street Beijing P.R. China
| | - Suning Wang
- Department of Chemistry; Queen's University; Kingston Ontario K7L 3N6 Canada
- Beijing Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials, School of Chemistry; Beijing Institute of Technology; 5 South Zhongguancun Street Beijing P.R. China
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23
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Mellerup SK, Li C, Peng T, Wang S. Regioselektive Photoisomerisierung/C-C-Bindungsbildung von asymmetrischem B(ppy)(Mes)(Ar): die Rolle von Arylgruppen am Boratom. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201700096] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Soren K. Mellerup
- Department of Chemistry; Queen's University; Kingston Ontario K7L 3N6 Kanada
| | - Cally Li
- Department of Chemistry; Queen's University; Kingston Ontario K7L 3N6 Kanada
| | - Tai Peng
- Beijing Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials, School of Chemistry; Beijing Institute of Technology; 5 South Zhongguancun Street Peking P.R. China
| | - Suning Wang
- Department of Chemistry; Queen's University; Kingston Ontario K7L 3N6 Kanada
- Beijing Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials, School of Chemistry; Beijing Institute of Technology; 5 South Zhongguancun Street Peking P.R. China
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24
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Swarnakar AK, Hering-Junghans C, Ferguson MJ, McDonald R, Rivard E. Reactivity of a coordinated inorganic acetylene unit, HBNH, and the azidoborane cation [HB(N 3)] . Chem Sci 2017; 8:2337-2343. [PMID: 28451338 PMCID: PMC5365008 DOI: 10.1039/c6sc04893e] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2016] [Accepted: 12/17/2016] [Indexed: 12/02/2022] Open
Abstract
A donor-acceptor complex of HBNH was prepared via thermolysis of a carbene-stabilized azidoborane. The reactivity of the fundamentally important HBNH unit (inorganic alkyne analogue) was explored in detail, including attempts to convert this species and related hydrido(azido)borane cations into molecular complexes of BN. This work provides added impetus for the development of molecular precursors that can release bulk boron nitride (a desirable insulator and thermal conductor) under mild conditions, and from solution.
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Affiliation(s)
- Anindya K Swarnakar
- Department of Chemistry , University of Alberta , 11227 Saskatchewan Drive , Edmonton , Alberta , Canada T6G 2G2 .
| | - Christian Hering-Junghans
- Department of Chemistry , University of Alberta , 11227 Saskatchewan Drive , Edmonton , Alberta , Canada T6G 2G2 .
| | - Michael J Ferguson
- Department of Chemistry , University of Alberta , 11227 Saskatchewan Drive , Edmonton , Alberta , Canada T6G 2G2 .
| | - Robert McDonald
- Department of Chemistry , University of Alberta , 11227 Saskatchewan Drive , Edmonton , Alberta , Canada T6G 2G2 .
| | - Eric Rivard
- Department of Chemistry , University of Alberta , 11227 Saskatchewan Drive , Edmonton , Alberta , Canada T6G 2G2 .
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25
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Bhunya S, Malakar T, Ganguly G, Paul A. Combining Protons and Hydrides by Homogeneous Catalysis for Controlling the Release of Hydrogen from Ammonia–Borane: Present Status and Challenges. ACS Catal 2016. [DOI: 10.1021/acscatal.6b01704] [Citation(s) in RCA: 92] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Sourav Bhunya
- Raman Centre for Atomic,
Molecular and
Optical Science, Indian Association for the Cultivation of Science, Kolkata 700 032, India
| | - Tanmay Malakar
- Raman Centre for Atomic,
Molecular and
Optical Science, Indian Association for the Cultivation of Science, Kolkata 700 032, India
| | - Gaurab Ganguly
- Raman Centre for Atomic,
Molecular and
Optical Science, Indian Association for the Cultivation of Science, Kolkata 700 032, India
| | - Ankan Paul
- Raman Centre for Atomic,
Molecular and
Optical Science, Indian Association for the Cultivation of Science, Kolkata 700 032, India
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26
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Metters OJ, Flynn SR, Dowds CK, Sparkes HA, Manners I, Wass DF. Catalytic Dehydrocoupling of Amine–Boranes using Cationic Zirconium(IV)–Phosphine Frustrated Lewis Pairs. ACS Catal 2016. [DOI: 10.1021/acscatal.6b02211] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Owen J. Metters
- School of Chemistry, University of Bristol, Cantock’s Close, Bristol BS8 1TS, U.K
| | - Stephanie R. Flynn
- School of Chemistry, University of Bristol, Cantock’s Close, Bristol BS8 1TS, U.K
| | - Christiana K. Dowds
- School of Chemistry, University of Bristol, Cantock’s Close, Bristol BS8 1TS, U.K
| | - Hazel A. Sparkes
- School of Chemistry, University of Bristol, Cantock’s Close, Bristol BS8 1TS, U.K
| | - Ian Manners
- School of Chemistry, University of Bristol, Cantock’s Close, Bristol BS8 1TS, U.K
| | - Duncan F. Wass
- School of Chemistry, University of Bristol, Cantock’s Close, Bristol BS8 1TS, U.K
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27
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Ganguly G, Malakar T, Paul A. In Pursuit of Sustainable Hydrogen Storage with Boron-Nitride Fullerene as the Storage Medium. CHEMSUSCHEM 2016; 9:1386-1391. [PMID: 27174725 DOI: 10.1002/cssc.201600213] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/17/2016] [Indexed: 06/05/2023]
Abstract
Using well calibrated DFT studies we predict that experimentally synthesized B24 N24 fullerene can serve as a potential reversible chemical hydrogen storage material with hydrogen-gas storage capacity up to 5.13 wt %. Our theoretical studies show that hydrogenation and dehydrogenation of the fullerene framework can be achieved at reasonable rates using existing metal-free hydrogenating agents and base metal-containing dehydrogenation catalysts.
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Affiliation(s)
- Gaurab Ganguly
- Raman Centre for Atomic Molecular and Optical Sciences, Indian Association for the Cultivation of Science, 2A & 2B, Raja S.C. Mullick Road, Kolkata, 700032, India
| | - Tanmay Malakar
- Raman Centre for Atomic Molecular and Optical Sciences, Indian Association for the Cultivation of Science, 2A & 2B, Raja S.C. Mullick Road, Kolkata, 700032, India
| | - Ankan Paul
- Raman Centre for Atomic Molecular and Optical Sciences, Indian Association for the Cultivation of Science, 2A & 2B, Raja S.C. Mullick Road, Kolkata, 700032, India.
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28
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Metal-Free Dehydrogenation of Amine-Boranes by Tunable N-Heterocyclic Iminoboranes. Chemistry 2016; 22:2134-2145. [DOI: 10.1002/chem.201503528] [Citation(s) in RCA: 42] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2015] [Indexed: 01/11/2023]
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29
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Stennett TE, Harder S. s-Block amidoboranes: syntheses, structures, reactivity and applications. Chem Soc Rev 2016; 45:1112-28. [DOI: 10.1039/c5cs00544b] [Citation(s) in RCA: 53] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The highly versatile amidoborane compounds of the group 1 and 2 metals are reviewed, with an emphasis on their synthesis, structures and reactivity.
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Affiliation(s)
- Tom E. Stennett
- Friedrich-Alexander-Universität Erlangen-Nürnberg
- Inorganic and Organometallic Chemistry
- 91058 Erlangen
- Germany
| | - Sjoerd Harder
- Friedrich-Alexander-Universität Erlangen-Nürnberg
- Inorganic and Organometallic Chemistry
- 91058 Erlangen
- Germany
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30
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Stubbs NE, Schäfer A, Robertson APM, Leitao EM, Jurca T, Sparkes HA, Woodall CH, Haddow MF, Manners I. B-Methylated Amine-Boranes: Substituent Redistribution, Catalytic Dehydrogenation, and Facile Metal-Free Hydrogen Transfer Reactions. Inorg Chem 2015; 54:10878-89. [DOI: 10.1021/acs.inorgchem.5b01946] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Naomi E. Stubbs
- School
of Chemistry, University of Bristol, Cantock’s Close, Bristol, BS8 1TS, U.K
| | - André Schäfer
- School
of Chemistry, University of Bristol, Cantock’s Close, Bristol, BS8 1TS, U.K
| | | | - Erin M. Leitao
- School
of Chemistry, University of Bristol, Cantock’s Close, Bristol, BS8 1TS, U.K
| | - Titel Jurca
- School
of Chemistry, University of Bristol, Cantock’s Close, Bristol, BS8 1TS, U.K
| | - Hazel A. Sparkes
- School
of Chemistry, University of Bristol, Cantock’s Close, Bristol, BS8 1TS, U.K
| | | | - Mairi F. Haddow
- School
of Chemistry, University of Bristol, Cantock’s Close, Bristol, BS8 1TS, U.K
| | - Ian Manners
- School
of Chemistry, University of Bristol, Cantock’s Close, Bristol, BS8 1TS, U.K
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31
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Li H, Ma N, Meng W, Gallucci J, Qiu Y, Li S, Zhao Q, Zhang J, Zhao JC, Chen X. Formation Mechanisms, Structure, Solution Behavior, and Reactivity of Aminodiborane. J Am Chem Soc 2015; 137:12406-14. [DOI: 10.1021/jacs.5b08033] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
- Huizhen Li
- Key
Laboratory of Green Chemical Media and Reactions, Ministry of Education,
Collaborative Innovation Center of Henan Province for Green Manufacturing
of Fine Chemicals, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan 453007, China
| | - Nana Ma
- Key
Laboratory of Green Chemical Media and Reactions, Ministry of Education,
Collaborative Innovation Center of Henan Province for Green Manufacturing
of Fine Chemicals, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan 453007, China
| | - Wenjuan Meng
- Key
Laboratory of Green Chemical Media and Reactions, Ministry of Education,
Collaborative Innovation Center of Henan Province for Green Manufacturing
of Fine Chemicals, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan 453007, China
| | | | - Yongqing Qiu
- Faculty
of Chemistry, Northeast Normal University, Changchun, Jilin 130024, China
| | - Shujun Li
- Key
Laboratory of Green Chemical Media and Reactions, Ministry of Education,
Collaborative Innovation Center of Henan Province for Green Manufacturing
of Fine Chemicals, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan 453007, China
| | - Qianyi Zhao
- Key
Laboratory of Green Chemical Media and Reactions, Ministry of Education,
Collaborative Innovation Center of Henan Province for Green Manufacturing
of Fine Chemicals, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan 453007, China
| | - Jie Zhang
- Key
Laboratory of Green Chemical Media and Reactions, Ministry of Education,
Collaborative Innovation Center of Henan Province for Green Manufacturing
of Fine Chemicals, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan 453007, China
| | | | - Xuenian Chen
- Key
Laboratory of Green Chemical Media and Reactions, Ministry of Education,
Collaborative Innovation Center of Henan Province for Green Manufacturing
of Fine Chemicals, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan 453007, China
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32
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Metters OJ, Chapman AM, Robertson APM, Woodall CH, Gates PJ, Wass DF, Manners I. Generation of aminoborane monomers RR'N=BH2 from amine-boronium cations [RR'NH-BH2L](+): metal catalyst-free formation of polyaminoboranes at ambient temperature. Chem Commun (Camb) 2015; 50:12146-9. [PMID: 25177756 DOI: 10.1039/c4cc05145a] [Citation(s) in RCA: 58] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Abstract
Protonation of MeRNH·BH3 (R = Me or H) with HX (X = B(C6F5)4, OTf, or Cl), followed by immediate, spontaneous H2 elimination, yielded the amine-boronium cation salt [MeRNH·BH2(OEt2)][B(C6F5)4] and related polar covalent analogs, MeRNH·BH2X (X = OTf or Cl). These species can be deprotonated to conveniently generate reactive aminoborane monomers MeRN=BH2 which oligomerize or polymerize; in the case of MeNH2·BH3, the two step process gave poly(N-methylaminoborane), [MeNH-BH2]n.
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Affiliation(s)
- Owen J Metters
- School of Chemistry, University of Bristol, Cantock's Close, Bristol, BS8 1TS, UK.
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33
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Bhunya S, Zimmerman PM, Paul A. Unraveling the Crucial Role of Metal-Free Catalysis in Borazine and Polyborazylene Formation in Transition-Metal-Catalyzed Ammonia–Borane Dehydrogenation. ACS Catal 2015. [DOI: 10.1021/cs502129m] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Affiliation(s)
- Sourav Bhunya
- Raman
Centre for Atomic, Molecular and Optical Science, Indian Association for the Cultivation of Science, Kolkata 700 032, India
| | - Paul M. Zimmerman
- Department
of Chemistry, University of Michigan, 930 North University Avenue, Ann Arbor, Michigan 48109, United States
| | - Ankan Paul
- Raman
Centre for Atomic, Molecular and Optical Science, Indian Association for the Cultivation of Science, Kolkata 700 032, India
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34
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Lummis PA, McDonald R, Ferguson MJ, Rivard E. Synthesis, characterisation, and dehydrocoupling ability of zirconium complexes bearing hindered bis(amido)silyl ligands. Dalton Trans 2015; 44:7009-20. [PMID: 25781718 DOI: 10.1039/c5dt00306g] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Herein we detail the synthesis and characterisation of a series of zirconium compounds featuring the bis(amido)silyl ligand [(i)Pr2Si(NDipp)2](2-) (Dipp = 2,6-diisopropylphenyl). The functionalisation of bis(amido)silyl zirconium halide complexes with a variety of nucleophiles, such as LiNMe2, LiBH4 and MeLi, was explored and the resulting products showed a propensity to form anionic zirconate salts when the syntheses were carried out in THF. One of the zirconate products, [(i)Pr2Si(NDipp)2]Zr(NMe2)2·ClLi(THF)3, has the ability to catalyse the dehydrocoupling of primary and secondary amine-boranes at room temperature in aromatic solvents.
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Affiliation(s)
- Paul A Lummis
- Department of Chemistry, University of Alberta, 11227 Saskatchewan Drive, Edmonton, Alberta, Canada T6G 2G2.
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Leitao EM, Manners I. Rehydrogenation of Aminoboranes to Amine-Boranes Using H2O: Reaction Scope and Mechanism. Eur J Inorg Chem 2015. [DOI: 10.1002/ejic.201500117] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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Malakar T, Bhunya S, Paul A. Theoretical Investigation on the Chemistry of Entrapment of the Elusive Aminoborane (H2NBH2) Molecule. Chemistry 2015; 21:6340-5. [DOI: 10.1002/chem.201405543] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2014] [Indexed: 11/08/2022]
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Kalviri HA, Gärtner F, Ye G, Korobkov I, Baker RT. Probing the second dehydrogenation step in ammonia-borane dehydrocoupling: characterization and reactivity of the key intermediate, B-(cyclotriborazanyl)amine-borane. Chem Sci 2015; 6:618-624. [PMID: 28706630 PMCID: PMC5491959 DOI: 10.1039/c4sc02710h] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2014] [Accepted: 10/30/2014] [Indexed: 01/16/2023] Open
Abstract
While thermolysis of ammonia-borane (AB) affords a mixture of aminoborane- and iminoborane oligomers, the most selective metal-based catalysts afford exclusively cyclic iminoborane trimer (borazine) and its B-N cross-linked oligomers (polyborazylene). This catalysed dehydrogenation sequence proceeds through a branched cyclic aminoborane oligomer assigned previously as trimeric B-(cyclodiborazanyl)amine-borane (BCDB). Herein we utilize multinuclear NMR spectroscopy and X-ray crystallography to show instead that this key intermediate is actually tetrameric B-(cyclotriborazanyl)amine-borane (BCTB) and a method is presented for its selective synthesis from AB. The reactivity of BCTB upon thermal treatment as well as catalytic dehydrogenation is studied and discussed with regard to facilitating the second dehydrogenation step in AB dehydrocoupling.
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Affiliation(s)
- Hassan A Kalviri
- Department of Chemistry and Centre for Catalysis Research and Innovation (CCRI) , University of Ottawa , 10 Marie Curie , Ottawa , Ontario K1N 6N5 , Canada . ; ; Tel: +1 613 5625698
| | - Felix Gärtner
- Department of Chemistry and Centre for Catalysis Research and Innovation (CCRI) , University of Ottawa , 10 Marie Curie , Ottawa , Ontario K1N 6N5 , Canada . ; ; Tel: +1 613 5625698
- Leibniz-Institut für Katalyse (LIKAT) , Albert-Einstein Straβe 29a , 18059 Rostock , Germany
| | - Gang Ye
- Department of Chemistry and Centre for Catalysis Research and Innovation (CCRI) , University of Ottawa , 10 Marie Curie , Ottawa , Ontario K1N 6N5 , Canada . ; ; Tel: +1 613 5625698
| | - Ilia Korobkov
- Department of Chemistry and Centre for Catalysis Research and Innovation (CCRI) , University of Ottawa , 10 Marie Curie , Ottawa , Ontario K1N 6N5 , Canada . ; ; Tel: +1 613 5625698
| | - R Tom Baker
- Department of Chemistry and Centre for Catalysis Research and Innovation (CCRI) , University of Ottawa , 10 Marie Curie , Ottawa , Ontario K1N 6N5 , Canada . ; ; Tel: +1 613 5625698
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Johnson HC, Leitao EM, Whittell GR, Manners I, Lloyd-Jones GC, Weller AS. Mechanistic Studies of the Dehydrocoupling and Dehydropolymerization of Amine–Boranes Using a [Rh(Xantphos)]+ Catalyst. J Am Chem Soc 2014; 136:9078-93. [DOI: 10.1021/ja503335g] [Citation(s) in RCA: 118] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Heather C. Johnson
- Department
of Chemistry, Chemistry Research Laboratories, University of Oxford, Mansfield Road, Oxford OX1 3TA, United Kingdom
| | - Erin M. Leitao
- School
of Chemistry, University of Bristol, Cantock’s Close, Bristol BS8 1TS, United Kingdom
| | - George R. Whittell
- School
of Chemistry, University of Bristol, Cantock’s Close, Bristol BS8 1TS, United Kingdom
| | - Ian Manners
- School
of Chemistry, University of Bristol, Cantock’s Close, Bristol BS8 1TS, United Kingdom
| | - Guy C. Lloyd-Jones
- School
of Chemistry, University of Edinburgh, West Mains Road, Edinburgh EH9 3JJ, United Kingdom
| | - Andrew S. Weller
- Department
of Chemistry, Chemistry Research Laboratories, University of Oxford, Mansfield Road, Oxford OX1 3TA, United Kingdom
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Vance JR, Schäfer A, Robertson APM, Lee K, Turner J, Whittell GR, Manners I. Iron-Catalyzed Dehydrocoupling/Dehydrogenation of Amine–Boranes. J Am Chem Soc 2014; 136:3048-64. [DOI: 10.1021/ja410129j] [Citation(s) in RCA: 99] [Impact Index Per Article: 9.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Affiliation(s)
- James R. Vance
- School of Chemistry, University of Bristol, Cantock’s Close, Bristol BS8 1TS, U.K
| | - André Schäfer
- School of Chemistry, University of Bristol, Cantock’s Close, Bristol BS8 1TS, U.K
| | | | - Kajin Lee
- School of Chemistry, University of Bristol, Cantock’s Close, Bristol BS8 1TS, U.K
| | - Joshua Turner
- School of Chemistry, University of Bristol, Cantock’s Close, Bristol BS8 1TS, U.K
| | - George R. Whittell
- School of Chemistry, University of Bristol, Cantock’s Close, Bristol BS8 1TS, U.K
| | - Ian Manners
- School of Chemistry, University of Bristol, Cantock’s Close, Bristol BS8 1TS, U.K
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Muhammad S, Moncho S, Brothers EN, Bengali AA. Dehydrogenation of a tertiary amine-borane by a rhenium complex. Chem Commun (Camb) 2014; 50:5874-7. [DOI: 10.1039/c4cc01771d] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Photolysis of CpRe(CO)3 in the presence of H3BNEt3 results in the dehydrogenation of the borane and formation of trans-CpRe(CO)2(H)2.
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Affiliation(s)
- Sohail Muhammad
- Department of Chemistry
- Texas A&M University at Qatar
- Doha, Qatar
| | - Salvador Moncho
- Department of Chemistry
- Texas A&M University at Qatar
- Doha, Qatar
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Sabourin KJ, Malcolm AC, McDonald R, Ferguson MJ, Rivard E. Metal-free dehydrogenation of amine-boranes by an N-heterocyclic carbene. Dalton Trans 2013; 42:4625-32. [PMID: 23358571 DOI: 10.1039/c3dt32988g] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
The dehydrogenation of primary and secondary amine-boranes (RNH(2)·BH(3) and R(2)NH·BH(3); R = alkyl groups) was studied using the bulky N-heterocyclic carbene IPr (IPr = [(HCNDipp)C:]; Dipp = 2,6-(i)Pr(2)C(6)H(3)) as a stoichiometric dehydrogenation agent. In the case of primary amine-boranes, carbene-bound adducts IPr·BH(2)-NH(R)-BH(3) were obtained in place of the desired polymers [RNH-BH(2)](n). The secondary amine-borane (i)Pr(2)NH·BH(3) participated in dehydrogenation chemistry with IPr to afford the aminoborane [(i)Pr(2)N=BH(2)] and the dihydroaminal IPrH(2) as products. Attempts to induce H(2) elimination from the arylamine-borane DippNH(2)·BH(3) yielded a reaction mixture containing the known species IPr·BH(2)NHDipp, IPr·BH(2)NH(Dipp)-BH(3), free DippNH(2) and IPrH(2). The new hindered aryl-amine borane adduct Ar*NH(2)·BH(3) [Ar* = 2,6-(Ph(2)CH)(2)-4-MeC(6)H(2)] underwent a reaction with IPr to give IPr·BH(3) and free Ar*NH(2), consistent with the presence of a weaker N-B dative bond in Ar*NH(2)·BH(3) relative to its less hindered amine-borane analogues.
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Affiliation(s)
- Kyle J Sabourin
- Department of Chemistry, University of Alberta, 11227 Saskatchewan Dr., Edmonton, AB, Canada T6G 2G2
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Marziale AN, Friedrich A, Klopsch I, Drees M, Celinski VR, Schmedt auf der Günne J, Schneider S. The Mechanism of Borane–Amine Dehydrocoupling with Bifunctional Ruthenium Catalysts. J Am Chem Soc 2013; 135:13342-55. [DOI: 10.1021/ja311092c] [Citation(s) in RCA: 133] [Impact Index Per Article: 12.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Alexander N. Marziale
- Department
Chemie und Pharmazie, Friedrich-Alexander-Universität Erlangen-Nürnberg, Egerlandstrasse 1, 91058 Erlangen, Germany
| | - Anja Friedrich
- Department
Chemie, Technische Universität München, Lichtenbergstrasse 4, 85747 Garching b. München, Germany
| | - Isabel Klopsch
- Georg-August-Universität Göttingen, Tammannstrasse
4, 37077 Göttingen, Germany
| | - Markus Drees
- Department
Chemie, Technische Universität München, Lichtenbergstrasse 4, 85747 Garching b. München, Germany
| | - Vinicius R. Celinski
- Department
Chemie und Biochemie, Ludwig-Maximilians-Universität München, Butenandtstrasse
5-13, 81377 München, Germany
| | - Jörn Schmedt auf der Günne
- Department
Chemie und Biochemie, Ludwig-Maximilians-Universität München, Butenandtstrasse
5-13, 81377 München, Germany
| | - Sven Schneider
- Department
Chemie, Technische Universität München, Lichtenbergstrasse 4, 85747 Garching b. München, Germany
- Department
Chemie und Pharmazie, Friedrich-Alexander-Universität Erlangen-Nürnberg, Egerlandstrasse 1, 91058 Erlangen, Germany
- Georg-August-Universität Göttingen, Tammannstrasse
4, 37077 Göttingen, Germany
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Robertson APM, Leitao EM, Jurca T, Haddow MF, Helten H, Lloyd-Jones GC, Manners I. Mechanisms of the Thermal and Catalytic Redistributions, Oligomerizations, and Polymerizations of Linear Diborazanes. J Am Chem Soc 2013; 135:12670-83. [DOI: 10.1021/ja404247r] [Citation(s) in RCA: 47] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Affiliation(s)
| | - Erin M. Leitao
- School of Chemistry, University of Bristol, Cantock’s Close, Bristol
BS8 1TS, United Kingdom
| | - Titel Jurca
- School of Chemistry, University of Bristol, Cantock’s Close, Bristol
BS8 1TS, United Kingdom
| | - Mairi F. Haddow
- School of Chemistry, University of Bristol, Cantock’s Close, Bristol
BS8 1TS, United Kingdom
| | - Holger Helten
- Institute of Inorganic Chemistry, RWTH Aachen University, Landoltweg 1, 52056 Aachen,
Germany
| | - Guy C. Lloyd-Jones
- School of Chemistry, University of Bristol, Cantock’s Close, Bristol
BS8 1TS, United Kingdom
| | - Ian Manners
- School of Chemistry, University of Bristol, Cantock’s Close, Bristol
BS8 1TS, United Kingdom
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Sewell LJ, Huertos MA, Dickinson ME, Weller AS, Lloyd-Jones GC. Dehydrocoupling of Dimethylamine Borane Catalyzed by Rh(PCy3)2H2Cl. Inorg Chem 2013; 52:4509-16. [DOI: 10.1021/ic302804d] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Laura J. Sewell
- Department of Chemistry, Chemistry
Research Laboratory, University of Oxford, 12 Mansfield Road, Oxford OX1
3TA, United Kingdom
| | - Miguel A. Huertos
- Department of Chemistry, Chemistry
Research Laboratory, University of Oxford, 12 Mansfield Road, Oxford OX1
3TA, United Kingdom
| | - Molly E. Dickinson
- Department of Chemistry, Chemistry
Research Laboratory, University of Oxford, 12 Mansfield Road, Oxford OX1
3TA, United Kingdom
| | - Andrew S. Weller
- Department of Chemistry, Chemistry
Research Laboratory, University of Oxford, 12 Mansfield Road, Oxford OX1
3TA, United Kingdom
| | - Guy C. Lloyd-Jones
- School
of Chemistry, University of Bristol, Bristol
BS8 1TS, United Kingdom
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46
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Amine–borane dehydrogenation chemistry: Metal-free hydrogen transfer, new catalysts and mechanisms, and the synthesis of polyaminoboranes. J Organomet Chem 2013. [DOI: 10.1016/j.jorganchem.2012.10.010] [Citation(s) in RCA: 46] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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47
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Rao YL, Amarne H, Chen LD, Brown ML, Mosey NJ, Wang S. Photo- and Thermal-Induced Multistructural Transformation of 2-Phenylazolyl Chelate Boron Compounds. J Am Chem Soc 2013; 135:3407-10. [DOI: 10.1021/ja400917r] [Citation(s) in RCA: 74] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Ying-Li Rao
- Department of Chemistry, Queen’s University, Kingston, Ontario, Canada K7L 3N6
| | - Hazem Amarne
- Department of Chemistry, Queen’s University, Kingston, Ontario, Canada K7L 3N6
| | - Leanne D. Chen
- Department of Chemistry, Queen’s University, Kingston, Ontario, Canada K7L 3N6
| | - Matthew L. Brown
- Department of Chemistry, Queen’s University, Kingston, Ontario, Canada K7L 3N6
| | - Nicholas J. Mosey
- Department of Chemistry, Queen’s University, Kingston, Ontario, Canada K7L 3N6
| | - Suning Wang
- Department of Chemistry, Queen’s University, Kingston, Ontario, Canada K7L 3N6
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Coexistence of Lewis Acid and Base Functions: A Generalized View of the Frustrated Lewis Pair Concept with Novel Implications for Reactivity. Top Curr Chem (Cham) 2013; 334:27-57. [DOI: 10.1007/128_2012_400] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/09/2023]
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49
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A tert-butyl-substituted amino-borane bound to an iridium fragment: A latent source of free H2BNtBuH. J Organomet Chem 2012. [DOI: 10.1016/j.jorganchem.2012.07.018] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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50
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Helten H, Dutta B, Vance JR, Sloan ME, Haddow MF, Sproules S, Collison D, Whittell GR, Lloyd-Jones GC, Manners I. Paramagnetic Titanium(III) and Zirconium(III) Metallocene Complexes as Precatalysts for the Dehydrocoupling/Dehydrogenation of Amine-Boranes. Angew Chem Int Ed Engl 2012. [DOI: 10.1002/ange.201207903] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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