1
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Zhang Z, Ma Q, Yang X, Zhang S, Guo K, Zhao L. A computational mechanistic study on the formation of aryl sulfonyl fluorides via Bi(III) redox-neutral catalysis and further rational design. J Comput Chem 2024. [PMID: 39240057 DOI: 10.1002/jcc.27501] [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: 04/08/2024] [Revised: 08/20/2024] [Accepted: 08/23/2024] [Indexed: 09/07/2024]
Abstract
Sulfonyl fluorides hold significant importance as highly valued intermediates in chemical biology due to their optimal balance of biocompatibility with both aqueous stability and protein reactivity. The Cornella group introduced a one-pot strategy for synthesizing aryl sulfonyl fluorides via Bi(III) redox-neutral catalysis, which facilitates the transmetallation and direct insertion of SO2 into the BiC(sp2) bond giving the aryl sulfonyl fluorides. We report herein a comprehensive computational investigation of the redox-neutral Bi(III) catalytic mechanism, disclose the critical role of the Bi(III) catalyst and base (i.e., K3PO4), and uncover the origin of SO2 insertion into the Bi(III)C(sp2) bond. The entire catalysis can be characterized via three stages: (i) transmetallation generating the Bi(III)-phenyl intermediate IM3 facilitated by K3PO4. (ii) SO2 insertion into IM3 leading to the formation of Bi(III)-OSOAr intermediate IM5. (iii) IM5 undergoes S(IV)-oxidation yielding the aryl sulfonyl fluoride product 4 and liberating the Bi(III) catalyst for the next catalytic cycle. Each stage is kinetically and thermodynamically feasible. Moreover, we explored other some small molecules (NO2, CO2, H2O, N2O, etc.) insertion reactions mediated by the Bi(III)-complex, and found that NO2 insertions could be easily achieved due to the low insertion barriers (i.e., 17.5 kcal/mol). Based on the detailed mechanistic study, we further rationally designed additional Bi(III) and Sb(III) catalysts, and found that some of which exhibit promising potential for experimental realization due to their low barriers (<16.4 kcal/mol). In this regard, our study contributes significantly to enhancing current Bi(III)-catalytic systems and paving the way for novel Bi(III)-catalyzed aryl sulfonyl fluoride formation reactions.
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Affiliation(s)
- Zhaoyin Zhang
- State Key Laboratory of Materials-Oriented Chemical Engineering, School of Chemistry and Molecular Engineering, Nanjing Tech University, Nanjing, China
| | - Qin Ma
- State Key Laboratory of Materials-Oriented Chemical Engineering, School of Chemistry and Molecular Engineering, Nanjing Tech University, Nanjing, China
| | - Xing Yang
- State Key Laboratory of Materials-Oriented Chemical Engineering, School of Chemistry and Molecular Engineering, Nanjing Tech University, Nanjing, China
| | - Shuqi Zhang
- State Key Laboratory of Materials-Oriented Chemical Engineering, School of Chemistry and Molecular Engineering, Nanjing Tech University, Nanjing, China
| | - Kai Guo
- College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, Nanjing, China
| | - Lili Zhao
- State Key Laboratory of Materials-Oriented Chemical Engineering, School of Chemistry and Molecular Engineering, Nanjing Tech University, Nanjing, China
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2
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Kuziola J, Nöthling N, Leutzsch M, Cornella J. Synthesis and characterization of chlorotriarylbismuthonium salts. Chem Commun (Camb) 2024. [PMID: 39229666 PMCID: PMC11372555 DOI: 10.1039/d4cc03364g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/05/2024]
Abstract
This work reports the synthesis and structural study of a family of chlorotriarylbismuthonium salts. The abstraction of a chlorine atom with NaBArF from triarylbismuth dichloride species leads to monomeric and dimeric chlorotriarylbismuthonium species, which show a distinct behavior in solution and solid-state in comparison to their fluorotriarylbismuthonium analogues.
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Affiliation(s)
- Jennifer Kuziola
- Max-Planck-Institut für Kohlenforschung, Kaiser-Wilhelm-Platz 1, 45470 Mülheim an der Ruhr, Germany.
| | - Nils Nöthling
- Max-Planck-Institut für Kohlenforschung, Kaiser-Wilhelm-Platz 1, 45470 Mülheim an der Ruhr, Germany.
| | - Markus Leutzsch
- Max-Planck-Institut für Kohlenforschung, Kaiser-Wilhelm-Platz 1, 45470 Mülheim an der Ruhr, Germany.
| | - Josep Cornella
- Max-Planck-Institut für Kohlenforschung, Kaiser-Wilhelm-Platz 1, 45470 Mülheim an der Ruhr, Germany.
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3
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Szlosek R, Marquardt C, Hegen O, Balázs G, Riesinger C, Timoshkin AY, Scheer M. Synthesis of bismuthanyl-substituted monomeric triel hydrides. Chem Sci 2024:d4sc03926b. [PMID: 39184294 PMCID: PMC11342148 DOI: 10.1039/d4sc03926b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2024] [Accepted: 08/09/2024] [Indexed: 08/27/2024] Open
Abstract
The syntheses and characterizations of the first bismuthanylborane monomers stabilized only by a donor in D·BH2Bi(SiMe3)2 (D = DMAP 1a, IDipp 1b, IMe41c; DMAP = 4-dimethylaminopyridine, IDipp = 1,3-bis(2,6-diisopropylphenyl)-imidazolin-2-ylidene, IMe4 = 1,3,4,5-tetramethylimidazol-2-ylidene) are presented. All compounds were synthesized by salt metathesis reactions between D·BH2I and KBi(SiMe3)2(THF)0.3 and represent some of the extremely rare compounds featuring a 2c-2e B-Bi bond in a molecular compound. The products display high sensitivity towards air and light and slowly decompose in solution even at -80 °C. By the reaction of IDipp·GaH2(SO3CF3) with KBi(SiMe3)2(THF)0.3, the synthesis of the first bismuthanylgallane IDipp·GaH2Bi(SiMe3)2 (2) stabilized only by a 2-electron donor was possible, as evident from single crystal X-ray structure determination, NMR spectroscopy and mass spectrometry. Computational studies shed light on the stability of the products and the electronic nature of the compounds.
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Affiliation(s)
- Robert Szlosek
- Institute of Inorganic Chemistry, University of Regensburg 93053 Regensburg Germany
| | - Christian Marquardt
- Institute of Inorganic Chemistry, University of Regensburg 93053 Regensburg Germany
| | - Oliver Hegen
- Institute of Inorganic Chemistry, University of Regensburg 93053 Regensburg Germany
| | - Gábor Balázs
- Institute of Inorganic Chemistry, University of Regensburg 93053 Regensburg Germany
| | - Christoph Riesinger
- Institute of Inorganic Chemistry, University of Regensburg 93053 Regensburg Germany
| | - Alexey Y Timoshkin
- Institute of Chemistry, St. Petersburg State University Universitetskaya nab. 7/9 199034 St. Petersburg Russia
| | - Manfred Scheer
- Institute of Inorganic Chemistry, University of Regensburg 93053 Regensburg Germany
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4
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Stoy A, Jürgensen M, Millidoni C, Berthold C, Ramler J, Martínez S, Buchner MR, Lichtenberg C. Bismuth in Dynamic Covalent Chemistry: Access to a Bowl-Type Macrocycle and a Barrel-Type Heptanuclear Complex Cation. Angew Chem Int Ed Engl 2023; 62:e202308293. [PMID: 37522394 DOI: 10.1002/anie.202308293] [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: 06/12/2023] [Revised: 07/28/2023] [Accepted: 07/31/2023] [Indexed: 08/01/2023]
Abstract
Dynamic covalent chemistry (DCvC) is a powerful and widely applied tool in modern synthetic chemistry, which is based on the reversible cleavage and formation of covalent bonds. One of the inherent strengths of this approach is the perspective to reversibly generate in an operationally simple approach novel structural motifs that are difficult or impossible to access with more traditional methods and require multiple bond cleaving and bond forming steps. To date, these fundamentally important synthetic and conceptual challenges in the context of DCvC have predominantly been tackled by exploiting compounds of lighter p-block elements, even though heavier p-block elements show low bond dissociation energies and appear to be ideally suited for this approach. Here we show that a dinuclear organometallic bismuth compound, containing BiMe2 groups that are connected by a thioxanthene linker, readily undergoes selective and reversible cleavage of its Bi-C bonds upon exposure to external stimuli. The exploitation of DCvC in the field of organometallic heavy p-block chemistry grants access to unprecedented macrocyclic and barrel-type oligonuclear compounds.
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Affiliation(s)
- Andreas Stoy
- Department of Chemistry, Philipps-University Marburg, Hans-Meerwein-Str. 4, 35032, Marburg, Germany
| | - Malte Jürgensen
- Institute of Inorganic Chemistry, Julius-Maximilians-University Würzburg, Am Hubland, 97074, Würzburg, Germany
| | - Christina Millidoni
- Department of Chemistry, Philipps-University Marburg, Hans-Meerwein-Str. 4, 35032, Marburg, Germany
| | - Chantsalmaa Berthold
- Department of Chemistry, Philipps-University Marburg, Hans-Meerwein-Str. 4, 35032, Marburg, Germany
| | - Jacqueline Ramler
- Department of Chemistry, Philipps-University Marburg, Hans-Meerwein-Str. 4, 35032, Marburg, Germany
| | - Sebastián Martínez
- Department of Chemistry, Philipps-University Marburg, Hans-Meerwein-Str. 4, 35032, Marburg, Germany
| | - Magnus R Buchner
- Department of Chemistry, Philipps-University Marburg, Hans-Meerwein-Str. 4, 35032, Marburg, Germany
| | - Crispin Lichtenberg
- Department of Chemistry, Philipps-University Marburg, Hans-Meerwein-Str. 4, 35032, Marburg, Germany
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5
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García-Romero Á, Miguel D, Wright DS, Álvarez CM, García-Rodríguez R. Structural and dimensional control of porphyrin capsules using Group 15 tris(3-pyridyl) linkers. Chem Sci 2023; 14:6522-6530. [PMID: 37350820 PMCID: PMC10283503 DOI: 10.1039/d3sc02151c] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2023] [Accepted: 05/16/2023] [Indexed: 06/24/2023] Open
Abstract
While supramolecular chemistry involving organic and metallo-organic host assemblies is a well-established and important field with applications in gas-storage, drug-delivery and the regio- and stereo-control of organic reactions, the use of main group elements in this setting (beyond the second row of the p-block) has been little explored. In this paper we show how periodic trends in the p-block can provide the means for systematic size and structural control in an important class of supramolecular porphyrin-based capsules. The formation of molecular and extended 2D capsule arrangements between the heavier Group 15 tris(3-pyridyl) linkers Sb(3-py)3 and Bi(3-py)3 and the metallo-porphyrins MTPP (M = Zn, Mg; TPP = tetraphenylporphyrin, 3-py = 3-pyridyl) is the first study involving heavier Group 15 pyridyl linkers. The increase in C-E bond length in the E(3-py)3 linkers moving down Group 15 (from E = P, to Sb, to Bi) can be used to alter the dimensions and structural preference of the capsules, as can oxidation of the Group 15 bridgehead atoms themselves. The subtle changes in the dimensions and Lewis acidity of the encapsulates have a dramatic effect on the rate and selectivity of the catalytic oxidative cleavage of organic diols and catalytic oxidation of α-hydroxyketones. By providing simple tools for modulating the chemical and steric properties of the capsules this work should have direct applications for the tuning of the activity and specificity of a range of catalytic systems based on main-group-based capsules of this type.
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Affiliation(s)
- Álvaro García-Romero
- GIR MIOMeT-IU Cinquima-Química Inorgánica Facultad de Ciencias, Universidad de Valladolid Campus Miguel Delibes, 47011 Valladolid Spain
| | - Daniel Miguel
- GIR MIOMeT-IU Cinquima-Química Inorgánica Facultad de Ciencias, Universidad de Valladolid Campus Miguel Delibes, 47011 Valladolid Spain
| | - Dominic S Wright
- Chemistry Department, Cambridge University Lensfield Road Cambridge CB2 1EW UK
| | - Celedonio M Álvarez
- GIR MIOMeT-IU Cinquima-Química Inorgánica Facultad de Ciencias, Universidad de Valladolid Campus Miguel Delibes, 47011 Valladolid Spain
| | - Raúl García-Rodríguez
- GIR MIOMeT-IU Cinquima-Química Inorgánica Facultad de Ciencias, Universidad de Valladolid Campus Miguel Delibes, 47011 Valladolid Spain
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6
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Hollingsworth WM, Hill EA. Exploring the potential role of heavy pnictogen elements in ligand design for new metal-ligand cooperative chemistry. J COORD CHEM 2022. [DOI: 10.1080/00958972.2022.2124863] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
Affiliation(s)
- W. M. Hollingsworth
- Department of Chemistry and Biochemistry, Auburn University, Auburn, AL, USA
| | - E. A. Hill
- Department of Chemistry and Biochemistry, Auburn University, Auburn, AL, USA
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7
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Planas O, Peciukenas V, Leutzsch M, Nöthling N, Pantazis DA, Cornella J. Mechanism of the Aryl-F Bond-Forming Step from Bi(V) Fluorides. J Am Chem Soc 2022; 144:14489-14504. [PMID: 35921250 PMCID: PMC9394462 DOI: 10.1021/jacs.2c01072] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2022] [Indexed: 01/10/2023]
Abstract
In this article, we describe a combined experimental and theoretical mechanistic investigation of the C(sp2)-F bond formation from neutral and cationic high-valent organobismuth(V) fluorides, featuring a dianionic bis-aryl sulfoximine ligand. An exhaustive assessment of the substitution pattern in the ligand, the sulfoximine, and the reactive aryl on neutral triarylbismuth(V) difluorides revealed that formation of dimeric structures in solution promotes facile Ar-F bond formation. Noteworthy, theoretical modeling of reductive elimination from neutral bismuth(V) difluorides agrees with the experimentally determined kinetic and thermodynamic parameters. Moreover, the addition of external fluoride sources leads to inactive octahedral anionic Bi(V) trifluoride salts, which decelerate reductive elimination. On the other hand, a parallel analysis for cationic bismuthonium fluorides revealed the crucial role of tetrafluoroborate anion as fluoride source. Both experimental and theoretical analyses conclude that C-F bond formation occurs through a low-energy five-membered transition-state pathway, where the F anion is delivered to a C(sp2) center, from a BF4 anion, reminiscent of the Balz-Schiemann reaction. The knowledge gathered throughout the investigation permitted a rational assessment of the key parameters of several ligands, identifying the simple sulfone-based ligand family as an improved system for the stoichiometric and catalytic fluorination of arylboronic acid derivatives.
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Affiliation(s)
- Oriol Planas
- Max-Planck-Institut für Kohlenforschung, Kaiser-Wilhelm-Platz 1, Mülheim an der Ruhr 45470, Germany
| | - Vytautas Peciukenas
- Max-Planck-Institut für Kohlenforschung, Kaiser-Wilhelm-Platz 1, Mülheim an der Ruhr 45470, Germany
| | - Markus Leutzsch
- Max-Planck-Institut für Kohlenforschung, Kaiser-Wilhelm-Platz 1, Mülheim an der Ruhr 45470, Germany
| | - Nils Nöthling
- Max-Planck-Institut für Kohlenforschung, Kaiser-Wilhelm-Platz 1, Mülheim an der Ruhr 45470, Germany
| | - Dimitrios A. Pantazis
- Max-Planck-Institut für Kohlenforschung, Kaiser-Wilhelm-Platz 1, Mülheim an der Ruhr 45470, Germany
| | - Josep Cornella
- Max-Planck-Institut für Kohlenforschung, Kaiser-Wilhelm-Platz 1, Mülheim an der Ruhr 45470, Germany
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8
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Shimada S, Yin SF, Choe YK. Synthesis, structure and properties of trivalent and pentavalent tricarbabismatranes. Chem Commun (Camb) 2022; 58:6614-6617. [PMID: 35583950 DOI: 10.1039/d2cc00751g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The first trivalent and pentavalent tricarbabismatranes were synthesized by the reaction of N(CH2{2-LiC6H4})3 with BiCl3 and subsequent reaction with XeF2, respectively. The trivalent bismatrane was easily oxidized by air, while the pentavalent bismatrane difluoride was relatively stable to air. A similar pentavalent bismatrance dichloride was prone to C-Cl bond reductive elimination even at room temperature.
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Affiliation(s)
- Shigeru Shimada
- National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba, Ibaraki 305-8565, Japan.
| | - Shuang-Feng Yin
- National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba, Ibaraki 305-8565, Japan.
| | - Yoong-Kee Choe
- National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba, Ibaraki 305-8565, Japan.
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9
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Morgenstern A, Thomas R, Sharma A, Weber M, Selyshchev O, Milekhin I, Dentel D, Gemming S, Tegenkamp C, Zahn DRT, Mehring M, Salvan G. Deposition of Nanosized Amino Acid Functionalized Bismuth Oxido Clusters on Gold Surfaces. NANOMATERIALS 2022; 12:nano12111815. [PMID: 35683672 PMCID: PMC9182479 DOI: 10.3390/nano12111815] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/05/2022] [Revised: 05/13/2022] [Accepted: 05/19/2022] [Indexed: 11/16/2022]
Abstract
Bismuth compounds are of growing interest with regard to potential applications in catalysis, medicine, and electronics, for which their environmentally benign nature is one of the key factors. One thing that currently hampers the further development of bismuth oxido-based materials, however, is the often low solubility of the precursors, which makes targeted immobilisation on substrates challenging. We present an approach towards the solubilisation of bismuth oxido clusters by introducing an amino carboxylate as a functional group. For this purpose, the bismuth oxido cluster [Bi38O45(NO3)20(dmso)28](NO3)4·4dmso (dmso = dimethyl sulfoxide) was reacted with the sodium salt of tert-butyloxycabonyl (Boc)-protected phenylalanine (L-Phe) to obtain the soluble and chiral nanocluster [Bi38O45(Boc–Phe–O)24(dmso)9]. The exchange of the nitrates by the amino carboxylates was proven by nuclear magnetic resonance, Fourier-transform infrared spectroscopy, as well as elemental analysis and X-ray photoemission spectroscopy. The solubility of the bismuth oxido cluster in a protic as well as an aprotic polar organic solvent and the growth mode of the clusters upon spin, dip, and drop coating on gold surfaces were studied by a variety of microscopy, as well as spectroscopic techniques. In all cases, the bismuth oxido clusters form crystalline agglomerations with size, height, and distribution on the substrate that can be controlled by the choice of the solvent and of the deposition method.
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Affiliation(s)
- Annika Morgenstern
- Semiconductor Physics, Institute of Physics, Chemnitz University of Technology, 09107 Chemnitz, Germany; (A.M.); (A.S.); (O.S.); (I.M.); (D.R.T.Z.)
| | - Rico Thomas
- Coordination Chemistry, Institute of Chemistry, Chemnitz University of Technology, 09107 Chemnitz, Germany; (R.T.); (M.W.)
| | - Apoorva Sharma
- Semiconductor Physics, Institute of Physics, Chemnitz University of Technology, 09107 Chemnitz, Germany; (A.M.); (A.S.); (O.S.); (I.M.); (D.R.T.Z.)
| | - Marcus Weber
- Coordination Chemistry, Institute of Chemistry, Chemnitz University of Technology, 09107 Chemnitz, Germany; (R.T.); (M.W.)
- Center of Materials, Architectures and Integration of Nanomembranes, Chemnitz University of Technology, 09126 Chemnitz, Germany;
| | - Oleksandr Selyshchev
- Semiconductor Physics, Institute of Physics, Chemnitz University of Technology, 09107 Chemnitz, Germany; (A.M.); (A.S.); (O.S.); (I.M.); (D.R.T.Z.)
| | - Ilya Milekhin
- Semiconductor Physics, Institute of Physics, Chemnitz University of Technology, 09107 Chemnitz, Germany; (A.M.); (A.S.); (O.S.); (I.M.); (D.R.T.Z.)
| | - Doreen Dentel
- Solid Surface Analysis, Institute of Physics, Chemnitz University of Technology, 09107 Chemnitz, Germany; (D.D.); (C.T.)
| | - Sibylle Gemming
- Center of Materials, Architectures and Integration of Nanomembranes, Chemnitz University of Technology, 09126 Chemnitz, Germany;
- Theoretical Physics of Quantum Mechanical Processes and Systems, Institute of Physics, Chemnitz University of Technology, 09107 Chemnitz, Germany
| | - Christoph Tegenkamp
- Solid Surface Analysis, Institute of Physics, Chemnitz University of Technology, 09107 Chemnitz, Germany; (D.D.); (C.T.)
| | - Dietrich R. T. Zahn
- Semiconductor Physics, Institute of Physics, Chemnitz University of Technology, 09107 Chemnitz, Germany; (A.M.); (A.S.); (O.S.); (I.M.); (D.R.T.Z.)
- Center of Materials, Architectures and Integration of Nanomembranes, Chemnitz University of Technology, 09126 Chemnitz, Germany;
| | - Michael Mehring
- Coordination Chemistry, Institute of Chemistry, Chemnitz University of Technology, 09107 Chemnitz, Germany; (R.T.); (M.W.)
- Center of Materials, Architectures and Integration of Nanomembranes, Chemnitz University of Technology, 09126 Chemnitz, Germany;
- Correspondence: (M.M.); (G.S.)
| | - Georgeta Salvan
- Semiconductor Physics, Institute of Physics, Chemnitz University of Technology, 09107 Chemnitz, Germany; (A.M.); (A.S.); (O.S.); (I.M.); (D.R.T.Z.)
- Center of Materials, Architectures and Integration of Nanomembranes, Chemnitz University of Technology, 09126 Chemnitz, Germany;
- Correspondence: (M.M.); (G.S.)
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10
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Kuziola J, Magre M, Nöthling N, Cornella J. Synthesis and Structure of Mono-, Di-, and Trinuclear Fluorotriarylbismuthonium Cations. Organometallics 2022; 41:1754-1762. [PMID: 36156903 PMCID: PMC9490813 DOI: 10.1021/acs.organomet.2c00135] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
![]()
A series of cationic
fluorotriarylbismuthonium salts bearing differently
substituted aryl groups (Ar = 9,9-Me2-9H-xanthene, Ph,
Mes, and 3,5-tBu-C6H3) have
been synthesized and characterized. While the presence of simple phenyl
substituents around the Bi center results in a polymeric structure
with three Bi centers in the repeating monomer, substituents at the ortho- and meta-positions lead to cationic
mono- and dinuclear fluorobismuthonium complexes, respectively. Preparation
of all compounds is accomplished by fluoride abstraction from the
parent triaryl Bi(V) difluorides using NaBArF (BArF– = B[C6H3-3,5-(CF3)2]4–). Structural
parameters were obtained via single crystal X-ray diffraction (XRD),
and their behavior in solution was studied by NMR spectroscopy. Trinuclear
and binuclear complexes are held together through one bridging fluoride
(μ-F) between two Bi(V) centers. In contrast, the presence of
Me groups in both ortho-positions of the aryl ring
provides the adequate steric encumbrance to isolate a unique mononuclear
nonstabilized fluorotriarylbismuthonium cation. This compound features
a distorted tetrahedral geometry and is remarkably stable at room
temperature both in solution (toluene, benzene and THF) and in the
solid state.
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Affiliation(s)
- Jennifer Kuziola
- Max-Planck-Institut für Kohlenforschung, Kaiser-Wilhelm-Platz 1, Mülheim an der Ruhr 45470, Germany
| | - Marc Magre
- Max-Planck-Institut für Kohlenforschung, Kaiser-Wilhelm-Platz 1, Mülheim an der Ruhr 45470, Germany
| | - Nils Nöthling
- Max-Planck-Institut für Kohlenforschung, Kaiser-Wilhelm-Platz 1, Mülheim an der Ruhr 45470, Germany
| | - Josep Cornella
- Max-Planck-Institut für Kohlenforschung, Kaiser-Wilhelm-Platz 1, Mülheim an der Ruhr 45470, Germany
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11
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Tanbouza N, Caron L, Khoshoei A, Ollevier T. Catalytic Bismuth(V)-Mediated Oxidation of Hydrazones into Diazo Compounds. Org Lett 2022; 24:2675-2678. [PMID: 35349286 DOI: 10.1021/acs.orglett.2c00762] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
A new bismuth(V) oxidative catalytic system has been developed and applied for the conversion of hydrazones into diazo compounds. With the use of low catalytic amounts of Ph3Bi and AcOH with NaBO3·H2O as a terminal oxidant, the in situ formation of Ph3Bi(OAc)2 is capable of oxidizing hydrazones in excellent yields. The reaction was applied for the synthesis of diazocarbonyls and 2,2,2-trifluoromethyl diazoalkanes in good to excellent yields.
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Affiliation(s)
- Nour Tanbouza
- Département de Chimie, Université Laval, 1045 avenue de la Médecine, Québec, Québec G1V 0A6, Canada
| | - Laurent Caron
- Département de Chimie, Université Laval, 1045 avenue de la Médecine, Québec, Québec G1V 0A6, Canada
| | - Azadeh Khoshoei
- Département de Chimie, Université Laval, 1045 avenue de la Médecine, Québec, Québec G1V 0A6, Canada
| | - Thierry Ollevier
- Département de Chimie, Université Laval, 1045 avenue de la Médecine, Québec, Québec G1V 0A6, Canada
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12
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Moon HW, Cornella J. Bismuth Redox Catalysis: An Emerging Main-Group Platform for Organic Synthesis. ACS Catal 2022; 12:1382-1393. [PMID: 35096470 PMCID: PMC8787757 DOI: 10.1021/acscatal.1c04897] [Citation(s) in RCA: 74] [Impact Index Per Article: 37.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2021] [Revised: 12/09/2021] [Indexed: 12/11/2022]
Abstract
![]()
Bismuth has recently
been shown to be able to maneuver between
different oxidation states, enabling access to unique redox cycles
that can be harnessed in the context of organic synthesis. Indeed,
various catalytic Bi redox platforms have been discovered and revealed
emerging opportunities in the field of main group redox catalysis.
The goal of this perspective is to provide an overview of the synthetic
methodologies that have been developed to date, which capitalize on
the Bi redox cycling. Recent catalytic methods via low-valent Bi(II)/Bi(III),
Bi(I)/Bi(III), and high-valent Bi(III)/Bi(V) redox couples are covered
as well as their underlying mechanisms and key intermediates. In addition,
we illustrate different design strategies stabilizing low-valent and
high-valent bismuth species, and highlight the characteristic reactivity
of bismuth complexes, compared to the lighter p-block
and d-block elements. Although it is not redox catalysis
in nature, we also discuss a recent example of non-Lewis acid, redox-neutral
Bi(III) catalysis proceeding through catalytic organometallic steps.
We close by discussing opportunities and future directions in this
emerging field of catalysis. We hope that this Perspective will provide
synthetic chemists with guiding principles for the future development
of catalytic transformations employing bismuth.
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Affiliation(s)
- Hye Won Moon
- Max-Planck-Institut für Kohlenforschung, Kaiser-Wilhelm-Platz 1, Mülheim an der Ruhr, 45470, Germany
| | - Josep Cornella
- Max-Planck-Institut für Kohlenforschung, Kaiser-Wilhelm-Platz 1, Mülheim an der Ruhr, 45470, Germany
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13
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Magre M, Cornella J. Redox-Neutral Organometallic Elementary Steps at Bismuth: Catalytic Synthesis of Aryl Sulfonyl Fluorides. J Am Chem Soc 2021; 143:21497-21502. [PMID: 34914387 PMCID: PMC8719321 DOI: 10.1021/jacs.1c11463] [Citation(s) in RCA: 40] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
A Bi-catalyzed synthesis of sulfonyl fluorides from the corresponding (hetero)aryl boronic acids is presented. We demonstrate that the organobismuth(III) catalysts bearing a bis-aryl sulfone ligand backbone revolve through different canonical organometallic steps within the catalytic cycle without modifying the oxidation state. All steps have been validated, including the catalytic insertion of SO2 into Bi-C bonds, leading to a structurally unique O-bound bismuth sulfinate complex. The catalytic protocol affords excellent yields for a wide range of aryl and heteroaryl boronic acids, displaying a wide functional group tolerance.
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Affiliation(s)
- Marc Magre
- Max-Planck-Institut für Kohlenforschung, Kaiser-Wilhelm-Platz 1, Mülheim an der Ruhr, 45470, Germany
| | - Josep Cornella
- Max-Planck-Institut für Kohlenforschung, Kaiser-Wilhelm-Platz 1, Mülheim an der Ruhr, 45470, Germany
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14
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Ritter C, Bergunde J, Weigend F, Hänisch C. Structure and Reactivity of Alkaline Metal Bis(amido)diazadiarsetidinides. Z Anorg Allg Chem 2021. [DOI: 10.1002/zaac.202100214] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Christian Ritter
- Department of Chemistry Philipps-Universität Marburg Hans-Meerwein-Straße 4 35032 Marburg Germany
- Wissenschaftliches Zentrum für Materialwissenschaften (WZMW) Philipps-Universität Marburg Hans-Meerwein-Straße 6 35032 Marburg Germany
| | - Jakob Bergunde
- Department of Chemistry Philipps-Universität Marburg Hans-Meerwein-Straße 4 35032 Marburg Germany
| | - Florian Weigend
- Department of Chemistry Philipps-Universität Marburg Hans-Meerwein-Straße 4 35032 Marburg Germany
| | - Carsten Hänisch
- Department of Chemistry Philipps-Universität Marburg Hans-Meerwein-Straße 4 35032 Marburg Germany
- Wissenschaftliches Zentrum für Materialwissenschaften (WZMW) Philipps-Universität Marburg Hans-Meerwein-Straße 6 35032 Marburg Germany
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