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Wang J, Jia P, Sun W, Wei Y, Lin Z, Ye Q. Synthesis of Iminoboryl o-Carboranes by Lewis Base Promoted Aminoborirane-to-Iminoborane Isomerization. Inorg Chem 2022; 61:8879-8886. [PMID: 35649271 DOI: 10.1021/acs.inorgchem.2c00944] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The iminoboryl o-carboranes (Me3Si)-Cb-B≡N-R (Cb = B10C2H10, 3a, R = SiMe3; 3b, R = tBu) have been successfully synthesized by tetrahydrofuran (THF)-promoted isomerization from the corresponding o-carborane-fused aminoboriranes Cb{BN(SiMe3)R} (2). The synthetic protocol of the previously reported borirane 2a was optimized. The borirane Cb{BN(SiMe3)tBu} (2b) and the iminoboranes 3a and 3b were fully characterized by NMR, IR, and single-crystal X-ray diffraction analyses. The borirane 2a isomerizes more readily than 2b. The kinetics study revealed a bimolecular mechanism between borirane and THF, which is in good agreement with the computationally proposed reaction pathway. The title compounds are thermally robust, but compound 3a dimerized in the presence of a catalytic amount of tBuNC to give the cyclodimer 4. Quick equilibrium between 4 and the isonitrile adduct 4·tBuNC was observed in solution.
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Affiliation(s)
- Junyi Wang
- Department of Chemistry, Southern University of Science and Technology, Shenzhen 518055, P. R. China.,Department of Chemistry, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon 999077, Hong Kong
| | - Penghui Jia
- Department of Chemistry, Southern University of Science and Technology, Shenzhen 518055, P. R. China
| | - Weicheng Sun
- Department of Chemistry, Southern University of Science and Technology, Shenzhen 518055, P. R. China
| | - Yuxiang Wei
- Department of Chemistry, Southern University of Science and Technology, Shenzhen 518055, P. R. China
| | - Zhenyang Lin
- Department of Chemistry, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon 999077, Hong Kong
| | - Qing Ye
- Department of Chemistry, Southern University of Science and Technology, Shenzhen 518055, P. R. China.,Institute for Inorganic Chemistry, Julius-Maximilians-Universität Würzburg, Am Hubland, Würzburg 97074, Germany.,Institute for Sustainable Chemistry & Catalysis with Boron, Julius-Maximilians-Universität Würzburg, Am Hubland, Würzburg 97074, Germany
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Brown NJ, Lancashire HN, Fox MA, Collison D, Edge R, Yufit DS, Howard JAK, Whiteley MW, Low PJ. Molybdenum Complexes of C,C-Bis(ethynyl)carboranes: Design, Synthesis, and Study of a Weakly Coupled Mixed-Valence Compound. Organometallics 2010. [DOI: 10.1021/om1010353] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Neil J. Brown
- Department of Chemistry, Durham University, South Road, Durham DH1 3LE, U.K
| | | | - Mark A. Fox
- Department of Chemistry, Durham University, South Road, Durham DH1 3LE, U.K
| | - David Collison
- EPSRC National Service for EPR Spectroscopy, School of Chemistry, University of Manchester, Manchester M13 9PL, U.K
| | - Ruth Edge
- EPSRC National Service for EPR Spectroscopy, School of Chemistry, University of Manchester, Manchester M13 9PL, U.K
| | - Dmitry S. Yufit
- Department of Chemistry, Durham University, South Road, Durham DH1 3LE, U.K
| | | | - Mark W. Whiteley
- School of Chemistry, University of Manchester, Manchester M13 9PL, U.K
| | - Paul J. Low
- Department of Chemistry, Durham University, South Road, Durham DH1 3LE, U.K
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Fox MA, Roberts RL, Baines TE, Le Guennic B, Halet JF, Hartl F, Yufit DS, Albesa-Jové D, Howard JAK, Low PJ. Ruthenium Complexes of C,C‘-Bis(ethynyl)carboranes: An Investigation of Electronic Interactions Mediated by Spherical Pseudo-aromatic Spacers. J Am Chem Soc 2008; 130:3566-78. [DOI: 10.1021/ja0779755] [Citation(s) in RCA: 109] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Mark A. Fox
- Department of Chemistry, Durham University, South Rd, Durham, DH1 3LE, UK, Laboratoire des Sciences Chimiques de Rennes, UMR 6226 CNRS-Université de Rennes 1, 35042 Rennes cedex, France, Laboratoire de Chimie, UMR CNRS 5182, Ecole Normale Supérieure de Lyon, 46 allée d'Italie, 69364 Lyon cedex 07, France, and Van 't Hoff Institute for Molecular Sciences, University of Amsterdam, Nieuwe Achtergracht 166, 1018WV Amsterdam, The Netherlands
| | - Rachel L. Roberts
- Department of Chemistry, Durham University, South Rd, Durham, DH1 3LE, UK, Laboratoire des Sciences Chimiques de Rennes, UMR 6226 CNRS-Université de Rennes 1, 35042 Rennes cedex, France, Laboratoire de Chimie, UMR CNRS 5182, Ecole Normale Supérieure de Lyon, 46 allée d'Italie, 69364 Lyon cedex 07, France, and Van 't Hoff Institute for Molecular Sciences, University of Amsterdam, Nieuwe Achtergracht 166, 1018WV Amsterdam, The Netherlands
| | - Thomas E. Baines
- Department of Chemistry, Durham University, South Rd, Durham, DH1 3LE, UK, Laboratoire des Sciences Chimiques de Rennes, UMR 6226 CNRS-Université de Rennes 1, 35042 Rennes cedex, France, Laboratoire de Chimie, UMR CNRS 5182, Ecole Normale Supérieure de Lyon, 46 allée d'Italie, 69364 Lyon cedex 07, France, and Van 't Hoff Institute for Molecular Sciences, University of Amsterdam, Nieuwe Achtergracht 166, 1018WV Amsterdam, The Netherlands
| | - Boris Le Guennic
- Department of Chemistry, Durham University, South Rd, Durham, DH1 3LE, UK, Laboratoire des Sciences Chimiques de Rennes, UMR 6226 CNRS-Université de Rennes 1, 35042 Rennes cedex, France, Laboratoire de Chimie, UMR CNRS 5182, Ecole Normale Supérieure de Lyon, 46 allée d'Italie, 69364 Lyon cedex 07, France, and Van 't Hoff Institute for Molecular Sciences, University of Amsterdam, Nieuwe Achtergracht 166, 1018WV Amsterdam, The Netherlands
| | - Jean-François Halet
- Department of Chemistry, Durham University, South Rd, Durham, DH1 3LE, UK, Laboratoire des Sciences Chimiques de Rennes, UMR 6226 CNRS-Université de Rennes 1, 35042 Rennes cedex, France, Laboratoire de Chimie, UMR CNRS 5182, Ecole Normale Supérieure de Lyon, 46 allée d'Italie, 69364 Lyon cedex 07, France, and Van 't Hoff Institute for Molecular Sciences, University of Amsterdam, Nieuwe Achtergracht 166, 1018WV Amsterdam, The Netherlands
| | - František Hartl
- Department of Chemistry, Durham University, South Rd, Durham, DH1 3LE, UK, Laboratoire des Sciences Chimiques de Rennes, UMR 6226 CNRS-Université de Rennes 1, 35042 Rennes cedex, France, Laboratoire de Chimie, UMR CNRS 5182, Ecole Normale Supérieure de Lyon, 46 allée d'Italie, 69364 Lyon cedex 07, France, and Van 't Hoff Institute for Molecular Sciences, University of Amsterdam, Nieuwe Achtergracht 166, 1018WV Amsterdam, The Netherlands
| | - Dmitri S. Yufit
- Department of Chemistry, Durham University, South Rd, Durham, DH1 3LE, UK, Laboratoire des Sciences Chimiques de Rennes, UMR 6226 CNRS-Université de Rennes 1, 35042 Rennes cedex, France, Laboratoire de Chimie, UMR CNRS 5182, Ecole Normale Supérieure de Lyon, 46 allée d'Italie, 69364 Lyon cedex 07, France, and Van 't Hoff Institute for Molecular Sciences, University of Amsterdam, Nieuwe Achtergracht 166, 1018WV Amsterdam, The Netherlands
| | - David Albesa-Jové
- Department of Chemistry, Durham University, South Rd, Durham, DH1 3LE, UK, Laboratoire des Sciences Chimiques de Rennes, UMR 6226 CNRS-Université de Rennes 1, 35042 Rennes cedex, France, Laboratoire de Chimie, UMR CNRS 5182, Ecole Normale Supérieure de Lyon, 46 allée d'Italie, 69364 Lyon cedex 07, France, and Van 't Hoff Institute for Molecular Sciences, University of Amsterdam, Nieuwe Achtergracht 166, 1018WV Amsterdam, The Netherlands
| | - Judith A. K. Howard
- Department of Chemistry, Durham University, South Rd, Durham, DH1 3LE, UK, Laboratoire des Sciences Chimiques de Rennes, UMR 6226 CNRS-Université de Rennes 1, 35042 Rennes cedex, France, Laboratoire de Chimie, UMR CNRS 5182, Ecole Normale Supérieure de Lyon, 46 allée d'Italie, 69364 Lyon cedex 07, France, and Van 't Hoff Institute for Molecular Sciences, University of Amsterdam, Nieuwe Achtergracht 166, 1018WV Amsterdam, The Netherlands
| | - Paul J. Low
- Department of Chemistry, Durham University, South Rd, Durham, DH1 3LE, UK, Laboratoire des Sciences Chimiques de Rennes, UMR 6226 CNRS-Université de Rennes 1, 35042 Rennes cedex, France, Laboratoire de Chimie, UMR CNRS 5182, Ecole Normale Supérieure de Lyon, 46 allée d'Italie, 69364 Lyon cedex 07, France, and Van 't Hoff Institute for Molecular Sciences, University of Amsterdam, Nieuwe Achtergracht 166, 1018WV Amsterdam, The Netherlands
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