51
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Tomás‐Mendivil E, Devillard M, Regnier V, Pecaut J, Martin D. Air‐Stable Oxyallyl Patterns and a Switchable N‐Heterocyclic Carbene. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202002669] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Affiliation(s)
| | - Marc Devillard
- Univ. Grenoble Alpes CNRS DCM 38000 Grenoble France
- Current address: Université de Rennes CNRS, ISCR, UMR6226 35042 Rennes France
| | | | - Jacques Pecaut
- Univ. Grenoble Alpes, CEA CNRS, INAC-SyMMES, UMR 5819 38000 Grenoble France
| | - David Martin
- Univ. Grenoble Alpes CNRS DCM 38000 Grenoble France
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52
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Hölzel T, Ganter C. Influence of ring substituents on the electronic properties of 1,2,4-triazolylidenes. J Organomet Chem 2020. [DOI: 10.1016/j.jorganchem.2020.121234] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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53
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Tomás-Mendivil E, Devillard M, Regnier V, Pecaut J, Martin D. Air-Stable Oxyallyl Patterns and a Switchable N-Heterocyclic Carbene. Angew Chem Int Ed Engl 2020; 59:11516-11520. [PMID: 32277582 DOI: 10.1002/anie.202002669] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2020] [Revised: 04/10/2020] [Indexed: 01/22/2023]
Abstract
Oxyallyl derivatives are typically elusive compounds. Even recently reported "stabilized" 1,3-diaminooxyallyl species are still highly reactive and have short lifetimes at room temperature. Herein, we report the synthesis and preliminary study of mesoionic pyrimidine derivatives that feature 1,3-bis(dimethylamino)oxyallyl patterns with an unprecedented level of stabilization. The latter are not only insensitive towards air and moisture, but they are also compatible with the formation of an ancillary stable N-heterocyclic carbene moiety. As the oxyallyl pattern is proton-responsive, it allows the reversible switching of the electronic properties of the carbene, as a ligand.
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Affiliation(s)
| | - Marc Devillard
- Univ. Grenoble Alpes, CNRS, DCM, 38000, Grenoble, France.,Current address: Université de Rennes, CNRS, ISCR, UMR6226, 35042, Rennes, France
| | | | - Jacques Pecaut
- Univ. Grenoble Alpes, CEA, CNRS, INAC-SyMMES, UMR 5819, 38000, Grenoble, France
| | - David Martin
- Univ. Grenoble Alpes, CNRS, DCM, 38000, Grenoble, France
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54
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Jazzar R, Soleilhavoup M, Bertrand G. Cyclic (Alkyl)- and (Aryl)-(amino)carbene Coinage Metal Complexes and Their Applications. Chem Rev 2020; 120:4141-4168. [DOI: 10.1021/acs.chemrev.0c00043] [Citation(s) in RCA: 131] [Impact Index Per Article: 32.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Rodolphe Jazzar
- UCSD-CNRS Joint Research Laboratory (UMI 3555), Department of Chemistry and Biochemistry, University of California, San Diego, La Jolla, California 92093-0358, United States
| | - Michele Soleilhavoup
- UCSD-CNRS Joint Research Laboratory (UMI 3555), Department of Chemistry and Biochemistry, University of California, San Diego, La Jolla, California 92093-0358, United States
| | - Guy Bertrand
- UCSD-CNRS Joint Research Laboratory (UMI 3555), Department of Chemistry and Biochemistry, University of California, San Diego, La Jolla, California 92093-0358, United States
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55
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Yazdani S, Junor GP, Peltier JL, Gembicky M, Jazzar R, Grotjahn DB, Bertrand G. Influence of Carbene and Phosphine Ligands on the Catalytic Activity of Gold Complexes in the Hydroamination and Hydrohydrazination of Alkynes. ACS Catal 2020. [DOI: 10.1021/acscatal.0c01352] [Citation(s) in RCA: 32] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Affiliation(s)
- Sima Yazdani
- UCSD-CNRS Joint Research Laboratory (UMI 3555), Department of Chemistry and Biochemistry, University of California, La Jolla, San Diego, California 92093-0358, United States
- Department of Chemistry and Biochemistry, San Diego State University, 5500 Campanile Drive, San Diego, California 92182-1030, United States
| | - Glen P. Junor
- UCSD-CNRS Joint Research Laboratory (UMI 3555), Department of Chemistry and Biochemistry, University of California, La Jolla, San Diego, California 92093-0358, United States
| | - Jesse L. Peltier
- UCSD-CNRS Joint Research Laboratory (UMI 3555), Department of Chemistry and Biochemistry, University of California, La Jolla, San Diego, California 92093-0358, United States
| | - Milan Gembicky
- UCSD-CNRS Joint Research Laboratory (UMI 3555), Department of Chemistry and Biochemistry, University of California, La Jolla, San Diego, California 92093-0358, United States
| | - Rodolphe Jazzar
- UCSD-CNRS Joint Research Laboratory (UMI 3555), Department of Chemistry and Biochemistry, University of California, La Jolla, San Diego, California 92093-0358, United States
| | - Douglas B. Grotjahn
- Department of Chemistry and Biochemistry, San Diego State University, 5500 Campanile Drive, San Diego, California 92182-1030, United States
| | - Guy Bertrand
- UCSD-CNRS Joint Research Laboratory (UMI 3555), Department of Chemistry and Biochemistry, University of California, La Jolla, San Diego, California 92093-0358, United States
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56
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Kleinpeter E, Koch A. The 13 C chemical shift and the anisotropy effect of the carbene electron-deficient centre: Simple means to characterize the electron distribution of carbenes. MAGNETIC RESONANCE IN CHEMISTRY : MRC 2020; 58:280-292. [PMID: 31828861 DOI: 10.1002/mrc.4979] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/29/2019] [Revised: 12/04/2019] [Accepted: 12/05/2019] [Indexed: 06/10/2023]
Abstract
Both the 13 C chemical shift and the calculated anisotropy effect (spatial magnetic properties) of the electron-deficient centre of stable, crystalline, and structurally characterized carbenes have been employed to unequivocally characterize potential resonance contributors to the present mesomerism (carbene, ylide, betaine, and zwitter ion) and to determine quantitatively the electron deficiency of the corresponding carbene carbon atom. Prior to that, both structures and 13 C chemical shifts were calculated and compared with the experimental δ(13 C)/ppm values and geometry parameters (as a quality criterion for obtained structures).
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Affiliation(s)
| | - Andreas Koch
- Institut für Chemie, Universität Potsdam, Potsdam, Germany
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57
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Dutta S, De S, Bose S, Mahal E, Koley D. Cooperative Donor-Acceptor Interactions in Stabilizing Carbene-Borane and Carbene-Alane Compounds: A Theoretical Insight. Eur J Inorg Chem 2020. [DOI: 10.1002/ejic.201901163] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Sayan Dutta
- Department of Chemical Sciences; Indian Institute of Science Education and Research (IISER) Kolkata; 741 246 Mohanpur India
| | - Sriman De
- Department of Chemical Sciences; Indian Institute of Science Education and Research (IISER) Kolkata; 741 246 Mohanpur India
| | - Sanjoy Bose
- Department of Chemical Sciences; Indian Institute of Science Education and Research (IISER) Kolkata; 741 246 Mohanpur India
| | - Eti Mahal
- Department of Chemical Sciences; Indian Institute of Science Education and Research (IISER) Kolkata; 741 246 Mohanpur India
| | - Debasis Koley
- Department of Chemical Sciences; Indian Institute of Science Education and Research (IISER) Kolkata; 741 246 Mohanpur India
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58
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Manar KK, Porwal VK, Kamte RS, Adhikari M, Thakur SK, Bawari D, Choudhury AR, Singh S. Reactions of a BICAAC with hydroboranes: propensity for Lewis adduct formation and carbene insertion into the B-H bond. Dalton Trans 2019; 48:17472-17478. [PMID: 31714564 DOI: 10.1039/c9dt03382c] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The reactivity of a bicyclic (alkyl)(amino)carbene (BICAAC) towards different boranes has been examined in the present work. The reactions with boranes BX3·SMe2 (X = H, Cl, Br), BF3·OEt2 and BCl3 yield Lewis adducts [BICAAC·BH3] (1), [BICAAC·BHCl2] (2), [BICAAC·BH2Cl] (3), [BICAAC·BF3] (4), [BICAAC·BCl3] (5) and [BICAAC·BBr3] (6) respectively, whereas more hydridic boranes, 9-borabicyclo[3.3.1]nonane (9-BBN) and catecholborane (HBcat), enable the insertion of the carbene carbon into the B-H bond to form [BICAAC(H)-(9-BBN)] (7) and [BICAAC(H)-Bcat] (8). These complexes are the first examples of BICAAC-boron compounds and have been characterized using IR, multinuclear NMR spectroscopy, HRMS spectrometry and single crystal X-ray diffraction. Computational analyses were also performed to gain insight into the mechanism of B-H bond activation and adduct formation. Furthermore, the reactions of the BICAAC with boranes have been compared with the known reactions of CAACs and NHCs.
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Affiliation(s)
- Krishna K Manar
- Department of Chemical Sciences, Indian Institute of Science Education and Research Mohali, Knowledge City, Sector 81, SAS Nagar, Mohali 140306, Punjab, India.
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59
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Logdi R, Bag A, Tiwari AK. DFT based engineering of N-heterocyclic carbenes to exacerbate its activity for SO2 fixation and storage. J Mol Graph Model 2019; 93:107437. [DOI: 10.1016/j.jmgm.2019.08.014] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2019] [Revised: 08/13/2019] [Accepted: 08/16/2019] [Indexed: 01/01/2023]
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60
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Wang B, Koshino K, Kinjo R. Bicyclic (amino)(borata)carbene derived from diazadiborinine and isonitrile. Chem Commun (Camb) 2019; 55:13012-13014. [PMID: 31603151 DOI: 10.1039/c9cc06453b] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
The reaction of 1,4,2,5-diazadiborinine (1) with two equivalents of an aryl isonitrile afforded a bicyclic product containing an indole unit (2) or ketenimine moiety (3), suggesting the generation of a B,N-carbene intermediate formed via a [4+2] cycloaddition reaction in the initial step. The employment of the tolyl(phenyl isonitrile)gold complex (PhNCAuTol) as the substrate allowed the bicyclic (amino)(borata)carbene gold complexes (4, 5) to be accessed.
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Affiliation(s)
- Baolin Wang
- Division of Chemistry and Biological Chemistry, School of Physical and Mathematical Sciences, Nanyang Technological University, Nanyang Link 21, Singapore 637371, Singapore.
| | - Kota Koshino
- Division of Chemistry and Biological Chemistry, School of Physical and Mathematical Sciences, Nanyang Technological University, Nanyang Link 21, Singapore 637371, Singapore.
| | - Rei Kinjo
- Division of Chemistry and Biological Chemistry, School of Physical and Mathematical Sciences, Nanyang Technological University, Nanyang Link 21, Singapore 637371, Singapore.
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61
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Pichon D, Soleilhavoup M, Morvan J, Junor GP, Vives T, Crévisy C, Lavallo V, Campagne JM, Mauduit M, Jazzar R, Bertrand G. The debut of chiral cyclic (alkyl)(amino)carbenes (CAACs) in enantioselective catalysis. Chem Sci 2019; 10:7807-7811. [PMID: 31588330 PMCID: PMC6761915 DOI: 10.1039/c9sc02810b] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2019] [Accepted: 06/26/2019] [Indexed: 12/14/2022] Open
Abstract
The popularity of NHCs in transition metal catalysis has prompted the development of chiral versions as electron-rich neutral stereodirecting ancillary ligands for enantioselective transformations. Herein we demonstrate that cyclic (alkyl)(amino)carbene (CAAC) ligands can also engage in asymmetric transformations, thereby expanding the toolbox of available chiral carbenes.
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Affiliation(s)
- Delphine Pichon
- Ecole Nationale Supérieure de Chimie de Rennes , Univ Rennes , CNRS , ISCR - UMR 6226 , F-35000 Rennes , France .
| | - Michele Soleilhavoup
- UCSD-CNRS Joint Research Chemistry Laboratory (UMI 3555) , University of California San Diego , La Jolla , California 92093-0353 , USA . ;
| | - Jennifer Morvan
- Ecole Nationale Supérieure de Chimie de Rennes , Univ Rennes , CNRS , ISCR - UMR 6226 , F-35000 Rennes , France .
| | - Glen P Junor
- UCSD-CNRS Joint Research Chemistry Laboratory (UMI 3555) , University of California San Diego , La Jolla , California 92093-0353 , USA . ;
| | - Thomas Vives
- Ecole Nationale Supérieure de Chimie de Rennes , Univ Rennes , CNRS , ISCR - UMR 6226 , F-35000 Rennes , France .
| | - Christophe Crévisy
- Ecole Nationale Supérieure de Chimie de Rennes , Univ Rennes , CNRS , ISCR - UMR 6226 , F-35000 Rennes , France .
| | - Vincent Lavallo
- UCSD-CNRS Joint Research Chemistry Laboratory (UMI 3555) , University of California San Diego , La Jolla , California 92093-0353 , USA . ;
| | - Jean-Marc Campagne
- Institut Charles Gerhardt , UMR 5253 CNRS-UM2-UM1-ENSCM , 8 Rue l'Ecole Normale , 34296 Montpellier , France
| | - Marc Mauduit
- Ecole Nationale Supérieure de Chimie de Rennes , Univ Rennes , CNRS , ISCR - UMR 6226 , F-35000 Rennes , France .
| | - Rodolphe Jazzar
- UCSD-CNRS Joint Research Chemistry Laboratory (UMI 3555) , University of California San Diego , La Jolla , California 92093-0353 , USA . ;
| | - Guy Bertrand
- UCSD-CNRS Joint Research Chemistry Laboratory (UMI 3555) , University of California San Diego , La Jolla , California 92093-0353 , USA . ;
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62
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Nikovskiy IA, Spiridonov KA, Zakharova DV, Platonova EO, Pavlov AA, Nelyubina YV, Polezhaev AV. Ortho-lithiation of N-aryl ferrocenylmethanimines. Inorganica Chim Acta 2019. [DOI: 10.1016/j.ica.2019.118976] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
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63
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Kundu S, Sinhababu S, Chandrasekhar V, Roesky HW. Stable cyclic (alkyl)(amino)carbene (cAAC) radicals with main group substituents. Chem Sci 2019; 10:4727-4741. [PMID: 31160949 PMCID: PMC6510188 DOI: 10.1039/c9sc01351b] [Citation(s) in RCA: 92] [Impact Index Per Article: 18.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2019] [Accepted: 04/06/2019] [Indexed: 11/21/2022] Open
Abstract
Recent attempts to isolate cyclic (alkyl)(amino)carbene stabilized radicals of p-block elements have been described here.
Isolation and characterization of stable radicals has been a long-pursued quest. While there has been some progress in this field particularly with respect to carbon, radicals involving heavier p-block elements are still considerably sparse. In this review we describe our recent successful efforts on the isolation of stable p-block element radicals particularly those involving aluminum, silicon, and phosphorus.
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Affiliation(s)
- Subrata Kundu
- Universität Göttingen , Institut für Anorganische Chemie , Tammannstrasse 4 , D-37077 , Göttingen , Germany .
| | - Soumen Sinhababu
- Universität Göttingen , Institut für Anorganische Chemie , Tammannstrasse 4 , D-37077 , Göttingen , Germany .
| | - Vadapalli Chandrasekhar
- Universität Göttingen , Institut für Anorganische Chemie , Tammannstrasse 4 , D-37077 , Göttingen , Germany . .,Tata Institute of Fundamental Research Hyderabad , Hyderabad 500107 , India.,Department of Chemistry , Indian Institute of Technology Kanpur , Kanpur 208016 , India .
| | - Herbert W Roesky
- Universität Göttingen , Institut für Anorganische Chemie , Tammannstrasse 4 , D-37077 , Göttingen , Germany .
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64
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Danopoulos AA, Simler T, Braunstein P. N-Heterocyclic Carbene Complexes of Copper, Nickel, and Cobalt. Chem Rev 2019; 119:3730-3961. [PMID: 30843688 DOI: 10.1021/acs.chemrev.8b00505] [Citation(s) in RCA: 269] [Impact Index Per Article: 53.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
The emergence of N-heterocyclic carbenes as ligands across the Periodic Table had an impact on various aspects of the coordination, organometallic, and catalytic chemistry of the 3d metals, including Cu, Ni, and Co, both from the fundamental viewpoint but also in applications, including catalysis, photophysics, bioorganometallic chemistry, materials, etc. In this review, the emergence, development, and state of the art in these three areas are described in detail.
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Affiliation(s)
- Andreas A Danopoulos
- Laboratory of Inorganic Chemistry , National and Kapodistrian University of Athens , Panepistimiopolis Zografou , Athens GR 15771 , Greece.,Université de Strasbourg, CNRS, Institut de Chimie UMR 7177 , Laboratoire de Chimie de Coordination , Strasbourg 67081 Cedex , France
| | - Thomas Simler
- Université de Strasbourg, CNRS, Institut de Chimie UMR 7177 , Laboratoire de Chimie de Coordination , Strasbourg 67081 Cedex , France
| | - Pierre Braunstein
- Université de Strasbourg, CNRS, Institut de Chimie UMR 7177 , Laboratoire de Chimie de Coordination , Strasbourg 67081 Cedex , France
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65
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Regnier V, Romero EA, Molton F, Jazzar R, Bertrand G, Martin D. What Are the Radical Intermediates in Oxidative N-Heterocyclic Carbene Organocatalysis? J Am Chem Soc 2018; 141:1109-1117. [PMID: 30561990 DOI: 10.1021/jacs.8b11824] [Citation(s) in RCA: 72] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
The oxidation of the Breslow intermediate resulting from the addition of an N-heterocyclic carbene (NHC) to benzaldehyde triggers a fast deprotonation, followed by a second electron transfer, directly affording the corresponding acylium at E > -0.8 V (versus Fc/Fc+). Similarly, the oxidation of the cinnamaldehyde analogue occurs at an even higher potential and is not a reversible electrochemical process. As a whole, and contrary to previous beliefs, it is demonstrated that Breslow intermediates, which are the key intermediates in NHC-catalyzed transformations of aldehydes, cannot undergo a single electron transfer (SET) with mild oxidants ( E < -1.0 V). Moreover, the corresponding enol radical cations are ruled out as relevant intermediates. It is proposed that oxidative NHC-catalyzed radical transformations of enals proceed either through SET from the corresponding electron-rich enolate or through coupled electron-proton transfer from the enol, in any case generating neutral capto-dative radicals. Relevant electrochemical surrogates of these paramagnetic species have been isolated.
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Affiliation(s)
| | - Erik A Romero
- UMI CNRS 3555, Department of Chemistry and Biochemistry , University of California, San Diego , La Jolla , California 92093-0343 , United States
| | - Florian Molton
- Univ. Grenoble Alpes , CNRS, DCM , 38000 Grenoble , France
| | - Rodolphe Jazzar
- UMI CNRS 3555, Department of Chemistry and Biochemistry , University of California, San Diego , La Jolla , California 92093-0343 , United States
| | - Guy Bertrand
- UMI CNRS 3555, Department of Chemistry and Biochemistry , University of California, San Diego , La Jolla , California 92093-0343 , United States
| | - David Martin
- Univ. Grenoble Alpes , CNRS, DCM , 38000 Grenoble , France
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66
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Herndon JW. The chemistry of the carbon-transition metal double and triple bond: Annual survey covering the year 2017. Coord Chem Rev 2018. [DOI: 10.1016/j.ccr.2018.08.007] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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67
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Brüggemann P, Wahl M, Schwengers S, Buhl H, Ganter C. Access to a Cationic, Electron-Poor N-Heterocyclic Carbene with a Quinazolinium Core by Postsynthetic Modification of Related Neutral Derivatives. Organometallics 2018. [DOI: 10.1021/acs.organomet.8b00615] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Affiliation(s)
- Peter Brüggemann
- Institut für Anorganische Chemie, Abteilung Metallorganische Chemie, Heinrich-Heine-Universität Düsseldorf, Universitätsstrasse 1, 40225 Düsseldorf, Germany
| | - Michaela Wahl
- Institut für Anorganische Chemie, Abteilung Metallorganische Chemie, Heinrich-Heine-Universität Düsseldorf, Universitätsstrasse 1, 40225 Düsseldorf, Germany
| | - Sebastian Schwengers
- Institut für Anorganische Chemie, Abteilung Metallorganische Chemie, Heinrich-Heine-Universität Düsseldorf, Universitätsstrasse 1, 40225 Düsseldorf, Germany
| | - Hannes Buhl
- Institut für Anorganische Chemie, Abteilung Metallorganische Chemie, Heinrich-Heine-Universität Düsseldorf, Universitätsstrasse 1, 40225 Düsseldorf, Germany
| | - Christian Ganter
- Institut für Anorganische Chemie, Abteilung Metallorganische Chemie, Heinrich-Heine-Universität Düsseldorf, Universitätsstrasse 1, 40225 Düsseldorf, Germany
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68
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Kim Y, Lee E. Stable Organic Radicals Derived from N‐Heterocyclic Carbenes. Chemistry 2018; 24:19110-19121. [PMID: 30058298 DOI: 10.1002/chem.201801560] [Citation(s) in RCA: 54] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2018] [Revised: 06/23/2018] [Indexed: 11/11/2022]
Affiliation(s)
- Youngsuk Kim
- Center for Self-assembly and ComplexityInstitute for Basic Science (IBS) Pohang 37673 Republic of Korea
- Department of ChemistryPohang University of Science and Technology Pohang 37673 Republic of Korea
| | - Eunsung Lee
- Center for Self-assembly and ComplexityInstitute for Basic Science (IBS) Pohang 37673 Republic of Korea
- Department of ChemistryPohang University of Science and Technology Pohang 37673 Republic of Korea
- Division of Advanced Materials SciencePohang University of Science and Technology Pohang 37673 Republic of Korea
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69
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Bharadwaz P, Dewhurst RD, Phukan AK. Metal-Free Activation of Enthalpically Strong Bonds: Unraveling the Potential of Hitherto Unexplored Singlet Carbenes. Adv Synth Catal 2018. [DOI: 10.1002/adsc.201800873] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Priyam Bharadwaz
- Department of Chemical Sciences; Tezpur University, Napam -; 784 028 Assam India
| | - Rian D. Dewhurst
- Institut für Anorganische Chemie and Institute for Sustainable Chemistry & Catalysis with Boron; Julius-Maximilians-Universität Würzburg; Am Hubland 97074 Würzburg Germany
| | - Ashwini K. Phukan
- Department of Chemical Sciences; Tezpur University, Napam -; 784 028 Assam India
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70
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Romero EA, Zhao T, Nakano R, Hu X, Wu Y, Jazzar R, Bertrand G. Tandem copper hydride–Lewis pair catalysed reduction of carbon dioxide into formate with dihydrogen. Nat Catal 2018. [DOI: 10.1038/s41929-018-0140-3] [Citation(s) in RCA: 66] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
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71
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Weinstein CM, Junor GP, Tolentino DR, Jazzar R, Melaimi M, Bertrand G. Highly Ambiphilic Room Temperature Stable Six-Membered Cyclic (Alkyl)(amino)carbenes. J Am Chem Soc 2018; 140:9255-9260. [PMID: 29954178 DOI: 10.1021/jacs.8b05518] [Citation(s) in RCA: 81] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Cyclic (alkyl)(amino)carbenes with a six-membered backbone were prepared. Compared to their five-membered analogues, they feature increased % Vbur and enhanced donor and acceptor properties, as evidenced by the observed n → π* transition trailing into the visible region. The high ambiphilic character even allows for the intramolecular insertion of the carbene into an unactivated C(sp3)-H bond. When used as ligands, they outcompete the five-membered analogues in the palladium-mediated α-arylation of ketones with aryl chlorides.
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Affiliation(s)
- Cory M Weinstein
- UCSD-CNRS Joint Research Laboratory (UMI 3555), Department of Chemistry and Biochemistry , University of California, San Diego , La Jolla , California 92093-0358 , United States
| | - Glen P Junor
- UCSD-CNRS Joint Research Laboratory (UMI 3555), Department of Chemistry and Biochemistry , University of California, San Diego , La Jolla , California 92093-0358 , United States
| | - Daniel R Tolentino
- UCSD-CNRS Joint Research Laboratory (UMI 3555), Department of Chemistry and Biochemistry , University of California, San Diego , La Jolla , California 92093-0358 , United States
| | - Rodolphe Jazzar
- UCSD-CNRS Joint Research Laboratory (UMI 3555), Department of Chemistry and Biochemistry , University of California, San Diego , La Jolla , California 92093-0358 , United States
| | - Mohand Melaimi
- UCSD-CNRS Joint Research Laboratory (UMI 3555), Department of Chemistry and Biochemistry , University of California, San Diego , La Jolla , California 92093-0358 , United States
| | - Guy Bertrand
- UCSD-CNRS Joint Research Laboratory (UMI 3555), Department of Chemistry and Biochemistry , University of California, San Diego , La Jolla , California 92093-0358 , United States
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72
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Nesterov V, Reiter D, Bag P, Frisch P, Holzner R, Porzelt A, Inoue S. NHCs in Main Group Chemistry. Chem Rev 2018; 118:9678-9842. [PMID: 29969239 DOI: 10.1021/acs.chemrev.8b00079] [Citation(s) in RCA: 518] [Impact Index Per Article: 86.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
Since the discovery of the first stable N-heterocyclic carbene (NHC) in the beginning of the 1990s, these divalent carbon species have become a common and available class of compounds, which have found numerous applications in academic and industrial research. Their important role as two-electron donor ligands, especially in transition metal chemistry and catalysis, is difficult to overestimate. In the past decade, there has been tremendous research attention given to the chemistry of low-coordinate main group element compounds. Significant progress has been achieved in stabilization and isolation of such species as Lewis acid/base adducts with highly tunable NHC ligands. This has allowed investigation of numerous novel types of compounds with unique electronic structures and opened new opportunities in the rational design of novel organic catalysts and materials. This Review gives a general overview of this research, basic synthetic approaches, key features of NHC-main group element adducts, and might be useful for the broad research community.
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Affiliation(s)
- Vitaly Nesterov
- Department of Chemistry, WACKER-Institute of Silicon Chemistry and Catalysis Research Center , Technische Universität München , Lichtenbergstrasse 4 , Garching bei München 85748 , Germany
| | - Dominik Reiter
- Department of Chemistry, WACKER-Institute of Silicon Chemistry and Catalysis Research Center , Technische Universität München , Lichtenbergstrasse 4 , Garching bei München 85748 , Germany
| | - Prasenjit Bag
- Department of Chemistry, WACKER-Institute of Silicon Chemistry and Catalysis Research Center , Technische Universität München , Lichtenbergstrasse 4 , Garching bei München 85748 , Germany
| | - Philipp Frisch
- Department of Chemistry, WACKER-Institute of Silicon Chemistry and Catalysis Research Center , Technische Universität München , Lichtenbergstrasse 4 , Garching bei München 85748 , Germany
| | - Richard Holzner
- Department of Chemistry, WACKER-Institute of Silicon Chemistry and Catalysis Research Center , Technische Universität München , Lichtenbergstrasse 4 , Garching bei München 85748 , Germany
| | - Amelie Porzelt
- Department of Chemistry, WACKER-Institute of Silicon Chemistry and Catalysis Research Center , Technische Universität München , Lichtenbergstrasse 4 , Garching bei München 85748 , Germany
| | - Shigeyoshi Inoue
- Department of Chemistry, WACKER-Institute of Silicon Chemistry and Catalysis Research Center , Technische Universität München , Lichtenbergstrasse 4 , Garching bei München 85748 , Germany
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73
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Liu LL, Zhou J, Andrews R, Stephan DW. A Room-Temperature-Stable Phosphanorcaradiene. J Am Chem Soc 2018; 140:7466-7470. [PMID: 29860832 DOI: 10.1021/jacs.8b04930] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A room-temperature-stable crystalline phosphanorcaradiene 2 has been synthesized via a C-C bond forming strategy induced by the demetalation of a phosphepine-Au complex 1 using a Lewis base (Ph3P, IDipp or CyNC). Compound 2 undergoes photolysis to afford a 2 H-phosphirene 4. Ru(PPh3)3Cl2 is shown to catalyze the equilibration of 2 and 4 in solution. In addition, the transformation of 2 to 4 can be achieved by a two-step strategy, namely cyclopropenylidene-induced ring opening to give cyclopropenylidene-stabilized vinylphosphinidene 7 followed by elimination of cyclopropenylidene by an electrophile including TMSOTf and Me2SBH3.
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Affiliation(s)
- Liu Leo Liu
- Department of Chemistry , University of Toronto , 80 St. George Street , Toronto , Ontario M5S3H60 , Canada
| | - Jiliang Zhou
- Department of Chemistry , University of Toronto , 80 St. George Street , Toronto , Ontario M5S3H60 , Canada
| | - Ryan Andrews
- Department of Chemistry , University of Toronto , 80 St. George Street , Toronto , Ontario M5S3H60 , Canada
| | - Douglas W Stephan
- Department of Chemistry , University of Toronto , 80 St. George Street , Toronto , Ontario M5S3H60 , Canada
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74
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Song H, Kim H, Lee E. Coumaraz-2-on-4-ylidene: Ambiphilic N-Heterocyclic Carbenes with a Tunable Electronic Structure. Angew Chem Int Ed Engl 2018; 57:8603-8607. [PMID: 29767421 DOI: 10.1002/anie.201804249] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2018] [Indexed: 11/11/2022]
Abstract
Herein, a coumaraz-2-on-4-ylidene (1) as a new example of an ambiphilic N-heterocyclic carbene, having electronic properties that can be fine-tuned, is reported. The N-carbamic and aryl groups on the carbene carbon center provide exceptionally high electrophilicity and nucleophilicity simultaneously to the carbene center, as evidenced by the 77 Se NMR chemical shifts of their selenoketone derivatives and the CO stretching strengths of their rhodium carbonyl complexes. Since the precursors of 1 could be synthesized from various functionalized Schiff bases in a practical and scalable manner, the electronic properties of 1 can be fine-tuned in a quantitative and predictable way by using the Hammett σ constant of the functional groups on aryl ring. The facile electronic tuning capability of 1 may be applicable to eliciting novel properties in main-group and transition-metal chemistry.
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Affiliation(s)
- Hayoung Song
- Center for Self-assembly and Complexity, Institute for Basic Science (IBS), Pohang, 37673, Republic of Korea.,Department of Chemistry, Pohang University of Science and Technology (POSTECH), Pohang, 37673, Republic of Korea
| | - Hyunho Kim
- Center for Self-assembly and Complexity, Institute for Basic Science (IBS), Pohang, 37673, Republic of Korea.,Department of Chemistry, Pohang University of Science and Technology (POSTECH), Pohang, 37673, Republic of Korea
| | - Eunsung Lee
- Center for Self-assembly and Complexity, Institute for Basic Science (IBS), Pohang, 37673, Republic of Korea.,Department of Chemistry, Pohang University of Science and Technology (POSTECH), Pohang, 37673, Republic of Korea.,Division of Advanced Materials Science, Pohang University of Science and Technology (POSTECH), Pohang, 37673, Republic of Korea
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75
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Song H, Kim H, Lee E. Coumaraz‐2‐on‐4‐ylidene: Ambiphilic N‐Heterocyclic Carbenes with a Tunable Electronic Structure. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201804249] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Hayoung Song
- Center for Self-assembly and Complexity Institute for Basic Science (IBS) Pohang 37673 Republic of Korea
- Department of Chemistry Pohang University of Science and Technology (POSTECH) Pohang 37673 Republic of Korea
| | - Hyunho Kim
- Center for Self-assembly and Complexity Institute for Basic Science (IBS) Pohang 37673 Republic of Korea
- Department of Chemistry Pohang University of Science and Technology (POSTECH) Pohang 37673 Republic of Korea
| | - Eunsung Lee
- Center for Self-assembly and Complexity Institute for Basic Science (IBS) Pohang 37673 Republic of Korea
- Department of Chemistry Pohang University of Science and Technology (POSTECH) Pohang 37673 Republic of Korea
- Division of Advanced Materials Science Pohang University of Science and Technology (POSTECH) Pohang 37673 Republic of Korea
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76
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Wang W, Cui L, Sun P, Shi L, Yue C, Li F. Reusable N-Heterocyclic Carbene Complex Catalysts and Beyond: A Perspective on Recycling Strategies. Chem Rev 2018; 118:9843-9929. [DOI: 10.1021/acs.chemrev.8b00057] [Citation(s) in RCA: 137] [Impact Index Per Article: 22.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Wenlong Wang
- School of Environment and Civil Engineering, Dongguan University of Technology, Dongguan 523808, China
| | - Lifeng Cui
- School of Environment and Civil Engineering, Dongguan University of Technology, Dongguan 523808, China
| | - Peng Sun
- State Key Laboratory for Oxo Synthesis and Selective Oxidation, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, China
| | - Lijun Shi
- State Key Laboratory for Oxo Synthesis and Selective Oxidation, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, China
| | - Chengtao Yue
- State Key Laboratory for Oxo Synthesis and Selective Oxidation, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, China
| | - Fuwei Li
- State Key Laboratory for Oxo Synthesis and Selective Oxidation, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, China
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77
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Dutta S, Maity B, Thirumalai D, Koley D. Computational Investigation of Carbene–Phosphinidenes: Correlation between 31P Chemical Shifts and Bonding Features to Estimate the π-Backdonation of Carbenes. Inorg Chem 2018. [DOI: 10.1021/acs.inorgchem.8b00174] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Sayan Dutta
- Department of Chemical Sciences, Indian Institute of Science Education and Research (IISER) Kolkata, Mohanpur 741 246, India
| | - Bholanath Maity
- Department of Chemical Sciences, Indian Institute of Science Education and Research (IISER) Kolkata, Mohanpur 741 246, India
| | - D. Thirumalai
- Department of Chemistry, Thiruvalluvar University, Serkkadu, Vellore 632 115, India
| | - Debasis Koley
- Department of Chemical Sciences, Indian Institute of Science Education and Research (IISER) Kolkata, Mohanpur 741 246, India
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78
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Affiliation(s)
- Dominik Munz
- Friedrich-Alexander Universität Erlangen-Nürnberg, Egerlandstraße 1, 91058 Erlangen, Germany
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79
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Hansmann MM, Melaimi M, Munz D, Bertrand G. Modular Approach to Kekulé Diradicaloids Derived from Cyclic (Alkyl)(amino)carbenes. J Am Chem Soc 2018; 140:2546-2554. [DOI: 10.1021/jacs.7b11183] [Citation(s) in RCA: 62] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Affiliation(s)
- Max M. Hansmann
- UCSD-CNRS Joint Research
Laboratory (UMI 3555), Department of Chemistry and Biochemistry, University of California San Diego, La Jolla, San Diego, California 92093-0358, United States
| | - Mohand Melaimi
- UCSD-CNRS Joint Research
Laboratory (UMI 3555), Department of Chemistry and Biochemistry, University of California San Diego, La Jolla, San Diego, California 92093-0358, United States
| | - Dominik Munz
- UCSD-CNRS Joint Research
Laboratory (UMI 3555), Department of Chemistry and Biochemistry, University of California San Diego, La Jolla, San Diego, California 92093-0358, United States
| | - Guy Bertrand
- UCSD-CNRS Joint Research
Laboratory (UMI 3555), Department of Chemistry and Biochemistry, University of California San Diego, La Jolla, San Diego, California 92093-0358, United States
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80
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Arisawa M, Sawahata K, Yamada T, Sarkar D, Yamaguchi M. Rhodium-Catalyzed Insertion Reaction of PhP Group of Pentaphenylcyclopentaphosphine with Acyclic and Cyclic Disulfides. Org Lett 2018; 20:938-941. [DOI: 10.1021/acs.orglett.7b03825] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Mieko Arisawa
- Department of Organic Chemistry,
Graduate School of Pharmaceutical Sciences, Tohoku University, Aoba, Sendai, 980-8578, Japan
| | - Kyosuke Sawahata
- Department of Organic Chemistry,
Graduate School of Pharmaceutical Sciences, Tohoku University, Aoba, Sendai, 980-8578, Japan
| | - Tomoki Yamada
- Department of Organic Chemistry,
Graduate School of Pharmaceutical Sciences, Tohoku University, Aoba, Sendai, 980-8578, Japan
| | - Debayan Sarkar
- Department of Organic Chemistry,
Graduate School of Pharmaceutical Sciences, Tohoku University, Aoba, Sendai, 980-8578, Japan
| | - Masahiko Yamaguchi
- Department of Organic Chemistry,
Graduate School of Pharmaceutical Sciences, Tohoku University, Aoba, Sendai, 980-8578, Japan
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81
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Hansmann MM, Melaimi M, Bertrand G. Organic Mixed Valence Compounds Derived from Cyclic (Alkyl)(amino)carbenes. J Am Chem Soc 2018; 140:2206-2213. [PMID: 29342351 DOI: 10.1021/jacs.7b11184] [Citation(s) in RCA: 56] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Readily available room temperature stable organic mixed valence compounds are prepared by one-electron reduction of cyclic bis(iminium) salts [derived from cyclic (alkyl)(amino)carbenes] bridged by various spacers. These compounds show characteristic intervalence charge transfer (IV-CT) bands in the near-infrared (NIR). Cyclic voltammetry, EPR, IR, UV-vis, and X-ray studies, as well as DFT calculations, show that, depending on the nature of the spacer, these mixed valence compounds range from class III to class II.
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Affiliation(s)
- Max M Hansmann
- UCSD-CNRS Joint Research Laboratory (UMI 3555), Department of Chemistry and Biochemistry, University of California, San Diego , La Jolla, California 92093-0358, United States
| | - Mohand Melaimi
- UCSD-CNRS Joint Research Laboratory (UMI 3555), Department of Chemistry and Biochemistry, University of California, San Diego , La Jolla, California 92093-0358, United States
| | - Guy Bertrand
- UCSD-CNRS Joint Research Laboratory (UMI 3555), Department of Chemistry and Biochemistry, University of California, San Diego , La Jolla, California 92093-0358, United States
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82
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Mahoney JK, Regnier V, Romero EA, Molton F, Royal G, Jazzar R, Martin D, Bertrand G. The serendipitous discovery of a readily available redox-bistable molecule derived from cyclic(alkyl)(amino)carbenes. Org Chem Front 2018. [DOI: 10.1039/c8qo00447a] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
A simple redox bistable system is available in one step from a stable carbene and a bis(acyl chloride).
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Affiliation(s)
- Janell K. Mahoney
- UCSD-CNRS Joint Research Laboratory (UMI 3555)
- Department of Chemistry and Biochemistry
- University of California
- La Jolla
- USA
| | - Vianney Regnier
- UMR CNRS 5250
- Département de Chimie Moléculaire
- Université Grenoble-Alpes
- 38058 GRENOBLE cedex 9
- France
| | - Erik A. Romero
- UCSD-CNRS Joint Research Laboratory (UMI 3555)
- Department of Chemistry and Biochemistry
- University of California
- La Jolla
- USA
| | - Florian Molton
- UMR CNRS 5250
- Département de Chimie Moléculaire
- Université Grenoble-Alpes
- 38058 GRENOBLE cedex 9
- France
| | - Guy Royal
- UMR CNRS 5250
- Département de Chimie Moléculaire
- Université Grenoble-Alpes
- 38058 GRENOBLE cedex 9
- France
| | - Rodolphe Jazzar
- UCSD-CNRS Joint Research Laboratory (UMI 3555)
- Department of Chemistry and Biochemistry
- University of California
- La Jolla
- USA
| | - David Martin
- UMR CNRS 5250
- Département de Chimie Moléculaire
- Université Grenoble-Alpes
- 38058 GRENOBLE cedex 9
- France
| | - Guy Bertrand
- UCSD-CNRS Joint Research Laboratory (UMI 3555)
- Department of Chemistry and Biochemistry
- University of California
- La Jolla
- USA
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83
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Hickox HP, Wang Y, Luedecke KM, Xie Y, Wei P, Carrillo D, Dominique NL, Cui D, Schaefer HF, Robinson GH. 1,3,2-Diazaborole-derived carbene complexes of boron. Dalton Trans 2017; 47:41-44. [PMID: 29168513 DOI: 10.1039/c7dt04079b] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Reaction of 2-bromo-1,3,2-diazaborole (1) with excess BBr3 induces 1,2-hydrogen migration, giving 1,3,2-diazaborole-derived carbene complexes of boron bromide (2). Compound 2 exists in a dynamic solution equilibrium with 1. The 1H NMR study shows that the equilibrium lies to the right side of the dissociation reaction of 2. Parallel reaction of 1 with excess BI3 gives the corresponding 1,3,2-diazaborole-derived carbene boron iodide complex (3). Notably, in contrast to 2, the dissociation reaction of 3 largely lies to the left side, favouring the formation of 3. The dynamic solution equilibrium behaviours of 2 and 3 are probed by both experimental and theoretical methods.
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Affiliation(s)
- Hunter P Hickox
- Department of Chemistry and the Center for Computational Chemistry, The University of Georgia, Athens, Georgia 30602-2556, USA.
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84
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Hölzel T, Otto M, Buhl H, Ganter C. An Extremely Electron Poor Cationic Triazoliumylidene N-Heterocyclic Carbene: Experimental and Computational Studies. Organometallics 2017. [DOI: 10.1021/acs.organomet.7b00670] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Affiliation(s)
- Torsten Hölzel
- Institut für Anorganische
Chemie und Strukturchemie, Heinrich-Heine-Universität Düsseldorf, Universitätsstraße
1, D-40225 Düsseldorf, Germany
| | - Maximilian Otto
- Institut für Anorganische
Chemie und Strukturchemie, Heinrich-Heine-Universität Düsseldorf, Universitätsstraße
1, D-40225 Düsseldorf, Germany
| | - Hannes Buhl
- Institut für Anorganische
Chemie und Strukturchemie, Heinrich-Heine-Universität Düsseldorf, Universitätsstraße
1, D-40225 Düsseldorf, Germany
| | - Christian Ganter
- Institut für Anorganische
Chemie und Strukturchemie, Heinrich-Heine-Universität Düsseldorf, Universitätsstraße
1, D-40225 Düsseldorf, Germany
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85
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Hansmann MM, Melaimi M, Bertrand G. Crystalline Monomeric Allenyl/Propargyl Radical. J Am Chem Soc 2017; 139:15620-15623. [DOI: 10.1021/jacs.7b09622] [Citation(s) in RCA: 52] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Max M. Hansmann
- UCSD-CNRS Joint Research
Laboratory (UMI 3555), Department of Chemistry and Biochemistry, University of California, San Diego, La Jolla, California 92093-0358, United States
| | - Mohand Melaimi
- UCSD-CNRS Joint Research
Laboratory (UMI 3555), Department of Chemistry and Biochemistry, University of California, San Diego, La Jolla, California 92093-0358, United States
| | - Guy Bertrand
- UCSD-CNRS Joint Research
Laboratory (UMI 3555), Department of Chemistry and Biochemistry, University of California, San Diego, La Jolla, California 92093-0358, United States
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86
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Mandal D, Dolai R, Chrysochos N, Kalita P, Kumar R, Dhara D, Maiti A, Narayanan RS, Rajaraman G, Schulzke C, Chandrasekhar V, Jana A. Stepwise Reversible Oxidation of N-Peralkyl-Substituted NHC–CAAC Derived Triazaalkenes: Isolation of Radical Cations and Dications. Org Lett 2017; 19:5605-5608. [DOI: 10.1021/acs.orglett.7b02721] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Debdeep Mandal
- TIFR Centre for Interdisciplinary Sciences Hyderabad, 21, Brundavan Colony, Narsingi, Hyderabad 500075, India
| | - Ramapada Dolai
- TIFR Centre for Interdisciplinary Sciences Hyderabad, 21, Brundavan Colony, Narsingi, Hyderabad 500075, India
| | - Nicolas Chrysochos
- Institut
für Biochemie, Ernst-Moritz-Arndt Universität Greifswald, Felix-Hausdorff-Straße 4, D-17487 Greifswald, Germany
| | - Pankaj Kalita
- School
of Chemical Sciences, National Institute of Science Education and Research, Bhimpur-Padampur, Jatni, Khurda, Bhubaneswar 752050, Odisha, India
| | - Ravi Kumar
- Department
of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai 400076, India
| | - Debabrata Dhara
- TIFR Centre for Interdisciplinary Sciences Hyderabad, 21, Brundavan Colony, Narsingi, Hyderabad 500075, India
| | - Avijit Maiti
- TIFR Centre for Interdisciplinary Sciences Hyderabad, 21, Brundavan Colony, Narsingi, Hyderabad 500075, India
| | | | - Gopalan Rajaraman
- Department
of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai 400076, India
| | - Carola Schulzke
- Institut
für Biochemie, Ernst-Moritz-Arndt Universität Greifswald, Felix-Hausdorff-Straße 4, D-17487 Greifswald, Germany
| | - Vadapalli Chandrasekhar
- TIFR Centre for Interdisciplinary Sciences Hyderabad, 21, Brundavan Colony, Narsingi, Hyderabad 500075, India
- Department
of Chemistry, Indian Institute of Technology Kanpur, Kanpur 208016, India
| | - Anukul Jana
- TIFR Centre for Interdisciplinary Sciences Hyderabad, 21, Brundavan Colony, Narsingi, Hyderabad 500075, India
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