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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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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3
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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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4
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Mao S, Yuan B, Wang X, Zhao Y, Wang L, Yang XY, Chen YM, Zhang SQ, Li P. Triazene as the Directing Group Achieving Highly Ortho-Selective Diborylation and Sequential Functionalization. Org Lett 2022; 24:3594-3598. [PMID: 35549279 DOI: 10.1021/acs.orglett.2c00994] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
This study describes a regioselective ortho,ortho'-diborylation of aromatic triazenes catalyzed by [Ir(OMe)(cod)]2 in near-quantitative yields without an additional ligand. Aromatic triazenes act as both substrates and ligands. The X-ray structures of 2a and 2p indicate that the monoborylation products could promote the occurrence of diborylation. The synthesized triazene-substituted diboronate esters could undergo a variety of transformations including directing group removal. One-pot sequential modification provides a short entry to densely functionalized arenes.
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Affiliation(s)
- Shuai Mao
- Department of Medicinal Chemistry, School of Pharmacy, Xi'an Jiaotong University, Xi'an, Shaanxi 710061, PR China
| | - Bo Yuan
- Department of Medicinal Chemistry, School of Pharmacy, Xi'an Jiaotong University, Xi'an, Shaanxi 710061, PR China
| | - Xinyu Wang
- Department of Medicinal Chemistry, School of Pharmacy, Xi'an Jiaotong University, Xi'an, Shaanxi 710061, PR China
| | - Yahao Zhao
- Department of Medicinal Chemistry, School of Pharmacy, Xi'an Jiaotong University, Xi'an, Shaanxi 710061, PR China
| | - Lu Wang
- College of Pharmacy, University of Michigan, NCRC, 1600 Huron Parkway, Ann Arbor, Michigan 48109, United States
| | - Xue-Yan Yang
- Department of Medicinal Chemistry, School of Pharmacy, Xi'an Jiaotong University, Xi'an, Shaanxi 710061, PR China
| | - Yi-Ming Chen
- Department of Medicinal Chemistry, School of Pharmacy, Xi'an Jiaotong University, Xi'an, Shaanxi 710061, PR China
| | - San-Qi Zhang
- Department of Medicinal Chemistry, School of Pharmacy, Xi'an Jiaotong University, Xi'an, Shaanxi 710061, PR China
| | - Pengfei Li
- Frontier Institute of Science and Technology, Xi'an Jiaotong University, Xi'an, Shaanxi 710061, PR China
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5
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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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6
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Feberero C, Virumbrales C, Sedano C, Renedo L, Suárez-Pantiga S, Sanz R. Transition Metal-Free Synthesis of Halobenzo[ b]furans from O-Aryl Carbamates via o-Lithiation Reactions. MOLECULES (BASEL, SWITZERLAND) 2022; 27:molecules27020525. [PMID: 35056842 PMCID: PMC8778012 DOI: 10.3390/molecules27020525] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/21/2021] [Revised: 01/10/2022] [Accepted: 01/11/2022] [Indexed: 11/16/2022]
Abstract
A straightforward and transition metal-free one-pot protocol to synthesize halobenzo[b]furans has been developed employing simple and easily available starting materials such as O-aryl carbamates and alkynylsulfones. The fine-tuning of the different steps involved was key to achieving a successful one-pot procedure. Initially, a directed ortho-lithiation process, which uses the carbamate as the directed metalation group, was crucial in providing access to O-2-alkynylaryl N,N-diethyl carbamates by a direct alkynylation of the o-lithiated carbamate, with arylsulfonylalkynes as electrophilic reagents. Cyclization of the generated o-alkynylaryl carbamates was successfully accomplished through a strategy involving in situ carbamate alkaline hydrolysis under conventional heating or microwave irradiation, coupled with a subsequent heterocyclization step delivering the desired benzo[b]furans. A wide variety of new halobenzo[b]furans has been synthesized and their utility has been demonstrated by their further transformation.
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7
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Haldar C, Hoque ME, Chaturvedi J, Hassan MMM, Chattopadhyay B. Ir-catalyzed proximal and distal C-H borylation of arenes. Chem Commun (Camb) 2021; 57:13059-13074. [PMID: 34782892 DOI: 10.1039/d1cc05104k] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Abstract
Over the past two decades, the C-H bond activation and functionalization reaction has been known as a prevailing method for the construction of carbon-carbon and carbon-heteroatom bonds using various transition metal catalysts. In this context, the iridium-catalyzed C-H bond activation and borylation reaction is one of the most valued methods. However, the major challenge in these borylation reactions is how to control the proximal (ortho) and distal (meta and para) selectivity. Interestingly, while so many approaches are now available for the proximal ortho selective borylation of arenes, borylation at the distal meta and or para position of arenes remains still challenging. Only a few approaches have been reported so far in the literature employing iridium catalysis. In this feature article, we have demonstrated some of the recent discoveries from our laboratories for the proximal (ortho) and distal (meta and para) selective borylation reactions. Moreover, some of the recent catalyst engineering discoveries for the selective proximal ortho borylation reactions for a diverse class of substrates have also been discussed. The discussion part of several other pioneering reports is limited due to the lack of scope of this feature article.
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Affiliation(s)
- Chabush Haldar
- Center of Biomedical Research, Division of Molecular Synthesis & Drug Discovery, SGPGIMS Campus, Raebareli Road, Lucknow 226014, Uttar Pradesh, India.
| | - Md Emdadul Hoque
- Center of Biomedical Research, Division of Molecular Synthesis & Drug Discovery, SGPGIMS Campus, Raebareli Road, Lucknow 226014, Uttar Pradesh, India.
| | - Jagriti Chaturvedi
- Center of Biomedical Research, Division of Molecular Synthesis & Drug Discovery, SGPGIMS Campus, Raebareli Road, Lucknow 226014, Uttar Pradesh, India.
| | - Mirja Md Mahamudul Hassan
- Center of Biomedical Research, Division of Molecular Synthesis & Drug Discovery, SGPGIMS Campus, Raebareli Road, Lucknow 226014, Uttar Pradesh, India.
| | - Buddhadeb Chattopadhyay
- Center of Biomedical Research, Division of Molecular Synthesis & Drug Discovery, SGPGIMS Campus, Raebareli Road, Lucknow 226014, Uttar Pradesh, India.
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8
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Traj P, Abdolkhaliq AH, Németh A, Dajcs ST, Tömösi F, Lanisnik-Rizner T, Zupkó I, Mernyák E. Transition metal-catalysed A-ring C-H activations and C(sp 2)-C(sp 2) couplings in the 13α-oestrone series and in vitro evaluation of antiproliferative properties. J Enzyme Inhib Med Chem 2021; 36:895-902. [PMID: 33771084 PMCID: PMC8008932 DOI: 10.1080/14756366.2021.1900165] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2021] [Revised: 02/23/2021] [Accepted: 03/02/2021] [Indexed: 11/06/2022] Open
Abstract
Facile syntheses of 3-O-carbamoyl, -sulfamoyl, or -pivaloyl derivatives of 13α-oestrone and its 17-deoxy counterpart have been carried out. Microwave-induced, Ni-catalysed Suzuki-Miyaura couplings of the newly synthesised phenol esters with phenylboronic acid afforded 3-deoxy-3-phenyl-13α-oestrone derivatives. The carbamate and pivalate esters proved to be suitable for regioselective arylations. 2-(4-Substituted) phenyl derivatives were synthesised via Pd-catalysed, microwave-assisted C-H activation reactions. An efficient, one-pot, tandem methodology was elaborated for the introduction of the carbamoyl or pivaloyl group followed by regioselective C-2-arylation and subsequent removal of the directing group. The antiproliferative properties of the novel 13α-oestrone derivatives were evaluated in vitro on five human adherent cancer cell lines of gynaecological origin. 3-Sulfamate derivatives displayed substantial cell growth inhibitory potential against certain cell lines. The newly identified antiproliferative compounds having hormonally inactive core might be promising candidates for the design of more active anticancer agents.
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Affiliation(s)
- Péter Traj
- Department of Organic Chemistry, University of Szeged, Szeged, Hungary
| | | | - Anett Németh
- Department of Organic Chemistry, University of Szeged, Szeged, Hungary
| | | | - Ferenc Tömösi
- Department of Medicinal Chemistry, University of Szeged, Szeged, Hungary
| | - Tea Lanisnik-Rizner
- Institute of Biochemistry, Faculty of Medicine, University of Ljubljana, Ljubljana, Slovenia
| | - István Zupkó
- Department of Pharmacodynamics and Biopharmacy, University of Szeged, Szeged, Hungary
| | - Erzsébet Mernyák
- Department of Organic Chemistry, University of Szeged, Szeged, Hungary
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9
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Motokura K, Ding S, Usui K, Kong Y. Enhanced Catalysis Based on the Surface Environment of the Silica-Supported Metal Complex. ACS Catal 2021. [DOI: 10.1021/acscatal.1c03426] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Ken Motokura
- Department of Chemistry and Life Science, Yokohama National University, 79-5 Tokiwadai, Hodogaya-ku, Yokohama 240-8501, Japan
- Department of Chemical Science and Engineering, School of Materials and Chemical Technology, Tokyo Institute of Technology, 4259 Nagatsuta-cho, Midori-ku, Yokohama 226-8502, Japan
| | - Siming Ding
- Department of Chemistry and Life Science, Yokohama National University, 79-5 Tokiwadai, Hodogaya-ku, Yokohama 240-8501, Japan
- Department of Chemical Science and Engineering, School of Materials and Chemical Technology, Tokyo Institute of Technology, 4259 Nagatsuta-cho, Midori-ku, Yokohama 226-8502, Japan
| | - Kei Usui
- Department of Chemistry and Life Science, Yokohama National University, 79-5 Tokiwadai, Hodogaya-ku, Yokohama 240-8501, Japan
- Department of Chemical Science and Engineering, School of Materials and Chemical Technology, Tokyo Institute of Technology, 4259 Nagatsuta-cho, Midori-ku, Yokohama 226-8502, Japan
| | - Yuanyuan Kong
- Department of Chemistry and Life Science, Yokohama National University, 79-5 Tokiwadai, Hodogaya-ku, Yokohama 240-8501, Japan
- Department of Chemical Science and Engineering, School of Materials and Chemical Technology, Tokyo Institute of Technology, 4259 Nagatsuta-cho, Midori-ku, Yokohama 226-8502, Japan
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10
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Chandrashekar HB, Dolui P, Li B, Mandal A, Liu H, Guin S, Ge H, Maiti D. Ligand‐Enabled δ‐C(sp
3
)−H Borylation of Aliphatic Amines. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202105204] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Affiliation(s)
| | - Pravas Dolui
- Department of Chemistry Indian Institute of Technology Bombay, Powai Mumbai 400076 India
| | - Bijin Li
- Department of Chemistry and Biochemistry Lubbock TX 79409-1061 USA
- Chongqing Key Laboratory of Natural Product Synthesis and Drug Research School of Pharmaceutical Sciences Chongqing University Chongqing 401331 P. R. China
| | - Astam Mandal
- Department of Chemistry Indian Institute of Technology Bombay, Powai Mumbai 400076 India
| | - Hao Liu
- Department of Chemistry and Biochemistry Lubbock TX 79409-1061 USA
| | - Srimanta Guin
- Department of Chemistry Indian Institute of Technology Bombay, Powai Mumbai 400076 India
| | - Haibo Ge
- Department of Chemistry and Biochemistry Lubbock TX 79409-1061 USA
| | - Debabrata Maiti
- Department of Chemistry Indian Institute of Technology Bombay, Powai Mumbai 400076 India
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11
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Chandrashekar HB, Dolui P, Li B, Mandal A, Liu H, Guin S, Ge H, Maiti D. Ligand-Enabled δ-C(sp 3 )-H Borylation of Aliphatic Amines. Angew Chem Int Ed Engl 2021; 60:18194-18200. [PMID: 34117691 DOI: 10.1002/anie.202105204] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2021] [Revised: 05/18/2021] [Indexed: 02/03/2023]
Abstract
Directed C-H functionalization has been realized as a complimentary technique to achieve borylation at a distal position of aliphatic amines. Here, we demonstrated the oxidative borylation at the distal δ-position of aliphatic amines using various borylating agents, a palladium catalyst, and a rightly tuned ligand in the presence of a cheap oxidant. Moreover, an organopalladium δ-C(sp3 )-H-activated intermediate has been isolated and crystallographically characterized to get mechanistic insight.
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Affiliation(s)
| | - Pravas Dolui
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai, 400076, India
| | - Bijin Li
- Department of Chemistry and Biochemistry, Lubbock, TX, 79409-1061, USA.,Chongqing Key Laboratory of Natural Product Synthesis and Drug Research, School of Pharmaceutical Sciences, Chongqing University, Chongqing, 401331, P. R. China
| | - Astam Mandal
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai, 400076, India
| | - Hao Liu
- Department of Chemistry and Biochemistry, Lubbock, TX, 79409-1061, USA
| | - Srimanta Guin
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai, 400076, India
| | - Haibo Ge
- Department of Chemistry and Biochemistry, Lubbock, TX, 79409-1061, USA
| | - Debabrata Maiti
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai, 400076, India
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12
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Hoque ME, Hassan MMM, Chattopadhyay B. Remarkably Efficient Iridium Catalysts for Directed C(sp 2)-H and C(sp 3)-H Borylation of Diverse Classes of Substrates. J Am Chem Soc 2021; 143:5022-5037. [PMID: 33783196 DOI: 10.1021/jacs.0c13415] [Citation(s) in RCA: 69] [Impact Index Per Article: 23.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Here we describe the discovery of a new class of C-H borylation catalysts and their use for regioselective C-H borylation of aromatic, heteroaromatic, and aliphatic systems. The new catalysts have Ir-C(thienyl) or Ir-C(furyl) anionic ligands instead of the diamine-type neutral chelating ligands used in the standard C-H borylation conditions. It is reported that the employment of these newly discovered catalysts show excellent reactivity and ortho-selectivity for diverse classes of aromatic substrates with high isolated yields. Moreover, the catalysts proved to be efficient for a wide number of aliphatic substrates for selective C(sp3)-H bond borylations. Heterocyclic molecules are selectively borylated using the inherently elevated reactivity of the C-H bonds. A number of late-stage C-H functionalization have been described using the same catalysts. Furthermore, we show that one of the catalysts could be used even in open air for the C(sp2)-H and C(sp3)-H borylations enabling the method more general. Preliminary mechanistic studies suggest that the active catalytic intermediate is the Ir(bis)boryl complex, and the attached ligand acts as bidentate ligand. Collectively, this study underlines the discovery of new class of C-H borylation catalysts that should find wide application in the context of C-H functionalization chemistry.
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Affiliation(s)
- Md Emdadul Hoque
- 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
| | - 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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13
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Affiliation(s)
- Marin R. Auth
- Department of Chemistry and Biochemistry University of San Diego San Diego CA 92110 USA
| | - Kathryn A. McGarry
- Department of Chemistry University of Wisconsin-Stevens Point Stevens Point WI 54481 USA
| | - Timothy B. Clark
- Department of Chemistry and Biochemistry University of San Diego San Diego CA 92110 USA
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14
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Wright JS, Scott PJH, Steel PG. Iridium-Catalysed C-H Borylation of Heteroarenes: Balancing Steric and Electronic Regiocontrol. Angew Chem Int Ed Engl 2021; 60:2796-2821. [PMID: 32202024 PMCID: PMC7894576 DOI: 10.1002/anie.202001520] [Citation(s) in RCA: 68] [Impact Index Per Article: 22.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2020] [Revised: 03/09/2020] [Indexed: 12/19/2022]
Abstract
The iridium-catalysed borylation of aromatic C-H bonds has become the preferred method for the synthesis of aromatic organoboron compounds. The reaction is highly efficient, tolerant of a broad range of substituents and can be applied to both carbocyclic and heterocyclic substrates. The regioselectivity of C-H activation is dominated by steric considerations and there have been considerable efforts to develop more selective processes for less constrained substrates. However, most of these have focused on benzenoid-type substrates and in contrast, heteroarenes remain much desired but more challenging substrates with the position and/or nature of the heteroatom(s) significantly affecting reactivity and regioselectivity. This review will survey the borylation of heteroarenes, focusing on the influence of steric and electronic effects on regiochemical outcome and, by linking to current mechanistic understandings, will provide insights to what is currently possible and where further developments are required.
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Affiliation(s)
- Jay S. Wright
- Department of ChemistryUniversity of DurhamScience Laboratories, South Road DurhamDurhamDH1 3LEUK
- Department of RadiologyUniversity of MichiganAnn ArborMichiganUSA
| | | | - Patrick G. Steel
- Department of ChemistryUniversity of DurhamScience Laboratories, South Road DurhamDurhamDH1 3LEUK
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15
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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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16
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Luo H, Pei N, Zhang J. Advances in Nitrogen-Directed Aromatic Compound ortho-C—H Bond Borylation Catalyzed by Transition Metals. CHINESE J ORG CHEM 2021. [DOI: 10.6023/cjoc202103013] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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17
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Dhawa U, Kaplaneris N, Ackermann L. Green strategies for transition metal-catalyzed C–H activation in molecular syntheses. Org Chem Front 2021. [DOI: 10.1039/d1qo00727k] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Sustainable strategies for the activation of inert C–H bonds towards improved resource-economy.
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Affiliation(s)
- Uttam Dhawa
- Institut für Organische und Biomolekulare Chemie, Georg-August-Universität Göttingen, Tammannstraße 2, 37077 Göttingen, Germany
| | - Nikolaos Kaplaneris
- Institut für Organische und Biomolekulare Chemie, Georg-August-Universität Göttingen, Tammannstraße 2, 37077 Göttingen, Germany
| | - Lutz Ackermann
- Institut für Organische und Biomolekulare Chemie, Georg-August-Universität Göttingen, Tammannstraße 2, 37077 Göttingen, Germany
- Woehler Research Institute for Sustainable Chemistry (WISCh), Georg-August-Universität Göttingen, Tammannstraße 2, 37077 Göttingen, Germany
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18
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Zou X, Xu S. Recent Progress in Iridium-Catalyzed Remote Regioselective C—H Borylation of (Hetero)Arenes. CHINESE J ORG CHEM 2021. [DOI: 10.6023/cjoc202103020] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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19
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Wright JS, Scott PJH, Steel PG. Iridium‐katalysierte C‐H‐Borylierung von Heteroarenen: Eine Balance zwischen sterischer and elektronischer Regiokontrolle. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202001520] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Jay S. Wright
- Department of Chemistry University of Durham Science Laboratories, South Road Durham Durham DH1 3LE Großbritannien
- Department of Radiology University of Michigan Ann Arbor Michigan USA
| | - Peter J. H. Scott
- Department of Radiology University of Michigan Ann Arbor Michigan USA
| | - Patrick G. Steel
- Department of Chemistry University of Durham Science Laboratories, South Road Durham Durham DH1 3LE Großbritannien
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20
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Zeng J, Naito M, Torigoe T, Yamanaka M, Kuninobu Y. Iridium-Catalyzed ortho-C-H Borylation of Thioanisole Derivatives Using Bipyridine-Type Ligand. Org Lett 2020; 22:3485-3489. [PMID: 32323992 DOI: 10.1021/acs.orglett.0c00946] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
A simple iridium catalytic system was developed that allows for a variety of 2-borylthioanisoles to be easily synthesized via ortho-selective C-H borylation of thioanisole derivatives. Once introduced, boryl and methylthio groups were converted by palladium-catalyzed transformations. Density functional theory calculations revealed that weak interactions, such as hydrogen bonding between the C-H bond of the SCH3 group and the oxygen atom of the boryl ligand, control the ortho-selectivity.
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Affiliation(s)
- Jialin Zeng
- Department of Molecular and Material Sciences, Interdisciplinary Graduate School of Engineering Sciences, Kyushu University, 6-1 Kasugakoen, Kasuga-shi, Fukuoka 816-8580, Japan
| | - Morio Naito
- Department of Chemistry and Research Center for Smart Molecules, Faculty of Science, Rikkyo University, 3-34-1 Nishi-Ikebukuro, Toshima-ku, Tokyo 171-8501, Japan
| | - Takeru Torigoe
- Institute for Materials Chemistry and Engineering, Kyushu University, 6-1 Kasugakoen, Kasuga-shi, Fukuoka 816-8580, Japan.,Department of Molecular and Material Sciences, Interdisciplinary Graduate School of Engineering Sciences, Kyushu University, 6-1 Kasugakoen, Kasuga-shi, Fukuoka 816-8580, Japan
| | - Masahiro Yamanaka
- Department of Chemistry and Research Center for Smart Molecules, Faculty of Science, Rikkyo University, 3-34-1 Nishi-Ikebukuro, Toshima-ku, Tokyo 171-8501, Japan
| | - Yoichiro Kuninobu
- Institute for Materials Chemistry and Engineering, Kyushu University, 6-1 Kasugakoen, Kasuga-shi, Fukuoka 816-8580, Japan.,Department of Molecular and Material Sciences, Interdisciplinary Graduate School of Engineering Sciences, Kyushu University, 6-1 Kasugakoen, Kasuga-shi, Fukuoka 816-8580, Japan
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21
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Homma Y, Fukuda K, Iwasawa N, Takaya J. Ruthenium-catalyzed regio- and site-selective ortho C-H borylation of phenol derivatives. Chem Commun (Camb) 2020; 56:10710-10713. [PMID: 32789342 DOI: 10.1039/d0cc02889d] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
Efficient synthesis of o-borylphenols is achieved through the Ru-catalyzed regio- and site-selective sp2 C-H borylation of aryl diphenylphosphinites followed by removal of the phosphorus directing group. A successful application to aryl phosphites enables practical one-pot borylation of phenols, demonstrating high synthetic utility of this protocol.
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Affiliation(s)
- Yuki Homma
- Department of Chemistry, Tokyo Institute of Technology, O-okayama, Meguro-ku, Tokyo 152-8551, Japan.
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22
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Bach T, Truchan N, Jandl C, Pöthig A, Breitenlechner S. Access to Biphenyls by Palladium-Catalyzed Oxidative Coupling of Phenyl Carbamates and Phenols. SYNTHESIS-STUTTGART 2019. [DOI: 10.1055/s-0037-1611482] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
The oxidative cross-coupling of phenols (3 equiv) to various substituted phenyl N,N-diethylcarbamates was explored with a variety of substrates. Pd(OAc)2 was employed as the catalyst (20 mol%) and K2S2O8 as the stoichiometric oxidant in trifluoroacetic acid as the solvent (50 °C, 2 h). Carbamates without or with a substituent on the phenyl ring (Me, Ph, Cl, OMe) underwent the reaction unless the phenyl substituent was too strongly electron withdrawing (CN). Cross-coupling occurred exclusively in the ortho position relative to the carbamate group. The regioselectivity at the phenol (ortho or para to hydroxy) was mainly determined by steric factors. Yields up to 60–70% were achieved for specific carbamate/phenol combinations.
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Affiliation(s)
- Thorsten Bach
- Department Chemie and Catalysis Research Center (CRC), Technische Universität München
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23
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Takamatsu K, Hayashi Y, Kawauchi S, Hirano K, Miura M. Copper-Catalyzed Regioselective C–H Amination of Phenol Derivatives with Assistance of Phenanthroline-Based Bidentate Auxiliary. ACS Catal 2019. [DOI: 10.1021/acscatal.9b01145] [Citation(s) in RCA: 38] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
- Kazutaka Takamatsu
- Department of Applied Chemistry, Graduate School of Engineering, Osaka University, Suita, Osaka 565-0871, Japan
| | - Yoshihiro Hayashi
- Department of Chemical Science and Engineering, School of Materials and Chemical Technology, Tokyo Institute of Technology, 2-12-1 O-okayama, Meguro-ku, Tokyo 152-8552, Japan
| | - Susumu Kawauchi
- Department of Chemical Science and Engineering, School of Materials and Chemical Technology, Tokyo Institute of Technology, 2-12-1 O-okayama, Meguro-ku, Tokyo 152-8552, Japan
| | - Koji Hirano
- Department of Applied Chemistry, Graduate School of Engineering, Osaka University, Suita, Osaka 565-0871, Japan
| | - Masahiro Miura
- Department of Applied Chemistry, Graduate School of Engineering, Osaka University, Suita, Osaka 565-0871, 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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Hyland SN, Meck EA, Tortosa M, Clark TB. α-Amidoboronate esters by amide-directed alkane C H borylation. Tetrahedron Lett 2019. [DOI: 10.1016/j.tetlet.2019.03.020] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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26
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Dabiri M, Osmani C, Nikbakht R, Movahed SK. Palladium‐Catalyzed Regioselective C‐H Bond ortho‐Acetylation and Oxidative Homocoupling of N‐Arylcarbamates. ChemistrySelect 2019. [DOI: 10.1002/slct.201803053] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Minoo Dabiri
- Faculty of Chemistry and Petroleum SciencesShahid Beheshti University Tehran Province Tehran, District 1, Daneshjou Boulevard 1983969411
| | - Chiman Osmani
- Faculty of Chemistry and Petroleum SciencesShahid Beheshti University Tehran Province Tehran, District 1, Daneshjou Boulevard 1983969411
| | - Roonak Nikbakht
- Faculty of Chemistry and Petroleum SciencesShahid Beheshti University Tehran Province Tehran, District 1, Daneshjou Boulevard 1983969411
| | - Siyavash Kazemi Movahed
- Faculty of Chemistry and Petroleum SciencesShahid Beheshti University Tehran Province Tehran, District 1, Daneshjou Boulevard 1983969411
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27
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Zou X, Zhao H, Li Y, Gao Q, Ke Z, Senmiao Xu. Chiral Bidentate Boryl Ligand Enabled Iridium-Catalyzed Asymmetric C(sp2)–H Borylation of Diarylmethylamines. J Am Chem Soc 2019; 141:5334-5342. [DOI: 10.1021/jacs.8b13756] [Citation(s) in RCA: 70] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Affiliation(s)
- Xiaoliang Zou
- State Key Laboratory for Oxo Synthesis and Selective Oxidation, Center for Excellence in Molecular Synthesis, Suzhou Research Institute, Lanzhou Institute of Chemical Physics, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Lanzhou 73000, China
| | - Haonan Zhao
- State Key Laboratory for Oxo Synthesis and Selective Oxidation, Center for Excellence in Molecular Synthesis, Suzhou Research Institute, Lanzhou Institute of Chemical Physics, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Lanzhou 73000, China
| | - Yinwu Li
- School of Materials Science & Engineering, PCFM Lab, Sun Yat-sen University, Guangzhou 510275, 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, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Lanzhou 73000, China
| | - Zhuofeng Ke
- School of Materials Science & Engineering, PCFM Lab, Sun Yat-sen University, Guangzhou 510275, 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, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Lanzhou 73000, China
- Key Laboratory of Organosilicon Chemistry and Material Technology of Ministry of Education, Hangzhou Normal University, Hangzhou 311121, China
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28
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Wright SE, Richardson‐Solorzano S, Stewart TN, Miller CD, Morris KC, Daley CJA, Clark TB. Accessing Ambiphilic Phosphine Boronates through C−H Borylation by an Unforeseen Cationic Iridium Complex. Angew Chem Int Ed Engl 2019; 58:2834-2838. [DOI: 10.1002/anie.201812857] [Citation(s) in RCA: 51] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2018] [Indexed: 12/20/2022]
Affiliation(s)
- Shawn E. Wright
- Department of Chemistry & BiochemistryUniversity of San Diego 5998 Alcalá Park San Diego CA 92110 USA
| | | | - Tiffany N. Stewart
- Department of Chemistry & BiochemistryUniversity of San Diego 5998 Alcalá Park San Diego CA 92110 USA
| | - Christopher D. Miller
- Department of Chemistry & BiochemistryUniversity of San Diego 5998 Alcalá Park San Diego CA 92110 USA
| | - Kelsey C. Morris
- Department of Chemistry & BiochemistryUniversity of San Diego 5998 Alcalá Park San Diego CA 92110 USA
| | - Christopher J. A. Daley
- Department of Chemistry & BiochemistryUniversity of San Diego 5998 Alcalá Park San Diego CA 92110 USA
| | - Timothy B. Clark
- Department of Chemistry & BiochemistryUniversity of San Diego 5998 Alcalá Park San Diego CA 92110 USA
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29
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Wright SE, Richardson‐Solorzano S, Stewart TN, Miller CD, Morris KC, Daley CJA, Clark TB. Accessing Ambiphilic Phosphine Boronates through C−H Borylation by an Unforeseen Cationic Iridium Complex. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201812857] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Shawn E. Wright
- Department of Chemistry & Biochemistry University of San Diego 5998 Alcalá Park San Diego CA 92110 USA
| | | | - Tiffany N. Stewart
- Department of Chemistry & Biochemistry University of San Diego 5998 Alcalá Park San Diego CA 92110 USA
| | - Christopher D. Miller
- Department of Chemistry & Biochemistry University of San Diego 5998 Alcalá Park San Diego CA 92110 USA
| | - Kelsey C. Morris
- Department of Chemistry & Biochemistry University of San Diego 5998 Alcalá Park San Diego CA 92110 USA
| | - Christopher J. A. Daley
- Department of Chemistry & Biochemistry University of San Diego 5998 Alcalá Park San Diego CA 92110 USA
| | - Timothy B. Clark
- Department of Chemistry & Biochemistry University of San Diego 5998 Alcalá Park San Diego CA 92110 USA
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30
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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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31
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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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32
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Maeda Y, Sato M, Okada S, Murata M. Ruthenium-catalyzed nitrogen-directed ortho C H borylation of aromatic imines with pinacolborane. Tetrahedron Lett 2018. [DOI: 10.1016/j.tetlet.2018.05.038] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/16/2022]
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33
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Li QL, Li ZY, Wang GW. Palladium-Catalyzed Decarboxylative ortho-Acylation of Anilines with Carbamate as a Removable Directing Group. ACS OMEGA 2018; 3:4187-4198. [PMID: 31458653 PMCID: PMC6641432 DOI: 10.1021/acsomega.8b00441] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/08/2018] [Accepted: 04/04/2018] [Indexed: 05/12/2023]
Abstract
An efficient palladium-catalyzed decarboxylative ortho-acylation of anilines with α-oxocarboxylic acids has been realized by using carbamate as a directing group (DG). The reaction proceeds smoothly with high regioselectivity to afford diverse acylation products of aniline derivatives in moderate to good yields under mild conditions. This transformation exhibits broad substrate scope and highly functional group tolerance. In addition, the employed DG can be easily removed to give the corresponding 2-amino aromatic ketones. Importantly, several transformations of the synthesized ortho-acylated anilines into several synthetically valuable products have been demonstrated for their utilities.
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Affiliation(s)
- Qi-Li Li
- CAS
Key Laboratory of Soft Matter Chemistry, Collaborative Innovation
Center of Chemistry for Energy Materials (iChEM), Hefei National Laboratory
for Physical Sciences at Microscale, and Department of Chemistry, University of Science and Technology of China, Hefei, Anhui 230026, P. R. China
| | - Zhong-Yuan Li
- CAS
Key Laboratory of Soft Matter Chemistry, Collaborative Innovation
Center of Chemistry for Energy Materials (iChEM), Hefei National Laboratory
for Physical Sciences at Microscale, and Department of Chemistry, University of Science and Technology of China, Hefei, Anhui 230026, P. R. China
| | - Guan-Wu Wang
- CAS
Key Laboratory of Soft Matter Chemistry, Collaborative Innovation
Center of Chemistry for Energy Materials (iChEM), Hefei National Laboratory
for Physical Sciences at Microscale, and Department of Chemistry, University of Science and Technology of China, Hefei, Anhui 230026, P. R. China
- State
Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou, Gansu 730000, P. R. China
- E-mail:
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34
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Xue C, Luo Y, Teng H, Ma Y, Nishiura M, Hou Z. Ortho-Selective C–H Borylation of Aromatic Ethers with Pinacol-borane by Organo Rare-Earth Catalysts. ACS Catal 2018. [DOI: 10.1021/acscatal.8b01364] [Citation(s) in RCA: 44] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Can Xue
- Advanced Catalysis Research Group, RIKEN Center for Sustainable Resource Science, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - Yong Luo
- Organometallic Chemistry Laboratory, RIKEN Cluster for Pioneering Research, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - Huailong Teng
- Advanced Catalysis Research Group, RIKEN Center for Sustainable Resource Science, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - Yuanhong Ma
- Organometallic Chemistry Laboratory, RIKEN Cluster for Pioneering Research, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - Masayoshi Nishiura
- Advanced Catalysis Research Group, RIKEN Center for Sustainable Resource Science, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
- Organometallic Chemistry Laboratory, RIKEN Cluster for Pioneering Research, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - Zhaomin Hou
- Advanced Catalysis Research Group, RIKEN Center for Sustainable Resource Science, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
- Organometallic Chemistry Laboratory, RIKEN Cluster for Pioneering Research, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
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35
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Yao H, Liu Y, Tyagarajan S, Streckfuss E, Reibarkh M, Chen K, Zamora I, Fontaine F, Goracci L, Helmy R, Bateman KP, Krska SW. Enabling Efficient Late-Stage Functionalization of Drug-Like Molecules with LC-MS and Reaction-Driven Data Processing. European J Org Chem 2017. [DOI: 10.1002/ejoc.201701573] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Huifang Yao
- Department of Pharmacokinetics; Pharmacodynamics and Drug Metabolism; Merck Sharp & Dohme Corp.; Kenilworth NJ USA
| | - Yong Liu
- Department of Process Research & Development; Merck Sharp & Dohme Corp.; Rahway NJ USA
| | - Sriram Tyagarajan
- HTE & Lead Discovery Capabilities; Merck Sharp & Dohme Corp.; Kenilworth NJ USA
| | - Eric Streckfuss
- HTE & Lead Discovery Capabilities; Merck Sharp & Dohme Corp.; Kenilworth NJ USA
| | - Mikhail Reibarkh
- Department of Process Research & Development; Merck Sharp & Dohme Corp.; Rahway NJ USA
| | - Kuanchang Chen
- HTE & Lead Discovery Capabilities; Merck Sharp & Dohme Corp.; Kenilworth NJ USA
| | - Ismael Zamora
- Lead Molecular Design, S.L.; Sant Cugat Del Valles Spain
| | | | - Laura Goracci
- Department of Chemistry, Biology and Biotechnology; University of Perugia; Perugia Italy
| | - Roy Helmy
- Department of Process Research & Development; Merck Sharp & Dohme Corp.; Rahway NJ USA
| | - Kevin P. Bateman
- Department of Pharmacokinetics; Pharmacodynamics and Drug Metabolism; Merck Sharp & Dohme Corp.; Kenilworth NJ USA
| | - Shane W. Krska
- HTE & Lead Discovery Capabilities; Merck Sharp & Dohme Corp.; Kenilworth NJ USA
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36
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Reyes RL, Harada T, Taniguchi T, Monde K, Iwai T, Sawamura M. Enantioselective Rh- or Ir-catalyzed Directed C(sp3)–H Borylation with Phosphoramidite Chiral Ligands. CHEM LETT 2017. [DOI: 10.1246/cl.170853] [Citation(s) in RCA: 45] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Ronald L. Reyes
- Department of Chemistry, Faculty of Science, Hokkaido University, Sapporo, Hokkaido 060-0810
| | - Tomoya Harada
- Department of Chemistry, Faculty of Science, Hokkaido University, Sapporo, Hokkaido 060-0810
| | - Tohru Taniguchi
- Frontier Research Center for Advanced Material and Life Science, Faculty of Advanced Life Science, Hokkaido University, Sapporo, Hokkaido 001-0021
| | - Kenji Monde
- Frontier Research Center for Advanced Material and Life Science, Faculty of Advanced Life Science, Hokkaido University, Sapporo, Hokkaido 001-0021
| | - Tomohiro Iwai
- Department of Chemistry, Faculty of Science, Hokkaido University, Sapporo, Hokkaido 060-0810
| | - Masaya Sawamura
- Department of Chemistry, Faculty of Science, Hokkaido University, Sapporo, Hokkaido 060-0810
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37
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Schranck J, Furer P, Hartmann V, Tlili A. Nickel-Catalyzed Amination of Aryl Carbamates with Ammonia. European J Org Chem 2017. [DOI: 10.1002/ejoc.201700660] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
| | - Patrick Furer
- Solvias AG; Römerpark 2 4303 Kaiseraugst Switzerland
| | | | - Anis Tlili
- Institut de Chimie et Biochimie Moléculaires et Supramoléculaires; CNRS UMR 5246; Université Claude Bernard Lyon 1; 43 Boulevard du 11 Novembre 1918 69100 Villeurbanne France
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38
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Hoque ME, Bisht R, Haldar C, Chattopadhyay B. Noncovalent Interactions in Ir-Catalyzed C-H Activation: L-Shaped Ligand for Para-Selective Borylation of Aromatic Esters. J Am Chem Soc 2017; 139:7745-7748. [PMID: 28537744 DOI: 10.1021/jacs.7b04490] [Citation(s) in RCA: 176] [Impact Index Per Article: 25.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
An efficient strategy for the para-selective borylation of aromatic esters is described. For achieving high para-selectivity, a new catalytic system has been developed modifying the core structure of the bipyridine. It has been proposed that the L-shaped ligand is essential to recognize the functionality of the oxygen atom of the ester carbonyl group via noncovalent interaction, which provides an unprecedented controlling factor for para-selective C-H activation/borylation.
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Affiliation(s)
- Md Emdadul Hoque
- Center of Bio-Medical Research, Division of Molecular Synthesis & Drug Discovery, SGPGIMS Campus , Raebareli Road, Lucknow 226014, Uttar Pradesh, India
| | - 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
| | - 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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39
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Chattopadhyay B, Dannatt JE, Andujar-De Sanctis IL, Gore KA, Maleczka RE, Singleton DA, Smith MR. Ir-Catalyzed ortho-Borylation of Phenols Directed by Substrate-Ligand Electrostatic Interactions: A Combined Experimental/in Silico Strategy for Optimizing Weak Interactions. J Am Chem Soc 2017; 139:7864-7871. [PMID: 28453268 DOI: 10.1021/jacs.7b02232] [Citation(s) in RCA: 114] [Impact Index Per Article: 16.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
A strategy for affecting ortho versus meta/para selectivity in Ir-catalyzed C-H borylations (CHBs) of phenols is described. From selectivity observations with ArylOBpin (pin = pinacolate), it is hypothesized that an electrostatic interaction between the partial negatively charged OBpin group and the partial positively charged bipyridine ligand of the catalyst favors ortho selectivity. Experimental and computational studies designed to test this hypothesis support it. From further computational work a second generation, in silico designed catalyst emerged, where replacing Bpin with Beg (eg = ethylene glycolate) was predicted to significantly improve ortho selectivity. Experimentally, reactions employing B2eg2 gave ortho selectivities > 99%. Adding triethylamine significantly improved conversions. This ligand-substrate electrostatic interaction provides a unique control element for selective C-H functionalization.
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Affiliation(s)
- Buddhadeb Chattopadhyay
- Department of Chemistry, Michigan State University , 578 South Shaw Lane, East Lansing, Michigan 48824-1322 United States.,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
| | - Jonathan E Dannatt
- Department of Chemistry, Michigan State University , 578 South Shaw Lane, East Lansing, Michigan 48824-1322 United States
| | | | - Kristin A Gore
- 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
| | - Daniel A Singleton
- Department of Chemistry, Texas A&M University , PO Box 30012, College Station, Texas 77842, United States
| | - Milton R Smith
- Department of Chemistry, Michigan State University , 578 South Shaw Lane, East Lansing, Michigan 48824-1322 United States
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40
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Yang L, Fu L, Li G. Incorporation of Carbon Dioxide into Carbamate Directing Groups: Palladium-Catalyzed meta
-C-H Olefination and Acetoxylation of Aniline Derivatives. Adv Synth Catal 2017. [DOI: 10.1002/adsc.201700261] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Long Yang
- College of Chemistry; Fuzhou University; Fuzhou 350002 People's Republic of China
- Key Laboratory of Coal to Ethylene Glycol and Its Related Technology, Fujian Institute of Research on the Structure of Matter; Chinese Academy of Sciences; Fuzhou, Fujian 350002 People's Republic of China
| | - Lei Fu
- Key Laboratory of Coal to Ethylene Glycol and Its Related Technology, Fujian Institute of Research on the Structure of Matter; Chinese Academy of Sciences; Fuzhou, Fujian 350002 People's Republic of China
| | - Gang Li
- Key Laboratory of Coal to Ethylene Glycol and Its Related Technology, Fujian Institute of Research on the Structure of Matter; Chinese Academy of Sciences; Fuzhou, Fujian 350002 People's Republic of China
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41
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Yamamoto T, Ishibashi A, Suginome M. Regioselective Synthesis of o-Benzenediboronic Acids via Ir-Catalyzed o-C–H Borylation Directed by a Pyrazolylaniline-Modified Boronyl Group. Org Lett 2017; 19:886-889. [DOI: 10.1021/acs.orglett.7b00041] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Takeshi Yamamoto
- Department of Synthetic Chemistry
and Biological Chemistry, Graduate School of Engineering, Kyoto University, Katsura, Nishikyo-ku, Kyoto 615-8510, Japan
| | - Aoi Ishibashi
- Department of Synthetic Chemistry
and Biological Chemistry, Graduate School of Engineering, Kyoto University, Katsura, Nishikyo-ku, Kyoto 615-8510, Japan
| | - Michinori Suginome
- Department of Synthetic Chemistry
and Biological Chemistry, Graduate School of Engineering, Kyoto University, Katsura, Nishikyo-ku, Kyoto 615-8510, Japan
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42
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Lipid Oxidation, Color Changes, and Microbiological Quality of Frozen Beef Burgers Incorporated with Shirazi Thyme, Cinnamon, and Rosemary Extracts. J FOOD QUALITY 2017. [DOI: 10.1155/2017/6350156] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
In this study, the oxidative stability of beef burgers incorporated with Shirazi thyme, cinnamon, and rosemary extracts was compared with that of BHT-incorporated and antioxidant-free samples. The chemical composition, TBARS, metmyoglobin, pH, color, and microbial and sensory characteristics were evaluated during storage at −18°C for 2 months. The results indicated that Shirazi thyme and cinnamon extracts did not change the colorimetric properties significantly (P<0.05). Incorporating natural antioxidants led to a significant (P<0.05) reduction in TBARS (36.58–46.34%) and metmyoglobin (16.25–18.47%) as compared to control. Except for the control sample, total microbial counts of burgers were lower than the maximum allowed limit. Burgers formulated with Shirazi thyme revealed the lowest amount of total count. Regarding the sensory characteristics, the overall acceptability of different samples decreased in the order of cinnamon > BHT > Shirazi thyme > rosemary > control. Finally, the results showed that these plant extracts can be utilized as an alternative to synthetic antioxidants in formulation of burgers.
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43
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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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44
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Wang G, Liu L, Wang H, Ding YS, Zhou J, Mao S, Li P. N,B-Bidentate Boryl Ligand-Supported Iridium Catalyst for Efficient Functional-Group-Directed C–H Borylation. J Am Chem Soc 2016; 139:91-94. [DOI: 10.1021/jacs.6b11867] [Citation(s) in RCA: 114] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Guanghui Wang
- Frontier
Institute of Science and Technology, Xi’an Jiaotong University, Xi’an, 710054, China
| | - Li Liu
- Frontier
Institute of Science and Technology, Xi’an Jiaotong University, Xi’an, 710054, China
| | - Hong Wang
- Frontier
Institute of Science and Technology, Xi’an Jiaotong University, Xi’an, 710054, China
| | - You-Song Ding
- Frontier
Institute of Science and Technology, Xi’an Jiaotong University, Xi’an, 710054, China
| | - Jing Zhou
- Frontier
Institute of Science and Technology, Xi’an Jiaotong University, Xi’an, 710054, China
| | - Shuai Mao
- Department
of Medicinal Chemistry, School of Pharmacy, Xi’an Jiaotong University, Xi’an, 710061, China
| | - Pengfei Li
- Frontier
Institute of Science and Technology, Xi’an Jiaotong University, Xi’an, 710054, China
- State
Key Laboratory of Elemento-Organic Chemistry, Nankai University, Tianjin, 300071, China
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45
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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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46
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Marcum JS, McGarry KA, Ferber CJ, Clark TB. Synthesis of Biaryl Ethers by the Copper-Catalyzed Chan–Evans–Lam Etherification from Benzylic Amine Boronate Esters. J Org Chem 2016; 81:7963-9. [DOI: 10.1021/acs.joc.6b01254] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Affiliation(s)
- Justin S. Marcum
- Department of Chemistry & Biochemistry, University of San Diego, 5998 Alcalá Park, San Diego, California 92110, United States
| | - Kathryn A. McGarry
- Department of Chemistry & Biochemistry, University of San Diego, 5998 Alcalá Park, San Diego, California 92110, United States
| | - Carl J. Ferber
- Department of Chemistry & Biochemistry, University of San Diego, 5998 Alcalá Park, San Diego, California 92110, United States
| | - Timothy B. Clark
- Department of Chemistry & Biochemistry, University of San Diego, 5998 Alcalá Park, San Diego, California 92110, United States
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47
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Sasaki I, Taguchi J, Doi H, Ito H, Ishiyama T. Iridium(I)-catalyzed C−H Borylation of α,β-Unsaturated Esters with Bis(pinacolato)diboron. Chem Asian J 2016; 11:1400-5. [DOI: 10.1002/asia.201600078] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2016] [Indexed: 11/09/2022]
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) 11-706-6562
| | - 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) 11-706-6562
| | - Hana Doi
- 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) 11-706-6562
| | - 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) 11-706-6562
| | - 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) 11-706-6562
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48
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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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49
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Iwai T, Konishi S, Miyazaki T, Kawamorita S, Yokokawa N, Ohmiya H, Sawamura M. Silica-Supported Triptycene-Type Phosphine. Synthesis, Characterization, and Application to Pd-Catalyzed Suzuki–Miyaura Cross-Coupling of Chloroarenes. ACS Catal 2015. [DOI: 10.1021/acscatal.5b00904] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Affiliation(s)
- Tomohiro Iwai
- Department
of Chemistry,
Faculty of Science, Hokkaido University, Sapporo 060-0810, Japan
| | - Shota Konishi
- Department
of Chemistry,
Faculty of Science, Hokkaido University, Sapporo 060-0810, Japan
| | - Tatsuya Miyazaki
- Department
of Chemistry,
Faculty of Science, Hokkaido University, Sapporo 060-0810, Japan
| | - Soichiro Kawamorita
- Department
of Chemistry,
Faculty of Science, Hokkaido University, Sapporo 060-0810, Japan
| | - Natsumi Yokokawa
- Department
of Chemistry,
Faculty of Science, Hokkaido University, Sapporo 060-0810, Japan
| | - Hirohisa Ohmiya
- Department
of Chemistry,
Faculty of Science, Hokkaido University, Sapporo 060-0810, Japan
| | - Masaya Sawamura
- Department
of Chemistry,
Faculty of Science, Hokkaido University, Sapporo 060-0810, Japan
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50
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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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