1
|
Wang Z, Zhou Y, Lee KH, Lam WH, Dewhurst RD, Braunschweig H, Marder TB, Lin Z. DFT Studies of Dimerization Reactions of Boroles. Chemistry 2017. [PMID: 28627022 DOI: 10.1002/chem.201701737] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
Boroles undergo dimerization reactions to give Diels-Alder (DA) dimers, bridged-bicyclic (BB) dimers or spiro dimers (SD) depending on the substituents on the borole. We performed DFT calculations to investigate how different substituents at the carbon atoms of the butadiene backbone as well as at the boron atom influence the dimerization reaction pathways. The DFT results show that, in general, both the DA and BB dimers are easily accessible kinetically, and the DA dimers are thermodynamically more stable than the BB dimers. When the substituent-substituent repulsive steric interactions are alleviated to a certain extent, the BB dimers are more stable than the DA dimer, and become accessible. The SD dimers are generally kinetically difficult to obtain. However, we found that aryl substituents promote the formation of the SD dimers.
Collapse
Affiliation(s)
- Zheng Wang
- Department of Chemistry, The Hong Kong University of Science and Technology, Hong Kong
| | - Yu Zhou
- Department of Chemistry, The Hong Kong University of Science and Technology, Hong Kong
| | - Ka-Ho Lee
- Department of Chemistry, The Hong Kong University of Science and Technology, Hong Kong
| | - Wai Han Lam
- Department of Chemistry, The Hong Kong University of Science and Technology, Hong Kong
| | - Rian D Dewhurst
- Institut für Anorganische Chemie and Institute for Sustainable Chemistry & Catalysis with Boron, Julius-Maximilians-Universität Würzburg, Am Hubland, 97074, Würzburg, Germany
| | - Holger Braunschweig
- Institut für Anorganische Chemie and Institute for Sustainable Chemistry & Catalysis with Boron, Julius-Maximilians-Universität Würzburg, Am Hubland, 97074, Würzburg, Germany
| | - Todd B Marder
- Institut für Anorganische Chemie and Institute for Sustainable Chemistry & Catalysis with Boron, Julius-Maximilians-Universität Würzburg, Am Hubland, 97074, Würzburg, Germany
| | - Zhenyang Lin
- Department of Chemistry, The Hong Kong University of Science and Technology, Hong Kong
| |
Collapse
|
2
|
Braunschweig H, Celik MA, Dewhurst RD, Ferkinghoff K, Radacki K, Weißenberger F. Boron-Metallated Borirenes and Bis(Borirenes). Chemistry 2016; 22:8596-602. [DOI: 10.1002/chem.201600651] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2016] [Indexed: 12/31/2022]
Affiliation(s)
- Holger Braunschweig
- Institut für Anorganische Chemie; Julius-Maximilians-Universität Würzburg; Am Hubland 97074 Würzburg Germany
| | - Mehmet Ali Celik
- Institut für Anorganische Chemie; Julius-Maximilians-Universität Würzburg; Am Hubland 97074 Würzburg Germany
| | - Rian D. Dewhurst
- Institut für Anorganische Chemie; Julius-Maximilians-Universität Würzburg; Am Hubland 97074 Würzburg Germany
| | - Katharina Ferkinghoff
- Institut für Anorganische Chemie; Julius-Maximilians-Universität Würzburg; Am Hubland 97074 Würzburg Germany
| | - Krzysztof Radacki
- Institut für Anorganische Chemie; Julius-Maximilians-Universität Würzburg; Am Hubland 97074 Würzburg Germany
| | - Felix Weißenberger
- Institut für Anorganische Chemie; Julius-Maximilians-Universität Würzburg; Am Hubland 97074 Würzburg Germany
| |
Collapse
|
3
|
Braunschweig H, Damme A, Dewhurst RD, Kelch H, Macha BB, Radacki K, Vargas A, Ye Q. Platinumtrans-Bis(borirene) Complexes Displaying Coplanarity and Communication Across a Platinum Metal Center. Chemistry 2014; 21:2377-86. [DOI: 10.1002/chem.201405803] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2014] [Indexed: 11/05/2022]
|
4
|
Braunschweig H, Dewhurst RD, Radacki K, Tate CW, Vargas A. Trihapto-Koordination eines Borirens an ein einzelnes Metallatom: ein heterocyclisches Analogon des η3-Cyclopropenylliganden. Angew Chem Int Ed Engl 2014. [DOI: 10.1002/ange.201402815] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
|
5
|
Braunschweig H, Dewhurst RD, Radacki K, Tate CW, Vargas A. Trihapto Ligation of a Borirene to a Single Metal Atom: A Heterocyclic Analogue of the η3-Cyclopropenyl Ligand. Angew Chem Int Ed Engl 2014; 53:6263-6. [DOI: 10.1002/anie.201402815] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2014] [Indexed: 11/05/2022]
|
6
|
Bauer J, Bertsch S, Braunschweig H, Dewhurst RD, Ferkinghoff K, Hörl C, Kraft K, Radacki K. Hydridoborylene Complexes and Di‐, Tri‐, and Tetranuclear Borido Complexes with Hydride Ligands. Chemistry 2013; 19:17608-12. [DOI: 10.1002/chem.201303716] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2013] [Indexed: 01/01/2023]
Affiliation(s)
- Jürgen Bauer
- Institut für Anorganische Chemie, Julius‐Maximilians‐Universität Würzburg, Am Hubland, 97074 Würzburg (Germany), Fax: (+49) 931‐31‐84623
| | - Stefanie Bertsch
- Institut für Anorganische Chemie, Julius‐Maximilians‐Universität Würzburg, Am Hubland, 97074 Würzburg (Germany), Fax: (+49) 931‐31‐84623
| | - Holger Braunschweig
- Institut für Anorganische Chemie, Julius‐Maximilians‐Universität Würzburg, Am Hubland, 97074 Würzburg (Germany), Fax: (+49) 931‐31‐84623
| | - Rian D. Dewhurst
- Institut für Anorganische Chemie, Julius‐Maximilians‐Universität Würzburg, Am Hubland, 97074 Würzburg (Germany), Fax: (+49) 931‐31‐84623
| | - Katharina Ferkinghoff
- Institut für Anorganische Chemie, Julius‐Maximilians‐Universität Würzburg, Am Hubland, 97074 Würzburg (Germany), Fax: (+49) 931‐31‐84623
| | - Christian Hörl
- Institut für Anorganische Chemie, Julius‐Maximilians‐Universität Würzburg, Am Hubland, 97074 Würzburg (Germany), Fax: (+49) 931‐31‐84623
| | - Katharina Kraft
- Institut für Anorganische Chemie, Julius‐Maximilians‐Universität Würzburg, Am Hubland, 97074 Würzburg (Germany), Fax: (+49) 931‐31‐84623
| | - Krzysztof Radacki
- Institut für Anorganische Chemie, Julius‐Maximilians‐Universität Würzburg, Am Hubland, 97074 Würzburg (Germany), Fax: (+49) 931‐31‐84623
| |
Collapse
|
7
|
Braunschweig H, Dewhurst RD, Hörl C, Radacki K, Tate CW, Vargas A, Ye Q. Reductive borylene-CO coupling with a bulky arylborylene complex. Angew Chem Int Ed Engl 2013; 52:10120-3. [PMID: 23894013 DOI: 10.1002/anie.201303798] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2013] [Revised: 06/20/2013] [Indexed: 11/06/2022]
Abstract
Partial metal-boron bond cleavage and coupling of a borylene with two CO ligands was observed upon reduction of a new bulky arylborylene complex. Both the borylene precursor and dianionic product were structurally and spectroscopically characterized. In contrast, reduction of an aminoborylene complex led to complete loss of the borylene ligand and classical Hieber reduction. A rationale for these differences based on DFT methods is presented.
Collapse
Affiliation(s)
- Holger Braunschweig
- Institut für Anorganische Chemie, Julius-Maximilians-Universität Würzburg, Am Hubland, 97074 Würzburg (Germany) http://www-anorganik.chemie.uni-wuerzburg.de/Braunschweig/.
| | | | | | | | | | | | | |
Collapse
|
8
|
Braunschweig H, Dewhurst RD, Hörl C, Radacki K, Tate CW, Vargas A, Ye Q. Reduktive Borylen-CO-Kupplung an einem sterisch anspruchsvollen Arylborylenkomplex. Angew Chem Int Ed Engl 2013. [DOI: 10.1002/ange.201303798] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
|
9
|
Bissinger P, Braunschweig H, Damme A, Kupfer T, Radacki K. Ein elektronenpräziser μ3-Boridkomplex mit tetraedrischer Struktur. Angew Chem Int Ed Engl 2013. [DOI: 10.1002/ange.201302828] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
|
10
|
Braunschweig H, Ye Q, Radacki K, Damme A. Borylentransfer mit einem Eisenbis(borylen)komplex: Synthese von 1,4-Diboracyclohexadien- und 1,4-Dibora-1,3-butadienkomplexen. Angew Chem Int Ed Engl 2012. [DOI: 10.1002/ange.201202764] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
|
11
|
Braunschweig H, Ye Q, Radacki K, Damme A. Borylene Transfer from an Iron Bis(borylene) Complex: Synthesis of 1,4-Diboracyclohexadiene and 1,4-Dibora-1,3-Butadiene Complexes. Angew Chem Int Ed Engl 2012; 51:7839-42. [DOI: 10.1002/anie.201202764] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2012] [Revised: 05/16/2012] [Indexed: 11/12/2022]
|
12
|
Araki T, Wakamiya A, Mori K, Yamaguchi S. Elucidation of π‐Conjugation Modes in Diarene‐Fused 1,2‐Dihydro‐1,2‐diborin Dianions. Chem Asian J 2012; 7:1594-603. [DOI: 10.1002/asia.201200055] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2012] [Indexed: 11/11/2022]
Affiliation(s)
- Takafumi Araki
- Department of Chemistry, Graduate School of Science, Nagoya University and CREST, Japan Science and Technology Agency, Furo, Chikusa, Nagoya, 464‐8602 (Japan), Fax: (+81) 52‐789‐5947
| | - Atsushi Wakamiya
- Institute for Chemical Research, Kyoto University and PRESTO, Japan Science and Technology Agency, Gokasyo, Uji, Kyoto, 611‐0011 (Japan), Fax: (+81) 774‐38‐3178
| | - Kenji Mori
- Department of Chemistry, Graduate School of Science, Nagoya University and CREST, Japan Science and Technology Agency, Furo, Chikusa, Nagoya, 464‐8602 (Japan), Fax: (+81) 52‐789‐5947
| | - Shigehiro Yamaguchi
- Department of Chemistry, Graduate School of Science, Nagoya University and CREST, Japan Science and Technology Agency, Furo, Chikusa, Nagoya, 464‐8602 (Japan), Fax: (+81) 52‐789‐5947
| |
Collapse
|
13
|
Braunschweig H, Ye Q, Damme A, Kupfer T, Radacki K, Wolf J. Synthesis of 1-Aza-2-borabutatriene Rhodium Complexes by Thermal Borylene Transfer from [(OC)5MoBN(SiMe3)2]. Angew Chem Int Ed Engl 2011; 50:9462-6. [DOI: 10.1002/anie.201104026] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2011] [Indexed: 11/08/2022]
|
14
|
Braunschweig H, Ye Q, Damme A, Kupfer T, Radacki K, Wolf J. Synthese von 1-Aza-2-borabutatrien-Rhodiumkomplexen durch thermischen Borylentransfer von [(OC)5MoBN(SiMe3)2]. Angew Chem Int Ed Engl 2011. [DOI: 10.1002/ange.201104026] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
|
15
|
Braunschweig H, Ye Q, Radacki K, Kupfer T. Reactivity of a platinum-substituted borirene. Dalton Trans 2011; 40:3666-70. [DOI: 10.1039/c0dt01694b] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|
16
|
Braunschweig H, Chiu CW, Wahler J, Radacki K, Kupfer T. Chemical Reduction and Dimerization of 1-Chloro-2,3,4,5-tetraphenylborole. Chemistry 2010; 16:12229-33. [DOI: 10.1002/chem.201001556] [Citation(s) in RCA: 72] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
|
17
|
Braunschweig H, Ye Q, Radacki K, Brenner P, Frenking G, De S. Borylene-Based Functionalization of Iron-Alkynyl-σ-Complexes and Stepwise Reversible Metal-Boryl-to-Borirene Transformation: Synthesis, Characterization, and Density Functional Theory Studies. Inorg Chem 2010; 50:62-71. [DOI: 10.1021/ic1010874] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
|
18
|
Braunschweig H, Herbst T, Radacki K, Frenking G, Celik M. Chemoselective Boron-Carbon Bond Cleavage by Hydroboration of Borirenes. Chemistry 2009; 15:12099-106. [DOI: 10.1002/chem.200901749] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
|
19
|
Braunschweig H, Ye Q, Radacki K. Borylene-based functionalization of Pt–alkynyl complexes by photochemical borylene transfer from [(OC)5CrBN(SiMe3)2]. Chem Commun (Camb) 2009:6979-81. [DOI: 10.1039/b915926f] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|
20
|
Braunschweig H, Forster M, Seeler F. Synthesis and Structure of Heterodinuclear Rhodium and Iridium Borylene Complexes. Chemistry 2008; 15:469-73. [DOI: 10.1002/chem.200801820] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
|
21
|
Affiliation(s)
- Helmut Poleschner
- Institut für Chemie und Biochemie, Anorganische und Analytische Chemie, Freie Universität Berlin, Fabeckstrasse 34-36, 14195 Berlin, Germany.
| | | |
Collapse
|
22
|
|
23
|
Braunschweig H, Dewhurst R, Herbst T, Radacki K. Zur Reaktivität eines terminalen Chromborylenkomplexes gegenüber Olefinen - Boryleneinschub in eine C-H-Bindung. Angew Chem Int Ed Engl 2008. [DOI: 10.1002/ange.200801579] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
|
24
|
Braunschweig H, Dewhurst R, Herbst T, Radacki K. Reactivity of a Terminal Chromium Borylene Complex towards Olefins: Insertion of a Borylene into a CH Bond. Angew Chem Int Ed Engl 2008; 47:5978-80. [DOI: 10.1002/anie.200801579] [Citation(s) in RCA: 56] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
|
25
|
Braunschweig H, Forster M, Kupfer T, Seeler F. Thermischer Borylentransfer zur Synthese von Rhodium- und Iridiumborylenkomplexen. Angew Chem Int Ed Engl 2008. [DOI: 10.1002/ange.200801756] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
|
26
|
Braunschweig H, Forster M, Kupfer T, Seeler F. Borylene Transfer under Thermal Conditions for the Synthesis of Rhodium and Iridium Borylene Complexes. Angew Chem Int Ed Engl 2008; 47:5981-3. [DOI: 10.1002/anie.200801756] [Citation(s) in RCA: 52] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
|
27
|
Braunschweig H, Fernández I, Frenking G, Kupfer T. Struktureller Nachweis der Antiaromatizität in freien Borolen. Angew Chem Int Ed Engl 2008. [DOI: 10.1002/ange.200704771] [Citation(s) in RCA: 78] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
|
28
|
Braunschweig H, Fernández I, Frenking G, Kupfer T. Structural Evidence for Antiaromaticity in Free Boroles. Angew Chem Int Ed Engl 2008; 47:1951-4. [DOI: 10.1002/anie.200704771] [Citation(s) in RCA: 170] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
|