1
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Jansen-van Vuuren RD, Liu S, Miah MAJ, Cerkovnik J, Košmrlj J, Snieckus V. The Versatile and Strategic O-Carbamate Directed Metalation Group in the Synthesis of Aromatic Molecules: An Update. Chem Rev 2024; 124:7731-7828. [PMID: 38864673 PMCID: PMC11212060 DOI: 10.1021/acs.chemrev.3c00923] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2023] [Revised: 04/26/2024] [Accepted: 05/08/2024] [Indexed: 06/13/2024]
Abstract
The aryl O-carbamate (ArOAm) group is among the strongest of the directed metalation groups (DMGs) in directed ortho metalation (DoM) chemistry, especially in the form Ar-OCONEt2. Since the last comprehensive review of metalation chemistry involving ArOAms (published more than 30 years ago), the field has expanded significantly. For example, it now encompasses new substrates, solvent systems, and metalating agents, while conditions have been developed enabling metalation of ArOAm to be conducted in a green and sustainable manner. The ArOAm group has also proven to be effective in the anionic ortho-Fries (AoF) rearrangement, Directed remote metalation (DreM), iterative DoM sequences, and DoM-halogen dance (HalD) synthetic strategies and has been transformed into a diverse range of functionalities and coupled with various groups through a range of cross-coupling (CC) strategies. Of ultimate value, the ArOAm group has demonstrated utility in the synthesis of a diverse range of bioactive and polycyclic aromatic compounds for various applications.
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Affiliation(s)
- Ross D. Jansen-van Vuuren
- Department
of Chemistry, Queen’s University, Chernoff Hall, 9 Bader Lane, Kingston, Ontario K7K 2N1, Canada
- Faculty
of Chemistry and Chemical Technology, University
of Ljubljana, Večna pot 113, 1000 Ljubljana, Slovenia
| | - Susana Liu
- Department
of Chemistry, Queen’s University, Chernoff Hall, 9 Bader Lane, Kingston, Ontario K7K 2N1, Canada
| | - M. A. Jalil Miah
- Department
of Chemistry, Rajshahi University, Rajshahi-6205, Bangladesh
| | - Janez Cerkovnik
- Faculty
of Chemistry and Chemical Technology, University
of Ljubljana, Večna pot 113, 1000 Ljubljana, Slovenia
| | - Janez Košmrlj
- Faculty
of Chemistry and Chemical Technology, University
of Ljubljana, Večna pot 113, 1000 Ljubljana, Slovenia
| | - Victor Snieckus
- Department
of Chemistry, Queen’s University, Chernoff Hall, 9 Bader Lane, Kingston, Ontario K7K 2N1, Canada
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2
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Liang M, Liu C, Ju W, Han S, Zhang J, Zhao Y. Iridium-Catalyzed Ortho-Selective C-H Borylation of Aryl Ketones with Transient Imine Ligands. Org Lett 2024; 26:4224-4228. [PMID: 38726872 DOI: 10.1021/acs.orglett.4c01067] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/25/2024]
Abstract
Ortho-selective C-H borylation of aromatic ketones has not been extensively explored. Herein, we report the iridium-catalyzed ortho-selective C-H borylation of aromatic ketones using in situ-formed imine as the ligand. Good compatibility is observed for various substituted acetophenones and other aromatic ketones, and corresponding products are obtained with medium to excellent yields.
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Affiliation(s)
- Min Liang
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, P. R. China
| | - Chuangchuang Liu
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, P. R. China
| | - Wenjie Ju
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, P. R. China
| | - Shuxiong Han
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, P. R. China
| | - Jingyu Zhang
- College of Energy, Soochow Institute for Energy and Materials Innovations, Soochow University, Suzhou 215006, P. R. China
| | - Yingsheng Zhao
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, P. R. China
- School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang 453000, P. R. China
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3
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De Abreu M, Rogge T, Lanzi M, Saiegh TJ, Houk KN, Wencel-Delord J. Cyclic Diaryl λ 3-Bromanes as a Precursor for Regiodivergent Alkynylation Reactions. Angew Chem Int Ed Engl 2024; 63:e202319960. [PMID: 38375976 DOI: 10.1002/anie.202319960] [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: 12/23/2023] [Revised: 02/10/2024] [Accepted: 02/12/2024] [Indexed: 02/21/2024]
Abstract
Regiodivergent reactions are a fascinating tool to rapidly access molecular diversity while using identical coupling partners. We have developed a new approach for regiodivergent synthesis using the dual character of hypervalent bromines. In addition to the recently reported reactivity of hypervalent bromines as aryne precursors, the first transition metal-catalyzed reaction is reported. Accordingly, the development of these two complementary transformations allows for the alteration of regioselectivity to furnish both ortho- and meta-substituted alkynylation products. Mechanistic and computational studies show how these selectivities are controlled.
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Affiliation(s)
- Maxime De Abreu
- Laboratoire d'Innovation Moléculaire et Applications (UMR CNRS 7042), Université de Strasbourg/Université de Haute Alsace, ECPM 25 rue Becquerel, 67087, Strasbourg, France
| | - Torben Rogge
- Department of Chemistry and Biochemistry, University of California, Los Angeles, California, 90095-1569, USA
| | - Matteo Lanzi
- Laboratoire d'Innovation Moléculaire et Applications (UMR CNRS 7042), Université de Strasbourg/Université de Haute Alsace, ECPM 25 rue Becquerel, 67087, Strasbourg, France
| | - Tomas J Saiegh
- Laboratoire d'Innovation Moléculaire et Applications (UMR CNRS 7042), Université de Strasbourg/Université de Haute Alsace, ECPM 25 rue Becquerel, 67087, Strasbourg, France
| | - Kendall N Houk
- Department of Chemistry and Biochemistry, University of California, Los Angeles, California, 90095-1569, USA
| | - Joanna Wencel-Delord
- Laboratoire d'Innovation Moléculaire et Applications (UMR CNRS 7042), Université de Strasbourg/Université de Haute Alsace, ECPM 25 rue Becquerel, 67087, Strasbourg, France
- Institute of Organic Chemistry, JMU Würzburg, Am Hubland, Würzburg, Germany
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4
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Mao X, Lu Z, Zhang J, Xie Z. Catalyst-Free Regioselective Diborylation of Aryllithium with Tetra(o-tolyl)diborane(4). Angew Chem Int Ed Engl 2024; 63:e202317614. [PMID: 38123525 DOI: 10.1002/anie.202317614] [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: 11/19/2023] [Revised: 12/18/2023] [Accepted: 12/20/2023] [Indexed: 12/23/2023]
Abstract
A catalyst-free 1,2-diborylation of aryllithium with tetra(o-tolyl)diborane(4) has been achieved, giving a series of 1,2-diborylaryl lithium species in excellent yields under mild reaction conditions, which leads to 1,2-di(tolyl)borylarenes in 60-91 % yields upon treatment with the hydride-abstracting reagent. In these transformations, one sp2 C-H of arene is activated and both boryl units are utilized to build two new (sp2 )C-B bonds. This represents a new strategy for selective arene diborylation. Density functional theory (DFT) calculations suggest that an aromatic nucleophilic substitution is a key step in the formation of the products.
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Affiliation(s)
- Xiaofeng Mao
- Department of Chemistry and State Key Laboratory of Synthetic Chemistry, The Chinese University of Hong Kong, Shatin, N. T., Hong Kong, China
| | - Zhenpin Lu
- Department of Chemistry, City University of Hong Kong, Hong Kong, China
| | - Jie Zhang
- Department of Chemistry and State Key Laboratory of Synthetic Chemistry, The Chinese University of Hong Kong, Shatin, N. T., Hong Kong, China
| | - Zuowei Xie
- Department of Chemistry and State Key Laboratory of Synthetic Chemistry, The Chinese University of Hong Kong, Shatin, N. T., Hong Kong, China
- Shenzhen Grubbs Institute and Department of Chemistry, Southern University of Science and Technology, Shenzhen, 518055, China
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5
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Berthold D, van Otterlo WAL. Unprecedented Direct Asymmetric Total Syntheses of 5,8'-Naphthylisoquinoline Alkaloids from their Fully Substituted Precursors Employing a Novel Nickel/N,N-ligand-Catalyzed Atroposelective Cross-Coupling Reaction. Chemistry 2023; 29:e202302070. [PMID: 37515575 DOI: 10.1002/chem.202302070] [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: 06/29/2023] [Revised: 07/27/2023] [Accepted: 07/28/2023] [Indexed: 07/31/2023]
Abstract
A general and concise synthetic pathway for the preparation of four different 5,8'-coupled naphthylisoquinoline alkaloids, employing a specially developed nickel/N,N-ligand-catalyzed atroposelective Negishi coupling is reported. In the first reported direct atroposelective coupling of the fully substituted precursors, the naturally occurring cross-coupled products were generally obtained directly in reasonable yields and high enantiomeric purities. For the synthesis of the cross-coupling precursors, we employed a modification of Bringmann's known approach to the dihydroisoquinoline compounds and a newly developed route for the naphthalene building blocks. For the latter 1,8-dioxynaphthalene precursors, our strategy utilized Hartwig's borylation/methylation approach and included the efficient installation of orthogonal protecting groups.
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Affiliation(s)
- Dino Berthold
- Department of Chemistry and Polymer Science, Stellenbosch University, Private Bag XI, Matieland, 7602, Stellenbosch, Western Cape, South Africa
| | - Willem A L van Otterlo
- Department of Chemistry and Polymer Science, Stellenbosch University, Private Bag XI, Matieland, 7602, Stellenbosch, Western Cape, South Africa
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6
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Al Mamari HH, Borel J, Hickey A, Courtney E, Merz J, Zhang X, Friedrich A, Marder TB, McGlacken GP. Regioselective Iridium-Catalyzed C8-H Borylation of 4-Quinolones via Transient O-Borylated Quinolines. Chemistry 2023; 29:e202301734. [PMID: 37280155 DOI: 10.1002/chem.202301734] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2023] [Revised: 06/04/2023] [Accepted: 06/05/2023] [Indexed: 06/08/2023]
Abstract
The quinolone-quinoline tautomerization is harnessed to effect the regioselective C8-borylation of biologically important 4-quinolones by using [Ir(OMe)(cod)]2 as the catalyst precursor, the silica-supported monodentate phosphine Si-SMAP as the ligand, and B2 pin2 as the boron source. Initially, O-borylation of the quinoline tautomer takes place. Critically, the newly formed 4-(pinBO)-quinolines then undergo N-directed selective Ir-catalyzed borylation at C8. Hydrolysis of the OBpin moiety on workup returns the system to the quinolone tautomer. The C8-borylated quinolines were converted to their corresponding potassium trifluoroborate (BF3 K) salts and to their C8-chlorinated quinolone derivatives. The two-step C-H borylation-chlorination reaction sequence resulted in various C8-Cl quinolones in good yields. Conversion to C8-OH-, C8-NH2 -, and C8-Ar-substituted quinolones was also feasible by using this methodology.
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Affiliation(s)
- Hamad H Al Mamari
- Department of Chemistry, College of Science, Sultan Qaboos University, PO Box 36, Al Khoudh 123, Muscat, Sultanate of Oman
- Institut für Anorganische Chemie and, Institute for Sustainable Chemistry & Catalysis with Boron (ICB), Julius-Maximilians-Universität Würzburg, Am Hubland, 97074, Würzburg, Germany
| | - Julie Borel
- Institut für Anorganische Chemie and, Institute for Sustainable Chemistry & Catalysis with Boron (ICB), Julius-Maximilians-Universität Würzburg, Am Hubland, 97074, Würzburg, Germany
| | - Aobha Hickey
- School of Chemistry & Analytical and, Biological Chemistry Research Facility, University College Cork, T12 YN60, Ireland
| | - Eimear Courtney
- School of Chemistry & Analytical and, Biological Chemistry Research Facility, University College Cork, T12 YN60, Ireland
| | - Julia Merz
- Institut für Anorganische Chemie and, Institute for Sustainable Chemistry & Catalysis with Boron (ICB), Julius-Maximilians-Universität Würzburg, Am Hubland, 97074, Würzburg, Germany
| | - Xiaolei Zhang
- Institut für Anorganische Chemie and, Institute for Sustainable Chemistry & Catalysis with Boron (ICB), Julius-Maximilians-Universität Würzburg, Am Hubland, 97074, Würzburg, Germany
| | - Alexandra Friedrich
- Institut für Anorganische Chemie and, Institute for Sustainable Chemistry & Catalysis with Boron (ICB), Julius-Maximilians-Universität Würzburg, Am Hubland, 97074, Würzburg, Germany
| | - Todd B Marder
- Institut für Anorganische Chemie and, Institute for Sustainable Chemistry & Catalysis with Boron (ICB), Julius-Maximilians-Universität Würzburg, Am Hubland, 97074, Würzburg, Germany
| | - Gerard P McGlacken
- School of Chemistry & Analytical and, Biological Chemistry Research Facility, University College Cork, T12 YN60, Ireland
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7
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Iqbal SA, Millet CRP, Pahl J, Yuan K, Ingleson MJ. Two Directing Groups Used for Metal Catalysed Meta-C-H Functionalisation Only Effect Ortho Electrophilic C-H Borylation. European J Org Chem 2022; 2022:e202200901. [PMID: 36636663 PMCID: PMC9828458 DOI: 10.1002/ejoc.202200901] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2022] [Revised: 10/20/2022] [Indexed: 01/16/2023]
Abstract
Two templates used in meta-directed C-H functionalisation under metal catalysis do not direct meta-C-H borylation under electrophilic borylation conditions. Using BCl3 only Lewis adduct formation with Lewis basic sites in the template is observed. While combining BBr3 and the template containing an amide linker only led to amide directed ortho C-H borylation, with no pyridyl directed meta borylation. The amide directed borylation is selective for the ortho borylation of the aniline derived unit in the template, with no ortho borylation of the phenylacetyl ring - which would also form a six membered boracycle - observed. In the absence of other aromatics amide directed ortho borylation on to phenylacetyl rings can be achieved. The absence of meta-borylation using two templates indicates a higher barrier to pyridyl directed meta borylation relative to amide directed ortho borylation and suggests that bespoke templates for enabling meta-directed electrophilic borylation may be required.
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Affiliation(s)
- Saqib A Iqbal
- EaStCHEM School of Chemistry University of Edinburgh Edinburgh EH9 3FJ UK
| | - Clement R P Millet
- EaStCHEM School of Chemistry University of Edinburgh Edinburgh EH9 3FJ UK
| | - Jürgen Pahl
- EaStCHEM School of Chemistry University of Edinburgh Edinburgh EH9 3FJ UK
| | - Kang Yuan
- EaStCHEM School of Chemistry University of Edinburgh Edinburgh EH9 3FJ UK
| | - Michael J Ingleson
- EaStCHEM School of Chemistry University of Edinburgh Edinburgh EH9 3FJ UK
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8
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Wang Y, Chang W, Qin S, Ang H, Ma J, Lu S, Liang Y. Diversification of Aryl Sulfonyl Compounds through Ligand‐Controlled
meta
‐ and
para
‐C−H Borylation. Angew Chem Int Ed Engl 2022; 61:e202206797. [DOI: 10.1002/anie.202206797] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2022] [Indexed: 01/05/2023]
Affiliation(s)
- Yajun Wang
- State Key Laboratory of Coordination Chemistry Jiangsu Key Laboratory of Advanced Organic Materials Chemistry and Biomedicine Innovation Center School of Chemistry and Chemical Engineering Nanjing University Nanjing 210023 China
| | - Wenju Chang
- State Key Laboratory of Coordination Chemistry Jiangsu Key Laboratory of Advanced Organic Materials Chemistry and Biomedicine Innovation Center School of Chemistry and Chemical Engineering Nanjing University Nanjing 210023 China
| | - Shengmeng Qin
- State Key Laboratory of Coordination Chemistry Jiangsu Key Laboratory of Advanced Organic Materials Chemistry and Biomedicine Innovation Center School of Chemistry and Chemical Engineering Nanjing University Nanjing 210023 China
| | - Han Ang
- State Key Laboratory of Coordination Chemistry Jiangsu Key Laboratory of Advanced Organic Materials Chemistry and Biomedicine Innovation Center School of Chemistry and Chemical Engineering Nanjing University Nanjing 210023 China
| | - Jiawei Ma
- State Key Laboratory of Coordination Chemistry Jiangsu Key Laboratory of Advanced Organic Materials Chemistry and Biomedicine Innovation Center School of Chemistry and Chemical Engineering Nanjing University Nanjing 210023 China
| | - Shuo Lu
- State Key Laboratory of Coordination Chemistry Jiangsu Key Laboratory of Advanced Organic Materials Chemistry and Biomedicine Innovation Center School of Chemistry and Chemical Engineering Nanjing University Nanjing 210023 China
| | - Yong Liang
- State Key Laboratory of Coordination Chemistry Jiangsu Key Laboratory of Advanced Organic Materials Chemistry and Biomedicine Innovation Center School of Chemistry and Chemical Engineering Nanjing University Nanjing 210023 China
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9
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Wang Y, Chang W, Qin S, Ang H, Ma J, Lu S, Liang Y. Diversification of Aryl Sulfonyl Compounds through Ligand Controlled meta‐ and para‐C‐H Borylation. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202206797] [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]
Affiliation(s)
- Yajun Wang
- Nanjing University School of Chemistry and Chemical Engineering CHINA
| | - Wenju Chang
- Nanjing University School of Chemistry and Chemical Engineering CHINA
| | - Shengmeng Qin
- Nanjing University of Chemical Technology: Nanjing Tech University School of Chemistry and Chemical Engineering CHINA
| | - Han Ang
- Nanjing University School of Chemistry and Chemical Engineering CHINA
| | - Jiawei Ma
- Nanjing University School of Chemistry and Chemical Engineering CHINA
| | - Shuo Lu
- Nanjing University School of Chemistry and Chemical Engineering CHINA
| | - Yong Liang
- Nanjing University Chemistry 163 Xianlin Ave 210023 Nanjing CHINA
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10
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Bisht R, Haldar C, Hassan MMM, Hoque ME, Chaturvedi J, Chattopadhyay B. Metal-catalysed C-H bond activation and borylation. Chem Soc Rev 2022; 51:5042-5100. [PMID: 35635434 DOI: 10.1039/d1cs01012c] [Citation(s) in RCA: 72] [Impact Index Per Article: 36.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
Transition metal-catalysed direct borylation of hydrocarbons via C-H bond activation has received a remarkable level of attention as a popular reaction in the synthesis of organoboron compounds owing to their synthetic versatility. While controlling the site-selectivity was one of the most challenging issues in these C-H borylation reactions, enormous efforts of several research groups proved instrumental in dealing with selectivity issues that presently reached an impressive level for both proximal and distal C-H bond borylation reactions. For example, in the case of ortho C-H bond borylation reactions, innovative methodologies have been developed either by the modification of the directing groups attached with the substrates or by creating new catalytic systems via the design of new ligand frameworks. Whereas meta and para selective C-H borylations remained a formidable challenge, numerous innovative concepts have been developed within a very short period of time by the development of new catalytic systems with the employment of various noncovalent interactions. Moreover, significant advancements have occurred for aliphatic C(sp3)-H borylations as well as enantioselective borylations. In this review article, we aim to discuss and summarize the different approaches and findings related to the development of directed proximal ortho, distal meta/para, aliphatic (racemic and enantioselective) borylation reactions since 2014. Additionally, considering the C-H borylation reaction as one of the most important mainstream reactions, various applications of this C-H borylation reaction toward the synthesis of natural products, therapeutics, and applications in materials chemistry will be summarized in the last part of this review article.
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Affiliation(s)
- Ranjana Bisht
- Center of Bio-Medical Research, Division of Molecular Synthesis & Drug Discovery, SGPGIMS Campus, Raebareli Road, Lucknow 226014, Uttar Pradesh, India.
| | - Chabush Haldar
- Center of Bio-Medical Research, Division of Molecular Synthesis & Drug Discovery, SGPGIMS Campus, Raebareli Road, Lucknow 226014, Uttar Pradesh, India.
| | - Mirja Md Mahamudul Hassan
- Center of Bio-Medical Research, Division of Molecular Synthesis & Drug Discovery, SGPGIMS Campus, Raebareli Road, Lucknow 226014, Uttar Pradesh, India.
| | - Md Emdadul Hoque
- Center of Bio-Medical Research, Division of Molecular Synthesis & Drug Discovery, SGPGIMS Campus, Raebareli Road, Lucknow 226014, Uttar Pradesh, India.
| | - Jagriti Chaturvedi
- Center of Bio-Medical Research, Division of Molecular Synthesis & Drug Discovery, SGPGIMS Campus, Raebareli Road, Lucknow 226014, Uttar Pradesh, India.
| | - Buddhadeb Chattopadhyay
- Center of Bio-Medical Research, Division of Molecular Synthesis & Drug Discovery, SGPGIMS Campus, Raebareli Road, Lucknow 226014, Uttar Pradesh, India.
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11
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Mahamudul Hassan MM, Mondal B, Singh S, Haldar C, Chaturvedi J, Bisht R, Sunoj RB, Chattopadhyay B. Ir-Catalyzed Ligand-Free Directed C–H Borylation of Arenes and Pharmaceuticals: Detailed Mechanistic Understanding. J Org Chem 2022; 87:4360-4375. [DOI: 10.1021/acs.joc.2c00046] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Mirja Md Mahamudul Hassan
- Division of Molecular Synthesis & Drug Discovery, Centre of Biomedical Research, SGPGIMS Campus, Raebareli Road, Lucknow 226014, Uttar Pradesh, India
| | - Biplab Mondal
- Division of Molecular Synthesis & Drug Discovery, Centre of Biomedical Research, SGPGIMS Campus, Raebareli Road, Lucknow 226014, Uttar Pradesh, India
| | - Sukriti Singh
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai 400076, India
| | - Chabush Haldar
- Division of Molecular Synthesis & Drug Discovery, Centre of Biomedical Research, SGPGIMS Campus, Raebareli Road, Lucknow 226014, Uttar Pradesh, India
| | - Jagriti Chaturvedi
- Division of Molecular Synthesis & Drug Discovery, Centre of Biomedical Research, SGPGIMS Campus, Raebareli Road, Lucknow 226014, Uttar Pradesh, India
| | - Ranjana Bisht
- Division of Molecular Synthesis & Drug Discovery, Centre of Biomedical Research, SGPGIMS Campus, Raebareli Road, Lucknow 226014, Uttar Pradesh, India
| | - Raghavan B. Sunoj
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai 400076, India
| | - Buddhadeb Chattopadhyay
- Division of Molecular Synthesis & Drug Discovery, Centre of Biomedical Research, SGPGIMS Campus, Raebareli Road, Lucknow 226014, Uttar Pradesh, India
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12
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Chaturvedi J, Haldar C, Bisht R, Pandey G, Chattopadhyay B. Meta Selective C–H Borylation of Sterically Biased and Unbiased Substrates Directed by Electrostatic Interaction. J Am Chem Soc 2021; 143:7604-7611. [DOI: 10.1021/jacs.1c01770] [Citation(s) in RCA: 36] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Jagriti Chaturvedi
- Division of Molecular Synthesis & Drug Discovery, Center of Biomedical Research, SGPGIMS Campus, Raebareli Road, Lucknow 226014, Uttar Pradesh, India
- Department of Applied Chemistry, Babasaheb Bhimrao Ambedkar University, Vidya Vihar, Raebareli Road, Lucknow 226025, Uttar Pradesh, India
| | - Chabush Haldar
- Division of Molecular Synthesis & Drug Discovery, Center of Biomedical Research, SGPGIMS Campus, Raebareli Road, Lucknow 226014, Uttar Pradesh, India
| | - Ranjana Bisht
- Division of Molecular Synthesis & Drug Discovery, Center of Biomedical Research, SGPGIMS Campus, Raebareli Road, Lucknow 226014, Uttar Pradesh, India
| | - Gajanan Pandey
- Department of Applied Chemistry, Babasaheb Bhimrao Ambedkar University, Vidya Vihar, Raebareli Road, Lucknow 226025, Uttar Pradesh, India
| | - Buddhadeb Chattopadhyay
- Division of Molecular Synthesis & Drug Discovery, Center of Biomedical Research, SGPGIMS Campus, Raebareli Road, Lucknow 226014, Uttar Pradesh, India
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13
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Jones CCV, Patel JJ, Jansen-van Vuuren RD, Ross GM, Keller BO, Sauriol F, Schatte G, Johnson ER, Snieckus V. Directed Ortho and Remote Metalation of Naphthalene 1,8-Diamide: Complementing S EAr Reactivity for the Synthesis of Substituted Naphthalenes. Org Lett 2021; 23:1966-1973. [PMID: 33667110 DOI: 10.1021/acs.orglett.1c00521] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Mono- and dianion species of 1,8-naphthalene diamide 2 were generated under sec-BuLi/TMEDA conditions and trapped with a variety of electrophiles to give 2- and 2,7- substituted products 3 and 4. Using Suzuki-Miyaura cross-coupling, mono- and di-iodinated products were converted into the corresponding 2-aryl (5) and 2,7-diaryl (6) products, respectively. The amide-amide rotation barrier of 2 was established by VT NMR, and the structure of fluorenone structure 9, obtained by remote metalation, was secured.
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Affiliation(s)
| | - Jignesh J Patel
- Department of Chemistry, Queen's University, Kingston, ON K7L 3N6, Canada
| | | | - Gregory M Ross
- Northern Ontario School of Medicine, Laurentian University, Sudbury, ON P3E 2C6, Canada
| | | | - Francoise Sauriol
- Department of Chemistry, Queen's University, Kingston, ON K7L 3N6, Canada
| | - Gabriele Schatte
- Department of Chemistry, Queen's University, Kingston, ON K7L 3N6, Canada
| | - Erin R Johnson
- Department of Chemistry, Dalhousie University, Halifax, NS B3H 4R2, Canada
| | - Victor Snieckus
- Department of Chemistry, Queen's University, Kingston, ON K7L 3N6, Canada
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14
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Zhao K, Du Y, Peng Q, Yu WH, Wang BQ, Feng C, Xiang SK. Regiodivergent C-H Arylation of Triphenylene Derivatives Controlled by Electronic Effects of Diaryliodonium Salts. J Org Chem 2021; 86:2986-2997. [PMID: 33481590 DOI: 10.1021/acs.joc.0c02900] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
A regiodivergent C-H arylation of triphenylene derivatives with diaryliodonium salts was developed. The regiodivergence was controlled by electronic effects of diaryliodonium salts. When the aryl(mesityl)iodonium salts bearing strong electron-donating groups at the para-position of aryl groups were used, the arylation reactions occurred ortho to amide groups. However, if the aryl(mesityl)iodonium salts bearing electron-withdrawing groups or weak electron-donating groups at the para-position of aryl groups were utilized, the arylation reactions occurred meta to amide groups.
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Affiliation(s)
- Ke Zhao
- College of Chemistry and Materials Science, Sichuan Normal University, Chengdu 610068, China
| | - Yu Du
- College of Chemistry and Materials Science, Sichuan Normal University, Chengdu 610068, China
| | - Qiong Peng
- College of Chemistry and Materials Science, Sichuan Normal University, Chengdu 610068, China
| | - Wen-Hao Yu
- College of Chemistry and Materials Science, Sichuan Normal University, Chengdu 610068, China
| | - Bi-Qin Wang
- College of Chemistry and Materials Science, Sichuan Normal University, Chengdu 610068, China
| | - Chun Feng
- College of Chemistry and Materials Science, Sichuan Normal University, Chengdu 610068, China
| | - Shi-Kai Xiang
- College of Chemistry and Materials Science, Sichuan Normal University, Chengdu 610068, China
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15
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Kurbah SD, Clovis NS. Supramolecular bimetallic vanadium(V) complex driven by hydrogen bonding and O∙∙∙O chalcogen bonding interaction: Oxidation of cyclohexane and its application toward C H bond activation. Inorganica Chim Acta 2020. [DOI: 10.1016/j.ica.2020.119837] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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16
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Rauch F, Krebs J, Günther J, Friedrich A, Hähnel M, Krummenacher I, Braunschweig H, Finze M, Marder TB. Electronically Driven Regioselective Iridium-Catalyzed C-H Borylation of Donor-π-Acceptor Chromophores Containing Triarylboron Acceptors. Chemistry 2020; 26:10626-10633. [PMID: 32510684 PMCID: PMC7497074 DOI: 10.1002/chem.202002348] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2020] [Revised: 06/05/2020] [Indexed: 12/11/2022]
Abstract
We observed a surprisingly high electronically driven regioselectivity for the iridium-catalyzed C-H borylation of donor-π-acceptor (D-π-A) systems with diphenylamino (1) or carbazolyl (2) moieties as the donor, bis(2,6-bis(trifluoromethyl)phenyl)boryl (B(F Xyl)2 ) as the acceptor, and 1,4-phenylene as the π-bridge. Under our conditions, borylation was observed only at the sterically least encumbered para-positions of the acceptor group. As boronate esters are versatile building blocks for organic synthesis (C-C coupling, functional group transformations) the C-H borylation represents a simple potential method for post-functionalization by which electronic or other properties of D-π-A systems can be fine-tuned for specific applications. The photophysical and electrochemical properties of the borylated (1-(Bpin)2 ) and unborylated (1) diphenylamino-substituted D-π-A systems were investigated. Interestingly, the borylated derivative exhibits coordination of THF to the boronate ester moieties, influencing the photophysical properties and exemplifying the non-innocence of boronate esters.
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Affiliation(s)
- Florian Rauch
- Institut für Anorganische Chemie and Institute, for Sustainable Chemistry & Catalysis with Boron (ICB)Julius-Maximilians-Universität WürzburgAm Hubland97074WürzburgGermany
| | - Johannes Krebs
- Institut für Anorganische Chemie and Institute, for Sustainable Chemistry & Catalysis with Boron (ICB)Julius-Maximilians-Universität WürzburgAm Hubland97074WürzburgGermany
| | - Julian Günther
- Institut für Anorganische Chemie and Institute, for Sustainable Chemistry & Catalysis with Boron (ICB)Julius-Maximilians-Universität WürzburgAm Hubland97074WürzburgGermany
| | - Alexandra Friedrich
- Institut für Anorganische Chemie and Institute, for Sustainable Chemistry & Catalysis with Boron (ICB)Julius-Maximilians-Universität WürzburgAm Hubland97074WürzburgGermany
| | - Martin Hähnel
- Institut für Anorganische Chemie and Institute, for Sustainable Chemistry & Catalysis with Boron (ICB)Julius-Maximilians-Universität WürzburgAm Hubland97074WürzburgGermany
| | - Ivo Krummenacher
- Institut für Anorganische Chemie and Institute, for Sustainable Chemistry & Catalysis with Boron (ICB)Julius-Maximilians-Universität WürzburgAm Hubland97074WürzburgGermany
| | - Holger Braunschweig
- Institut für Anorganische Chemie and Institute, for Sustainable Chemistry & Catalysis with Boron (ICB)Julius-Maximilians-Universität WürzburgAm Hubland97074WürzburgGermany
| | - Maik Finze
- Institut für Anorganische Chemie and Institute, for Sustainable Chemistry & Catalysis with Boron (ICB)Julius-Maximilians-Universität WürzburgAm Hubland97074WürzburgGermany
| | - Todd B. Marder
- Institut für Anorganische Chemie and Institute, for Sustainable Chemistry & Catalysis with Boron (ICB)Julius-Maximilians-Universität WürzburgAm Hubland97074WürzburgGermany
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17
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Prim D, Large B. C–H Functionalization Strategies in the Naphthalene Series: Site Selections and Functional Diversity. SYNTHESIS-STUTTGART 2020. [DOI: 10.1055/s-0040-1707855] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Naphthalene is certainly not a common arene. In contrast to benzene, the bicyclic feature of naphthalene offers multiple differentiable positions and thus a broad diversity of substitution patterns. Naphthalene is a central building block for the construction of elaborated polycyclic architectures with applications in broad domains such as life and materials sciences. As a result, C–H functionalization strategies specially designed for naphthalene substrates have become essential to install valuable substituents on one or both rings towards polysubstituted naphthalenes. This short review provides a focus on uncommon substitution patterns; however, classical ortho C–H activation is not covered.1 Introduction2 C–H Functionalization Using a Directing Group Located at Position 12.1 Functionalization on the Ring Bearing the DG: 1,3-Substitution Pattern2.2 Functionalization on the Ring Bearing the DG: 1,4-Substitution Pattern2.3 Functionalization on the Neighboring Ring: 1,6-, 1,7- and 1,8-Substitution Patterns3 C–H Functionalization Using a Directing Group Located at Position 23.1 Functionalization on the Ring Bearing the DG: 2,4- and 2,1-Substitution Patterns3.2 Miscellaneous Substitution Patterns4 Bis C–H Functionalization4.1 Symmetrical Bisfunctionalization: 1,2,8-Substitution Pattern4.2 Symmetrical Bisfunctionalization: 2,3,1-Substitution Pattern4.2 Unsymmetrical Bisfunctionalization: 2,3,1-Substitution Pattern4.3 Symmetrical Bisfunctionalization: 2,4,8-Substitution Pattern5 Conclusion and Outlook
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Affiliation(s)
- Damien Prim
- Université Paris-Saclay, UVSQ, CNRS, Institut Lavoisier de Versailles
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18
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Yildirim O, Izgu EC, Damle M, Chalei V, Ji F, Sadreyev RI, Szostak JW, Kingston RE. S-phase Enriched Non-coding RNAs Regulate Gene Expression and Cell Cycle Progression. Cell Rep 2020; 31:107629. [PMID: 32402276 PMCID: PMC7954657 DOI: 10.1016/j.celrep.2020.107629] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2019] [Revised: 02/20/2020] [Accepted: 04/20/2020] [Indexed: 12/13/2022] Open
Abstract
Many proteins that are needed for progression through S-phase are produced from transcripts that peak in the S-phase, linking temporal expression of those proteins to the time that they are required in cell cycle. Here, we explore the potential roles of long non-coding RNAs in cell cycle progression. We use a sensitive click-chemistry approach to isolate nascent RNAs in a human cell line, and we identify more than 900 long non-coding RNAs (lncRNAs) whose synthesis peaks during the S-phase. More than 200 of these are long intergenic non-coding RNAs (lincRNAs) with S-phase-specific expression. We characterize three of these lincRNAs by knockdown and find that all three lincRNAs are required for appropriate S-phase progression. We infer that non-coding RNAs are key regulatory effectors during the cell cycle, acting on distinct regulatory networks, and herein, we provide a large catalog of candidate cell-cycle regulatory RNAs.
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Affiliation(s)
- Ozlem Yildirim
- Department of Molecular Biology, Massachusetts General Hospital, Boston, MA 02114, USA; Department of Genetics, Harvard Medical School, Boston, MA 02115, USA
| | - Enver C Izgu
- Department of Molecular Biology, Massachusetts General Hospital, Boston, MA 02114, USA; Department of Genetics, Harvard Medical School, Boston, MA 02115, USA; Department of Chemistry and Chemical Biology, Rutgers University, Piscataway, NJ 08854, USA
| | - Manashree Damle
- Department of Molecular Biology, Massachusetts General Hospital, Boston, MA 02114, USA
| | - Vladislava Chalei
- Department of Molecular Biology, Massachusetts General Hospital, Boston, MA 02114, USA; Department of Genetics, Harvard Medical School, Boston, MA 02115, USA
| | - Fei Ji
- Department of Molecular Biology, Massachusetts General Hospital, Boston, MA 02114, USA; Department of Pathology, Massachusetts General Hospital and Harvard Medical School, Boston, MA 02114, USA
| | - Ruslan I Sadreyev
- Department of Molecular Biology, Massachusetts General Hospital, Boston, MA 02114, USA; Department of Pathology, Massachusetts General Hospital and Harvard Medical School, Boston, MA 02114, USA
| | - Jack W Szostak
- Department of Molecular Biology, Massachusetts General Hospital, Boston, MA 02114, USA; Department of Genetics, Harvard Medical School, Boston, MA 02115, USA; Center for Computational and Integrative Biology, Massachusetts General Hospital, Boston, MA 02114, USA; Howard Hughes Medical Institute, Chevy Chase, MD, USA
| | - Robert E Kingston
- Department of Molecular Biology, Massachusetts General Hospital, Boston, MA 02114, USA; Department of Genetics, Harvard Medical School, Boston, MA 02115, USA.
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19
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Robinson H, Stillibrand J, Simelis K, Macdonald SJF, Nortcliffe A. Iridium-catalysed C–H borylation of β-aryl-aminopropionic acids. Org Biomol Chem 2020. [DOI: 10.1039/d0ob01495h] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Iridium-catalysed C–H borylation of β-aryl-aminopropionic acid derivatives gives 3,5-functionalised protected β-aryl-aminopropionic acid boronates. One-pot borylation–functionalisation provides diverse building blocks for medicinal chemistry.
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Affiliation(s)
- Henry Robinson
- GlaxoSmithKline Carbon Neutral Laboratories for Sustainable Chemistry
- School of Chemistry
- University of Nottingham
- Nottingham
- UK
| | - Joe Stillibrand
- GlaxoSmithKline Carbon Neutral Laboratories for Sustainable Chemistry
- School of Chemistry
- University of Nottingham
- Nottingham
- UK
| | - Klemensas Simelis
- GlaxoSmithKline Carbon Neutral Laboratories for Sustainable Chemistry
- School of Chemistry
- University of Nottingham
- Nottingham
- UK
| | | | - Andrew Nortcliffe
- GlaxoSmithKline Carbon Neutral Laboratories for Sustainable Chemistry
- School of Chemistry
- University of Nottingham
- Nottingham
- UK
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20
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Ren Q, An S, Wang Y, Tong W. Density Functional Theory Study of the Mechanisms of Iron‐Catalyzed Regioselective Anti‐Markovnikov Addition of C‐H Bonds in Aromatic Ketones to Alkenes. Appl Organomet Chem 2019. [DOI: 10.1002/aoc.5183] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Affiliation(s)
- Qinghua Ren
- Department of ChemistryShanghai University 99 Shangda Road Shanghai 200444 China
| | - Shanshan An
- Department of ChemistryShanghai University 99 Shangda Road Shanghai 200444 China
| | - Yuling Wang
- Department of ChemistryShanghai University 99 Shangda Road Shanghai 200444 China
| | - Weiqi Tong
- Department of ChemistryShanghai University 99 Shangda Road Shanghai 200444 China
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21
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Bisht R, Chaturvedi J, Pandey G, Chattopadhyay B. Double-Fold Ortho and Remote C–H Bond Activation/Borylation of BINOL: A Unified Strategy for Arylation of BINOL. Org Lett 2019; 21:6476-6480. [DOI: 10.1021/acs.orglett.9b02347] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Ranjana Bisht
- Center of Bio-Medical Research, Division of Molecular Synthesis & Drug Discovery, SGPGIMS Campus, Raebareli Road, Lucknow 226014, Uttar Pradesh, India
- BBAU, Department of Applied Chemistry, Vidya Vihar, Raebareli Road, Lucknow 226025, Uttar Pradesh, India
| | - Jagriti Chaturvedi
- Center of Bio-Medical Research, Division of Molecular Synthesis & Drug Discovery, SGPGIMS Campus, Raebareli Road, Lucknow 226014, Uttar Pradesh, India
- BBAU, Department of Applied Chemistry, Vidya Vihar, Raebareli Road, Lucknow 226025, Uttar Pradesh, India
| | - Gajanan Pandey
- BBAU, Department of Applied Chemistry, Vidya Vihar, Raebareli Road, Lucknow 226025, Uttar Pradesh, India
| | - Buddhadeb Chattopadhyay
- Center of Bio-Medical Research, Division of Molecular Synthesis & Drug Discovery, SGPGIMS Campus, Raebareli Road, Lucknow 226014, Uttar Pradesh, India
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22
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Bertallo CRDS, Arroio TR, Toledo MFZJ, Sadler SA, Vessecchi R, Steel PG, Clososki GC. C‐H Activation/Metalation Approaches for the Synthesis of Indolizine Derivatives. European J Org Chem 2019. [DOI: 10.1002/ejoc.201900608] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Camila R. d. S. Bertallo
- Núcleo de Pesquisas em Produtos Naturais e Sintéticos Faculdade de Ciências Farmacêuticas de Ribeirão Preto Universidade de São Paulo Av. do Café S/N 14040‐903 Ribeirão Preto ‐ SP Brazil
| | - Thais R. Arroio
- Núcleo de Pesquisas em Produtos Naturais e Sintéticos Faculdade de Ciências Farmacêuticas de Ribeirão Preto Universidade de São Paulo Av. do Café S/N 14040‐903 Ribeirão Preto ‐ SP Brazil
| | - Mônica F. Z. J. Toledo
- Núcleo de Pesquisas em Produtos Naturais e Sintéticos Faculdade de Ciências Farmacêuticas de Ribeirão Preto Universidade de São Paulo Av. do Café S/N 14040‐903 Ribeirão Preto ‐ SP Brazil
| | - Scott A. Sadler
- Department of Chemistry Durham University South Road DH1 3LE Durham UK
| | - Ricardo Vessecchi
- Departamento de Química Faculdade de Filosofia Universidade de São Paulo Av. Bandeirantes 3900 14040‐901 Ribeirão Preto ‐ SP Brazil
| | - Patrick G. Steel
- Department of Chemistry Durham University South Road DH1 3LE Durham UK
| | - Giuliano C. Clososki
- Núcleo de Pesquisas em Produtos Naturais e Sintéticos Faculdade de Ciências Farmacêuticas de Ribeirão Preto Universidade de São Paulo Av. do Café S/N 14040‐903 Ribeirão Preto ‐ SP Brazil
- Departamento de Química Faculdade de Filosofia Universidade de São Paulo Av. Bandeirantes 3900 14040‐901 Ribeirão Preto ‐ SP Brazil
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23
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Yang L, Uemura N, Nakao Y. meta-Selective C–H Borylation of Benzamides and Pyridines by an Iridium–Lewis Acid Bifunctional Catalyst. J Am Chem Soc 2019; 141:7972-7979. [DOI: 10.1021/jacs.9b03138] [Citation(s) in RCA: 90] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Affiliation(s)
- Lichen Yang
- Department of Material Chemistry, Graduate School of Engineering, Kyoto University, Kyoto 615-8510, Japan
| | - Nao Uemura
- Department of Material Chemistry, Graduate School of Engineering, Kyoto University, Kyoto 615-8510, Japan
| | - Yoshiaki Nakao
- Department of Material Chemistry, Graduate School of Engineering, Kyoto University, Kyoto 615-8510, Japan
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24
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Zhong L, Zong ZH, Wang XC. N-heterocyclic carbene enabled rhodium-catalyzed ortho C(sp2)-H borylation at room temperature. Tetrahedron 2019. [DOI: 10.1016/j.tet.2019.03.033] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
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25
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Hein SJ, Edder C, Kowalczyk M, Borzenko A, Mourokh L, Lazarev P. Perylene bisbenzimidazole nonlinear dielectric material for energy storage. RSC Adv 2019; 9:361-364. [PMID: 35521607 PMCID: PMC9059328 DOI: 10.1039/c8ra08873j] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2018] [Accepted: 12/14/2018] [Indexed: 11/29/2022] Open
Abstract
A novel perylene bisbenzimidazole comprising both donor and acceptor functional groups was designed, synthesized, and characterized. This structure exhibits potentially useful physical properties, including a nonlinear dielectric response to an increasing electric field. This material can be used in energy storage devices as the dielectric part of a capacitor. Energy storage devices based on film capacitors are targeting applications in a wide range of industrial, residential and transportation systems. We synthesized and characterized an organic molecule which can serve as a unit for high-density energy storage.![]()
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Affiliation(s)
| | | | - Marta Kowalczyk
- Capacitor Sciences Inc
- Menlo Park
- USA
- Natural Sciences Department
- LaGuardia Community College
| | | | - Lev Mourokh
- Department of Physics
- Queens College of the City University of New York
- Flushing
- USA
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26
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Nájera C, Beletskaya IP, Yus M. Metal-catalyzed regiodivergent organic reactions. Chem Soc Rev 2019; 48:4515-4618. [DOI: 10.1039/c8cs00872h] [Citation(s) in RCA: 127] [Impact Index Per Article: 25.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
This review discusses metal-catalysed regiodivergent additions, allylic substitutions, CH-activation, cross-couplings and intra- or intermolecular cyclisations.
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Affiliation(s)
- Carmen Nájera
- Centro de Innovación en Química Avanzada (ORFEO-CINQA)
- Universidad de Alicante
- E-03080 Alicante
- Spain
| | - Irina P. Beletskaya
- Chemistry Department
- M. V. Lomonosov Moscow State University
- 119992 Moscow
- Russia
| | - Miguel Yus
- Centro de Innovación en Química Avanzada (ORFEO-CINQA)
- Universidad de Alicante
- E-03080 Alicante
- Spain
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27
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St-Jean F, Piechowicz KA, Sirois LE, Angelaud R, Gosselin F. Study of a Competing Hydrodefluorination Reaction During the Directed ortho-Lithiation/Borylation of 2-Fluorobenzaldehyde. Organometallics 2018. [DOI: 10.1021/acs.organomet.8b00730] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Frédéric St-Jean
- Department of Small Molecule Process Chemistry, Genentech, Inc., 1 DNA Way, South San Francisco, California 94080, United States
| | - Katarzyna A. Piechowicz
- Department of Small Molecule Process Chemistry, Genentech, Inc., 1 DNA Way, South San Francisco, California 94080, United States
| | - Lauren E. Sirois
- Department of Small Molecule Process Chemistry, Genentech, Inc., 1 DNA Way, South San Francisco, California 94080, United States
| | - Rémy Angelaud
- Department of Small Molecule Process Chemistry, Genentech, Inc., 1 DNA Way, South San Francisco, California 94080, United States
| | - Francis Gosselin
- Department of Small Molecule Process Chemistry, Genentech, Inc., 1 DNA Way, South San Francisco, California 94080, United States
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28
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Yang Y, Gao Q, Xu S. Ligand-Free Iridium-Catalyzed Dehydrogenative ortho
C−H Borylation of Benzyl-2-Pyridines at Room Temperature. Adv Synth Catal 2018. [DOI: 10.1002/adsc.201801292] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Yuhuan Yang
- State Key Laboratory for Oxo Synthesis and Selective Oxidation, Center for Excellence in Molecular Synthesis, Suzhou Research Institute, Lanzhou Institute of Chemical Physics; Chinese Academy of Sciences; Lanzhou 730000 People's Republic of China
| | - Qian Gao
- State Key Laboratory for Oxo Synthesis and Selective Oxidation, Center for Excellence in Molecular Synthesis, Suzhou Research Institute, Lanzhou Institute of Chemical Physics; Chinese Academy of Sciences; Lanzhou 730000 People's Republic of China
| | - Senmiao Xu
- State Key Laboratory for Oxo Synthesis and Selective Oxidation, Center for Excellence in Molecular Synthesis, Suzhou Research Institute, Lanzhou Institute of Chemical Physics; Chinese Academy of Sciences; Lanzhou 730000 People's Republic of China
- Key Laboratory of Organosilicon Chemistry and Material Technology of Ministry of Education; Hangzhou Normal University; Hangzhou 311121 People's Republic of China
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29
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The role of Si in Ir(SiNN) catalyst and chemoselectivity of dehydrogenative borylation over hydroborylation: A theoretical study. J Organomet Chem 2018. [DOI: 10.1016/j.jorganchem.2018.09.006] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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30
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Amide Effects in C−H Activation: Noncovalent Interactions with L-Shaped Ligand for meta
Borylation of Aromatic Amides. Angew Chem Int Ed Engl 2018; 57:15762-15766. [DOI: 10.1002/anie.201809929] [Citation(s) in RCA: 95] [Impact Index Per Article: 15.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2018] [Indexed: 11/07/2022]
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31
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Bisht R, Hoque ME, Chattopadhyay B. Amide Effects in C−H Activation: Noncovalent Interactions with L-Shaped Ligand for meta
Borylation of Aromatic Amides. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201809929] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Ranjana Bisht
- Division of Molecular Synthesis & Drug Discovery, Centre of Bio-Medical Research (CBMR); SGPGIMS Campus; Raebareli Road Lucknow 226014 U.P. India
| | - Md Emdadul Hoque
- Division of Molecular Synthesis & Drug Discovery, Centre of Bio-Medical Research (CBMR); SGPGIMS Campus; Raebareli Road Lucknow 226014 U.P. India
| | - Buddhadeb Chattopadhyay
- Division of Molecular Synthesis & Drug Discovery, Centre of Bio-Medical Research (CBMR); SGPGIMS Campus; Raebareli Road Lucknow 226014 U.P. India
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32
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Smith MR, Bisht R, Haldar C, Pandey G, Dannatt JE, Ghaffari B, Maleczka RE, Chattopadhyay B. Achieving High Ortho Selectivity in Aniline C-H Borylations by Modifying Boron Substituents. ACS Catal 2018; 8:6216-6223. [PMID: 30147990 DOI: 10.1021/acscatal.8b00641] [Citation(s) in RCA: 44] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
High ortho selectivity for Ir-catalyzed C-H borylations (CHBs) of anilines results when B2eg2 (eg = ethylene glycolate) is used as the borylating reagent in lieu of B2pin2, which is known to give isomeric mixtures with anilines lacking a blocking group at the 4-position. With this modification, high selectivities and good yields are now possible for various anilines, including those with groups at the 2- and 3-positions. Experiments indicate that ArylN(H)Beg species are generated prior to CHB and support the improved ortho selectivity relative to B2pin2 reactions arising from smaller Beg ligands on the Ir catalyst. The lowest-energy transition states (TSs) from density functional theory computational analyses have N-H···O hydrogen-bonding interactions between PhN(H)Beg and O atoms in Beg ligands. Ir-catalyzed CHB of PhN(H)Me with B2eg2 is also highly ortho-selective. 1H NMR experiments show that N-borylation fully generates PhN(Me)Beg prior to CHB. The TS with the lowest Gibbs energy was the ortho TS, in which the Beg unit is oriented anti to the bipyridine ligand.
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Affiliation(s)
- Milton R. Smith
- Department of Chemistry, Michigan State University, 578 South Shaw Lane, East Lansing, Michigan 48824-1322, United States
| | - Ranjana Bisht
- Division of Molecular Synthesis & Drug Discovery, Centre of Bio-Medical Research (CBMR), SGPGIMS Campus, Raebareli Road, Lucknow 226 014, UP, India
- Department of Applied Chemistry, Babasaheb Bhimrao Ambedkar University, Lucknow 226 025, UP, India
| | - Chabush Haldar
- Division of Molecular Synthesis & Drug Discovery, Centre of Bio-Medical Research (CBMR), SGPGIMS Campus, Raebareli Road, Lucknow 226 014, UP, India
| | - Gajanan Pandey
- Department of Applied Chemistry, Babasaheb Bhimrao Ambedkar University, Lucknow 226 025, UP, India
| | - Jonathan E. Dannatt
- Department of Chemistry, Michigan State University, 578 South Shaw Lane, East Lansing, Michigan 48824-1322, United States
| | - Behnaz Ghaffari
- Department of Chemistry, Michigan State University, 578 South Shaw Lane, East Lansing, Michigan 48824-1322, United States
| | - Robert E. Maleczka
- Department of Chemistry, Michigan State University, 578 South Shaw Lane, East Lansing, Michigan 48824-1322, United States
| | - Buddhadeb Chattopadhyay
- Division of Molecular Synthesis & Drug Discovery, Centre of Bio-Medical Research (CBMR), SGPGIMS Campus, Raebareli Road, Lucknow 226 014, UP, India
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33
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Haldar C, Emdadul Hoque M, Bisht R, Chattopadhyay B. Concept of Ir-catalyzed C H bond activation/borylation by noncovalent interaction. Tetrahedron Lett 2018. [DOI: 10.1016/j.tetlet.2018.01.098] [Citation(s) in RCA: 67] [Impact Index Per Article: 11.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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34
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Xu SD, Sun FZ, Deng WH, Hao H, Duan XH. One-step highly selective borylation/Suzuki cross-coupling of two distinct aryl bromides in pure water. NEW J CHEM 2018. [DOI: 10.1039/c8nj02184h] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Abstract
A one-step borylation/Suzuki cross-coupling of two distinct aryl bromides by Na2PdCl4 catalysis mediated by B2(OH)4 was developed in pure water, allowing the synthesis of various biaryls and heterobiaryls.
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Affiliation(s)
- Shan Dong Xu
- College of Science, Beijing Forestry University
- Beijing 100083
- China
| | - Fang Zhou Sun
- College of Materials Science and Technology, Beijing Forestry University
- Beijing 100083
- China
| | - Wei Hang Deng
- College of Materials Science and Technology, Beijing Forestry University
- Beijing 100083
- China
| | - Han Hao
- College of Materials Science and Technology, Beijing Forestry University
- Beijing 100083
- China
| | - Xin Hong Duan
- College of Science, Beijing Forestry University
- Beijing 100083
- China
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35
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Miah MAJ, Sibi MP, Chattopadhyay S, Familoni OB, Snieckus V. Directed ortho
-Metalation of O
-Aryl N
,N
-Dialkylcarbamates: Methodology, Anionic ortho
-Fries Rearrangement, and Lateral Metalation. European J Org Chem 2017. [DOI: 10.1002/ejoc.201701142] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- M. A. Jalil Miah
- Department of Chemistry; Rajshahi University; 6205 Rajshahi Bangladesh
| | - Mukund P. Sibi
- Department of Chemistry; North Dakota State University; 5516 Fargo ND 58105- USA
| | - S. Chattopadhyay
- Department of Chemistry; Jadavpur University; 700032 Kolkata India
| | | | - Victor Snieckus
- Department of Chemistry; Queen's University; K7L 3N6 Kingston ON Canada
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36
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Abstract
Azines, which are six-membered aromatic compounds containing one or more nitrogen atoms, serve as ubiquitous structural cores of aromatic species with important applications in biological and materials sciences. Among a variety of synthetic approaches toward azines, C-H functionalization represents the most rapid and atom-economical transformation, and it is advantageous for the late-stage functionalization of azine-containing functional molecules. Since azines have several C-H bonds with different reactivities, the development of new reactions that allow for the functionalization of azines in a regioselective fashion has comprised a central issue. This review describes recent advances in the C-H functionalization of azines categorized as follows: (1) SNAr reactions, (2) radical reactions, (3) deprotonation/functionalization, and (4) metal-catalyzed reactions.
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Affiliation(s)
- Kei Murakami
- Institute of Transformative Bio-Molecules (WPI-ITbM) and Graduate School of Science, and ‡JST-ERATO, Itami Molecular Nanocarbon Project, Nagoya University , Chikusa, Nagoya 464-8602, Japan
| | - Shuya Yamada
- Institute of Transformative Bio-Molecules (WPI-ITbM) and Graduate School of Science, and ‡JST-ERATO, Itami Molecular Nanocarbon Project, Nagoya University , Chikusa, Nagoya 464-8602, Japan
| | - Takeshi Kaneda
- Institute of Transformative Bio-Molecules (WPI-ITbM) and Graduate School of Science, and ‡JST-ERATO, Itami Molecular Nanocarbon Project, Nagoya University , Chikusa, Nagoya 464-8602, Japan
| | - Kenichiro Itami
- Institute of Transformative Bio-Molecules (WPI-ITbM) and Graduate School of Science, and ‡JST-ERATO, Itami Molecular Nanocarbon Project, Nagoya University , Chikusa, Nagoya 464-8602, Japan
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37
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Xu HJ, Lu Y, Farmer ME, Wang HW, Zhao D, Kang YS, Sun WY, Yu JQ. Rh(III)-Catalyzed meta-C-H Olefination Directed by a Nitrile Template. J Am Chem Soc 2017; 139:2200-2203. [PMID: 28128942 DOI: 10.1021/jacs.6b13269] [Citation(s) in RCA: 110] [Impact Index Per Article: 15.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
A range of Rh(III)-catalyzed ortho-C-H functionalizations have been developed; however, extension of this reactivity to remote C-H functionalizations through large-ring rhodacyclic intermediates has yet to be demonstrated. Herein we report the first example of the use of a U-shaped nitrile template to direct Rh(III)-catalyzed remote meta-C-H activation via a postulated 12-membered macrocyclic intermediate. Because the ligands used for Rh(III) catalysts are significantly different from those of Pd(II) catalysts, this offers new opportunities for future development of ligand-promoted meta-C-H activation reactions.
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Affiliation(s)
- Hua-Jin Xu
- Coordination Chemistry Institute, State Key Laboratory of Coordination Chemistry, School of Chemistry and Chemical Engineering, Nanjing National Laboratory of Microstructures, Collaborative Innovation Center of Advanced Microstructures, Nanjing University , Nanjing 210023, China
| | - Yi Lu
- Coordination Chemistry Institute, State Key Laboratory of Coordination Chemistry, School of Chemistry and Chemical Engineering, Nanjing National Laboratory of Microstructures, Collaborative Innovation Center of Advanced Microstructures, Nanjing University , Nanjing 210023, China
| | - Marcus E Farmer
- Department of Chemistry, The Scripps Research Institute , 10550 North Torrey Pines Road, La Jolla, California 92037, United States
| | - Huai-Wei Wang
- Coordination Chemistry Institute, State Key Laboratory of Coordination Chemistry, School of Chemistry and Chemical Engineering, Nanjing National Laboratory of Microstructures, Collaborative Innovation Center of Advanced Microstructures, Nanjing University , Nanjing 210023, China
| | - Dan Zhao
- Coordination Chemistry Institute, State Key Laboratory of Coordination Chemistry, School of Chemistry and Chemical Engineering, Nanjing National Laboratory of Microstructures, Collaborative Innovation Center of Advanced Microstructures, Nanjing University , Nanjing 210023, China
| | - Yan-Shang Kang
- Coordination Chemistry Institute, State Key Laboratory of Coordination Chemistry, School of Chemistry and Chemical Engineering, Nanjing National Laboratory of Microstructures, Collaborative Innovation Center of Advanced Microstructures, Nanjing University , Nanjing 210023, China
| | - Wei-Yin Sun
- Coordination Chemistry Institute, State Key Laboratory of Coordination Chemistry, School of Chemistry and Chemical Engineering, Nanjing National Laboratory of Microstructures, Collaborative Innovation Center of Advanced Microstructures, Nanjing University , Nanjing 210023, China
| | - Jin-Quan Yu
- Department of Chemistry, The Scripps Research Institute , 10550 North Torrey Pines Road, La Jolla, California 92037, United States
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38
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Ping L, Chung DS, Bouffard J, Lee SG. Transition metal-catalyzed site- and regio-divergent C–H bond functionalization. Chem Soc Rev 2017; 46:4299-4328. [DOI: 10.1039/c7cs00064b] [Citation(s) in RCA: 354] [Impact Index Per Article: 50.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
The regioselectivity of C–H functionalization reactions can be redirected to obtain regioisomeric products form the same starting materials.
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Affiliation(s)
- Lucy Ping
- Department of Chemistry and Nano Science (BK 21 Plus)
- Ewha Womans University
- 03760 Seoul
- Korea
| | - Da Sol Chung
- Department of Chemistry and Nano Science (BK 21 Plus)
- Ewha Womans University
- 03760 Seoul
- Korea
| | - Jean Bouffard
- Department of Chemistry and Nano Science (BK 21 Plus)
- Ewha Womans University
- 03760 Seoul
- Korea
| | - Sang-gi Lee
- Department of Chemistry and Nano Science (BK 21 Plus)
- Ewha Womans University
- 03760 Seoul
- Korea
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39
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Jover J, Maseras F. Mechanistic Investigation of Iridium-Catalyzed C–H Borylation of Methyl Benzoate: Ligand Effects in Regioselectivity and Activity. Organometallics 2016. [DOI: 10.1021/acs.organomet.6b00562] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Jesús Jover
- Departament
de Química Inorgànica i Orgànica, Secció
de Química Inorgànica, Universitat de Barcelona, Martí
i Franquès 1-11, 08028 Barcelona, Spain
- Institute
of Chemical Research of Catalonia (ICIQ), The Barcelona Institute of Science and Technology, Avgda. Països Catalans, 16, 43007 Tarragona, Spain
| | - Feliu Maseras
- Institute
of Chemical Research of Catalonia (ICIQ), The Barcelona Institute of Science and Technology, Avgda. Països Catalans, 16, 43007 Tarragona, Spain
- Departament
de Química, Universitat Autònoma de Barcelona, 08193 Bellaterra, Catalonia, Spain
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40
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Bisht R, Chattopadhyay B. Formal Ir-Catalyzed Ligand-Enabled Ortho and Meta Borylation of Aromatic Aldehydes via in Situ-Generated Imines. J Am Chem Soc 2015; 138:84-7. [DOI: 10.1021/jacs.5b11683] [Citation(s) in RCA: 185] [Impact Index Per Article: 20.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Ranjana Bisht
- Center of Bio-Medical Research, Division of Molecular Synthesis & Drug Discovery, Sanjay Gandhi Post Graduate Institute of Medical Sciences, Raebareli Road, Lucknow, Uttar Pradesh 226014, India
| | - Buddhadeb Chattopadhyay
- Center of Bio-Medical Research, Division of Molecular Synthesis & Drug Discovery, Sanjay Gandhi Post Graduate Institute of Medical Sciences, Raebareli Road, Lucknow, Uttar Pradesh 226014, India
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41
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Stephens DE, Larionov OV. Recent Advances in the C-H-Functionalization of the Distal Positions in Pyridines and Quinolines. Tetrahedron 2015; 71:8683-8716. [PMID: 26640303 PMCID: PMC4666591 DOI: 10.1016/j.tet.2015.08.034] [Citation(s) in RCA: 121] [Impact Index Per Article: 13.4] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
This review summarizes recent developments in the C-H-functionalization of the distal positions of pyridines, quinolines and related azaheterocycles. While the functionalization of the C2 position has been known for a long time and is facilitated by the proximity to N1, regioselective reactions in the distal positions are more difficult to achieve and have only emerged in the last decade. Recent advances in the transition metal-catalyzed distal C-H-functionalization of these synthetically-important azaheterocycles are discussed in detail, with the focus on the scope, site-selectivity and mechanistic aspects of the reactions.
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Affiliation(s)
- David E. Stephens
- Department of Chemistry, The University of Texas at San Antonio, San Antonio, Texas, 78249, United States
| | - Oleg. V. Larionov
- Department of Chemistry, The University of Texas at San Antonio, San Antonio, Texas, 78249, United States
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42
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Demory E, Devaraj K, Orthaber A, Gates PJ, Pilarski LT. Boryl (Hetero)aryne Precursors as Versatile Arylation Reagents: Synthesis through C-H Activation and Orthogonal Reactivity. Angew Chem Int Ed Engl 2015; 54:11765-9. [PMID: 26270451 PMCID: PMC4600243 DOI: 10.1002/anie.201503152] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2015] [Revised: 07/11/2015] [Indexed: 11/25/2022]
Abstract
(Pinacolato)boryl ortho-silyl(hetero)aryl triflates are presented as a new class of building blocks for arylation. They demonstrate unique versatility by delivering boronate or (hetero)aryne reactivity chemoselectively in a broad range of transformations. This approach enables the unprecedented postfunctionalization of fluoride-activated (hetero)aryne precursors, for example, as substrates in transition-metal catalysis, and offers valuable new possibilities for aryl boronate postfunctionalization without the use of specialized protecting groups.
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Affiliation(s)
- Emilien Demory
- Department of Chemistry-BMC, Uppsala University, Box 576, 75-123 Uppsala (Sweden) http://www.pilarskigroup.org
| | - Karthik Devaraj
- Department of Chemistry-BMC, Uppsala University, Box 576, 75-123 Uppsala (Sweden) http://www.pilarskigroup.org
| | - Andreas Orthaber
- Department of Chemistry-Ångström Laboratories, Uppsala University, Box 523, 75-120 Uppsala (Sweden)
| | - Paul J Gates
- School of Chemistry, University of Bristol, Cantock's Close, Clifton, Bristol, BS8 1TS (UK)
| | - Lukasz T Pilarski
- Department of Chemistry-BMC, Uppsala University, Box 576, 75-123 Uppsala (Sweden) http://www.pilarskigroup.org.
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43
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Kuninobu Y, Ida H, Nishi M, Kanai M. A meta-selective C–H borylation directed by a secondary interaction between ligand and substrate. Nat Chem 2015; 7:712-7. [DOI: 10.1038/nchem.2322] [Citation(s) in RCA: 375] [Impact Index Per Article: 41.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2015] [Accepted: 07/08/2015] [Indexed: 12/23/2022]
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44
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Demory E, Devaraj K, Orthaber A, Gates PJ, Pilarski LT. Boryl (Hetero)aryne Precursors as Versatile Arylation Reagents: Synthesis through CH Activation and Orthogonal Reactivity. Angew Chem Int Ed Engl 2015. [DOI: 10.1002/ange.201503152] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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45
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Sasaki I, Taguchi J, Hiraki S, Ito H, Ishiyama T. Catalyst-controlled regiodivergent C-H borylation of multifunctionalized heteroarenes by using iridium complexes. Chemistry 2015; 21:9236-41. [PMID: 25966001 DOI: 10.1002/chem.201500658] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2015] [Indexed: 12/25/2022]
Abstract
The regiodivergent C-H borylation of 2,5-disubstituted heteroarenes with bis(pinacolato)diboron was achieved by using iridium catalysts formed in situ from [Ir(OMe)(cod)]2 /dtbpy (cod=1,5-cyclooctadiene, dtbpy: 4,4'-di-tert-butyl-2,2'-bipyridine) or [Ir(OMe)(cod)]2 /2 AsPh3 . When [Ir(OMe)(cod)]2 /dtbpy was used as the catalyst, borylation at the 4-position proceeded selectively to afford 4-borylated products in high yields (dtbpy system A). The regioselectivity changed when the [Ir(OMe)(cod)]2 /2 AsPh3 catalyst was used; 3-borylated products were obtained in high yields with high regioselectivity (AsPh3 system B). The regioselectivity of borylation was easily controlled by changing the ligands. This reaction was used in the syntheses of two different bioactive compound analogues by using the same starting material.
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Affiliation(s)
- Ikuo Sasaki
- Division of Chemical Process Engineering and Frontier Chemistry Center (FCC), Graduate School of Engineering, Hokkaido University, Kita 13 Nishi 8 Kita-ku, Sapporo, Hokkaido 060-8628 (Japan), Fax: (+81) 117066562
| | - Jumpei Taguchi
- Division of Chemical Process Engineering and Frontier Chemistry Center (FCC), Graduate School of Engineering, Hokkaido University, Kita 13 Nishi 8 Kita-ku, Sapporo, Hokkaido 060-8628 (Japan), Fax: (+81) 117066562
| | - Shotaro Hiraki
- Division of Chemical Process Engineering and Frontier Chemistry Center (FCC), Graduate School of Engineering, Hokkaido University, Kita 13 Nishi 8 Kita-ku, Sapporo, Hokkaido 060-8628 (Japan), Fax: (+81) 117066562
| | - Hajime Ito
- Division of Chemical Process Engineering and Frontier Chemistry Center (FCC), Graduate School of Engineering, Hokkaido University, Kita 13 Nishi 8 Kita-ku, Sapporo, Hokkaido 060-8628 (Japan), Fax: (+81) 117066562.
| | - Tatsuo Ishiyama
- Division of Chemical Process Engineering and Frontier Chemistry Center (FCC), Graduate School of Engineering, Hokkaido University, Kita 13 Nishi 8 Kita-ku, Sapporo, Hokkaido 060-8628 (Japan), Fax: (+81) 117066562.
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46
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Keske EC, Moore BD, Zenkina OV, Wang R, Schatte G, Crudden CM. Highly selective directed arylation reactions via back-to-back dehydrogenative C-H borylation/arylation reactions. Chem Commun (Camb) 2015; 50:9883-6. [PMID: 25025984 DOI: 10.1039/c4cc02499k] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
Dimeric rhodium N-heterocyclic carbene complexes are demonstrated to be effective catalyst precursors for directed C-H borylation reactions at room temperature. The reactions are highly selective for mono-borylation and can be combined with a one-pot Suzuki-Miyaura coupling to give C-H arylation products with exclusive selectivity for mono-arylation without the requirement for steric blocking groups.
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Affiliation(s)
- Eric C Keske
- Department of Chemistry, Queen's University, Chernoff Hall, 90 Bader Lane, Kingston, CanadaK7L 3N6.
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47
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Sadler SA, Hones AC, Roberts B, Blakemore D, Marder TB, Steel PG. Multidirectional Synthesis of Substituted Indazoles via Iridium-Catalyzed C–H Borylation. J Org Chem 2015; 80:5308-14. [DOI: 10.1021/acs.joc.5b00452] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Scott A. Sadler
- Department
of Chemistry, Durham University, South Road, Durham DH1 3LE, U.K
| | - Andrew C. Hones
- Department
of Chemistry, Durham University, South Road, Durham DH1 3LE, U.K
| | - Bryan Roberts
- Astra Zeneca, Alderley Park, Macclesfield SK10 4TF, U.K
| | - David Blakemore
- Pfizer-Neusentis, The Portway Building, Granta Park, Cambridge, CB21 6GS, U.K
| | - Todd B. Marder
- Department
of Chemistry, Durham University, South Road, Durham DH1 3LE, U.K
- Institut für Anorganische Chemie, Julius-Maximilians-Universität Würzburg, Am Hubland, 97074 Würzburg, Germany
| | - Patrick G. Steel
- Department
of Chemistry, Durham University, South Road, Durham DH1 3LE, U.K
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48
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Chen Y, Peng H, Pi YX, Meng T, Lian ZY, Yan MQ, Liu Y, Liu SH, Yu GA. Efficient phosphine ligands for the one-pot palladium-catalyzed borylation/Suzuki–Miyaura cross-coupling reaction. Org Biomol Chem 2015; 13:3236-42. [DOI: 10.1039/c4ob02436b] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
An air-stable 2-(anthracen-9-yl)-1H-inden-3-yl dicyclohexylphosphine was used in palladium-catalyzed borylation/Suzuki–Miyaura cross-coupling reaction.
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Affiliation(s)
- You Chen
- Key Laboratory of Pesticide & Chemical Biology
- Ministry of Education
- College of Chemistry
- Central China Normal University
- Wuhan 430079
| | - Hui Peng
- Department of Chemistry
- State Key Laboratory of Elemento-Organic Chemistry
- Nankai University
- Tianjin 300071
- People's Republic of China
| | - Yun-Xiao Pi
- State Key Laboratory of Catalysis
- Dalian Institute of Chemical Physics
- Chinese Academy of Sciences
- Dalian 116023
- People's Republic of China
| | - Tong Meng
- Key Laboratory of Pesticide & Chemical Biology
- Ministry of Education
- College of Chemistry
- Central China Normal University
- Wuhan 430079
| | - Ze-Yu Lian
- Key Laboratory of Pesticide & Chemical Biology
- Ministry of Education
- College of Chemistry
- Central China Normal University
- Wuhan 430079
| | - Meng-Qi Yan
- Key Laboratory of Pesticide & Chemical Biology
- Ministry of Education
- College of Chemistry
- Central China Normal University
- Wuhan 430079
| | - Yan Liu
- Key Laboratory of Pesticide & Chemical Biology
- Ministry of Education
- College of Chemistry
- Central China Normal University
- Wuhan 430079
| | - Sheng-Hua Liu
- Key Laboratory of Pesticide & Chemical Biology
- Ministry of Education
- College of Chemistry
- Central China Normal University
- Wuhan 430079
| | - Guang-Ao Yu
- Key Laboratory of Pesticide & Chemical Biology
- Ministry of Education
- College of Chemistry
- Central China Normal University
- Wuhan 430079
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49
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Overcoming the limitations of directed C-H functionalizations of heterocycles. Nature 2014; 515:389-93. [PMID: 25383516 PMCID: PMC4248606 DOI: 10.1038/nature13885] [Citation(s) in RCA: 248] [Impact Index Per Article: 24.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2014] [Accepted: 09/16/2014] [Indexed: 12/24/2022]
Abstract
In directed C–H activation reactions, nitrogen and sulfur atoms present in heterocyclic substrates coordinate strongly with metal catalysts. This coordination, which can lead to catalyst poisoning or C–H functionalization at an undesired position, limits the application of C–H activation reactions in heterocycle-based drug discovery.1–5 Herein, we report a robust and synthetically useful reaction that overcomes the complications associated with performing C–H functionalization reactions on heterocycles. Our approach employs a simple N-methoxy amide group, which serves as both a directing group and an anionic ligand to promote the in situ generation of the reactive PdX2 (X = ArCONOMe) species from a Pd(0) source using air as the sole oxidant. In this way, the PdX2 species is inherently anchored in close proximity with the target C–H bond adjacent to CONHOMe group, thus avoiding the interference from various heterocycles. Remarkably, this reaction overrides the conventional positional selectivity patterns observed with substrates containing strongly coordinating heteroatoms, including nitrogen, sulfur, and phosphorus. Thus, this operationally simple aerobic reaction demonstrates the feasibility of bypassing a fundamental limitation that has long plagued applications of directed C–H activation in medicinal chemistry.
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50
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Ghaffari B, Preshlock SM, Plattner DL, Staples R, Maligres PE, Krska SW, Maleczka RE, Smith MR. Silyl phosphorus and nitrogen donor chelates for homogeneous ortho borylation catalysis. J Am Chem Soc 2014; 136:14345-8. [PMID: 25141136 PMCID: PMC4210111 DOI: 10.1021/ja506229s] [Citation(s) in RCA: 131] [Impact Index Per Article: 13.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2014] [Indexed: 12/17/2022]
Abstract
Ir catalysts supported by bidentate silyl ligands that contain P- or N-donors are shown to effect ortho borylations for a range of substituted aromatics. The substrate scope is broad, and the modular ligand synthesis allows for flexible catalyst design.
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Affiliation(s)
- Behnaz Ghaffari
- Department
of Chemistry, Michigan State University, East Lansing, Michigan 48824-1322, United States
| | - Sean M. Preshlock
- Department
of Chemistry, Michigan State University, East Lansing, Michigan 48824-1322, United States
| | - Donald L. Plattner
- Department
of Chemistry, Michigan State University, East Lansing, Michigan 48824-1322, United States
| | - Richard
J. Staples
- Department
of Chemistry, Michigan State University, East Lansing, Michigan 48824-1322, United States
| | - Peter E. Maligres
- Department of Process Chemistry, Merck Research Laboratories, Rahway, New Jersey 07065, United States
| | - Shane W. Krska
- Department of Process Chemistry, Merck Research Laboratories, Rahway, New Jersey 07065, United States
| | - Robert E. Maleczka
- Department
of Chemistry, Michigan State University, East Lansing, Michigan 48824-1322, United States
| | - Milton R. Smith
- Department
of Chemistry, Michigan State University, East Lansing, Michigan 48824-1322, United States
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