1
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Zhao M, Xu S, He C, Zhou Y. Synthesis, Structures and Photophysical Properties of Asymmetric Fulvene-[b]-fused BODIPYs. Chemistry 2024; 30:e202303930. [PMID: 38117253 DOI: 10.1002/chem.202303930] [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: 11/26/2023] [Revised: 12/18/2023] [Accepted: 12/18/2023] [Indexed: 12/21/2023]
Abstract
Herein, we developed a one-pot procedure to synthesize novel fulvene-[b]-fused BODIPYs from α-(2-alkynylphenyl)-pyrrole and acylpyrrole, using 5-exo cyclization as the key transformation. Compared to benzene-[b]-fused BODIPYs, although they have similar chemical compositions, their structures and properties significantly differ from each other, which can be attributed to the less aromaticity of the fulvene linker than benzene. Notably, fulvene-[b]-fused BODIPY 1 b exhibits helical-twisted core skeleton, intensified red-shifted absorption, and peak fluorescence. In addition, the pathway of this one-pot reaction and the mechanism of POCl3 mediated 5-exo cyclization have been proposed by a combining experimental and computational study.
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Affiliation(s)
- Mengna Zhao
- College of Life Science, China Jiliang University, Hangzhou, Zhejiang, China
| | - Shaoyu Xu
- College of Life Science, China Jiliang University, Hangzhou, Zhejiang, China
| | - Chun He
- Apeloa Pharmaceutical Co., Ltd Dongyang, Zhejiang, China
| | - Yifeng Zhou
- College of Life Science, China Jiliang University, Hangzhou, Zhejiang, China
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2
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Zhuang D, Jiang S, Wang Y, Wang X, Shen S, Yan R. I 2-Mediated [6 + 1] Annulation of Alkynes with MsONH 3OTf: Direct Synthesis of Benzo[ b]azepines. Org Lett 2023; 25:3007-3012. [PMID: 37083284 DOI: 10.1021/acs.orglett.3c00790] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/22/2023]
Abstract
The synthesis of benzo[b]azepines using protonated aminating reagent (MsONH3OTf) and alkynes through I2-mediated [6 + 1] annulation reaction has been developed. This protocol features excellent functional group tolerance and mild reaction conditions and affords the benzo[b]azepines in moderate to good yields under metal-free reaction conditions.
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Affiliation(s)
- Daijiao Zhuang
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, 730000 Gansu, China
| | - Shixuan Jiang
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, 730000 Gansu, China
| | - Youzhi Wang
- Chengdu Guibao Science and Technology Co., Ltd, Chengdu, 610041 Sichuan, China
| | - Xiajun Wang
- Chengdu Guibao Science and Technology Co., Ltd, Chengdu, 610041 Sichuan, China
| | - Siwei Shen
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, 730000 Gansu, China
| | - Rulong Yan
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, 730000 Gansu, China
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3
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Yuan K, Ingleson MJ. Haloboration of o-Alkynyl Phenols Generates Halogenated Bicyclic-Boronates. Angew Chem Int Ed Engl 2023; 62:e202301463. [PMID: 36856077 DOI: 10.1002/anie.202301463] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2023] [Revised: 02/28/2023] [Accepted: 03/01/2023] [Indexed: 03/02/2023]
Abstract
Benzoxaborinines are intermediates en-route to bicyclic boronates that are important active pharmaceutical ingredients (APIs). Herein, the haloboration of o-alkynyl-phenols using BX3 (X=Cl or Br) is disclosed as a route to form C4-X-benzoxaborinines with good functional group tolerance. Computational studies indicated that there are two similar in barrier mechanisms: (i) double alkyne haloboration followed by retro-haloboration; (ii) concerted trans-haloboration involving an exogenous chloride source. The C4-halide in these benzoxaborinines is useful, with a one-pot haloboration-Negishi cross coupling protocol effective to form benzoxaborinines with an alkyl or an aryl at C4. Therefore this method is a useful addition to the toolbox for synthesising bicyclic-boronates that are attracting increasing attention as APIs.
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Affiliation(s)
- Kang Yuan
- School of Chemistry, University of Edinburgh, Edinburgh, EH9 3FJ, UK
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4
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Milián A, Fernández-Rodríguez MA, Merino E, Vaquero JJ, García-García P. Metal-Free Temperature-Controlled Regiodivergent Borylative Cyclizations of Enynes: BCl 3 -Promoted Skeletal Rearrangement. Angew Chem Int Ed Engl 2022; 61:e202205651. [PMID: 35510716 PMCID: PMC9401584 DOI: 10.1002/anie.202205651] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2022] [Indexed: 12/04/2022]
Abstract
Metal‐free borylative cyclization of biphenyl‐embedded 1,3,5‐trien‐7‐ynes in the presence of simple and inexpensive BCl3 provided synthetically useful borylated building blocks. The outcome of the process depends on the reaction temperature, with borylated phenanthrenes obtained at 60 °C and phenanthrene‐fused borylated cyclobutanes formed at 0 °C. Based on DFT calculations, a mechanism for these novel transformations has been proposed, which involves an uncommon skeletal rearrangement, including migration of a methyl group and alkyne fragmentation, unprecedented in BCl3‐promoted cyclization reactions.
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Affiliation(s)
- Ana Milián
- Universidad de Alcalá (IRYCIS). Departamento de Química Orgánica y Química Inorgánica, Instituto de Investigación Química "Andrés M. del Río" (IQAR). Campus Científico-Tecnológico, Facultad de Farmacia, Autovía A-II, Km 33.1, 28805-Alcalá de Henares, Madrid, Spain
| | - Manuel A Fernández-Rodríguez
- Universidad de Alcalá (IRYCIS). Departamento de Química Orgánica y Química Inorgánica, Instituto de Investigación Química "Andrés M. del Río" (IQAR). Campus Científico-Tecnológico, Facultad de Farmacia, Autovía A-II, Km 33.1, 28805-Alcalá de Henares, Madrid, Spain
| | - Estíbaliz Merino
- Universidad de Alcalá (IRYCIS). Departamento de Química Orgánica y Química Inorgánica, Instituto de Investigación Química "Andrés M. del Río" (IQAR). Campus Científico-Tecnológico, Facultad de Farmacia, Autovía A-II, Km 33.1, 28805-Alcalá de Henares, Madrid, Spain
| | - Juan J Vaquero
- Universidad de Alcalá (IRYCIS). Departamento de Química Orgánica y Química Inorgánica, Instituto de Investigación Química "Andrés M. del Río" (IQAR). Campus Científico-Tecnológico, Facultad de Farmacia, Autovía A-II, Km 33.1, 28805-Alcalá de Henares, Madrid, Spain
| | - Patricia García-García
- Universidad de Alcalá (IRYCIS). Departamento de Química Orgánica y Química Inorgánica, Instituto de Investigación Química "Andrés M. del Río" (IQAR). Campus Científico-Tecnológico, Facultad de Farmacia, Autovía A-II, Km 33.1, 28805-Alcalá de Henares, Madrid, Spain
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5
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Altarejos J, Valero A, Manzano R, Carreras J. Synthesis of Tri‐ and Tetrasubstituted Alkenyl Boronates from Alkynes. European J Org Chem 2022. [DOI: 10.1002/ejoc.202200521] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Julia Altarejos
- Universidad de Alcalá Facultad de Ciencias: Universidad de Alcala Facultad de Ciencias Química Orgánica y Química Inorgánica SPAIN
| | - Antonio Valero
- Universidad de Alcalá Facultad de Ciencias: Universidad de Alcala Facultad de Ciencias Química Orgánica y Química Inorgánica SPAIN
| | - Rubén Manzano
- Universidad de Alcalá Facultad de Ciencias: Universidad de Alcala Facultad de Ciencias Química Orgánica y Química Inorgánica SPAIN
| | - Javier Carreras
- Universidad de Alcalá Facultad de Ciencias: Universidad de Alcala Facultad de Ciencias Química Orgánica y Química Inorgánica Carretera Madrid-Barcelona km 33,6, Campus Universitario.Facultad de Farmacia 28805 Alcalá de Henares SPAIN
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6
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Milián A, Fernández‐Rodríguez MA, Merino E, Vaquero JJ, García‐García P. Metal‐Free Temperature‐Controlled Regiodivergent Borylative Cyclizations of Enynes: BCl
3
‐Promoted Skeletal Rearrangement. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202205651] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Ana Milián
- Universidad de Alcalá (IRYCIS). Departamento de Química Orgánica y Química Inorgánica Instituto de Investigación Química “Andrés M. del Río” (IQAR). Campus Científico-Tecnológico, Facultad de Farmacia Autovía A-II, Km 33.1 28805-Alcalá de Henares Madrid Spain
| | - Manuel A. Fernández‐Rodríguez
- Universidad de Alcalá (IRYCIS). Departamento de Química Orgánica y Química Inorgánica Instituto de Investigación Química “Andrés M. del Río” (IQAR). Campus Científico-Tecnológico, Facultad de Farmacia Autovía A-II, Km 33.1 28805-Alcalá de Henares Madrid Spain
| | - Estíbaliz Merino
- Universidad de Alcalá (IRYCIS). Departamento de Química Orgánica y Química Inorgánica Instituto de Investigación Química “Andrés M. del Río” (IQAR). Campus Científico-Tecnológico, Facultad de Farmacia Autovía A-II, Km 33.1 28805-Alcalá de Henares Madrid Spain
| | - Juan J. Vaquero
- Universidad de Alcalá (IRYCIS). Departamento de Química Orgánica y Química Inorgánica Instituto de Investigación Química “Andrés M. del Río” (IQAR). Campus Científico-Tecnológico, Facultad de Farmacia Autovía A-II, Km 33.1 28805-Alcalá de Henares Madrid Spain
| | - Patricia García‐García
- Universidad de Alcalá (IRYCIS). Departamento de Química Orgánica y Química Inorgánica Instituto de Investigación Química “Andrés M. del Río” (IQAR). Campus Científico-Tecnológico, Facultad de Farmacia Autovía A-II, Km 33.1 28805-Alcalá de Henares Madrid Spain
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7
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Li S, Hu C, Cui X, Zhang J, Liu LL, Wu L. Site‐Fixed Hydroboration of Terminal and Internal Alkenes using BX
3
/
i
Pr
2
NEt**. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202111978] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Sida Li
- State Key Laboratory for Oxo Synthesis and Selective Oxidation Suzhou Research Institute of LICP Lanzhou Institute of Chemical Physics (LICP) Chinese Academy of Sciences Lanzhou 730000 China
- University of Chinese Academy of Sciences Beijing 100049 China
| | - Chenyang Hu
- Shenzhen Grubbs Institute and Department of Chemistry Southern University of Science and Technology Shenzhen 518055 China
| | - Xin Cui
- State Key Laboratory for Oxo Synthesis and Selective Oxidation Suzhou Research Institute of LICP Lanzhou Institute of Chemical Physics (LICP) Chinese Academy of Sciences Lanzhou 730000 China
| | - Jiong Zhang
- State Key Laboratory for Oxo Synthesis and Selective Oxidation Suzhou Research Institute of LICP Lanzhou Institute of Chemical Physics (LICP) Chinese Academy of Sciences Lanzhou 730000 China
- University of Chinese Academy of Sciences Beijing 100049 China
| | - Liu Leo Liu
- Shenzhen Grubbs Institute and Department of Chemistry Southern University of Science and Technology Shenzhen 518055 China
| | - Lipeng Wu
- State Key Laboratory for Oxo Synthesis and Selective Oxidation Suzhou Research Institute of LICP Lanzhou Institute of Chemical Physics (LICP) Chinese Academy of Sciences Lanzhou 730000 China
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8
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Zhang J, Yang L, Liu F, Fu Y, Liu J, Popov AA, Ma J, Feng X. A Modular Cascade Synthetic Strategy Toward Structurally Constrained Boron‐Doped Polycyclic Aromatic Hydrocarbons. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202109840] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Affiliation(s)
- Jin‐Jiang Zhang
- Center for Advancing Electronics Dresden (cfaed) & Faculty of Chemistry and Food Chemistry Technische Universität Dresden Mommsenstrasse 4 01062 Dresden Germany
| | - Lin Yang
- Center for Advancing Electronics Dresden (cfaed) & Faculty of Chemistry and Food Chemistry Technische Universität Dresden Mommsenstrasse 4 01062 Dresden Germany
| | - Fupin Liu
- Center of Spectroelectrochemistry Leibniz Institute for Solid State and Materials Research (IFW) Dresden Helmholtzstrasse 20 01069 Dresden Germany
| | - Yubin Fu
- Center for Advancing Electronics Dresden (cfaed) & Faculty of Chemistry and Food Chemistry Technische Universität Dresden Mommsenstrasse 4 01062 Dresden Germany
| | - Junzhi Liu
- Department of Chemistry State Key Laboratory of Synthetic Chemistry The University of Hong Kong Pokfulam Road Hong Kong China
| | - Alexey A. Popov
- Center of Spectroelectrochemistry Leibniz Institute for Solid State and Materials Research (IFW) Dresden Helmholtzstrasse 20 01069 Dresden Germany
| | - Ji Ma
- Center for Advancing Electronics Dresden (cfaed) & Faculty of Chemistry and Food Chemistry Technische Universität Dresden Mommsenstrasse 4 01062 Dresden Germany
| | - Xinliang Feng
- Center for Advancing Electronics Dresden (cfaed) & Faculty of Chemistry and Food Chemistry Technische Universität Dresden Mommsenstrasse 4 01062 Dresden Germany
- Max Planck Institute of Microstructure Physics Weinberg 2 06120 Halle Germany
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9
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Zhang J, Yang L, Liu F, Fu Y, Liu J, Popov AA, Ma J, Feng X. A Modular Cascade Synthetic Strategy Toward Structurally Constrained Boron-Doped Polycyclic Aromatic Hydrocarbons. Angew Chem Int Ed Engl 2021; 60:25695-25700. [PMID: 34623744 PMCID: PMC9298420 DOI: 10.1002/anie.202109840] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2021] [Revised: 10/07/2021] [Indexed: 11/28/2022]
Abstract
A novel synthetic strategy was developed for the construction of difficult-to-access structurally constrained boron-doped polycyclic aromatic hydrocarbons (sc-B-PAHs) via a cascade reaction from the readily available ortho-aryl-substituted diarylalkynes. This domino process involves borylative cyclization, 1,4-boron migration and successive two-fold electrophilic borylation. Two types of sc-B-PAHs bearing B-doped [4]helicene (1 a-1 i) or BN-doped [4]helicene (1 n-1 t) and double [4]helicene (1 u-1 v) are constructed by this cascade reaction. Remarkably, this synthetic strategy is characterized by modest yields (20-50 %) and broad substrate scope (18 examples) with versatile functional group tolerance. The resultant sc-B-PAHs show good stability under ambient conditions and are thoroughly investigated by X-ray crystallography, UV/Vis absorption and fluorescence spectroscopy, and cyclic voltammetry. Interestingly enough, BN-doped [4]helicene 1 o forms a unique alternating π-stacked dimer of enantiomers within a helical columnar superstructure, while BN-doped double [4]helicene 1 u establishes an unprecedented π-stacked trimeric sandwich structure with a rare 2D lamellar π-stacking. The synthetic approach reported herein represents a powerful tool for the rapid generation of novel sc-B-PAHs, which are highly attractive for the elucidation of the structure-property relationship and for potential optoelectronic applications.
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Affiliation(s)
- Jin‐Jiang Zhang
- Center for Advancing Electronics Dresden (cfaed) &Faculty of Chemistry and Food ChemistryTechnische Universität DresdenMommsenstrasse 401062DresdenGermany
| | - Lin Yang
- Center for Advancing Electronics Dresden (cfaed) &Faculty of Chemistry and Food ChemistryTechnische Universität DresdenMommsenstrasse 401062DresdenGermany
| | - Fupin Liu
- Center of SpectroelectrochemistryLeibniz Institute for Solid State and Materials Research (IFW) DresdenHelmholtzstrasse 2001069DresdenGermany
| | - Yubin Fu
- Center for Advancing Electronics Dresden (cfaed) &Faculty of Chemistry and Food ChemistryTechnische Universität DresdenMommsenstrasse 401062DresdenGermany
| | - Junzhi Liu
- Department of ChemistryState Key Laboratory of Synthetic ChemistryThe University of Hong KongPokfulam RoadHong KongChina
| | - Alexey A. Popov
- Center of SpectroelectrochemistryLeibniz Institute for Solid State and Materials Research (IFW) DresdenHelmholtzstrasse 2001069DresdenGermany
| | - Ji Ma
- Center for Advancing Electronics Dresden (cfaed) &Faculty of Chemistry and Food ChemistryTechnische Universität DresdenMommsenstrasse 401062DresdenGermany
| | - Xinliang Feng
- Center for Advancing Electronics Dresden (cfaed) &Faculty of Chemistry and Food ChemistryTechnische Universität DresdenMommsenstrasse 401062DresdenGermany
- Max Planck Institute of Microstructure PhysicsWeinberg 206120HalleGermany
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10
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Li S, Hu C, Cui X, Zhang J, Liu LL, Wu L. Site-Fixed Hydroboration of Terminal and Internal Alkenes using BX 3 / i Pr 2 NEt*. Angew Chem Int Ed Engl 2021; 60:26238-26245. [PMID: 34536251 DOI: 10.1002/anie.202111978] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2021] [Indexed: 12/27/2022]
Abstract
An unprecedented and general hydroboration of alkenes with BX3 (X=Br, Cl) as the boration reagent in the presence of i Pr2 NEt is reported. The addition of i Pr2 NEt not only suppresses alkene polymerization and haloboration side reactions but also provides an "H" source for hydroboration. More importantly, the site-fixed installation of a boryl group at the original position of the internal double bond is readily achieved in contrast to conventional transition-metal-catalyzed hydroboration processes. Further application to the synthesis of 1,n-diborylalkanes (n=3-10) is also demonstrated. Preliminary mechanistic studies reveal a major reaction pathway that involves radical species and operates through a frustrated Lewis pair type single-electron-transfer mechanism.
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Affiliation(s)
- Sida Li
- State Key Laboratory for Oxo Synthesis and Selective Oxidation, Suzhou Research Institute of LICP, Lanzhou Institute of Chemical Physics (LICP), Chinese Academy of Sciences, Lanzhou, 730000, China.,University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Chenyang Hu
- Shenzhen Grubbs Institute and Department of Chemistry, Southern University of Science and Technology, Shenzhen, 518055, China
| | - Xin Cui
- State Key Laboratory for Oxo Synthesis and Selective Oxidation, Suzhou Research Institute of LICP, Lanzhou Institute of Chemical Physics (LICP), Chinese Academy of Sciences, Lanzhou, 730000, China
| | - Jiong Zhang
- State Key Laboratory for Oxo Synthesis and Selective Oxidation, Suzhou Research Institute of LICP, Lanzhou Institute of Chemical Physics (LICP), Chinese Academy of Sciences, Lanzhou, 730000, China.,University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Liu Leo Liu
- Shenzhen Grubbs Institute and Department of Chemistry, Southern University of Science and Technology, Shenzhen, 518055, China
| | - Lipeng Wu
- State Key Laboratory for Oxo Synthesis and Selective Oxidation, Suzhou Research Institute of LICP, Lanzhou Institute of Chemical Physics (LICP), Chinese Academy of Sciences, Lanzhou, 730000, China
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11
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An S, Zhang Z, Li P. Metal‐Free Synthesis of Selenodihydronaphthalenes by Selenoxide‐Mediated Electrophilic Cyclization of Alkynes. European J Org Chem 2021. [DOI: 10.1002/ejoc.202100423] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Affiliation(s)
- Shaoyu An
- State Key Laboratory of Chemical Resource Engineering, Department of Organic Chemistry College of Chemistry Beijing University of Chemical Technology Beijing 100029 P. R. China
| | - Zhong Zhang
- State Key Laboratory of Chemical Resource Engineering, Department of Organic Chemistry College of Chemistry Beijing University of Chemical Technology Beijing 100029 P. R. China
| | - Pingfan Li
- State Key Laboratory of Chemical Resource Engineering, Department of Organic Chemistry College of Chemistry Beijing University of Chemical Technology Beijing 100029 P. R. China
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12
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Zhang J, Tang M, Fu Y, Low K, Ma J, Yang L, Weigand JJ, Liu J, Yam VW, Feng X. One-Pot Synthesis of Boron-Doped Polycyclic Aromatic Hydrocarbons via 1,4-Boron Migration. Angew Chem Int Ed Engl 2021; 60:2833-2838. [PMID: 33112494 PMCID: PMC7898796 DOI: 10.1002/anie.202011237] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2020] [Indexed: 11/16/2022]
Abstract
Herein, we demonstrate a novel one-pot synthetic method towards a series of boron-doped polycyclic aromatic hydrocarbons (B-PAHs, 1 a-1 o), including hitherto unknown B-doped zethrene derivatives, from ortho-aryl substituted diarylalkynes with high atom efficiency and broad substrate scopes. A reaction mechanism is proposed based on the experimental investigation together with the theoretical calculations, which involves a unique 1,4-boron migration process. The resultant benchtop-stable B-PAHs are thoroughly investigated by X-ray crystallography, cyclic voltammetry, UV/Vis absorption, and fluorescence spectroscopies. The blue and green organic light-emitting diode (OLED) devices based on 1 f and 1 k are further fabricated, demonstrating the promising application potential of B-PAHs in organic optoelectronics.
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Affiliation(s)
- Jin‐Jiang Zhang
- Center for Advancing Electronics Dresden (cfaed) & Faculty of Chemistry and Food ChemistryTechnische Universität Dresden01062DresdenGermany
| | - Man‐Chung Tang
- Institute of Molecular Functional Materials and Department of ChemistryThe University of Hong KongRokfulam RoadHong KongP. R. China
| | - Yubin Fu
- Center for Advancing Electronics Dresden (cfaed) & Faculty of Chemistry and Food ChemistryTechnische Universität Dresden01062DresdenGermany
| | - Kam‐Hung Low
- Institute of Molecular Functional Materials and Department of ChemistryThe University of Hong KongRokfulam RoadHong KongP. R. China
| | - Ji Ma
- Center for Advancing Electronics Dresden (cfaed) & Faculty of Chemistry and Food ChemistryTechnische Universität Dresden01062DresdenGermany
| | - Lin Yang
- Center for Advancing Electronics Dresden (cfaed) & Faculty of Chemistry and Food ChemistryTechnische Universität Dresden01062DresdenGermany
| | - Jan J. Weigand
- Chair of Inorganic Molecular Chemistry & Faculty of Chemistry and Food ChemistryTechnische Universität Dresden01062DresdenGermany
| | - Junzhi Liu
- Institute of Molecular Functional Materials and Department of ChemistryThe University of Hong KongRokfulam RoadHong KongP. R. China
- State Key Laboratory of Synthetic Chemistry and Department of ChemistryThe University of Hong KongRokfulam RoadHong KongP. R. China
| | - Vivian Wing‐Wah Yam
- Institute of Molecular Functional Materials and Department of ChemistryThe University of Hong KongRokfulam RoadHong KongP. R. China
| | - Xinliang Feng
- Center for Advancing Electronics Dresden (cfaed) & Faculty of Chemistry and Food ChemistryTechnische Universität Dresden01062DresdenGermany
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13
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Zhang J, Tang M, Fu Y, Low K, Ma J, Yang L, Weigand JJ, Liu J, Yam VW, Feng X. One‐Pot Synthesis of Boron‐Doped Polycyclic Aromatic Hydrocarbons via 1,4‐Boron Migration. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202011237] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Jin‐Jiang Zhang
- Center for Advancing Electronics Dresden (cfaed) & Faculty of Chemistry and Food Chemistry Technische Universität Dresden 01062 Dresden Germany
| | - Man‐Chung Tang
- Institute of Molecular Functional Materials and Department of Chemistry The University of Hong Kong Rokfulam Road Hong Kong P. R. China
| | - Yubin Fu
- Center for Advancing Electronics Dresden (cfaed) & Faculty of Chemistry and Food Chemistry Technische Universität Dresden 01062 Dresden Germany
| | - Kam‐Hung Low
- Institute of Molecular Functional Materials and Department of Chemistry The University of Hong Kong Rokfulam Road Hong Kong P. R. China
| | - Ji Ma
- Center for Advancing Electronics Dresden (cfaed) & Faculty of Chemistry and Food Chemistry Technische Universität Dresden 01062 Dresden Germany
| | - Lin Yang
- Center for Advancing Electronics Dresden (cfaed) & Faculty of Chemistry and Food Chemistry Technische Universität Dresden 01062 Dresden Germany
| | - Jan J. Weigand
- Chair of Inorganic Molecular Chemistry & Faculty of Chemistry and Food Chemistry Technische Universität Dresden 01062 Dresden Germany
| | - Junzhi Liu
- Institute of Molecular Functional Materials and Department of Chemistry The University of Hong Kong Rokfulam Road Hong Kong P. R. China
- State Key Laboratory of Synthetic Chemistry and Department of Chemistry The University of Hong Kong Rokfulam Road Hong Kong P. R. China
| | - Vivian Wing‐Wah Yam
- Institute of Molecular Functional Materials and Department of Chemistry The University of Hong Kong Rokfulam Road Hong Kong P. R. China
| | - Xinliang Feng
- Center for Advancing Electronics Dresden (cfaed) & Faculty of Chemistry and Food Chemistry Technische Universität Dresden 01062 Dresden Germany
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14
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Fricero P, Bialy L, Czechtizky W, Méndez M, Harrity JPA. Design and Synthesis of New Pyrazole‐Based Heterotricycles and their Derivatization by Automated Library Synthesis. ChemMedChem 2020; 15:1634-1638. [DOI: 10.1002/cmdc.202000187] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2020] [Indexed: 01/09/2023]
Affiliation(s)
- Prisca Fricero
- Department of ChemistryUniversity of Sheffield Sheffield S3 7HF UK
| | - Laurent Bialy
- Integrated Drug discovery, R&D, Sanofi Aventis Deutschland GmbHIndustriepark Höchst 65926 Frankfurt am Main Germany
| | - Werngard Czechtizky
- Integrated Drug discovery, R&D, Sanofi Aventis Deutschland GmbHIndustriepark Höchst 65926 Frankfurt am Main Germany
- Present address: Respiratory, Inflammation, Autoimmunity IMED Biotech UnitAstraZeneca Pepparedsleden 1, Mölndal SE-431 83 Gothenburg Sweden
| | - María Méndez
- Integrated Drug discovery, R&D, Sanofi Aventis Deutschland GmbHIndustriepark Höchst 65926 Frankfurt am Main Germany
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15
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Liu X, Ming W, Friedrich A, Kerner F, Marder TB. Copper-Catalyzed Triboration of Terminal Alkynes Using B 2 pin 2 : Efficient Synthesis of 1,1,2-Triborylalkenes. Angew Chem Int Ed Engl 2020; 59:304-309. [PMID: 31502712 PMCID: PMC6972586 DOI: 10.1002/anie.201908466] [Citation(s) in RCA: 40] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2019] [Revised: 08/31/2019] [Indexed: 02/04/2023]
Abstract
We report herein the catalytic triboration of terminal alkynes with B2 pin2 (bis(pinacolato)diboron) using readily available Cu(OAc)2 and Pn Bu3 . Various 1,1,2-triborylalkenes, a class of compounds that have been demonstrated to be potential matrix metalloproteinase (MMP-2) inhibitors, were obtained directly in moderate to good yields. The process features mild reaction conditions, a broad substrate scope, and good functional group tolerance. This copper-catalyzed reaction can be conducted on a gram scale to produce the corresponding 1,1,2-triborylalkenes in modest yields. The utility of these products was demonstrated by further transformations of the C-B bonds to prepare gem-dihaloborylalkenes (F, Cl, Br), monohaloborylalkenes (Cl, Br), and trans-diaryldiborylalkenes, which serve as important synthons and have previously been challenging to prepare.
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Affiliation(s)
- Xiaocui Liu
- Institute of Inorganic Chemistry and Institute for Sustainable Chemistry & Catalysis with BoronJulius-Maximilians-Universität WürzburgAm Hubland97074WürzburgGermany
| | - Wenbo Ming
- Institute of Inorganic Chemistry and Institute for Sustainable Chemistry & Catalysis with BoronJulius-Maximilians-Universität WürzburgAm Hubland97074WürzburgGermany
| | - Alexandra Friedrich
- Institute of Inorganic Chemistry and Institute for Sustainable Chemistry & Catalysis with BoronJulius-Maximilians-Universität WürzburgAm Hubland97074WürzburgGermany
| | - Florian Kerner
- Institute of Inorganic Chemistry and Institute for Sustainable Chemistry & Catalysis with BoronJulius-Maximilians-Universität WürzburgAm Hubland97074WürzburgGermany
| | - Todd B. Marder
- Institute of Inorganic Chemistry and Institute for Sustainable Chemistry & Catalysis with BoronJulius-Maximilians-Universität WürzburgAm Hubland97074WürzburgGermany
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16
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Liu X, Ming W, Friedrich A, Kerner F, Marder TB. Kupfer‐katalysierte Triborierung terminaler Alkine mit B
2
pin
2
: Effiziente Synthese von 1,1,2‐Triborylalkenen. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201908466] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Xiaocui Liu
- Institut für Anorganische Chemie und Institut für Nachhaltige Chemie & Katalyse mit Bor Julius-Maximilians-Universität Würzburg Am Hubland 97074 Würzburg Deutschland
| | - Wenbo Ming
- Institut für Anorganische Chemie und Institut für Nachhaltige Chemie & Katalyse mit Bor Julius-Maximilians-Universität Würzburg Am Hubland 97074 Würzburg Deutschland
| | - Alexandra Friedrich
- Institut für Anorganische Chemie und Institut für Nachhaltige Chemie & Katalyse mit Bor Julius-Maximilians-Universität Würzburg Am Hubland 97074 Würzburg Deutschland
| | - Florian Kerner
- Institut für Anorganische Chemie und Institut für Nachhaltige Chemie & Katalyse mit Bor Julius-Maximilians-Universität Würzburg Am Hubland 97074 Würzburg Deutschland
| | - Todd B. Marder
- Institut für Anorganische Chemie und Institut für Nachhaltige Chemie & Katalyse mit Bor Julius-Maximilians-Universität Würzburg Am Hubland 97074 Würzburg Deutschland
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17
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18
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Michael J. Ingleson. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/anie.201812314] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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19
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Michael J. Ingleson. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201812314] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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20
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Wang D, Xue X, Houk KN, Shi Z. Mild Ring‐Opening 1,3‐Hydroborations of Non‐Activated Cyclopropanes. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201811036] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Di Wang
- State Key Laboratory of Coordination ChemistrySchool of Chemistry and Chemical EngineeringNanjing University Nanjing 210093 China
| | - Xiao‐Song Xue
- Department of Chemistry and BiochemistryUniversity of California Los Angeles CA 90095 USA
- State Key Laboratory of Elemento-organic ChemistryCollege of ChemistryNankai University Tianjin 300071 China
| | - Kendall N. Houk
- Department of Chemistry and BiochemistryUniversity of California Los Angeles CA 90095 USA
| | - Zhuangzhi Shi
- State Key Laboratory of Coordination ChemistrySchool of Chemistry and Chemical EngineeringNanjing University Nanjing 210093 China
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21
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Wang D, Xue X, Houk KN, Shi Z. Mild Ring‐Opening 1,3‐Hydroborations of Non‐Activated Cyclopropanes. Angew Chem Int Ed Engl 2018; 57:16861-16865. [DOI: 10.1002/anie.201811036] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2018] [Indexed: 12/15/2022]
Affiliation(s)
- Di Wang
- State Key Laboratory of Coordination ChemistrySchool of Chemistry and Chemical EngineeringNanjing University Nanjing 210093 China
| | - Xiao‐Song Xue
- Department of Chemistry and BiochemistryUniversity of California Los Angeles CA 90095 USA
- State Key Laboratory of Elemento-organic ChemistryCollege of ChemistryNankai University Tianjin 300071 China
| | - Kendall N. Houk
- Department of Chemistry and BiochemistryUniversity of California Los Angeles CA 90095 USA
| | - Zhuangzhi Shi
- State Key Laboratory of Coordination ChemistrySchool of Chemistry and Chemical EngineeringNanjing University Nanjing 210093 China
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22
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Lv J, Zhao B, Liu L, Han Y, Yuan Y, Shi Z. Boron Trichloride‐Mediated Synthesis of Indoles
via
the Aminoboration of Alkynes. Adv Synth Catal 2018. [DOI: 10.1002/adsc.201800509] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- Jiahang Lv
- College of Chemistry and Chemical EngineeringYangzhou University Yangzhou 225002 People's Republic of China
- State Key Laboratory of Coordination Chemistry, School of Chemistry and Chemical EngineeringNanjing University Nanjing 210093 People's Republic of China
| | - Binlin Zhao
- State Key Laboratory of Coordination Chemistry, School of Chemistry and Chemical EngineeringNanjing University Nanjing 210093 People's Republic of China
| | - Li Liu
- Jiangsu Key Laboratory of Advanced Catalytic Materials and TechnologyChangzhou University Changzhou 213164 People's Republic of China
| | - Ying Han
- College of Chemistry and Chemical EngineeringYangzhou University Yangzhou 225002 People's Republic of China
| | - Yu Yuan
- College of Chemistry and Chemical EngineeringYangzhou University Yangzhou 225002 People's Republic of China
| | - Zhuangzhi Shi
- College of Chemistry and Chemical EngineeringYangzhou University Yangzhou 225002 People's Republic of China
- State Key Laboratory of Coordination Chemistry, School of Chemistry and Chemical EngineeringNanjing University Nanjing 210093 People's Republic of China
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23
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Kahan RJ, Crossley DL, Cid J, Radcliffe JE, Ingleson MJ. Synthesis, Characterization, and Functionalization of 1-Boraphenalenes. Angew Chem Int Ed Engl 2018; 57:8084-8088. [PMID: 29750391 PMCID: PMC6175385 DOI: 10.1002/anie.201803180] [Citation(s) in RCA: 44] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2018] [Indexed: 01/20/2023]
Abstract
1-Boraphenalenes have been synthesized by reaction of BBr3 with 1-(aryl-ethynyl)naphthalenes, 1-ethynylnaphthalene, and 1-(pent-1-yn-1-yl)naphthalene and they can be selectively functionalized at boron or carbon to form bench-stable products. All of these 1-boraphenalenes have LUMOs localized on the planar C12 B core that are closely comparable in character to isoelectronic phenalenyl cations. In contrast to the comparable LUMOs, the aromatic stabilization of the C5 B ring in 1-boraphenalenes is dramatically lower than the C6 rings in phenalenyl cations. This is due to the occupied orbitals of π symmetry being less delocalised in the 1-boraphenalenes.
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Affiliation(s)
- Rachel J. Kahan
- School of ChemistryUniversity of ManchesterManchesterM13 9PLUK
| | | | - Jessica Cid
- School of ChemistryUniversity of ManchesterManchesterM13 9PLUK
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24
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Kahan RJ, Crossley DL, Cid J, Radcliffe JE, Ingleson MJ. Synthesis, Characterization, and Functionalization of 1‐Boraphenalenes. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201803180] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- Rachel J. Kahan
- School of ChemistryUniversity of Manchester Manchester M13 9PL UK
| | | | - Jessica Cid
- School of ChemistryUniversity of Manchester Manchester M13 9PL UK
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25
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Mora-Radó H, Sotorríos L, Ball-Jones MP, Bialy L, Czechtizky W, Méndez M, Gómez-Bengoa E, Harrity JPA. Synthetic and Mechanistic Investigation of an Oxime Ether Electrocyclization Approach to Heteroaromatic Boronic Acid Derivatives. Chemistry 2018; 24:9530-9534. [DOI: 10.1002/chem.201802350] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2018] [Indexed: 11/11/2022]
Affiliation(s)
- Helena Mora-Radó
- Department of Chemistry; University of Sheffield; Sheffield S3 7HF U.K
| | - Lia Sotorríos
- Departamento de Química Organica I; Universidad del País Vasco; San Sebastian 20018 Spain
| | | | - Laurent Bialy
- Integrated Drug discovery, R&D; Sanofi Aventis (Deutschland) GmbH; Industriepark Höchst 65926 Frankfurt Am Main Germany
| | - Werngard Czechtizky
- Integrated Drug discovery, R&D; Sanofi Aventis (Deutschland) GmbH; Industriepark Höchst 65926 Frankfurt Am Main Germany
- Present address: Respiratory, Inflammation, Autoimmunity IMED Biotech Unit; AstraZeneca; Gothenburg Sweden
| | - María Méndez
- Integrated Drug discovery, R&D; Sanofi Aventis (Deutschland) GmbH; Industriepark Höchst 65926 Frankfurt Am Main Germany
| | - Enrique Gómez-Bengoa
- Departamento de Química Organica I; Universidad del País Vasco; San Sebastian 20018 Spain
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26
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Wilkins LC, Soltani Y, Lawson JR, Slater B, Melen RL. Divergent Elementoboration: 1,3-Haloboration versus 1,1-Carboboration of Propargyl Esters. Chemistry 2018; 24:7364-7368. [PMID: 29700863 PMCID: PMC6055811 DOI: 10.1002/chem.201801493] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2018] [Indexed: 01/03/2023]
Abstract
This work showcases the 1,3-haloboration reaction of alkynes in which boron and chlorine add to propargyl systems in a proposed sequential oxazoliumborate formation with subsequent ring-opening and chloride migration. In addition, the functionalization of these propargyl esters with dimethyl groups in the propargylic position leads to stark differences in reactivity whereby a formal 1,1-carboboration prevails to give the 2,2-dichloro-3,4-dihydrodioxaborinine products as an intramolecular chelate. Density functional theory calculations are used to rationalize the distinct carboboration and haloboration pathways. Significantly, this method represents a metal-free route to highly functionalized compounds in a single step to give structurally complex products.
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Affiliation(s)
- Lewis C Wilkins
- School of Chemistry, Cardiff University, Main Building, Park Place, Cardiff, CF10 3AT, Cymru/Wales, UK
| | - Yashar Soltani
- School of Chemistry, Cardiff University, Main Building, Park Place, Cardiff, CF10 3AT, Cymru/Wales, UK
| | - James R Lawson
- School of Chemistry, Cardiff University, Main Building, Park Place, Cardiff, CF10 3AT, Cymru/Wales, UK
| | - Ben Slater
- Department of Chemistry, University College London, 20 Gordon Street, London, WC1H 0AJ, UK
| | - Rebecca L Melen
- School of Chemistry, Cardiff University, Main Building, Park Place, Cardiff, CF10 3AT, Cymru/Wales, UK
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27
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von Grotthuss E, John A, Kaese T, Wagner M. Doping Polycyclic Aromatics with Boron for Superior Performance in Materials Science and Catalysis. ASIAN J ORG CHEM 2017. [DOI: 10.1002/ajoc.201700495] [Citation(s) in RCA: 207] [Impact Index Per Article: 29.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Esther von Grotthuss
- Institut für Anorganische Chemie; Goethe-Universität Frankfurt; Max-von-Laue-Strasse 7 60438 Frankfurt a. M. Germany
| | - Alexandra John
- Institut für Anorganische Chemie; Goethe-Universität Frankfurt; Max-von-Laue-Strasse 7 60438 Frankfurt a. M. Germany
| | - Thomas Kaese
- Institut für Anorganische Chemie; Goethe-Universität Frankfurt; Max-von-Laue-Strasse 7 60438 Frankfurt a. M. Germany
| | - Matthias Wagner
- Institut für Anorganische Chemie; Goethe-Universität Frankfurt; Max-von-Laue-Strasse 7 60438 Frankfurt a. M. Germany
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28
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Wei Y, Liu D, Qing X, Xu L. Mechanistic Insights on a Metal-Free Borylative Cyclization of Alkynes Using BCl3
: A Theoretical Investigation. ASIAN J ORG CHEM 2017. [DOI: 10.1002/ajoc.201700343] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Yu Wei
- Department School of Chemistry and Chemical Engineering; Key Laboratory for Green Processing of Chemical Engineering of Xinjiang Bingtuan; Shihezi University; Shihezi 832003 China
| | - Dongwei Liu
- Department School of Chemistry and Chemical Engineering; Key Laboratory for Green Processing of Chemical Engineering of Xinjiang Bingtuan; Shihezi University; Shihezi 832003 China
| | - Xinlin Qing
- Department School of Chemistry and Chemical Engineering; Key Laboratory for Green Processing of Chemical Engineering of Xinjiang Bingtuan; Shihezi University; Shihezi 832003 China
| | - Liang Xu
- Department School of Chemistry and Chemical Engineering; Key Laboratory for Green Processing of Chemical Engineering of Xinjiang Bingtuan; Shihezi University; Shihezi 832003 China
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29
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John A, Bolte M, Lerner HW, Wagner M. A Vicinal Electrophilic Diborylation Reaction Furnishes Doubly Boron-Doped Polycyclic Aromatic Hydrocarbons. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201701591] [Citation(s) in RCA: 36] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Alexandra John
- Institut für Anorganische Chemie; Goethe-Universität Frankfurt; Max-von-Laue-Strasse 7 60438 Frankfurt am Main Germany
| | - Michael Bolte
- Institut für Anorganische Chemie; Goethe-Universität Frankfurt; Max-von-Laue-Strasse 7 60438 Frankfurt am Main Germany
| | - Hans-Wolfram Lerner
- Institut für Anorganische Chemie; Goethe-Universität Frankfurt; Max-von-Laue-Strasse 7 60438 Frankfurt am Main Germany
| | - Matthias Wagner
- Institut für Anorganische Chemie; Goethe-Universität Frankfurt; Max-von-Laue-Strasse 7 60438 Frankfurt am Main Germany
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30
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John A, Bolte M, Lerner HW, Wagner M. A Vicinal Electrophilic Diborylation Reaction Furnishes Doubly Boron-Doped Polycyclic Aromatic Hydrocarbons. Angew Chem Int Ed Engl 2017; 56:5588-5592. [DOI: 10.1002/anie.201701591] [Citation(s) in RCA: 70] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2017] [Revised: 03/08/2017] [Indexed: 11/05/2022]
Affiliation(s)
- Alexandra John
- Institut für Anorganische Chemie; Goethe-Universität Frankfurt; Max-von-Laue-Strasse 7 60438 Frankfurt am Main Germany
| | - Michael Bolte
- Institut für Anorganische Chemie; Goethe-Universität Frankfurt; Max-von-Laue-Strasse 7 60438 Frankfurt am Main Germany
| | - Hans-Wolfram Lerner
- Institut für Anorganische Chemie; Goethe-Universität Frankfurt; Max-von-Laue-Strasse 7 60438 Frankfurt am Main Germany
| | - Matthias Wagner
- Institut für Anorganische Chemie; Goethe-Universität Frankfurt; Max-von-Laue-Strasse 7 60438 Frankfurt am Main Germany
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31
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Watanabe T, Hirose D, Curran DP, Taniguchi T. Borylative Radical Cyclizations of Benzo[3,4]cyclodec-3-ene-1,5-diynes and N-Heterocyclic Carbene-Boranes. Chemistry 2017; 23:5404-5409. [PMID: 28205265 DOI: 10.1002/chem.201700689] [Citation(s) in RCA: 59] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2017] [Indexed: 11/09/2022]
Abstract
Borylative radical cyclization of benzo[3,4]cyclodec-3-ene-1,5-diynes to provide 5-borylated 6,7,8,9-tetrahydrobenzo[a]azulenes has been developed. The experimental results suggest that the reaction proceeds by a radical chain mechanism, in which di-tert-butyl hyponitrite (TBHN) works as a good radical initiator to form boryl radicals from N-heterocyclic carbene-boranes (NHC-boranes). The present reaction is a rare model that illustrates addition of boryl radicals to alkynes.
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Affiliation(s)
- Takashi Watanabe
- School of Pharmaceutical Sciences, Institute of Medical, Pharmaceutical and Health Sciences, Kanazawa University, Kakuma-machi, Kanazawa, 920-1192, Japan
| | - Daisuke Hirose
- Graduate School of Natural Science and Technology, Kanazawa University, Kakuma-machi, Kanazawa, 920-1192, Japan
| | - Dennis P Curran
- Department of Chemistry, University of Pittsburgh, Pittsburgh, PA, 15260, USA
| | - Tsuyoshi Taniguchi
- School of Pharmaceutical Sciences, Institute of Medical, Pharmaceutical and Health Sciences, Kanazawa University, Kakuma-machi, Kanazawa, 920-1192, Japan
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32
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Jiang J, Zhang Z, Fu Y. Theoretical Investigation on the ClBcat-Promoted Synthesis of Heterocyclic Boronic Esters. ASIAN J ORG CHEM 2016. [DOI: 10.1002/ajoc.201600602] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Julong Jiang
- Hefei National Laboratory for Physical Sciences at the Microscale; iChEM; CAS Key Laboratory of Urban Pollutant Conversion; Anhui Province Key Laboratory of Biomass Clean Energy; Department of Chemistry; University of Science and Technology of China; Hefei 230026 China
| | - Zhenqi Zhang
- Hefei National Laboratory for Physical Sciences at the Microscale; iChEM; CAS Key Laboratory of Urban Pollutant Conversion; Anhui Province Key Laboratory of Biomass Clean Energy; Department of Chemistry; University of Science and Technology of China; Hefei 230026 China
| | - Yao Fu
- Hefei National Laboratory for Physical Sciences at the Microscale; iChEM; CAS Key Laboratory of Urban Pollutant Conversion; Anhui Province Key Laboratory of Biomass Clean Energy; Department of Chemistry; University of Science and Technology of China; Hefei 230026 China
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33
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Warner AJ, Churn A, McGough JS, Ingleson MJ. BCl
3
‐Induced Annulative Oxo‐ and Thioboration for the Formation of C3‐Borylated Benzofurans and Benzothiophenes. Angew Chem Int Ed Engl 2016. [DOI: 10.1002/ange.201610014] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Andrew J. Warner
- School of Chemistry University of Manchester Oxford Road Manchester M13 9PL UK
| | - Anna Churn
- School of Chemistry University of Manchester Oxford Road Manchester M13 9PL UK
| | - John S. McGough
- School of Chemistry University of Manchester Oxford Road Manchester M13 9PL UK
| | - Michael J. Ingleson
- School of Chemistry University of Manchester Oxford Road Manchester M13 9PL UK
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34
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Warner AJ, Churn A, McGough JS, Ingleson MJ. BCl 3 -Induced Annulative Oxo- and Thioboration for the Formation of C3-Borylated Benzofurans and Benzothiophenes. Angew Chem Int Ed Engl 2016; 56:354-358. [PMID: 27897368 PMCID: PMC5396270 DOI: 10.1002/anie.201610014] [Citation(s) in RCA: 67] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2016] [Indexed: 11/06/2022]
Abstract
BCl3 -induced borylative cyclization of aryl-alkynes possessing ortho-EMe (E=S, O) groups represents a simple, metal-free method for the formation of C3-borylated benzothiophenes and benzofurans. The dichloro(heteroaryl)borane primary products can be protected to form synthetically ubiquitous pinacol boronate esters or used in situ in Suzuki-Miyaura cross couplings to generate 2,3-disubstituted heteroarenes from simple alkyne precursors in one pot. In a number of cases alkyne trans-haloboration occurs alongside, or instead of, borylative cyclization and the factors controlling the reaction outcome are determined.
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Affiliation(s)
- Andrew J Warner
- School of Chemistry, University of Manchester, Oxford Road, Manchester, M13 9PL, UK
| | - Anna Churn
- School of Chemistry, University of Manchester, Oxford Road, Manchester, M13 9PL, UK
| | - John S McGough
- School of Chemistry, University of Manchester, Oxford Road, Manchester, M13 9PL, UK
| | - Michael J Ingleson
- School of Chemistry, University of Manchester, Oxford Road, Manchester, M13 9PL, UK
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35
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Affiliation(s)
- Elena Buñuel
- Departamento de Química Orgánica; Facultad de Ciencias; Universidad Autónoma de Madrid; Av. Francisco Tomás y Valiente 7, Cantoblanco 28049 Madrid Spain
| | - Diego J. Cárdenas
- Departamento de Química Orgánica; Facultad de Ciencias; Universidad Autónoma de Madrid; Av. Francisco Tomás y Valiente 7, Cantoblanco 28049 Madrid Spain
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36
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Mora-Radó H, Bialy L, Czechtizky W, Méndez M, Harrity JPA. An Alkyne Diboration/6π-Electrocyclization Strategy for the Synthesis of Pyridine Boronic Acid Derivatives. Angew Chem Int Ed Engl 2016; 55:5834-6. [DOI: 10.1002/anie.201601084] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2016] [Revised: 02/19/2016] [Indexed: 11/12/2022]
Affiliation(s)
- Helena Mora-Radó
- Department of Chemistry; University of Sheffield; Sheffield S3 7HF UK
| | - Laurent Bialy
- Sanofi; Industrial Park Hoechst 65926 Frankfurt am Main Germany
| | | | - María Méndez
- Sanofi; Industrial Park Hoechst 65926 Frankfurt am Main Germany
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37
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Mora-Radó H, Bialy L, Czechtizky W, Méndez M, Harrity JPA. An Alkyne Diboration/6π-Electrocyclization Strategy for the Synthesis of Pyridine Boronic Acid Derivatives. Angew Chem Int Ed Engl 2016. [DOI: 10.1002/ange.201601084] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Helena Mora-Radó
- Department of Chemistry; University of Sheffield; Sheffield S3 7HF UK
| | - Laurent Bialy
- Sanofi; Industrial Park Hoechst 65926 Frankfurt am Main Germany
| | | | - María Méndez
- Sanofi; Industrial Park Hoechst 65926 Frankfurt am Main Germany
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