1
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Pattathil V, Pranckevicius C. Aromaticity transfer in an annulated 1,4,2-diazaborole: facile access to Cs symmetric 1,4,2,5-diazadiborinines. Chem Commun (Camb) 2024; 60:7705-7708. [PMID: 38975792 DOI: 10.1039/d4cc02414a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/09/2024]
Abstract
A tricyclic annulated 1,4,2-diazaborole is readily accessed via reaction of a bidentate pyridyl-carbene ligand with MesBBr2 followed by reduction. Dearomatization of the flanking rings is shown to increase reactivity of this heterocycle in the form of a B-centred alkylation with MeI. Its reaction with hydrido-, fluoro-, and chloro-boranes reveal an unprecedented ring expansion reaction to form a diverse family of B2C2N2 heterocycles, reduction of which allows facile access to the first examples of Cs symmetric 1,4,2,5-diazadiborinines. DFT calculations have shed light on the electronic structures of the reduced species and provide insight into mechanistic aspects of the observed ring-expansion.
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Affiliation(s)
- Vignesh Pattathil
- Department of Chemistry, Charles E. Fipke Centre for Innovative Research, University of British Columbia, Okanagan Campus, 3247 University Way, Kelowna, BC, Canada.
| | - Conor Pranckevicius
- Department of Chemistry, Charles E. Fipke Centre for Innovative Research, University of British Columbia, Okanagan Campus, 3247 University Way, Kelowna, BC, Canada.
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2
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Fan J, Koh AP, Wu CS, Su MD, So CW. Carbon dioxide capture and functionalization by bis(N-heterocyclic carbene)-borylene complexes. Nat Commun 2024; 15:3052. [PMID: 38594261 PMCID: PMC11003992 DOI: 10.1038/s41467-024-47381-7] [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: 11/15/2023] [Accepted: 03/28/2024] [Indexed: 04/11/2024] Open
Abstract
Derivatives of free monocoordinated borylenes have attracted considerable interest due to their ability to exhibit transition-metal-like reactivity, in particular small molecules capture. However, such complexes are rare as the formation is either endergonic, or the resulting adduct is a transient intermediate that is prone to reaction. Here, we present the synthesis of two bis(N-heterocyclic carbene)-borylene complexes capable of capturing and functionalizing carbon dioxide. The capture and subsequent functionalization of CO2 by the bis(NHC)-disilylamidoborylene 1 is demonstrated by the formation of the bis(NHC)-isocyanatoborylene-carbon dioxide complex 3. Reversible capture of CO2 is observed using the bis(NHC)-mesitylborylene 2, and the persistent bis(NHC)-mesitylborylene-carbon dioxide adduct 4 can be stabilized by hydrogen bonding with boric acid. The reactions of 4 with ammonia-borane and aniline demonstrate that the captured CO2 can be further functionalized.
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Affiliation(s)
- Jun Fan
- School of Chemistry, Chemical Engineering and Biotechnology, Nanyang Technological University, Singapore, 637371, Singapore
| | - An-Ping Koh
- School of Chemistry, Chemical Engineering and Biotechnology, Nanyang Technological University, Singapore, 637371, Singapore
| | - Chi-Shiun Wu
- Department of Applied Chemistry, National Chiayi University, Chiayi, 60004, Taiwan
| | - Ming-Der Su
- Department of Applied Chemistry, National Chiayi University, Chiayi, 60004, Taiwan
- Department of Medicinal and Applied Chemistry, Kaohsiung Medical University, Kaohsiung, 80708, Taiwan
| | - Cheuk-Wai So
- School of Chemistry, Chemical Engineering and Biotechnology, Nanyang Technological University, Singapore, 637371, Singapore.
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3
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van Beek CM, Swarbrook AM, Creissen CE, Hawes CS, Gazis TA, Matthews PD. Juggling Optoelectronics and Catalysis: The Dual Talents of Bench Stable 1,4-Azaborinines. Chemistry 2024; 30:e202301944. [PMID: 38050753 DOI: 10.1002/chem.202301944] [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: 06/19/2023] [Revised: 12/04/2023] [Accepted: 12/05/2023] [Indexed: 12/06/2023]
Abstract
Boron- and nitrogen-doped polycyclic aromatic hydrocarbons (B-PAHs) have established a strong foothold in the realm of organic electronics. However, their catalytic potential remains largely untapped. In this study, we synthesise and characterise two bench stable B,N-doped PAH derivatives based on a 1,4-azaborinine motif. Most importantly, the anthracene derived structure is an efficient catalyst in the reduction of various carbonyls and imines. These results underscore the potential of B,N-PAHs in catalytic transformations, setting the stage for deeper exploration in this chemical space.
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Affiliation(s)
- Chloe M van Beek
- School of Chemical & Physical Sciences, Keele University, Newcastle-under-Lyme, Staffs, ST5 5BG, U.K
| | - Amelia M Swarbrook
- School of Chemical & Physical Sciences, Keele University, Newcastle-under-Lyme, Staffs, ST5 5BG, U.K
| | - Charles E Creissen
- School of Chemical & Physical Sciences, Keele University, Newcastle-under-Lyme, Staffs, ST5 5BG, U.K
| | - Chris S Hawes
- School of Chemical & Physical Sciences, Keele University, Newcastle-under-Lyme, Staffs, ST5 5BG, U.K
| | - Theodore A Gazis
- School of Chemical & Physical Sciences, Keele University, Newcastle-under-Lyme, Staffs, ST5 5BG, U.K
| | - Peter D Matthews
- School of Chemical & Physical Sciences, Keele University, Newcastle-under-Lyme, Staffs, ST5 5BG, U.K
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4
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Prey SE, Herok C, Fantuzzi F, Bolte M, Lerner HW, Engels B, Wagner M. Multifaceted behavior of a doubly reduced arylborane in B-H-bond activation and hydroboration catalysis. Chem Sci 2023; 14:849-860. [PMID: 36755708 PMCID: PMC9890859 DOI: 10.1039/d2sc05518j] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2022] [Accepted: 12/02/2022] [Indexed: 12/12/2022] Open
Abstract
Alkali-metal salts of 9,10-dimethyl-9,10-dihydro-9,10-diboraanthrancene (M2[DBA-Me2]; M+ = Li+, Na+, K+) activate the H-B bond of pinacolborane (HBpin) in THF already at room temperature. For M+ = Na+, K+, the addition products M2[4] are formed, which contain one new H-B and one new B-Bpin bond; for M+ = Li+, the H- ion is instantaneously transferred from the DBA-Me2 unit to another equivalent of HBpin to afford Li[5]. Although Li[5] might commonly be considered a [Bpin]- adduct of neutral DBA-Me2, it donates a [Bpin]+ cation to Li[SiPh3], generating the silyl borane Ph3Si-Bpin; Li2[DBA-Me2] with an aromatic central B2C4 ring acts as the leaving group. Furthermore, Li2[DBA-Me2] catalyzes the hydroboration of various unsaturated substrates with HBpin in THF. Quantum-chemical calculations complemented by in situ NMR spectroscopy revealed two different mechanistic scenarios that are governed by the steric demand of the substrate used: in the case of the bulky Ph(H)C[double bond, length as m-dash]NtBu, the reaction requires elevated temperatures of 100 °C, starts with H-Bpin activation which subsequently generates Li[BH4], so that the mechanism eventually turns into "hidden borohydride catalysis". Ph(H)C[double bond, length as m-dash]NPh, Ph2C[double bond, length as m-dash]O, Ph2C[double bond, length as m-dash]CH2, and iPrN[double bond, length as m-dash]C[double bond, length as m-dash]NiPr undergo hydroboration already at room temperature. Here, the active hydroboration catalyst is the [4 + 2] cycloadduct between the respective substrate and Li2[DBA-Me2]: in the key step, attack of HBpin on the bridging unit opens the bicyclo[2.2.2]octadiene scaffold and gives the activated HBpin adduct of the Lewis-basic moiety that was previously coordinated to the DBA-B atom.
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Affiliation(s)
- Sven E. Prey
- Institut für Anorganische und Analytische Chemie, Goethe-Universität FrankfurtFrankfurt am Main D-60438Germany
| | - Christoph Herok
- Institut für Physikalische und Theoretische Chemie, Julius-Maximilians-Universität Würzburg Würzburg D-97074 Germany
| | - Felipe Fantuzzi
- Institut für Physikalische und Theoretische Chemie, Julius-Maximilians-Universität Würzburg Würzburg D-97074 Germany .,School of Chemistry and Forensic Science, University of Kent Canterbury CT2 7NH UK
| | - Michael Bolte
- Institut für Anorganische und Analytische Chemie, Goethe-Universität Frankfurt Frankfurt am Main D-60438 Germany
| | - Hans-Wolfram Lerner
- Institut für Anorganische und Analytische Chemie, Goethe-Universität Frankfurt Frankfurt am Main D-60438 Germany
| | - Bernd Engels
- Institut für Physikalische und Theoretische Chemie, Julius-Maximilians-Universität Würzburg Würzburg D-97074 Germany
| | - Matthias Wagner
- Institut für Anorganische und Analytische Chemie, Goethe-Universität Frankfurt Frankfurt am Main D-60438 Germany
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5
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Chen Z, Lv K, Yuan T, Zhang X, Yao W, Ma M. Electrochemical hydroboration of carbonyl compounds. Dalton Trans 2022; 51:11868-11875. [PMID: 35876237 DOI: 10.1039/d2dt01841a] [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
A green and sustainable electrochemical hydroboration of carbonyl compounds with HBpin has been reported for the first time. Under catalyst-free and additive-free mild reaction conditions the corresponding boronic esters were obtained in excellent yields via the simple electrochemical hydroboration of various aldehydes and ketones with HBpin at room temperature. The scale-up reaction demonstrated potential practical applications. A plausible reaction mechanism was proposed based on the corresponding deuterium-labelling, radical inhibition and cyclic voltammetry experiments.
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Affiliation(s)
- Zewei Chen
- College of Pharmacy, Nanjing University of Chinese Medicine, Nanjing 210023, China.
| | - Kang Lv
- College of Pharmacy, Nanjing University of Chinese Medicine, Nanjing 210023, China.
| | - Taoyue Yuan
- Department of Chemistry and Materials Science, College of Science, Nanjing Forestry University, Nanjing 210037, China.
| | - Xuguang Zhang
- Department of Chemistry and Materials Science, College of Science, Nanjing Forestry University, Nanjing 210037, China.
| | - Weiwei Yao
- College of Pharmacy, Nanjing University of Chinese Medicine, Nanjing 210023, China.
| | - Mengtao Ma
- Department of Chemistry and Materials Science, College of Science, Nanjing Forestry University, Nanjing 210037, China.
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6
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Kinjo R. How to Install Boron into Aromatic Scaffolds~Chemistry of Diazadiborinines~. J SYN ORG CHEM JPN 2021. [DOI: 10.5059/yukigoseikyokaishi.79.1056] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Rei Kinjo
- Division of Chemistry and Biological Chemistry, School of Physical and Mathematical Sciences, Nanyang Technological University
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7
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Sau S, Pramanik M, Bal A, Mal P. Reported Catalytic Hydrofunctionalizations that Proceed in the Absence of Catalysts: The Importance of Control Experiments. CHEM REC 2021; 22:e202100208. [PMID: 34618401 DOI: 10.1002/tcr.202100208] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2021] [Revised: 09/21/2021] [Accepted: 09/21/2021] [Indexed: 01/23/2023]
Abstract
The enlarged landscape of catalysis lies in the heart of chemistry. As the journey has set a milestone in organic synthesis, its darker side has not entered into the limelight. Studies disclose that the reported reactions by using catalysts were also attainable in the absence of catalysts in many cases. This article presents a literature collection that includes the significance of control experiments in hydrofunctionalization reactions. Systematic analysis reveals that the catalysts are ambiguous and might be unessential in chemical reactions enlisted here.
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Affiliation(s)
- Sudip Sau
- School of Chemical Sciences, National Institute of Science Education and Research (NISER), HBNI, Bhubaneswar, PO Bhimpur-Padanpur, Via Jatni, District Khurda, Odisha, 752050, India
| | - Milan Pramanik
- School of Chemical Sciences, National Institute of Science Education and Research (NISER), HBNI, Bhubaneswar, PO Bhimpur-Padanpur, Via Jatni, District Khurda, Odisha, 752050, India
| | - Ankita Bal
- School of Chemical Sciences, National Institute of Science Education and Research (NISER), HBNI, Bhubaneswar, PO Bhimpur-Padanpur, Via Jatni, District Khurda, Odisha, 752050, India
| | - Prasenjit Mal
- School of Chemical Sciences, National Institute of Science Education and Research (NISER), HBNI, Bhubaneswar, PO Bhimpur-Padanpur, Via Jatni, District Khurda, Odisha, 752050, India
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8
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Ankur, Kannan R, Chambenahalli R, Banerjee S, Yang Y, Maron L, Venugopal A. [(Me
6
TREN)MgOCHPh
2
][B(C
6
F
5
)
4
]: A Model Complex to Explore the Catalytic Activity of Magnesium Alkoxides in Ketone Hydroboration. Eur J Inorg Chem 2021. [DOI: 10.1002/ejic.202100651] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Ankur
- School of Chemistry Indian Institute of Science Education and Research Thiruvananthapuram Vithura Thiruvananthapuram 695551 India
| | - Ramkumar Kannan
- School of Chemistry Indian Institute of Science Education and Research Thiruvananthapuram Vithura Thiruvananthapuram 695551 India
| | - Raju Chambenahalli
- School of Chemistry Indian Institute of Science Education and Research Thiruvananthapuram Vithura Thiruvananthapuram 695551 India
| | - Sumanta Banerjee
- School of Chemistry Indian Institute of Science Education and Research Thiruvananthapuram Vithura Thiruvananthapuram 695551 India
| | - Yan Yang
- LPCNO, UMR 5215, INSA, UPS Université de Toulouse-CNRS 31000 Toulouse France
| | - Laurent Maron
- LPCNO, UMR 5215, INSA, UPS Université de Toulouse-CNRS 31000 Toulouse France
| | - Ajay Venugopal
- School of Chemistry Indian Institute of Science Education and Research Thiruvananthapuram Vithura Thiruvananthapuram 695551 India
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9
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Abstract
AbstractOrganoboron compounds play prominent roles in structural, synthetic, and materials chemistry because boron atoms can feature electrophilic, ambiphilic, or nucleophilic character. This perspective briefly describes the most recent progress in organoboron chemistry, focusing on new boron molecules and their applications that have attracted great interest from main-group chemists. The research hotspots arising from these pioneering results are also discussed.1 Introduction2 Diboron Reagents3 Boryl Anions4 Borylenes5 Nucleophilic or Ambiphilic Boron-Containing N-Heterocycles6 Conclusions and Outlook
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Affiliation(s)
- Lingbing Kong
- School of Chemistry and Chemical Engineering, Shandong University
- State Key Laboratory of Elemento-organic Chemistry and College of Chemistry, Nankai University
| | - Chunming Cui
- State Key Laboratory of Elemento-organic Chemistry and College of Chemistry, Nankai University
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10
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Wallach C, Geitner FS, Karttunen AJ, Fässler TF. Boranyl-Functionalized [Ge 9 ] Clusters: Providing the Idea of Intramolecular Ge/B Frustrated Lewis Pairs. Angew Chem Int Ed Engl 2021; 60:2648-2653. [PMID: 33090635 PMCID: PMC7898805 DOI: 10.1002/anie.202012336] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2020] [Revised: 10/03/2020] [Indexed: 12/14/2022]
Abstract
The unique three-dimensional structure of spherical, homoatomic nine-atom germanium clusters opens various possibilities for the spatial arrangement of functional groups. Ligands comprising lone pairs have recently been introduced in the cluster sphere, and we now report the addition of a boranyl group to the cluster featuring a Ge-B exo-cluster bond. The reaction of the twofold-silylated cluster [Ge9 {Si(TMS)3 }2 ]2- (TMS=trimethylsilyl) with 2-chloro-1,3,2-diazaborolidines DABR -Cl leads to the first boranyl-functionalized [Ge9 ] clusters [Ge9 {Si(TMS)3 }2 DABR ]- (R=methyl (1 a), iso-propyl (2 a), ortho-tolyl (3 a)). The anions 2 a and 3 a were structurally characterized as [NHCDipp Cu]+ complexes (NHCDipp =1,3-di(2,6-diisopropylphenyl)imidazolylidine) through single crystal X-ray structure determination. Quantum-chemical calculations manifest the frustrated Lewis pair (FLP) character of the boranyl-functionalized cluster [Ge9 {Si(TMS)3 }2 BCy2 ]- (4 a).
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Affiliation(s)
- Christoph Wallach
- Department ChemieTechnische Universität MünchenLichtenbergstraße 485747Garching b. MünchenGermany
| | - Felix S. Geitner
- Department ChemieTechnische Universität MünchenLichtenbergstraße 485747Garching b. MünchenGermany
| | - Antti J. Karttunen
- Department of Chemistry and Materials ScienceAalto University00076AaltoFinland
| | - Thomas F. Fässler
- Department ChemieTechnische Universität MünchenLichtenbergstraße 485747Garching b. MünchenGermany
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11
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Wallach C, Geitner FS, Karttunen AJ, Fässler TF. Boranyl‐Functionalized [Ge
9
] Clusters: Providing the Idea of Intramolecular Ge/B Frustrated Lewis Pairs. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202012336] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Christoph Wallach
- Department Chemie Technische Universität München Lichtenbergstraße 4 85747 Garching b. München Germany
| | - Felix S. Geitner
- Department Chemie Technische Universität München Lichtenbergstraße 4 85747 Garching b. München Germany
| | - Antti J. Karttunen
- Department of Chemistry and Materials Science Aalto University 00076 Aalto Finland
| | - Thomas F. Fässler
- Department Chemie Technische Universität München Lichtenbergstraße 4 85747 Garching b. München Germany
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12
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Zhao L, Hu C, Cong X, Deng G, Liu LL, Luo M, Zeng X. Cyclic (Alkyl)(amino)carbene Ligand-Promoted Nitro Deoxygenative Hydroboration with Chromium Catalysis: Scope, Mechanism, and Applications. J Am Chem Soc 2021; 143:1618-1629. [DOI: 10.1021/jacs.0c12318] [Citation(s) in RCA: 27] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Lixing Zhao
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu 610064, China
| | - Chenyang Hu
- Shenzhen Grubbs Institute and Department of Chemistry, Southern University of Science and Technology, Shenzhen 518055, China
| | - Xuefeng Cong
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu 610064, China
| | - Gongda Deng
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu 610064, China
| | - Liu Leo Liu
- Shenzhen Grubbs Institute and Department of Chemistry, Southern University of Science and Technology, Shenzhen 518055, China
| | - Meiming Luo
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu 610064, China
| | - Xiaoming Zeng
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu 610064, China
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13
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Gao H, Hu L, Hu Y, Lv X, Wu YB, Lu G. Origins of Lewis acid acceleration in nickel-catalysed C–H, C–C and C–O bond cleavage. Catal Sci Technol 2021. [DOI: 10.1039/d1cy00660f] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
The effects of charge transfer, Pauli repulsion and electrostatics/polarization are identified as dominant factors for Lewis acid accelerations in Ni-catalyzed C–X (X = H, C and O) bond cleavages.
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Affiliation(s)
- Han Gao
- School of Chemistry and Chemical Engineering
- Key Laboratory of Colloid and Interface Chemistry
- Ministry of Education
- Shandong University
- Jinan
| | - Lingfei Hu
- School of Chemistry and Chemical Engineering
- Key Laboratory of Colloid and Interface Chemistry
- Ministry of Education
- Shandong University
- Jinan
| | - Yanlei Hu
- School of Chemistry and Chemical Engineering
- Key Laboratory of Colloid and Interface Chemistry
- Ministry of Education
- Shandong University
- Jinan
| | - Xiangying Lv
- School of Chemistry and Chemical Engineering
- Key Laboratory of Colloid and Interface Chemistry
- Ministry of Education
- Shandong University
- Jinan
| | - Yan-Bo Wu
- Key Lab for Materials of Energy Conversion and Storage of Shanxi Province and
- Key Lab of Chemical Biology and Molecular Engineering of Ministry of Education
- Institute of Molecular Science
- Shanxi University
- Taiyuan
| | - Gang Lu
- School of Chemistry and Chemical Engineering
- Key Laboratory of Colloid and Interface Chemistry
- Ministry of Education
- Shandong University
- Jinan
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14
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Prey SE, Wagner M. Threat to the Throne: Can Two Cooperating Boron Atoms Rival Transition Metals in Chemical Bond Activation and Catalysis? Adv Synth Catal 2020. [DOI: 10.1002/adsc.202001356] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Affiliation(s)
- Sven E. Prey
- Institut für Anorganische Chemie Goethe-Universität Frankfurt am Main Max-von-Laue-Str. 7 60438 Frankfurt (Main) Germany
| | - Matthias Wagner
- Institut für Anorganische Chemie Goethe-Universität Frankfurt am Main Max-von-Laue-Str. 7 60438 Frankfurt (Main) Germany
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15
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Kim H, Shin HL, Yi J, Choi HS, Lee JH, Hwang H, An DK. Lithium Bromide/
HBpin
: A Mild and Effective Catalytic System for the Selective Hydroboration of Aldehydes and Ketones. B KOREAN CHEM SOC 2020. [DOI: 10.1002/bkcs.12103] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Hanbi Kim
- Department of Chemistry Kangwon National University, and Institute for Molecular Science and Fusion Technology, Chunchon 24341 Republic of Korea
| | - Hye Lim Shin
- Department of Chemistry Kangwon National University, and Institute for Molecular Science and Fusion Technology, Chunchon 24341 Republic of Korea
| | - Jaeeun Yi
- Department of Chemistry Kangwon National University, and Institute for Molecular Science and Fusion Technology, Chunchon 24341 Republic of Korea
| | - Hyeon Seong Choi
- Department of Chemistry Kangwon National University, and Institute for Molecular Science and Fusion Technology, Chunchon 24341 Republic of Korea
| | - Ji Hye Lee
- Department of Chemistry Kangwon National University, and Institute for Molecular Science and Fusion Technology, Chunchon 24341 Republic of Korea
| | - Hyonseok Hwang
- Department of Chemistry Kangwon National University, and Institute for Molecular Science and Fusion Technology, Chunchon 24341 Republic of Korea
| | - Duk Keun An
- Department of Chemistry Kangwon National University, and Institute for Molecular Science and Fusion Technology, Chunchon 24341 Republic of Korea
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16
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Barger CJ, Dicken RD, Weidner VL, Motta A, Lohr TL, Marks TJ. La[N(SiMe3)2]3-Catalyzed Deoxygenative Reduction of Amides with Pinacolborane. Scope and Mechanism. J Am Chem Soc 2020; 142:8019-8028. [DOI: 10.1021/jacs.0c02446] [Citation(s) in RCA: 41] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Affiliation(s)
- Christopher J. Barger
- Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208-3113, United States
| | - Rachel D. Dicken
- Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208-3113, United States
| | - Victoria L. Weidner
- Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208-3113, United States
| | - Alessandro Motta
- Dipartimento di Scienze Chimiche, Università di Roma “La Sapienza” and INSTM, UdR Roma, Piazzale Aldo Moro 5, Roma I-00185, Italy
| | - Tracy L. Lohr
- Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208-3113, United States
| | - Tobin J. Marks
- Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208-3113, United States
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17
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Exploring the reactivity of carbene supported diboraanthracene towards dihydrogen activation. Polyhedron 2019. [DOI: 10.1016/j.poly.2019.06.043] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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18
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Barger CJ, Motta A, Weidner VL, Lohr TL, Marks TJ. La[N(SiMe3)2]3-Catalyzed Ester Reductions with Pinacolborane: Scope and Mechanism of Ester Cleavage. ACS Catal 2019. [DOI: 10.1021/acscatal.9b02605] [Citation(s) in RCA: 43] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Affiliation(s)
- Christopher J. Barger
- Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208-3113, United States
| | - Alessandro Motta
- Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208-3113, United States
- Dipartimento di Scienze Chimiche, Università di Roma “La Sapienza” and INSTM, UdR Roma, Piazzale Aldo Moro 5, Roma I-00185, Italy
| | - Victoria L. Weidner
- Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208-3113, United States
| | - Tracy L. Lohr
- Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208-3113, United States
| | - Tobin J. Marks
- Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208-3113, United States
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19
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Dasgupta R, Das S, Hiwase S, Pati SK, Khan S. N-Heterocyclic Germylene and Stannylene Catalyzed Cyanosilylation and Hydroboration of Aldehydes. Organometallics 2019. [DOI: 10.1021/acs.organomet.8b00673] [Citation(s) in RCA: 45] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Rajarshi Dasgupta
- Department of Chemistry, Indian Institute of Science Education and Research Pune, Dr. Homi Bhabha Road, Pashan, Pune 411 008, India
| | - Shubhajit Das
- New Chemistry Unit, Jawaharlal Nehru Centre for Advanced Scientific Research, Jakkur-Bangalore 560064, India
| | - Shweta Hiwase
- Department of Chemistry, Indian Institute of Science Education and Research Pune, Dr. Homi Bhabha Road, Pashan, Pune 411 008, India
| | - Swapan K. Pati
- New Chemistry Unit, Jawaharlal Nehru Centre for Advanced Scientific Research, Jakkur-Bangalore 560064, India
| | - Shabana Khan
- Department of Chemistry, Indian Institute of Science Education and Research Pune, Dr. Homi Bhabha Road, Pashan, Pune 411 008, India
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20
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Abstract
This year marks the 350th anniversary of the discovery of phosphorus by the alchemist Hennig Brand. However, this element was not included in the p-block of the periodic table until more recently. 2019 also marks the 150th anniversary of the preliminary tabular arrangement of the elements into the periodic system by Mendeleev. Of the 63 elements known in 1869, almost one-third of them belonged to what ultimately became the p-block, and Mendeleev predicted the existence of both gallium and germanium as well. The elements of the p-block have a disparate and varied history. Their chemical structure, reactivity, and properties vary widely. Nevertheless, in recent years, a better understanding of trends in p-block reactivity, particularly the behavior of those elements not typically found in biological systems, has led to a promising array of emerging applications, highlighted herein.
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21
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Abstract
Most of the chemical and biological processes involving the fixation and transformation of small molecules have long been exclusive for metal complexes. Meanwhile, the last decades have seen a significant advance in main group chemistry that mimics transition-metal complexes, among which various boron-containing systems have been successful in mediating the small molecule activation. In this review, we focus on boron-containing heterocycles enabling the activation of σ- and π-bonds in small molecules, in conjunction with the proposed mechanisms.
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Affiliation(s)
- Yuanting Su
- 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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22
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Wang W, Luo M, Yao W, Ma M, Pullarkat SA, Xu L, Leung PH. Catalyst-free and solvent-free hydroboration of ketones. NEW J CHEM 2019. [DOI: 10.1039/c9nj02722j] [Citation(s) in RCA: 35] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
The hydroboration of a wide range of ketones with HBpin under catalyst-free and solvent-free conditions was reported in high yields.
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Affiliation(s)
- Weifan Wang
- Department of Chemistry and Materials Science
- College of Science
- Nanjing Forestry University
- Nanjing 210037
- China
| | - Man Luo
- Department of Chemistry and Materials Science
- College of Science
- Nanjing Forestry University
- Nanjing 210037
- China
| | - Weiwei Yao
- College of Pharmacy
- Nanjing University of Chinese Medicine
- Nanjing 210023
- China
| | - Mengtao Ma
- Department of Chemistry and Materials Science
- College of Science
- Nanjing Forestry University
- Nanjing 210037
- China
| | - Sumod A. Pullarkat
- Division of Chemistry & Biological Chemistry
- School of Physical and Mathematical Sciences
- Nanyang Technological University
- Singapore 637371
- Singapore
| | - Li Xu
- Department of Chemistry and Materials Science
- College of Science
- Nanjing Forestry University
- Nanjing 210037
- China
| | - Pak-Hing Leung
- Division of Chemistry & Biological Chemistry
- School of Physical and Mathematical Sciences
- Nanyang Technological University
- Singapore 637371
- Singapore
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23
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Shegavi ML, Bose SK. Recent advances in the catalytic hydroboration of carbonyl compounds. Catal Sci Technol 2019. [DOI: 10.1039/c9cy00807a] [Citation(s) in RCA: 112] [Impact Index Per Article: 22.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
The latest development in the catalytic hydroboration of CO groups is summarized in this review. Access to borate ester intermediates provides a pathway to convert them into the corresponding valuable functionalized alcohols.
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Affiliation(s)
- Mahadev L. Shegavi
- Centre for Nano and Material Sciences (CNMS)
- JAIN (Deemed-to-be University)
- Jain Global Campus
- Bangalore-562112
- India
| | - Shubhankar Kumar Bose
- Centre for Nano and Material Sciences (CNMS)
- JAIN (Deemed-to-be University)
- Jain Global Campus
- Bangalore-562112
- India
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24
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Su Y, Li Y, Ganguly R, Kinjo R. Engineering the Frontier Orbitals of a Diazadiborinine for Facile Activation of H2
, NH3
, and an Isonitrile. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201803938] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Yuanting Su
- Division of Chemistry and Biological Chemistry; School of Physical and Mathematical Sciences; Nanyang Technological University; Nanyang Link 21 Singapore 637371 Singapore
| | - Yongxin Li
- Division of Chemistry and Biological Chemistry; School of Physical and Mathematical Sciences; Nanyang Technological University; Nanyang Link 21 Singapore 637371 Singapore
| | - Rakesh Ganguly
- 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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25
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Su Y, Li Y, Ganguly R, Kinjo R. Engineering the Frontier Orbitals of a Diazadiborinine for Facile Activation of H2
, NH3
, and an Isonitrile. Angew Chem Int Ed Engl 2018; 57:7846-7849. [DOI: 10.1002/anie.201803938] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2018] [Indexed: 12/17/2022]
Affiliation(s)
- Yuanting Su
- Division of Chemistry and Biological Chemistry; School of Physical and Mathematical Sciences; Nanyang Technological University; Nanyang Link 21 Singapore 637371 Singapore
| | - Yongxin Li
- Division of Chemistry and Biological Chemistry; School of Physical and Mathematical Sciences; Nanyang Technological University; Nanyang Link 21 Singapore 637371 Singapore
| | - Rakesh Ganguly
- 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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26
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Zhou J, Liu LL, Cao LL, Stephan DW. An umpolung of Lewis acidity/basicity at nitrogen by deprotonation of a cyclic (amino)(aryl)nitrenium cation. Chem Commun (Camb) 2018. [PMID: 29527605 DOI: 10.1039/c8cc01331d] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
A cyclic (amino)(aryl)nitrenium cation 2 has been achieved by treatment of spiro[fluorene-9,3'-indazole] (1) with Ph2CHCl and AgBF4. This cation 2 is Lewis acidic at nitrenium N1, reacting with PMe3 affording a Lewis acid/base adduct 3. In contrast, deprotonation of 2 with other bases provides a neutral compound 4 which is Lewis basic at N1, reacting with electrophiles including GaCl3, MeOTf and PhNCO.
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Affiliation(s)
- Jiliang Zhou
- Department of Chemistry, University of Toronto, 80 St. George St., Toronto, Ontario M5S 3H6, Canada.
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27
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Su B, Li Y, Ganguly R, Kinjo R. Ring Expansion, Photoisomerization, and Retrocyclization of 1,4,2-Diazaboroles. Angew Chem Int Ed Engl 2017; 56:14572-14576. [DOI: 10.1002/anie.201708720] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2017] [Indexed: 12/13/2022]
Affiliation(s)
- Bochao Su
- Division of Chemistry and Biological Chemistry; School of Physical and Mathematical Sciences; Nanyang Technological University; Nanyang Link 21 Singapore 637371 Singapore
| | - Yongxin Li
- NTU-CBC Crystallography Facility; Nanyang Technological University; Singapore
| | - Rakesh Ganguly
- NTU-CBC Crystallography Facility; Nanyang Technological University; 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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28
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Su B, Li Y, Ganguly R, Kinjo R. Ring Expansion, Photoisomerization, and Retrocyclization of 1,4,2-Diazaboroles. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201708720] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Bochao Su
- Division of Chemistry and Biological Chemistry; School of Physical and Mathematical Sciences; Nanyang Technological University; Nanyang Link 21 Singapore 637371 Singapore
| | - Yongxin Li
- NTU-CBC Crystallography Facility; Nanyang Technological University; Singapore
| | - Rakesh Ganguly
- NTU-CBC Crystallography Facility; Nanyang Technological University; 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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29
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Wu D, Li Y, Ganguly R, Kinjo R. A snapshot of inorganic Janovsky complex analogues featuring a nucleophilic boron center. Chem Commun (Camb) 2017; 53:12734-12737. [DOI: 10.1039/c7cc07616a] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
The addition of phenyl lithium (PhLi) to an aromatic 1,3,2,5-diazadiborinine (1) afforded isolable ionic species 2, which can be deemed as an inorganic analogue of a Janovsky complex.
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Affiliation(s)
- Di Wu
- Division of Chemistry and Biological Chemistry
- School of Physical and Mathematical Sciences
- Nanyang Technological University
- Singapore 637371
- Singapore
| | - Yongxin Li
- NTU-CBC Crystallography Facility
- Nanyang Technological University
- Singapore 637371
- Singapore
| | - Rakesh Ganguly
- NTU-CBC Crystallography Facility
- Nanyang Technological University
- Singapore 637371
- Singapore
| | - Rei Kinjo
- Division of Chemistry and Biological Chemistry
- School of Physical and Mathematical Sciences
- Nanyang Technological University
- Singapore 637371
- Singapore
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30
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Ma M, Li J, Shen X, Yu Z, Yao W, Pullarkat SA. Sterically bulky amido magnesium methyl complexes: syntheses, structures and catalysis. RSC Adv 2017. [DOI: 10.1039/c7ra08836a] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
The synthesis, crystal structure and catalysis of a series of sterically bulky amidomagnesium methyl complexes are described.
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Affiliation(s)
- Mengtao Ma
- College of Science
- Nanjing Forestry University
- Nanjing 210037
- People's Republic of China
| | - Jia Li
- College of Science
- Nanjing Forestry University
- Nanjing 210037
- People's Republic of China
| | - Xingchao Shen
- College of Science
- Nanjing Forestry University
- Nanjing 210037
- People's Republic of China
| | - Zhijuan Yu
- College of Science
- Nanjing Forestry University
- Nanjing 210037
- People's Republic of China
| | - Weiwei Yao
- College of Pharmacy
- Nanjing University of Chinese Medicine
- Nanjing 210023
- People's Republic of China
| | - Sumod A. Pullarkat
- Division of Chemistry & Biological Chemistry
- School of Physical and Mathematical Sciences
- Nanyang Technological University
- Singapore 637371
- Singapore
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