1
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Guan Q, Ding F, Zhang C. Highly Selective Boron-Wittig Reaction: A Practical Method to Synthesize Trans-Aryl Alkenes. Chemistry 2024; 30:e202401801. [PMID: 39072812 DOI: 10.1002/chem.202401801] [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: 05/07/2024] [Revised: 07/11/2024] [Accepted: 07/22/2024] [Indexed: 07/30/2024]
Abstract
Olefins play an essential role in synthetic chemistry, serving not only as important synthons but also as key functional groups in numerous bio-active molecules. Consequently, there has been considerable interest in the development of more powerful methods for olefins. While the Wittig reaction stands as a prominent choice for olefin synthesis due to its simplicity and the ready availability of raw materials, its limitation lies in the challenge of controlling cis-trans selectivity, hampering its broader application. In this study, a novel Boron-Wittig reaction has been developed utilizing gem-bis(boryl)alkanes and aldehydes as starting materials. This method enables creating favourable intermediates, which possess less steric hindrance, and leading to trans-olefins via intramolecular O-B bonds elimination. Notably, synthesis studies have validated its good efficacy in modifying bioactive molecules and synthesizing drug molecules with great trans-selectivity. Furthermore, the reaction mechanism was elucidated based on intermediate trapping experiments, isotope labelling studies, and kinetic analyses.
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Affiliation(s)
- Qitao Guan
- Institute of Molecular Plus, Department of Chemistry, School of Pharmaceutical Science and Technology, Faculty of Medicine, Tianjin University, Weijin Road 92, Tianjin, 300072, China
| | - Fupan Ding
- Institute of Molecular Plus, Department of Chemistry, School of Pharmaceutical Science and Technology, Faculty of Medicine, Tianjin University, Weijin Road 92, Tianjin, 300072, China
| | - Chun Zhang
- Institute of Molecular Plus, Department of Chemistry, School of Pharmaceutical Science and Technology, Faculty of Medicine, Tianjin University, Weijin Road 92, Tianjin, 300072, China
- Tianjin Key Laboratory of Innovative Drugs Targeting the Central Nervous System, Lanyuan Road 5, Tianjin, 300384, China
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2
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Hwang C, Jang Y, Jung Y, Seo J, Shin K, Cho SH. Diverse Synthesis of (Thio)ethers and (Thio)esters Using Halodiborylmethane as a Transformable C 1 Building Block. Org Lett 2024; 26:7010-7014. [PMID: 39115428 DOI: 10.1021/acs.orglett.4c02510] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/10/2024]
Abstract
The development of effective strategies to forge C-O and C-S bonds in diverse chemical spaces is of considerable interest in synthetic organic chemistry. Herein we report a versatile approach for the modular synthesis of structurally diverse (thio)ethers and (thio)esters via homologative coupling of α-halodiborylmethane followed by transformation of the introduced diborylmethyl group. This method accommodates a wide array of oxygen- and sulfur-containing molecules, including biologically active compounds. The initial coupling exhibits a broad substrate scope, while subsequent diversification of the diborylmethyl moiety enables access to various structural motifs through deborylative alkylation, Zweifel olefination, and boron-Wittig reaction. This protocol efficiently generates diversely functionalized (thio)ethers and (thio)esters, expanding the toolkit for accessing biologically relevant scaffolds.
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Affiliation(s)
- Chiwon Hwang
- Department of Chemistry, Pohang University of Science and Technology (POSTECH), Pohang 37673, Republic of Korea
| | - Yunhui Jang
- Department of Chemistry, Pohang University of Science and Technology (POSTECH), Pohang 37673, Republic of Korea
| | - Yongsuk Jung
- Department of Chemistry, Pohang University of Science and Technology (POSTECH), Pohang 37673, Republic of Korea
| | - Jaeyoon Seo
- Department of Chemistry, Pohang University of Science and Technology (POSTECH), Pohang 37673, Republic of Korea
| | - Kwangmin Shin
- Department of Chemistry, Sungkyunkwan University, Suwon 16419, Republic of Korea
| | - Seung Hwan Cho
- Department of Chemistry, Pohang University of Science and Technology (POSTECH), Pohang 37673, Republic of Korea
- Institute for Convergence Research and Education in Advanced Technology (I-CREATE), Yonsei University, Seoul 03722, Republic of Korea
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3
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Ning PF, Wei Y, Chen XY, Yang YF, Gao FC, Hong K. A General Method to Access Sterically Encumbered Geminal Bis(boronates) via Formal Umpolung Transformation of Terminal Diboron Compounds. Angew Chem Int Ed Engl 2024; 63:e202315232. [PMID: 38059757 DOI: 10.1002/anie.202315232] [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: 10/10/2023] [Revised: 11/30/2023] [Accepted: 12/01/2023] [Indexed: 12/08/2023]
Abstract
General methods for the preparation of geminal bis(boronates) are of great interest due to their widespread applications in organic synthesis. While the terminal gem-diboron compounds are readily accessible, the construction of the sterically encumbered, internal analogues has remained a prominent challenge. Herein, we report a formal umpolung strategy to access these valuable building blocks. The readily available 1,1-diborylalkanes were first converted into the corresponding α-halogenated derivatives, which then serve as electrophilic components, undergoing a formal substitution with a diverse array of nucleophiles to form a series of C-C, C-O, C-S, and C-N bonds. This protocol features good tolerance to steric hindrance and a wide variety of functional groups and heterocycles. Notably, this strategy can also be extended to the synthesis of diaryl and terminal gem-diboron compounds, therefore providing a general approach to various types of geminal bis(boronates).
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Affiliation(s)
- Peng-Fei Ning
- Shanghai Engineering Research Center of Molecular Therapeutics and New Drug Development, School of Chemistry and Molecular Engineering, East China Normal University, 3663 N Zhongshan Road, Shanghai, 200062, China
| | - Yi Wei
- Shanghai Engineering Research Center of Molecular Therapeutics and New Drug Development, School of Chemistry and Molecular Engineering, East China Normal University, 3663 N Zhongshan Road, Shanghai, 200062, China
| | - Xin-Yi Chen
- Shanghai Engineering Research Center of Molecular Therapeutics and New Drug Development, School of Chemistry and Molecular Engineering, East China Normal University, 3663 N Zhongshan Road, Shanghai, 200062, China
| | - Yi-Fei Yang
- Shanghai Engineering Research Center of Molecular Therapeutics and New Drug Development, School of Chemistry and Molecular Engineering, East China Normal University, 3663 N Zhongshan Road, Shanghai, 200062, China
| | - Feng-Chen Gao
- Shanghai Engineering Research Center of Molecular Therapeutics and New Drug Development, School of Chemistry and Molecular Engineering, East China Normal University, 3663 N Zhongshan Road, Shanghai, 200062, China
| | - Kai Hong
- Shanghai Engineering Research Center of Molecular Therapeutics and New Drug Development, School of Chemistry and Molecular Engineering, East China Normal University, 3663 N Zhongshan Road, Shanghai, 200062, China
- Shanghai Frontiers Science Center of Molecule Intelligent Syntheses, School of Chemistry and Molecular Engineering, East China Normal University, 3663 N Zhongshan Road, Shanghai, 200062, China
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4
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Xu LC, Ma XD, Liu KM, Duan XF. Chemo- and Regioselective Alkylation of Pyridine N-Oxides with Titanacyclopropanes. Org Lett 2023. [PMID: 38016093 DOI: 10.1021/acs.orglett.3c03469] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2023]
Abstract
While titanacyclopropanes are used to react mainly with ester, amide, and cyano to undergo cyclopropanation, herein they react preferentially with pyridine N-oxide to accomplish C2-H alkylation beyond these functionalities with double regioselectivity. After being pyridylated at the less hindered C-Ti bond, the remaining C-Ti bond of titanacyclopropanes can be further functionalized by various electrophiles, allowing facile introduction of complex alkyls onto the C2 of pyridines. Its synthetic potential has been demonstrated by late-stage diversification of drugs.
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Affiliation(s)
- Li-Chen Xu
- College of Chemistry, Beijing Normal University, Beijing 100875, P.R. China
| | - Xiao-Di Ma
- College of Chemistry, Beijing Normal University, Beijing 100875, P.R. China
| | - Kun-Ming Liu
- College of Chemistry, Beijing Normal University, Beijing 100875, P.R. China
| | - Xin-Fang Duan
- College of Chemistry, Beijing Normal University, Beijing 100875, P.R. China
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5
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Zhu F, Yin P. Multicomponent Reaction: Pd/Cu-Catalyzed Borocarbonylation of Aryldiazonium Salts with Aliphatic Terminal Alkynes to gem-Bis(boryl) Ketones. Chemistry 2023; 29:e202301826. [PMID: 37369918 DOI: 10.1002/chem.202301826] [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: 06/07/2023] [Revised: 06/27/2023] [Accepted: 06/27/2023] [Indexed: 06/29/2023]
Abstract
We report the development of Pd/Cu-catalyzed selective 2,1-borocarbonylation reactions of aliphatic terminal alkynes with aryldiazonium salts and B2 Pin2 to prepare gem-bis(boryl) ketones in one-pot. A series of corresponding products are obtained with good to excellent yields under a carbon monoxide atmosphere (10 bar). In addition, wide functional-group tolerance can be observed. Preliminary mechanistic studies reveal that ethyl acetate serves as a proton source in the reaction.
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Affiliation(s)
- Fengxiang Zhu
- School of Chemistry and Chemical Engineering, Shanxi University, 92 Wucheng Rd S., Taiyuan, 030006, China
| | - Pengpeng Yin
- School of Chemistry and Chemical Engineering, Shanxi University, 92 Wucheng Rd S., Taiyuan, 030006, China
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6
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Vellakkaran M, Kim T, Hong S. Visible-Light-Induced C4-Selective Functionalization of Pyridinium Salts with Cyclopropanols. Angew Chem Int Ed Engl 2022; 61:e202113658. [PMID: 34734455 DOI: 10.1002/anie.202113658] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2021] [Indexed: 12/12/2022]
Abstract
The site-selective C-H functionalization of heteroarenes is of considerable importance for streamlining the rapid modification of bioactive molecules. Herein, we report a general strategy for visible-light-induced β-carbonyl alkylation at the C4 position of pyridines with high site selectivity using various cyclopropanols and N-amidopyridinium salts. In this process, hydrogen-atom transfer between the generated sulfonamidyl radicals and O-H bonds of cyclopropanols generates β-carbonyl radicals, providing efficient access to synthetically valuable β-pyridylated (aryl)ketones, aldehydes, and esters with broad functional-group tolerance. In addition, the mild method serves as an effective tool for the site-selective late-stage functionalization of complex and medicinally relevant molecules.
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Affiliation(s)
- Mari Vellakkaran
- Center for Catalytic Hydrocarbon Functionalizations, Institute for Basic Science (IBS).,Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, 34141, Republic of Korea
| | - Taehwan Kim
- Center for Catalytic Hydrocarbon Functionalizations, Institute for Basic Science (IBS).,Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, 34141, Republic of Korea
| | - Sungwoo Hong
- Center for Catalytic Hydrocarbon Functionalizations, Institute for Basic Science (IBS).,Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, 34141, Republic of Korea
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7
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Vellakkaran M, Kim T, Hong S. Visible‐Light‐Induced C4‐Selective Functionalization of Pyridinium Salts with Cyclopropanols. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202113658] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Mari Vellakkaran
- Center for Catalytic Hydrocarbon Functionalizations Institute for Basic Science (IBS)
- Department of Chemistry Korea Advanced Institute of Science and Technology (KAIST) Daejeon 34141 Republic of Korea
| | - Taehwan Kim
- Center for Catalytic Hydrocarbon Functionalizations Institute for Basic Science (IBS)
- Department of Chemistry Korea Advanced Institute of Science and Technology (KAIST) Daejeon 34141 Republic of Korea
| | - Sungwoo Hong
- Center for Catalytic Hydrocarbon Functionalizations Institute for Basic Science (IBS)
- Department of Chemistry Korea Advanced Institute of Science and Technology (KAIST) Daejeon 34141 Republic of Korea
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8
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Lu J, Tong Y, Hao N, Zhang L, Wei J, Zhang Z, Fu Q, Yi D, Wang J, Mu Y, Pan X, Yang L, Wei S, Zhong L. Photocatalytic redox-neutral arylation of cyclopropanols with cyanoarenes via radical-mediated C–C and C–CN bond cleavage. Org Chem Front 2022. [DOI: 10.1039/d1qo01844b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
β-arylated ketones widely exist in many biologically active molecules and natural products. Herein, we disrcibled a photocatalytic redox-neutral arylation of cyclopropanols with cyanoarenes via radical-mediated C–C and C–CN bond cleavage...
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9
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Jo W, Lee JH, Cho SH. Advances in transition metal-free deborylative transformations of gem-diborylalkanes. Chem Commun (Camb) 2021; 57:4346-4353. [PMID: 33949473 DOI: 10.1039/d1cc01048d] [Citation(s) in RCA: 32] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
Carbanions serve as key intermediates in a variety of chemical transformations. Particularly, α-borylcarbanions have received considerable attention in recent years because of their peculiar properties, including the ability of boron atom resonance to stabilise the adjacent negatively charged carbon atom. This feature article summarises recent progress in the synthetic utilisation of α-borylcarbanions, including carbon-carbon bond formation with alkyl halides, alkenes, N-heteroarenes, and carbonyls. Carbon-boron bond formation in organohalides mediated by α-borylcarbanions is also summarised.
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Affiliation(s)
- Woohyun Jo
- Department of Chemistry, Pohang University of Science and Technology, Pohang, Republic of Korea.
| | - Jun Hee Lee
- Department of Advanced Materials Chemistry, Dongguk University - Gyeongju Campus, Gyeongju, Gyeongsangbuk-do, Republic of Korea.
| | - Seung Hwan Cho
- Department of Chemistry, Pohang University of Science and Technology, Pohang, Republic of Korea.
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10
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Kim M, You E, Park S, Hong S. Divergent reactivity of sulfinates with pyridinium salts based on one- versus two-electron pathways. Chem Sci 2021; 12:6629-6637. [PMID: 34040737 PMCID: PMC8132931 DOI: 10.1039/d1sc00776a] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2021] [Accepted: 03/30/2021] [Indexed: 01/04/2023] Open
Abstract
One of the main goals of modern synthesis is to develop distinct reaction pathways from identical starting materials for the efficient synthesis of diverse compounds. Herein, we disclose the unique divergent reactivity of the combination sets of pyridinium salts and sulfinates to achieve sulfonative pyridylation of alkenes and direct C4-sulfonylation of pyridines by controlling the one- versus two-electron reaction manifolds for the selective formation of each product. Base-catalyzed cross-coupling between sulfinates and N-amidopyridinium salts led to the direct introduction of a sulfonyl group into the C4 position of pyridines. Remarkably, the reactivity of this set of compounds is completely altered upon exposure to visible light: electron donor-acceptor complexes of N-amidopyridinium salts and sulfinates are formed to enable access to sulfonyl radicals. In this catalyst-free radical pathway, both sulfonyl and pyridyl groups could be incorporated into alkenes via a three-component reaction, which provides facile access to a variety of β-pyridyl alkyl sulfones. These two reactions are orthogonal and complementary, achieving a broad substrate scope in a late-stage fashion under mild reaction conditions.
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Affiliation(s)
- Myojeong Kim
- Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST) Daejeon 34141 Korea
- Center for Catalytic Hydrocarbon Functionalizations, Institute for Basic Science (IBS) Daejeon 34141 Korea
| | - Euna You
- Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST) Daejeon 34141 Korea
- Center for Catalytic Hydrocarbon Functionalizations, Institute for Basic Science (IBS) Daejeon 34141 Korea
| | - Seongjin Park
- Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST) Daejeon 34141 Korea
- Center for Catalytic Hydrocarbon Functionalizations, Institute for Basic Science (IBS) Daejeon 34141 Korea
| | - Sungwoo Hong
- Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST) Daejeon 34141 Korea
- Center for Catalytic Hydrocarbon Functionalizations, Institute for Basic Science (IBS) Daejeon 34141 Korea
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11
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Kaur R, Mandal S, Banerjee D, Kumar Yadav A. Transition Metal Free
α
−C−H Functionalization of Six Membered Heteroaromatic‐
N
‐Oxides. ChemistrySelect 2021. [DOI: 10.1002/slct.202100319] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Affiliation(s)
- Ramandeep Kaur
- University Institute of Pharmaceutical Sciences Panjab University Chandigarh 160014 India
| | - Sudip Mandal
- Sudip Mandal Centre of Biomedical Research (CBMR) Lucknow India
| | - Debolina Banerjee
- University Institute of Pharmaceutical Sciences Panjab University Chandigarh 160014 India
| | - Ashok Kumar Yadav
- University Institute of Pharmaceutical Sciences Panjab University Chandigarh 160014 India
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12
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Shin S, Lee S, Choi W, Kim N, Hong S. Visible‐Light‐Induced 1,3‐Aminopyridylation of [1.1.1]Propellane with
N
‐Aminopyridinium Salts. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202016156] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Sanghoon Shin
- Department of Chemistry Korea Advanced Institute of Science and Technology (KAIST) Daejeon 34141 Republic of Korea
- Center for Catalytic Hydrocarbon Functionalizations Institute for Basic Science (IBS) Daejeon 34141 Republic of Korea
| | - Seojin Lee
- Department of Chemistry Korea Advanced Institute of Science and Technology (KAIST) Daejeon 34141 Republic of Korea
- Center for Catalytic Hydrocarbon Functionalizations Institute for Basic Science (IBS) Daejeon 34141 Republic of Korea
| | - Wonjun Choi
- Department of Chemistry Korea Advanced Institute of Science and Technology (KAIST) Daejeon 34141 Republic of Korea
- Center for Catalytic Hydrocarbon Functionalizations Institute for Basic Science (IBS) Daejeon 34141 Republic of Korea
| | - Namhoon Kim
- Department of Chemistry Korea Advanced Institute of Science and Technology (KAIST) Daejeon 34141 Republic of Korea
- Center for Catalytic Hydrocarbon Functionalizations Institute for Basic Science (IBS) Daejeon 34141 Republic of Korea
| | - Sungwoo Hong
- Department of Chemistry Korea Advanced Institute of Science and Technology (KAIST) Daejeon 34141 Republic of Korea
- Center for Catalytic Hydrocarbon Functionalizations Institute for Basic Science (IBS) Daejeon 34141 Republic of Korea
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13
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Kim M, Lee JH, Cho SH. Pd‐Catalyzed Negishi Cross‐Coupling of Vinyl Bromides with Diborylmethylzinc Chloride. B KOREAN CHEM SOC 2021. [DOI: 10.1002/bkcs.12212] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Minjae Kim
- Department of Chemistry Pohang University of Science and Technology (POSTECH) Pohang 37673 Republic of Korea
| | - Jun Hee Lee
- Department of Advanced Materials Chemistry Dongguk University Gyeongju Campus Gyeongju 38066 Republic of Korea
| | - Seung Hwan Cho
- Department of Chemistry Pohang University of Science and Technology (POSTECH) Pohang 37673 Republic of Korea
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14
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Shin S, Lee S, Choi W, Kim N, Hong S. Visible-Light-Induced 1,3-Aminopyridylation of [1.1.1]Propellane with N-Aminopyridinium Salts. Angew Chem Int Ed Engl 2021; 60:7873-7879. [PMID: 33403785 DOI: 10.1002/anie.202016156] [Citation(s) in RCA: 74] [Impact Index Per Article: 24.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2020] [Indexed: 01/16/2023]
Abstract
Through the formation of an electron donor-acceptor (EDA) complex, strain-release aminopyridylation of [1.1.1]propellane with N-aminopyridinium salts as bifunctional reagents enabled the direct installation of amino and pyridyl groups onto bicyclo[1.1.1]pentane (BCP) frameworks in the absence of an external photocatalyst. The robustness of this method to synthesize 1,3-aminopyridylated BCPs under mild and metal-free conditions is highlighted by the late-stage modification of structurally complex biorelevant molecules. Moreover, the strategy was extended to P-centered and CF3 radicals for the unprecedented incorporation of such functional groups with pyridine across the BCP core in a three-component coupling. This practical method lays the foundation for the straightforward construction of new valuable C4-pyridine-functionalized BCP chemical entities, thus significantly expanding the range of accessibility of BCP-type bioisosteres for applications in drug discovery.
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Affiliation(s)
- Sanghoon Shin
- Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, 34141, Republic of Korea.,Center for Catalytic Hydrocarbon Functionalizations, Institute for Basic Science (IBS), Daejeon, 34141, Republic of Korea
| | - Seojin Lee
- Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, 34141, Republic of Korea.,Center for Catalytic Hydrocarbon Functionalizations, Institute for Basic Science (IBS), Daejeon, 34141, Republic of Korea
| | - Wonjun Choi
- Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, 34141, Republic of Korea.,Center for Catalytic Hydrocarbon Functionalizations, Institute for Basic Science (IBS), Daejeon, 34141, Republic of Korea
| | - Namhoon Kim
- Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, 34141, Republic of Korea.,Center for Catalytic Hydrocarbon Functionalizations, Institute for Basic Science (IBS), Daejeon, 34141, Republic of Korea
| | - Sungwoo Hong
- Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, 34141, Republic of Korea.,Center for Catalytic Hydrocarbon Functionalizations, Institute for Basic Science (IBS), Daejeon, 34141, Republic of Korea
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15
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Ashraf MA, Tambe SD, Cho EJ. Diastereoselective Reductive Cyclization of
Allene‐Tethered
Ketoamines via
Copper‐Catalyzed
Cascade Carboboronation and Protodeborylation. B KOREAN CHEM SOC 2021. [DOI: 10.1002/bkcs.12241] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Affiliation(s)
- Muhammad Awais Ashraf
- Department of Chemistry Chung‐Ang University 84 Heukseok‐ro, Dongjak‐gu, Seoul 06974 Republic of Korea
| | - Shrikant D. Tambe
- Department of Chemistry Chung‐Ang University 84 Heukseok‐ro, Dongjak‐gu, Seoul 06974 Republic of Korea
| | - Eun Jin Cho
- Department of Chemistry Chung‐Ang University 84 Heukseok‐ro, Dongjak‐gu, Seoul 06974 Republic of Korea
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16
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Wu C, Bao Z, Dou B, Wang J. Generation of α-Boryl Radicals and Their Conjugate Addition to Enones: Transition-Metal-Free Alkylation of gem-Diborylalkanes. Chemistry 2021; 27:2294-2298. [PMID: 33064327 DOI: 10.1002/chem.202004581] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2020] [Indexed: 01/10/2023]
Abstract
A transition-metal-free method for the alkylation of gem-diborylalkanes with α,β-unsaturated ketones has been developed. It is demonstrated that the α-boryl radicals can be generated efficiently from gem-diborylalkanes with the aid of catechol and oxidants. The α-boryl radicals formed through such process can be engaged in conjugate addition reaction with α,β-unsaturated ketones. This transformation is a straightforward method for the synthesis of γ-borylketones.
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Affiliation(s)
- Chaoqiang Wu
- Beijing National Laboratory of Molecular Sciences (BNLMS), Key Laboratory of Bioorganic Chemistry and Molecular Engineering of, Ministry of Education, College of Chemistry, Peking University, Beijing, 100871, P. R. China
| | - Zhicheng Bao
- Beijing National Laboratory of Molecular Sciences (BNLMS), Key Laboratory of Bioorganic Chemistry and Molecular Engineering of, Ministry of Education, College of Chemistry, Peking University, Beijing, 100871, P. R. China
| | - Bowen Dou
- Beijing National Laboratory of Molecular Sciences (BNLMS), Key Laboratory of Bioorganic Chemistry and Molecular Engineering of, Ministry of Education, College of Chemistry, Peking University, Beijing, 100871, P. R. China
| | - Jianbo Wang
- Beijing National Laboratory of Molecular Sciences (BNLMS), Key Laboratory of Bioorganic Chemistry and Molecular Engineering of, Ministry of Education, College of Chemistry, Peking University, Beijing, 100871, P. R. China
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17
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Kim M, Park B, Shin M, Kim S, Kim J, Baik MH, Cho SH. Copper-Catalyzed Enantiotopic-Group-Selective Allylation of gem-Diborylalkanes. J Am Chem Soc 2021; 143:1069-1077. [DOI: 10.1021/jacs.0c11750] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Minjae Kim
- Department of Chemistry, Pohang University of Science and Technology (POSTECH), Pohang 37673, Republic of Korea
| | - Bohyun Park
- Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Republic of Korea
- Center for Catalytic Hydrocarbon Functionalizations, Institute for Basic Science (IBS), Daejeon 34141, Republic of Korea
| | - Minkyeong Shin
- Department of Chemistry, Pohang University of Science and Technology (POSTECH), Pohang 37673, Republic of Korea
| | - Suyeon Kim
- Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Republic of Korea
- Center for Catalytic Hydrocarbon Functionalizations, Institute for Basic Science (IBS), Daejeon 34141, Republic of Korea
| | - Junghoon Kim
- Department of Chemistry, Pohang University of Science and Technology (POSTECH), Pohang 37673, Republic of Korea
| | - Mu-Hyun Baik
- Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Republic of Korea
- Center for Catalytic Hydrocarbon Functionalizations, Institute for Basic Science (IBS), Daejeon 34141, Republic of Korea
| | - Seung Hwan Cho
- Department of Chemistry, Pohang University of Science and Technology (POSTECH), Pohang 37673, Republic of Korea
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18
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Li X, Gao G, He S, Song Q. Copper-catalyzed 1,6-conjugate addition of para-quinone methides with diborylmethane. Org Chem Front 2021. [DOI: 10.1039/d1qo00632k] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
Presented herein is the first 1,6-conjugate addition of diborylmethane. This reaction features high yields, mild reaction conditions, and broad functional group compatibilities.
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Affiliation(s)
- Xin Li
- Institute of Next Generation Matter Transformation
- College of Materials Science & Engineering
- Huaqiao University
- Xiamen 361021
- China
| | - Guoliang Gao
- Institute of Next Generation Matter Transformation
- College of Materials Science & Engineering
- Huaqiao University
- Xiamen 361021
- China
| | - Songtao He
- Institute of Next Generation Matter Transformation
- College of Materials Science & Engineering
- Huaqiao University
- Xiamen 361021
- China
| | - Qiuling Song
- Institute of Next Generation Matter Transformation
- College of Materials Science & Engineering
- Huaqiao University
- Xiamen 361021
- China
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19
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Recent Advances in the Synthesis of C2‐Functionalized Pyridines and Quinolines Using
N
‐Oxide Chemistry. Adv Synth Catal 2020. [DOI: 10.1002/adsc.202000910] [Citation(s) in RCA: 42] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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20
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Takeda M, Nagao K, Ohmiya H. Transition‐Metal‐Free Cross‐Coupling by Using Tertiary Benzylic Organoboronates. Angew Chem Int Ed Engl 2020; 59:22460-22464. [DOI: 10.1002/anie.202010251] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2020] [Indexed: 12/21/2022]
Affiliation(s)
- Mitsutaka Takeda
- Division of Pharmaceutical Sciences Graduate School of Medical Sciences Kanazawa University Kakuma-machi Kanazawa 920-1192 Japan
| | - Kazunori Nagao
- Division of Pharmaceutical Sciences Graduate School of Medical Sciences Kanazawa University Kakuma-machi Kanazawa 920-1192 Japan
| | - Hirohisa Ohmiya
- Division of Pharmaceutical Sciences Graduate School of Medical Sciences Kanazawa University Kakuma-machi Kanazawa 920-1192 Japan
- JST PRESTO 4-1-8 Honcho Kawaguchi Saitama 332-0012 Japan
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21
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Takeda M, Nagao K, Ohmiya H. Transition‐Metal‐Free Cross‐Coupling by Using Tertiary Benzylic Organoboronates. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202010251] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Mitsutaka Takeda
- Division of Pharmaceutical Sciences Graduate School of Medical Sciences Kanazawa University Kakuma-machi Kanazawa 920-1192 Japan
| | - Kazunori Nagao
- Division of Pharmaceutical Sciences Graduate School of Medical Sciences Kanazawa University Kakuma-machi Kanazawa 920-1192 Japan
| | - Hirohisa Ohmiya
- Division of Pharmaceutical Sciences Graduate School of Medical Sciences Kanazawa University Kakuma-machi Kanazawa 920-1192 Japan
- JST PRESTO 4-1-8 Honcho Kawaguchi Saitama 332-0012 Japan
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22
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Sato Y, Nakamura K, Yabushita K, Nagao K, Ohmiya H. Tertiary Alkylations of Aldehydes, Ketones or Imines Using Benzylic Organoboronates and a Base Catalyst. BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN 2020. [DOI: 10.1246/bcsj.20200122] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Yukiya Sato
- Division of Pharmaceutical Sciences, Graduate School of Medical Sciences, Kanazawa University, Kakuma-machi, Kanazawa, Ishikawa 920-1192, Japan
| | - Kei Nakamura
- Division of Pharmaceutical Sciences, Graduate School of Medical Sciences, Kanazawa University, Kakuma-machi, Kanazawa, Ishikawa 920-1192, Japan
| | - Kenya Yabushita
- Division of Pharmaceutical Sciences, Graduate School of Medical Sciences, Kanazawa University, Kakuma-machi, Kanazawa, Ishikawa 920-1192, Japan
| | - Kazunori Nagao
- Division of Pharmaceutical Sciences, Graduate School of Medical Sciences, Kanazawa University, Kakuma-machi, Kanazawa, Ishikawa 920-1192, Japan
| | - Hirohisa Ohmiya
- Division of Pharmaceutical Sciences, Graduate School of Medical Sciences, Kanazawa University, Kakuma-machi, Kanazawa, Ishikawa 920-1192, Japan
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23
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Jo W, Baek SY, Hwang C, Heo J, Baik MH, Cho SH. ZnMe2-Mediated, Direct Alkylation of Electron-Deficient N-Heteroarenes with 1,1-Diborylalkanes: Scope and Mechanism. J Am Chem Soc 2020; 142:13235-13245. [DOI: 10.1021/jacs.0c06827] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Woohyun Jo
- Department of Chemistry, Pohang University of Science and Technology (POSTECH), Pohang, 37673, Republic of Korea
| | - Seung-yeol Baek
- Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, 34141, Republic of Korea
- Center for Catalytic Hydrocarbon Functionalizations, Institute for Basic Science (IBS), Daejeon, 34141, Republic of Korea
| | - Chiwon Hwang
- Department of Chemistry, Pohang University of Science and Technology (POSTECH), Pohang, 37673, Republic of Korea
| | - Joon Heo
- Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, 34141, Republic of Korea
- Center for Catalytic Hydrocarbon Functionalizations, Institute for Basic Science (IBS), Daejeon, 34141, Republic of Korea
| | - Mu-Hyun Baik
- Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, 34141, Republic of Korea
- Center for Catalytic Hydrocarbon Functionalizations, Institute for Basic Science (IBS), Daejeon, 34141, Republic of Korea
| | - Seung Hwan Cho
- Department of Chemistry, Pohang University of Science and Technology (POSTECH), Pohang, 37673, Republic of Korea
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24
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Jung S, Lee H, Moon Y, Jung HY, Hong S. Site-Selective C–H Acylation of Pyridinium Derivatives by Photoredox Catalysis. ACS Catal 2019. [DOI: 10.1021/acscatal.9b03367] [Citation(s) in RCA: 53] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Sungwoo Jung
- Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Korea
- Center for Catalytic Hydrocarbon Functionalizations, Institute for Basic Science (IBS), Daejeon 34141, Korea
| | - Hyeonyeong Lee
- Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Korea
- Center for Catalytic Hydrocarbon Functionalizations, Institute for Basic Science (IBS), Daejeon 34141, Korea
| | - Yonghoon Moon
- Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Korea
- Center for Catalytic Hydrocarbon Functionalizations, Institute for Basic Science (IBS), Daejeon 34141, Korea
| | - Hoi-Yun Jung
- Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Korea
- Center for Catalytic Hydrocarbon Functionalizations, Institute for Basic Science (IBS), Daejeon 34141, Korea
| | - Sungwoo Hong
- Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Korea
- Center for Catalytic Hydrocarbon Functionalizations, Institute for Basic Science (IBS), Daejeon 34141, Korea
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25
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Ghosh P, Kwon NY, Han S, Kim S, Han SH, Mishra NK, Jung YH, Chung SJ, Kim IS. Site-Selective C-H Alkylation of Diazine N-Oxides Enabled by Phosphonium Ylides. Org Lett 2019; 21:6488-6493. [PMID: 31373494 DOI: 10.1021/acs.orglett.9b02365] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
The synthesis of alkylated diazine derivatives is important for their practical utilization as pharmaceuticals and for other purposes. Herein, we describe the metal-free site-selective C-H alkylation of diazine N-oxides using phosphonium ylides that affords a variety of alkylated diazine derivatives with broad functional group tolerance. The utility of this method is showcased by the late-stage functionalization of a commercially available drug such as varenicline. Notably, the sequential C-H alkylation of pyrazine N-oxides for the total synthesis of a pyrazine-containing natural product, paenibacillin A, highlights the importance of this method.
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Affiliation(s)
- Prithwish Ghosh
- School of Pharmacy , Sungkyunkwan University , Suwon 16419 , Republic of Korea
| | - Na Yeon Kwon
- School of Pharmacy , Sungkyunkwan University , Suwon 16419 , Republic of Korea
| | - Sangil Han
- School of Pharmacy , Sungkyunkwan University , Suwon 16419 , Republic of Korea
| | - Saegun Kim
- School of Pharmacy , Sungkyunkwan University , Suwon 16419 , Republic of Korea
| | - Sang Hoon Han
- School of Pharmacy , Sungkyunkwan University , Suwon 16419 , Republic of Korea
| | - Neeraj Kumar Mishra
- School of Pharmacy , Sungkyunkwan University , Suwon 16419 , Republic of Korea
| | - Young Hoon Jung
- School of Pharmacy , Sungkyunkwan University , Suwon 16419 , Republic of Korea
| | - Sang J Chung
- School of Pharmacy , Sungkyunkwan University , Suwon 16419 , Republic of Korea
| | - In Su Kim
- School of Pharmacy , Sungkyunkwan University , Suwon 16419 , Republic of Korea
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26
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Kim J, Lee E, Cho SH. Chemoselective Palladium‐Catalyzed Suzuki‐Miyaura Cross‐Coupling of (Diborylmethyl)silanes with Alkenyl Bromides. ASIAN J ORG CHEM 2019. [DOI: 10.1002/ajoc.201900328] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Junghoon Kim
- Department of ChemistryPohang University of Science and Technology (POSTECH) Address Pohang 37673 Republic of Korea
| | - Eunsung Lee
- Department of ChemistryPohang University of Science and Technology (POSTECH) Address Pohang 37673 Republic of Korea
| | - Seung Hwan Cho
- Department of ChemistryPohang University of Science and Technology (POSTECH) Address Pohang 37673 Republic of Korea
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27
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Evano G, Theunissen C. Beyond Friedel and Crafts: Innate Alkylation of C−H Bonds in Arenes. Angew Chem Int Ed Engl 2019; 58:7558-7598. [DOI: 10.1002/anie.201806631] [Citation(s) in RCA: 61] [Impact Index Per Article: 12.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2018] [Indexed: 12/28/2022]
Affiliation(s)
- Gwilherm Evano
- Laboratoire de Chimie Organique, Service de Chimie et Physico-Chimie OrganiquesUniversité libre de Bruxelles (ULB) Avenue F.D. Roosevelt 50, CP160/06 1050 Brussels Belgium
| | - Cédric Theunissen
- Laboratoire de Chimie Organique, Service de Chimie et Physico-Chimie OrganiquesUniversité libre de Bruxelles (ULB) Avenue F.D. Roosevelt 50, CP160/06 1050 Brussels Belgium
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28
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Kim I, Kang G, Lee K, Park B, Kang D, Jung H, He YT, Baik MH, Hong S. Site-Selective Functionalization of Pyridinium Derivatives via Visible-Light-Driven Photocatalysis with Quinolinone. J Am Chem Soc 2019; 141:9239-9248. [DOI: 10.1021/jacs.9b02013] [Citation(s) in RCA: 71] [Impact Index Per Article: 14.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Inwon Kim
- Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Korea
- Center for Catalytic Hydrocarbon Functionalizations, Institute for Basic Science (IBS), Daejeon 34141, Korea
| | - Gyumin Kang
- Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Korea
- Center for Catalytic Hydrocarbon Functionalizations, Institute for Basic Science (IBS), Daejeon 34141, Korea
| | - Kangjae Lee
- Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Korea
- Center for Catalytic Hydrocarbon Functionalizations, Institute for Basic Science (IBS), Daejeon 34141, Korea
| | - Bohyun Park
- Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Korea
- Center for Catalytic Hydrocarbon Functionalizations, Institute for Basic Science (IBS), Daejeon 34141, Korea
| | - Dahye Kang
- Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Korea
- Center for Catalytic Hydrocarbon Functionalizations, Institute for Basic Science (IBS), Daejeon 34141, Korea
| | - Hoimin Jung
- Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Korea
- Center for Catalytic Hydrocarbon Functionalizations, Institute for Basic Science (IBS), Daejeon 34141, Korea
| | - Yu-Tao He
- Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Korea
- Center for Catalytic Hydrocarbon Functionalizations, Institute for Basic Science (IBS), Daejeon 34141, Korea
| | - Mu-Hyun Baik
- Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Korea
- Center for Catalytic Hydrocarbon Functionalizations, Institute for Basic Science (IBS), Daejeon 34141, Korea
| | - Sungwoo Hong
- Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Korea
- Center for Catalytic Hydrocarbon Functionalizations, Institute for Basic Science (IBS), Daejeon 34141, Korea
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29
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Kumar N, Reddy RR, Masarwa A. Stereoselective Desymmetrization of
gem
‐Diborylalkanes by “Trifluorination”. Chemistry 2019; 25:8008-8012. [DOI: 10.1002/chem.201901267] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2019] [Revised: 04/08/2019] [Indexed: 12/15/2022]
Affiliation(s)
- Nivesh Kumar
- Institute of ChemistryThe Hebrew University of Jerusalem Edmond J. Safra Campus Jerusalem 9190401 Israel
| | - Reddy Rajasekhar Reddy
- Institute of ChemistryThe Hebrew University of Jerusalem Edmond J. Safra Campus Jerusalem 9190401 Israel
| | - Ahmad Masarwa
- Institute of ChemistryThe Hebrew University of Jerusalem Edmond J. Safra Campus Jerusalem 9190401 Israel
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30
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Evano G, Theunissen C. Jenseits von Friedel und Crafts: immanente Alkylierung von C‐H‐Bindungen in Arenen. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201806631] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Affiliation(s)
- Gwilherm Evano
- Laboratoire de Chimie Organique, Service de Chimie et Physico-Chimie OrganiquesUniversité libre de Bruxelles (ULB) Avenue F. D. Roosevelt 50, CP160/06 1050 Brüssel Belgien
| | - Cédric Theunissen
- Laboratoire de Chimie Organique, Service de Chimie et Physico-Chimie OrganiquesUniversité libre de Bruxelles (ULB) Avenue F. D. Roosevelt 50, CP160/06 1050 Brüssel Belgien
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31
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Zheng P, Zhai Y, Zhao X, Xu T. Palladium-Catalyzed Cross-Coupling of gem-Bis(boronates) with Aryl Halides: An Alternative To Access Quaternary α-Aryl Aldehydes. Org Lett 2019; 21:393-396. [PMID: 30592427 DOI: 10.1021/acs.orglett.8b03560] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
The compounds with a quaternary α-aryl aldehyde skeleton are important units in organic chemistry. Previously, the aryl group and carbonyl group are introduced in a stepwise manner. Herein, a novel route is developed to construct the quaternary α-aryl aldehydes with gem-bis(boronates) as precursors, in which the two groups are installed simultaneously. The gem-bis(boronates) are readily available from ketones; as a result, this methodology provides a more general strategy to produce the quaternary α-aryl aldehydes with broad scopes and synthetic convenience.
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Affiliation(s)
- Purui Zheng
- Shanghai Key Laboratory of Chemical Assessment and Sustainability, School of Chemical Science and Engineering , Tongji University , 1239 Siping Road , Shanghai , 200092 , P. R. of China
| | - Yujie Zhai
- Shanghai Key Laboratory of Chemical Assessment and Sustainability, School of Chemical Science and Engineering , Tongji University , 1239 Siping Road , Shanghai , 200092 , P. R. of China
| | - Xiaoming Zhao
- Shanghai Key Laboratory of Chemical Assessment and Sustainability, School of Chemical Science and Engineering , Tongji University , 1239 Siping Road , Shanghai , 200092 , P. R. of China
| | - Tao Xu
- Shanghai Key Laboratory of Chemical Assessment and Sustainability, School of Chemical Science and Engineering , Tongji University , 1239 Siping Road , Shanghai , 200092 , P. R. of China
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32
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He Z, Zhu Q, Hu X, Wang L, Xia C, Liu C. Cooperation between an alcoholic proton and boryl species in the catalytic gem-hydrodiborylation of carboxylic esters to access 1,1-diborylalkanes. Org Chem Front 2019. [DOI: 10.1039/c9qo00007k] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
Cooperation between an alcoholic proton and boryl species in the selective gem-hydrodiborylation of carboxylic esters is described.
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Affiliation(s)
- Zeyu He
- State Key Laboratory for Oxo Synthesis and Selective Oxidation
- Suzhou Research Institute of LICP
- Lanzhou Institute of Chemical Physics (LICP)
- Chinese Academy of Sciences
- Lanzhou 730000
| | - Qing Zhu
- State Key Laboratory for Oxo Synthesis and Selective Oxidation
- Suzhou Research Institute of LICP
- Lanzhou Institute of Chemical Physics (LICP)
- Chinese Academy of Sciences
- Lanzhou 730000
| | - Xiyu Hu
- State Key Laboratory for Oxo Synthesis and Selective Oxidation
- Suzhou Research Institute of LICP
- Lanzhou Institute of Chemical Physics (LICP)
- Chinese Academy of Sciences
- Lanzhou 730000
| | - Lu Wang
- State Key Laboratory for Oxo Synthesis and Selective Oxidation
- Suzhou Research Institute of LICP
- Lanzhou Institute of Chemical Physics (LICP)
- Chinese Academy of Sciences
- Lanzhou 730000
| | - Chungu Xia
- State Key Laboratory for Oxo Synthesis and Selective Oxidation
- Suzhou Research Institute of LICP
- Lanzhou Institute of Chemical Physics (LICP)
- Chinese Academy of Sciences
- Lanzhou 730000
| | - Chao Liu
- State Key Laboratory for Oxo Synthesis and Selective Oxidation
- Suzhou Research Institute of LICP
- Lanzhou Institute of Chemical Physics (LICP)
- Chinese Academy of Sciences
- Lanzhou 730000
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33
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Chen Y. Recent Advances in Methylation: A Guide for Selecting Methylation Reagents. Chemistry 2018; 25:3405-3439. [DOI: 10.1002/chem.201803642] [Citation(s) in RCA: 119] [Impact Index Per Article: 19.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2018] [Indexed: 11/10/2022]
Affiliation(s)
- Yantao Chen
- Medicinal Chemistry, Cardiovascular, Renal and Metabolism, IMED Biotech UnitAstraZeneca Gothenburg Sweden
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34
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Kim KD, Lee JH. Visible-Light Photocatalyzed Deoxygenation of N-Heterocyclic N-Oxides. Org Lett 2018; 20:7712-7716. [DOI: 10.1021/acs.orglett.8b03446] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Kyu Dong Kim
- Department of Advanced Materials Chemistry, Dongguk University, Gyeongju 38066, Republic of Korea
| | - Jun Hee Lee
- Department of Advanced Materials Chemistry, Dongguk University, Gyeongju 38066, Republic of Korea
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35
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Han S, Chakrasali P, Park J, Oh H, Kim S, Kim K, Pandey AK, Han SH, Han SB, Kim IS. Reductive C2-Alkylation of Pyridine and Quinoline N
-Oxides Using Wittig Reagents. Angew Chem Int Ed Engl 2018; 57:12737-12740. [DOI: 10.1002/anie.201807159] [Citation(s) in RCA: 56] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2018] [Indexed: 11/11/2022]
Affiliation(s)
- Sangil Han
- School of Pharmacy; Sungkyunkwan University; Suwon 16419 Republic of Korea
| | - Prashant Chakrasali
- Bio and Drug Discovery Division; Korea Research Institute of Chemical Technology; Daejeon 34114 Republic of Korea
- Department of Medicinal and Pharmaceutical Chemistry; University of Science and Technology; Daejeon 34113 Republic of Korea
| | - Jihye Park
- School of Pharmacy; Sungkyunkwan University; Suwon 16419 Republic of Korea
| | - Hyunjung Oh
- School of Pharmacy; Sungkyunkwan University; Suwon 16419 Republic of Korea
| | - Saegun Kim
- School of Pharmacy; Sungkyunkwan University; Suwon 16419 Republic of Korea
| | - Kyuneun Kim
- Bio and Drug Discovery Division; Korea Research Institute of Chemical Technology; Daejeon 34114 Republic of Korea
- Department of Medicinal and Pharmaceutical Chemistry; University of Science and Technology; Daejeon 34113 Republic of Korea
| | - Ashok Kumar Pandey
- School of Pharmacy; Sungkyunkwan University; Suwon 16419 Republic of Korea
| | - Sang Hoon Han
- School of Pharmacy; Sungkyunkwan University; Suwon 16419 Republic of Korea
| | - Soo Bong Han
- Bio and Drug Discovery Division; Korea Research Institute of Chemical Technology; Daejeon 34114 Republic of Korea
- Department of Medicinal and Pharmaceutical Chemistry; University of Science and Technology; Daejeon 34113 Republic of Korea
| | - In Su Kim
- School of Pharmacy; Sungkyunkwan University; Suwon 16419 Republic of Korea
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36
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Han S, Chakrasali P, Park J, Oh H, Kim S, Kim K, Pandey AK, Han SH, Han SB, Kim IS. Reductive C2-Alkylation of Pyridine and Quinoline N
-Oxides Using Wittig Reagents. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201807159] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Sangil Han
- School of Pharmacy; Sungkyunkwan University; Suwon 16419 Republic of Korea
| | - Prashant Chakrasali
- Bio and Drug Discovery Division; Korea Research Institute of Chemical Technology; Daejeon 34114 Republic of Korea
- Department of Medicinal and Pharmaceutical Chemistry; University of Science and Technology; Daejeon 34113 Republic of Korea
| | - Jihye Park
- School of Pharmacy; Sungkyunkwan University; Suwon 16419 Republic of Korea
| | - Hyunjung Oh
- School of Pharmacy; Sungkyunkwan University; Suwon 16419 Republic of Korea
| | - Saegun Kim
- School of Pharmacy; Sungkyunkwan University; Suwon 16419 Republic of Korea
| | - Kyuneun Kim
- Bio and Drug Discovery Division; Korea Research Institute of Chemical Technology; Daejeon 34114 Republic of Korea
- Department of Medicinal and Pharmaceutical Chemistry; University of Science and Technology; Daejeon 34113 Republic of Korea
| | - Ashok Kumar Pandey
- School of Pharmacy; Sungkyunkwan University; Suwon 16419 Republic of Korea
| | - Sang Hoon Han
- School of Pharmacy; Sungkyunkwan University; Suwon 16419 Republic of Korea
| | - Soo Bong Han
- Bio and Drug Discovery Division; Korea Research Institute of Chemical Technology; Daejeon 34114 Republic of Korea
- Department of Medicinal and Pharmaceutical Chemistry; University of Science and Technology; Daejeon 34113 Republic of Korea
| | - In Su Kim
- School of Pharmacy; Sungkyunkwan University; Suwon 16419 Republic of Korea
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37
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Teo WJ, Ge S. Cobalt-Catalyzed Enantioselective Synthesis of Chiral gem
-Bis(boryl)alkanes. Angew Chem Int Ed Engl 2018; 57:12935-12939. [DOI: 10.1002/anie.201805705] [Citation(s) in RCA: 38] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2018] [Revised: 06/21/2018] [Indexed: 11/08/2022]
Affiliation(s)
- Wei Jie Teo
- Department of Chemistry; National University of Singapore; 3 Science Drive 3 Singapore 117543 Singapore
| | - Shaozhong Ge
- Department of Chemistry; National University of Singapore; 3 Science Drive 3 Singapore 117543 Singapore
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38
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Teo WJ, Ge S. Cobalt-Catalyzed Enantioselective Synthesis of Chiral gem
-Bis(boryl)alkanes. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201805705] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Wei Jie Teo
- Department of Chemistry; National University of Singapore; 3 Science Drive 3 Singapore 117543 Singapore
| | - Shaozhong Ge
- Department of Chemistry; National University of Singapore; 3 Science Drive 3 Singapore 117543 Singapore
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39
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Affiliation(s)
- Qi Huang
- Laboratoire de Synthèse Organique, CNRS UMR 7652 Ecole Polytechnique, Palaiseau, 91128 Cedex, France
| | - Samir Z. Zard
- Laboratoire de Synthèse Organique, CNRS UMR 7652 Ecole Polytechnique, Palaiseau, 91128 Cedex, France
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40
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Lee Y, Park J, Cho SH. Generation and Application of (Diborylmethyl)zinc(II) Species: Access to Enantioenriched gem
-Diborylalkanes by an Asymmetric Allylic Substitution. Angew Chem Int Ed Engl 2018; 57:12930-12934. [DOI: 10.1002/anie.201805476] [Citation(s) in RCA: 46] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2018] [Indexed: 12/17/2022]
Affiliation(s)
- Yeosan Lee
- Department of Chemistry; Pohang University of Science and Technology (POSTECH); Pohang 37673 Rep. of Korea
| | - Jinyoung Park
- Department of Chemistry; Pohang University of Science and Technology (POSTECH); Pohang 37673 Rep. of Korea
| | - Seung Hwan Cho
- Department of Chemistry; Pohang University of Science and Technology (POSTECH); Pohang 37673 Rep. of Korea
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41
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Lee Y, Park J, Cho SH. Generation and Application of (Diborylmethyl)zinc(II) Species: Access to Enantioenriched gem
-Diborylalkanes by an Asymmetric Allylic Substitution. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201805476] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Yeosan Lee
- Department of Chemistry; Pohang University of Science and Technology (POSTECH); Pohang 37673 Rep. of Korea
| | - Jinyoung Park
- Department of Chemistry; Pohang University of Science and Technology (POSTECH); Pohang 37673 Rep. of Korea
| | - Seung Hwan Cho
- Department of Chemistry; Pohang University of Science and Technology (POSTECH); Pohang 37673 Rep. of Korea
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42
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43
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Sun W, Wang L, Xia C, Liu C. Dual Functionalization of α-Monoboryl Carbanions through Deoxygenative Enolization with Carboxylic Acids. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201801679] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Affiliation(s)
- Wei Sun
- State Key Laboratory for Oxo Synthesis and Selective Oxidation; Suzhou Research Institute of LICP, Lanzhou Institute of Chemical Physics (LICP); Chinese Academy of Sciences; Lanzhou 730000 P. R. China
- University of Chinese Academy of Sciences; Beijing 100049 China
| | - Lu Wang
- State Key Laboratory for Oxo Synthesis and Selective Oxidation; Suzhou Research Institute of LICP, Lanzhou Institute of Chemical Physics (LICP); Chinese Academy of Sciences; Lanzhou 730000 P. R. China
| | - Chungu Xia
- State Key Laboratory for Oxo Synthesis and Selective Oxidation; Suzhou Research Institute of LICP, Lanzhou Institute of Chemical Physics (LICP); Chinese Academy of Sciences; Lanzhou 730000 P. R. China
| | - Chao Liu
- State Key Laboratory for Oxo Synthesis and Selective Oxidation; Suzhou Research Institute of LICP, Lanzhou Institute of Chemical Physics (LICP); Chinese Academy of Sciences; Lanzhou 730000 P. R. China
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44
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Sun W, Wang L, Xia C, Liu C. Dual Functionalization of α-Monoboryl Carbanions through Deoxygenative Enolization with Carboxylic Acids. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/anie.201801679] [Citation(s) in RCA: 43] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Wei Sun
- State Key Laboratory for Oxo Synthesis and Selective Oxidation; Suzhou Research Institute of LICP, Lanzhou Institute of Chemical Physics (LICP); Chinese Academy of Sciences; Lanzhou 730000 P. R. China
- University of Chinese Academy of Sciences; Beijing 100049 China
| | - Lu Wang
- State Key Laboratory for Oxo Synthesis and Selective Oxidation; Suzhou Research Institute of LICP, Lanzhou Institute of Chemical Physics (LICP); Chinese Academy of Sciences; Lanzhou 730000 P. R. China
| | - Chungu Xia
- State Key Laboratory for Oxo Synthesis and Selective Oxidation; Suzhou Research Institute of LICP, Lanzhou Institute of Chemical Physics (LICP); Chinese Academy of Sciences; Lanzhou 730000 P. R. China
| | - Chao Liu
- State Key Laboratory for Oxo Synthesis and Selective Oxidation; Suzhou Research Institute of LICP, Lanzhou Institute of Chemical Physics (LICP); Chinese Academy of Sciences; Lanzhou 730000 P. R. China
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45
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Zhou W, Miura T, Murakami M. Photocatalyzed ortho-Alkylation of Pyridine N-Oxides through Alkene Cleavage. Angew Chem Int Ed Engl 2018; 57:5139-5142. [PMID: 29508912 DOI: 10.1002/anie.201801305] [Citation(s) in RCA: 68] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2018] [Revised: 02/23/2018] [Indexed: 11/09/2022]
Abstract
A photocatalyzed reaction of pyridine N-oxides with alkenes gives ortho-alkylated pyridines with cleavage of the carbon-carbon double bond. Benzyl and secondary alkyl groups are incorporated at the ortho position of pyridines in one pot.
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Affiliation(s)
- Wang Zhou
- Department of Synthetic Chemistry and Biological Chemistry, Kyoto University, Katsura, Kyoto, 615-8510, Japan
| | - Tomoya Miura
- Department of Synthetic Chemistry and Biological Chemistry, Kyoto University, Katsura, Kyoto, 615-8510, Japan
| | - Masahiro Murakami
- Department of Synthetic Chemistry and Biological Chemistry, Kyoto University, Katsura, Kyoto, 615-8510, Japan
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46
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Zhou W, Miura T, Murakami M. Photocatalyzed
ortho
‐Alkylation of Pyridine
N
‐Oxides through Alkene Cleavage. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201801305] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Wang Zhou
- Department of Synthetic Chemistry and Biological Chemistry Kyoto University Katsura Kyoto 615-8510 Japan
| | - Tomoya Miura
- Department of Synthetic Chemistry and Biological Chemistry Kyoto University Katsura Kyoto 615-8510 Japan
| | - Masahiro Murakami
- Department of Synthetic Chemistry and Biological Chemistry Kyoto University Katsura Kyoto 615-8510 Japan
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47
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Wang D, Shen M, Wang Y, Hu J, Zhao J, Yu P. Access to Furo[2,3‐
b
]pyridines by Transition‐Metal‐Free Intramolecular Cyclization of C3‐substituted Pyridine
N
‐oxides. ASIAN J ORG CHEM 2018. [DOI: 10.1002/ajoc.201800082] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Dong Wang
- China International Science and Technology Cooperation Base of Food Nutrition/Safety and Medicinal Chemistry, College of BiotechnologyTianjin University of Science and Technology No. 29, 13th Avenue, TEDA Tianjin 300457 China
| | - Meng Shen
- China International Science and Technology Cooperation Base of Food Nutrition/Safety and Medicinal Chemistry, College of BiotechnologyTianjin University of Science and Technology No. 29, 13th Avenue, TEDA Tianjin 300457 China
| | - Yuxi Wang
- China International Science and Technology Cooperation Base of Food Nutrition/Safety and Medicinal Chemistry, College of BiotechnologyTianjin University of Science and Technology No. 29, 13th Avenue, TEDA Tianjin 300457 China
| | - Jianyong Hu
- China International Science and Technology Cooperation Base of Food Nutrition/Safety and Medicinal Chemistry, College of BiotechnologyTianjin University of Science and Technology No. 29, 13th Avenue, TEDA Tianjin 300457 China
| | - Junjie Zhao
- China International Science and Technology Cooperation Base of Food Nutrition/Safety and Medicinal Chemistry, College of BiotechnologyTianjin University of Science and Technology No. 29, 13th Avenue, TEDA Tianjin 300457 China
| | - Peng Yu
- China International Science and Technology Cooperation Base of Food Nutrition/Safety and Medicinal Chemistry, College of BiotechnologyTianjin University of Science and Technology No. 29, 13th Avenue, TEDA Tianjin 300457 China
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48
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Cobalt-Catalyzed Diborylation of 1,1-disubstituted Vinylarenes: A Practical Route to Branched gem
-Bis(boryl)alkanes. Angew Chem Int Ed Engl 2018; 57:1654-1658. [DOI: 10.1002/anie.201710389] [Citation(s) in RCA: 47] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2017] [Revised: 11/09/2017] [Indexed: 01/21/2023]
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49
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Teo WJ, Ge S. Cobalt-Catalyzed Diborylation of 1,1-disubstituted Vinylarenes: A Practical Route to Branched gem
-Bis(boryl)alkanes. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201710389] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Wei Jie Teo
- Department of Chemistry; National University of Singapore; 3 Science Drive 3 Singapore 117543 Singapore
| | - Shaozhong Ge
- Department of Chemistry; National University of Singapore; 3 Science Drive 3 Singapore 117543 Singapore
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50
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Sen C, Ghosh SC. Transition-Metal-Free Regioselective Alkylation of Quinoline N-Oxides via Oxidative Alkyl Migration and C−C Bond Cleavage of tert-/sec-Alcohols. Adv Synth Catal 2018. [DOI: 10.1002/adsc.201701330] [Citation(s) in RCA: 36] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Affiliation(s)
- Chiranjit Sen
- Natural Products and Green Chemistry Division and AcSIR; Central Salt and Marine Chemicals Research Institute (CSIR-CSMCRI), G.B. Marg; Bhavnagar- 364002 Gujarat, India
| | - Subhash C. Ghosh
- Natural Products and Green Chemistry Division and AcSIR; Central Salt and Marine Chemicals Research Institute (CSIR-CSMCRI), G.B. Marg; Bhavnagar- 364002 Gujarat, India
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