1
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Yang JF, Liu YF, Wei LL, Qiao KK, Zhao YQ, Shi L. Minisci-Type Dehydrogenative Coupling of N-Heteroaromatic Rings with Inert C(sp 3)-H Enabled by a Visible-Light-Catalyzed Intermolecular Hydrogen Atom Transfer Process. J Org Chem 2024; 89:4249-4260. [PMID: 38443760 DOI: 10.1021/acs.joc.4c00093] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/07/2024]
Abstract
The Minisci-type dehydrogenative coupling of N-heteroaromatic rings with inert C-H or Si-H partners via visible-light-catalyzed hydrogen atom transfer has been reported. This methodology allows the coupling reactions to be carried out in water as a solvent under air atmospheric conditions with visible-light illumination. A wide range of inert C-H and Si-H partners could be directly coupled with various N-aromatic heterocycles to deliver products in good to excellent yields.
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Affiliation(s)
- Jun-Feng Yang
- School of Chemistry, Dalian University of Technology, Dalian 116024, P. R. China
| | - Yun-Fei Liu
- School of Chemistry, Dalian University of Technology, Dalian 116024, P. R. China
| | - Lin-Lin Wei
- School of Chemistry, Dalian University of Technology, Dalian 116024, P. R. China
| | - Kai-Kai Qiao
- School of Chemistry, Dalian University of Technology, Dalian 116024, P. R. China
| | - Yan-Qiu Zhao
- School of Chemistry, Dalian University of Technology, Dalian 116024, P. R. China
| | - Lei Shi
- School of Chemistry, Dalian University of Technology, Dalian 116024, P. R. China
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2
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Ikemoto Y, Chiba S, Li Z, Chen Q, Mori H, Nishihara Y. Carboazidation of Terminal Alkenes with Trimethylsilyl Azide and Cyclic Ethers Catalyzed by Copper Powder under Oxidative Conditions. J Org Chem 2023; 88:4472-4480. [PMID: 36947875 DOI: 10.1021/acs.joc.2c03081] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/24/2023]
Abstract
Copper-catalyzed carboazidation of alkenes with trimethylsilyl azide and cyclic ethers has been achieved. The employment of naturally abundant copper catalysts allowed cyclic ethers to be used as alkylating reagents under oxidative conditions. The use of styrene derivatives and 1,1-diaryl alkenes afforded carboazidation products. In addition, application of five- and six-membered cyclic ethers to the present reaction gave target organic molecules bearing azide and cyclic ether groups with perfect regioselectivity. Radical trapping and clock experiments revealed that the present reaction proceeded via the radical pathway. To further demonstrate the utility of this carboazidation reaction, transformations from the azide group to the related nitrogen-containing compounds were also performed.
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Affiliation(s)
- Yuichi Ikemoto
- Graduate School of Natural Science and Technology, Okayama University, 3-1-1 Tsushimanaka, Kita-ku, Okayama 700-8530, Japan
| | - Sho Chiba
- Graduate School of Natural Science and Technology, Okayama University, 3-1-1 Tsushimanaka, Kita-ku, Okayama 700-8530, Japan
| | - Zhenyao Li
- Graduate School of Natural Science and Technology, Okayama University, 3-1-1 Tsushimanaka, Kita-ku, Okayama 700-8530, Japan
| | - Qiang Chen
- Graduate School of Natural Science and Technology, Okayama University, 3-1-1 Tsushimanaka, Kita-ku, Okayama 700-8530, Japan
| | - Hiroki Mori
- Research Institute for Interdisciplinary Science, Okayama University, 3-1-1 Tsushimanaka, Kita-ku, Okayama 700-8530, Japan
| | - Yasushi Nishihara
- Research Institute for Interdisciplinary Science, Okayama University, 3-1-1 Tsushimanaka, Kita-ku, Okayama 700-8530, Japan
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3
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Mu Y, Jiang R, Hong Y, Hou J, Yang Z, Tang D. Acid-catalyzed synthesis of pyrazolo[4,3-c]quinolines from (1H-pyrazol-5-yl)anilines and ethers via the cleavage of C–O bond. Tetrahedron 2022. [DOI: 10.1016/j.tet.2022.133040] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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4
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Ravindar L, Hasbullah SA, Hassan NI, Qin HL. Cross‐Coupling of C‐H and N‐H Bonds: a Hydrogen Evolution Strategy for the Construction of C‐N Bonds. European J Org Chem 2022. [DOI: 10.1002/ejoc.202200596] [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)
- Lekkala Ravindar
- Universiti Kebangsaan Malaysia Fakulti Teknologi dan Sains Maklumat Chemical Sciences Faculty of Science & Technology 43600 Bandar Baru Bangi MALAYSIA
| | - Siti Aishah Hasbullah
- Universiti Kebangsaan Malaysia Fakulti Sains dan Teknologi Chemical Sciences Faculty of Science & Technology 43600 Bandar Baru Bangi MALAYSIA
| | - Nurul Izzaty Hassan
- Universiti Kebangsaan Malaysia Fakulti Sains dan Teknologi Chemical Sciences Faculty of Science & Technology 43600 Bandar Baru Bangi MALAYSIA
| | - Hua-Li Qin
- Wuhan University of Technology School of Chemistry 430070 Hubei CHINA
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5
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Zhao J, Hua HL, Wang GP, Cheng JL, Liang YM. H2O2‐Promoted Alkoxyalkylation of Terminal Alkynes Employing Two Strategies with Transition‐Metal‐Free. ASIAN J ORG CHEM 2022. [DOI: 10.1002/ajoc.202100726] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
Affiliation(s)
- Jinhao Zhao
- Zhejiang University Yuhangtang Road 866 Hangzhou CHINA
| | | | | | - Jing-Li Cheng
- Zhejiang University College of Civil Engineering and Architecture CHINA
| | - Yong-Min Liang
- Lanzhou University College of Chemistry and Chemical Engineering CHINA
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6
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Weigel WK, Dang HT, Feceu A, Martin DBC. Direct radical functionalization methods to access substituted adamantanes and diamondoids. Org Biomol Chem 2021; 20:10-36. [PMID: 34651636 DOI: 10.1039/d1ob01916c] [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
Adamantane derivatives have diverse applications in the fields of medicinal chemistry, catalyst development and nanomaterials, owing to their unique structural, biological and stimulus-responsive properties, among others. The synthesis of substituted adamantanes and substituted higher diamondoids is frequently achieved via carbocation or radical intermediates that have unique stability and reactivity when compared to simple hydrocarbon derivatives. In this review, we discuss the wide range of radical-based functionalization reactions that directly convert diamondoid C-H bonds to C-C bonds, providing a variety of products incorporating diverse functional groups (alkenes, alkynes, arenes, carbonyl groups, etc.). Recent advances in the area of selective C-H functionalization are highlighted with an emphasis on the H-atom abstracting species and their ability to activate the particularly strong C-H bonds that are characteristic of these caged hydrocarbons, providing insights that can be applied to the C-H functionalization of other substrate classes.
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Affiliation(s)
- William K Weigel
- Chemistry, University of Iowa, Iow City, Iowa, USA.,University of California Riverside, Riverside, California, USA.
| | - Hoang T Dang
- Chemistry, University of Iowa, Iow City, Iowa, USA
| | - Abigail Feceu
- University of California Riverside, Riverside, California, USA.
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7
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Bhakat M, Biswas P, Dey J, Guin J. Heteroarylation of Ethers, Amides, and Alcohols with Light and O 2. Org Lett 2021; 23:6886-6890. [PMID: 34431683 DOI: 10.1021/acs.orglett.1c02440] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
An efficient protocol for the Cα-H heteroarylation of ethers, amides, and alcohols using air and light under mild conditions is described. The reaction is applicable to a wide spectrum of functional groups. The generation of C-radicals via photoinduced aerobic oxidation of ethers, amides, and alcohols is the key feature of the process. Control experiments suggest a radical pathway for the reaction.
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Affiliation(s)
- Manotosh Bhakat
- School of Chemical Sciences, Indian Association for the Cultivation of Science, 2A & 2B Raja S. C. Mullick Road, Jadavpur, Kolkata 700032, India
| | - Promita Biswas
- School of Chemical Sciences, Indian Association for the Cultivation of Science, 2A & 2B Raja S. C. Mullick Road, Jadavpur, Kolkata 700032, India
| | - Jayanta Dey
- School of Chemical Sciences, Indian Association for the Cultivation of Science, 2A & 2B Raja S. C. Mullick Road, Jadavpur, Kolkata 700032, India
| | - Joyram Guin
- School of Chemical Sciences, Indian Association for the Cultivation of Science, 2A & 2B Raja S. C. Mullick Road, Jadavpur, Kolkata 700032, India
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8
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Qiu ZX, Dong PZ, Zhao HL, Zhao MF, Qiu B, Xiao J. Brønsted Acid-Catalyzed Minisci-Type Cross-Dehydrogenative Coupling of N-Heteroaromatics and Cyclic Ethers. J Org Chem 2021; 86:9299-9305. [PMID: 34181422 DOI: 10.1021/acs.joc.1c00337] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Brønsted acid-catalyzed direct C(sp2)-H alkylation of N-heteroaromatics with cyclic ethers via a cross-dehydrogenative coupling reaction in the presence of benzoyl peroxide was developed. This methodology successfully provided an easy access to a variety of alkyl-substituted quinoxaline, benzoimidazole, pyrazine, pyrimidine, quinoline, isoquinoline, and pyridine derivatives in up to 94% yield under metal-free conditions.
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Affiliation(s)
- Zhong-Xuan Qiu
- School of Biological and Chemical Engineering, Qingdao Technical College, Qingdao 266555, P.R. China
| | - Pei-Zhen Dong
- College of Chemistry and Pharmaceutical Sciences, Qingdao Agricultural University, Qingdao 266109, China
| | - Huai-Li Zhao
- College of Chemistry and Pharmaceutical Sciences, Qingdao Agricultural University, Qingdao 266109, China
| | - Mei-Fa Zhao
- School of Biological and Chemical Engineering, Qingdao Technical College, Qingdao 266555, P.R. China
| | - Bin Qiu
- College of Chemistry and Pharmaceutical Sciences, Qingdao Agricultural University, Qingdao 266109, China
| | - Jian Xiao
- College of Chemistry and Pharmaceutical Sciences, Qingdao Agricultural University, Qingdao 266109, China
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9
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Batra A, Singh KN. Recent Developments in Transition Metal‐Free Cross‐Dehydrogenative Coupling Reactions for C–C Bond Formation. European J Org Chem 2020. [DOI: 10.1002/ejoc.202000785] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Aanchal Batra
- PG Department of Chemistry Mehr Chand Mahajan DAV College for Women Sec 36/A 160036 Chandigarh India
| | - Kamal Nain Singh
- Department of Chemistry and Centre of Advanced studies in Chemistry Panjab University 160014 Chandigarh India
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10
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Zhou LJ, Wang K, Guan HR, Zheng AQ, Yang HT, Miao CB. Cu(OAc)2-Promoted Oxidative Cross-Dehydrogenative Coupling Reaction of α-Acylmethyl Malonates with Indole Derivatives to Access 3-Functionalized Indoles and Polycyclic Indoles. J Org Chem 2020; 85:7925-7938. [DOI: 10.1021/acs.joc.0c00624] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Li-Jin Zhou
- Jiangsu Key Laboratory of Advanced Catalytic Materials and Technology, School of Petrochemical Engineering, Changzhou University, Changzhou 213164, China
| | - Kun Wang
- Jiangsu Key Laboratory of Advanced Catalytic Materials and Technology, School of Petrochemical Engineering, Changzhou University, Changzhou 213164, China
| | - Hong-Rong Guan
- Jiangsu Key Laboratory of Advanced Catalytic Materials and Technology, School of Petrochemical Engineering, Changzhou University, Changzhou 213164, China
| | - An-Qi Zheng
- Jiangsu Key Laboratory of Advanced Catalytic Materials and Technology, School of Petrochemical Engineering, Changzhou University, Changzhou 213164, China
| | - Hai-Tao Yang
- Jiangsu Key Laboratory of Advanced Catalytic Materials and Technology, School of Petrochemical Engineering, Changzhou University, Changzhou 213164, China
| | - Chun-Bao Miao
- Jiangsu Key Laboratory of Advanced Catalytic Materials and Technology, School of Petrochemical Engineering, Changzhou University, Changzhou 213164, China
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11
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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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12
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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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13
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Chen X, Li Y, Chen L, Zhu Z, Li B, Huang Y, Zhang M. Synthesis of N-Biheteroarenes via Acceptorless Dehydrogenative Coupling of Benzocyclic Amines with Indole Derivatives. J Org Chem 2019; 84:3559-3565. [DOI: 10.1021/acs.joc.9b00200] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Xiuwen Chen
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen 529020, China
| | - Yibiao Li
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen 529020, China
| | - Lu Chen
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen 529020, China
| | - Zhongzhi Zhu
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen 529020, China
| | - Bin Li
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen 529020, China
| | - Yubing Huang
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen 529020, China
| | - Min Zhang
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen 529020, China
- School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510641, China
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14
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Luo Z, Jiang Z, Jiang W, Lin D. C–H Amination of Purine Derivatives via Radical Oxidative Coupling. J Org Chem 2018; 83:3710-3718. [DOI: 10.1021/acs.joc.8b00066] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Zheng Luo
- School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640, People′s Republic of China
| | - Ziyang Jiang
- School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640, People′s Republic of China
| | - Wei Jiang
- School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640, People′s Republic of China
| | - Dongen Lin
- School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640, People′s Republic of China
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15
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Ye YX, Ou YL, Liang H, Zhou HY, Ye BH. Copper-catalyzed direct α-alkynylation of ethers under mild conditions. CATAL COMMUN 2018. [DOI: 10.1016/j.catcom.2017.11.010] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022] Open
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16
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17
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Abstract
Among organic compounds hydrocarbons are inexpensive and possibly the most abundant among natural resources. Developing strategies for selective functionalisation of inert hydrocarbon C-H bonds is one of the most ideal synthetic paths that a synthetic chemist could think of. This critical review focuses on the recent development of various directed and non-directed cycloalkylations leading to the formation of carbon-carbon (C-C) and carbon-heteroatom (C-X) bonds. Apart from various transition metal catalysed cycloalkylations, this review also covers various metal-free cycloalkylation processes.
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Affiliation(s)
- Arghya Banerjee
- Department of Chemistry, Indian Institute of Technology Guwahati, 781 039, Assam, India.
| | - Satavisha Sarkar
- Department of Chemistry, Indian Institute of Technology Guwahati, 781 039, Assam, India.
| | - Bhisma K Patel
- Department of Chemistry, Indian Institute of Technology Guwahati, 781 039, Assam, India.
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18
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Jafarpour F, Darvishmolla M. Peroxy mediated Csp2–Csp3 dehydrogenative coupling: regioselective functionalization of coumarins and coumarin-3-carboxylic acids. Org Biomol Chem 2018; 16:3396-3401. [DOI: 10.1039/c7ob02771k] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
Regioselective functionalization of coumarins/coumarin carboxylic acids at C-3 via activation of Csp3–H bonds of ethers under metal-free conditions is developed.
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Affiliation(s)
- Farnaz Jafarpour
- School of Chemistry
- College of Science
- University of Tehran
- Tehran
- Iran
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19
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Yue Q, Xiao Z, Ran Z, Yuan S, Zhang Q, Li D. Copper-catalyzed α-C–H amidation of simple ethers through C(sp3)–H/N–H cross dehydrogenative coupling. Org Chem Front 2018. [DOI: 10.1039/c7qo01003f] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
An efficient copper-catalyzed α-C–H amidation of simple ethers with N-(8-quinolyl)amides through C(sp3)–H/N–H cross dehydrogenative coupling was developed.
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Affiliation(s)
- Qiang Yue
- School of Materials and Chemical Engineering
- Hubei University of Technology
- Wuhan 430068
- China
| | - Zhen Xiao
- School of Materials and Chemical Engineering
- Hubei University of Technology
- Wuhan 430068
- China
| | - Ziyao Ran
- School of Materials and Chemical Engineering
- Hubei University of Technology
- Wuhan 430068
- China
| | - Songdong Yuan
- School of Materials and Chemical Engineering
- Hubei University of Technology
- Wuhan 430068
- China
- The Synergistic Innovation Center of Catalysis Materials of Hubei Province
| | - Qian Zhang
- School of Materials and Chemical Engineering
- Hubei University of Technology
- Wuhan 430068
- China
| | - Dong Li
- School of Materials and Chemical Engineering
- Hubei University of Technology
- Wuhan 430068
- China
- The Synergistic Innovation Center of Catalysis Materials of Hubei Province
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20
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Yang Q, Li S, Wang J(J. Cobalt-catalyzed cross-dehydrogenative coupling of imidazo[1,2-a]pyridines with isochroman using molecular oxygen as the oxidant. Org Chem Front 2018. [DOI: 10.1039/c7qo00875a] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A cobalt-catalyzed cross-dehydrogenative coupling of 2-arylimidazo[1,2-a]pyridines with isochroman is developed using molecular oxygen as the oxidant.
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Affiliation(s)
- Qingjing Yang
- School of Chemistry and Chemical Engineering
- Harbin Institute of Technology
- Harbin
- China
- Department of Chemistry
| | - Sifeng Li
- Department of Chemistry
- South University of Science and Technology of China
- Shenzhen
- China
| | - Jun (Joelle) Wang
- Department of Chemistry
- South University of Science and Technology of China
- Shenzhen
- China
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21
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Wu J, Zhou Y, Zhou Y, Chiang CW, Lei A. Electro-oxidative C(sp3)–H Amination of Azoles via Intermolecular Oxidative C(sp3)–H/N–H Cross-Coupling. ACS Catal 2017. [DOI: 10.1021/acscatal.7b03551] [Citation(s) in RCA: 118] [Impact Index Per Article: 16.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Jiwei Wu
- The
Institute for Advanced Studies (IAS), College of Chemistry and Molecular
Sciences, Wuhan University, Wuhan, 430072, P. R. China
| | - Yi Zhou
- The
Institute for Advanced Studies (IAS), College of Chemistry and Molecular
Sciences, Wuhan University, Wuhan, 430072, P. R. China
| | - Yuchen Zhou
- The
Institute for Advanced Studies (IAS), College of Chemistry and Molecular
Sciences, Wuhan University, Wuhan, 430072, P. R. China
| | - Chien-Wei Chiang
- The
Institute for Advanced Studies (IAS), College of Chemistry and Molecular
Sciences, Wuhan University, Wuhan, 430072, P. R. China
| | - Aiwen Lei
- The
Institute for Advanced Studies (IAS), College of Chemistry and Molecular
Sciences, Wuhan University, Wuhan, 430072, P. R. China
- State
Key Laboratory for Oxo Synthesis and Selective Oxidation, Lanzhou
Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou, 730000, P. R. China
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22
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Wang X, Lei B, Ma L, Zhu L, Zhang X, Zuo H, Zhuang D, Li Z. Cobalt-Catalyzed Cross-Dehydrogenative C(sp 2 )-C(sp 3 ) Coupling of Oxazole/Thiazole with Ether or Cycloalkane. Chem Asian J 2017; 12:2799-2803. [PMID: 28929591 DOI: 10.1002/asia.201701258] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2017] [Revised: 09/18/2017] [Indexed: 11/08/2022]
Abstract
Direct C5-alkylation of oxazole/thiazole with ether or cycloalkane has been achieved through a cobalt-catalyzed cross-dehydrogenative coupling (CDC) process in moderate to good yields. This transformation represents the first C(sp2 )-C(sp3 ) cross-coupling at the C5-position of the oxazole/thiazole via double C-H bond cleavages. Various functional groups on oxazole/thiazole substrates, as well as water and air, are well-tolerated with this concise and practical protocol, constituting straightforward access to heterocycles with great medicinal significance. A preliminary mechanism involving a radical process has also been proposed.
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Affiliation(s)
- Xiaojiao Wang
- Department of Pharmaceutical and Biological Engineering, School of Chemical Engineering, Sichuan University, No.24 South Section 1, Yihuan Road, Chengdu, 610065, China
| | - Bowen Lei
- Department of Pharmaceutical and Biological Engineering, School of Chemical Engineering, Sichuan University, No.24 South Section 1, Yihuan Road, Chengdu, 610065, China
| | - Lifang Ma
- Department of Pharmaceutical and Biological Engineering, School of Chemical Engineering, Sichuan University, No.24 South Section 1, Yihuan Road, Chengdu, 610065, China
| | - Lisi Zhu
- Department of Pharmaceutical and Biological Engineering, School of Chemical Engineering, Sichuan University, No.24 South Section 1, Yihuan Road, Chengdu, 610065, China
| | - Xinyue Zhang
- Department of Pharmaceutical and Biological Engineering, School of Chemical Engineering, Sichuan University, No.24 South Section 1, Yihuan Road, Chengdu, 610065, China
| | - Hao Zuo
- Department of Pharmaceutical and Biological Engineering, School of Chemical Engineering, Sichuan University, No.24 South Section 1, Yihuan Road, Chengdu, 610065, China
| | - Dailin Zhuang
- Department of Pharmaceutical and Biological Engineering, School of Chemical Engineering, Sichuan University, No.24 South Section 1, Yihuan Road, Chengdu, 610065, China
| | - Ziyuan Li
- Department of Pharmaceutical and Biological Engineering, School of Chemical Engineering, Sichuan University, No.24 South Section 1, Yihuan Road, Chengdu, 610065, China
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23
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Lakshman MK, Vuram PK. Cross-dehydrogenative coupling and oxidative-amination reactions of ethers and alcohols with aromatics and heteroaromatics. Chem Sci 2017; 8:5845-5888. [PMID: 28970941 PMCID: PMC5618789 DOI: 10.1039/c7sc01045a] [Citation(s) in RCA: 97] [Impact Index Per Article: 13.9] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2017] [Accepted: 05/22/2017] [Indexed: 11/21/2022] Open
Abstract
Cross-dehydrogenative coupling (CDC) is a process in which, typically, a C-C bond is formed at the expense of two C-H bonds, either catalyzed by metals or other organic compounds, or via uncatalyzed processes. In this perspective, we present various modes of C-H bond-activation at sp3 centers adjacent to ether oxygen atoms, followed by C-C bond formation with aromatic systems as well as with heteroaromatic systems. C-N bond-formation with NH-containing heteroaromatics, leading to hemiaminal ethers, is also an event that can occur analogously to C-C bond formation, but at the expense of C-H and N-H bonds. A large variety of hemiaminal ether-forming reactions have recently appeared in the literature and this perspective also includes this complementary chemistry. In addition, the participation of C-H bonds in alcohols in such processes is also described. Facile access to a wide range of compounds can be attained through these processes, rendering such reactions useful for synthetic applications via Csp3 bond activations.
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Affiliation(s)
- Mahesh K Lakshman
- Department of Chemistry , The City College of New York , 160 Convent Avenue , New York 10031 , USA .
- The Ph.D. Program in Chemistry , The Graduate Center of The City University of New York , New York 10016 , USA
| | - Prasanna K Vuram
- Department of Chemistry , The City College of New York , 160 Convent Avenue , New York 10031 , USA .
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Wang J, Sang R, Chong X, Zhao Y, Fan W, Li Z, Zhao J. Copper-catalyzed radical cascade oxyalkylation of olefinic amides with simple alkanes: highly efficient access to benzoxazines. Chem Commun (Camb) 2017; 53:7961-7964. [PMID: 28660972 DOI: 10.1039/c7cc04213b] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
A copper-catalyzed C(sp3)-H bond functionalization of simple alkanes with olefinic amides was developed for the efficient synthesis of important benzoxazine derivatives. It involves new C-C and C-O bond formation in one step via a radical cascade process.
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Affiliation(s)
- Jie Wang
- College of Chemistry & Environmental Science, Hebei University, Baoding, Hebei 071002, P. R. China.
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25
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Gu Z, Tang Y, Jiang GF. Combined Di-tert-butyl Peroxide and Inorganic Base Promoted α-Alkylation of Ethers with Arenesulfonylindoles. J Org Chem 2017; 82:5441-5448. [PMID: 28471176 DOI: 10.1021/acs.joc.7b00463] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The di-tert-butyl peroxide (DTBP) induced coupling of arenesulfonylindoles with ethers such as 1,4-dioxane, tetrahydropyran, tetrahydrofuran, and 1,2-dimethoxyethane was studied. The distinguishing feature of this strategy was characterized by capturing in situ generated vinylogous imine intermediates for the C(sp3)-H bond alkylation of ethers. This general procedure presents the major advantages of its wide substrate scope and good functional group compatibility.
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Affiliation(s)
- Zheng Gu
- State Key Lab of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University , Changsha 410082, China
| | - Yao Tang
- State Key Lab of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University , Changsha 410082, China
| | - Guo-Fang Jiang
- State Key Lab of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University , Changsha 410082, China
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26
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Liu S, Liu A, Zhang Y, Wang W. Direct Cα-heteroarylation of structurally diverse ethers via a mild N-hydroxysuccinimide mediated cross-dehydrogenative coupling reaction. Chem Sci 2017; 8:4044-4050. [PMID: 30155212 PMCID: PMC6094177 DOI: 10.1039/c6sc05697k] [Citation(s) in RCA: 72] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2016] [Accepted: 03/23/2017] [Indexed: 12/15/2022] Open
Abstract
An important challenge in the Cα-heteroarylation of ethers is the requirement of a large excess amount of ethers (that are used as solvents in many cases) to achieve effective transformations. This drawback has significantly restricted the Cα-heteroarylation of ethers to the use of simple and easily accessible ether substrates. To overcome this limitation, a new, efficient, N-hydroxysuccinimide (NHS) mediated, mild and metal-free CDC strategy for the direct Cα-heteroarylation of diverse ethers has been developed. Different to our previous benzaldehyde mediated photoredox Cα-heteroarylation, we have identified NHS as a new and efficient mediator without using light. A distinct non-photoredox engaged hydrogen-atom-transfer (HAT) mechanism that used a nitrogen-centered radical cation produced from NHS is initially revealed. Notably, only 5-10 equivalents of ethers as coupling partners are used, which allows for structurally diverse and complex ethers to engage in this process, to create highly medicinally relevant Cα-heteroarylated ethers. Furthermore, more structurally diverse heterocyclics can serve as reactants for this process.
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Affiliation(s)
- Shihui Liu
- Shanghai Key Laboratory of New Drug Design , School of Pharmacy , State Key Laboratory of Bioengineering Reactor , East China University of Science and Technology , 130 Mei-long Road , Shanghai 200237 , China . ;
| | - Aoxia Liu
- Shanghai Key Laboratory of New Drug Design , School of Pharmacy , State Key Laboratory of Bioengineering Reactor , East China University of Science and Technology , 130 Mei-long Road , Shanghai 200237 , China . ;
| | - Yongqiang Zhang
- Shanghai Key Laboratory of New Drug Design , School of Pharmacy , State Key Laboratory of Bioengineering Reactor , East China University of Science and Technology , 130 Mei-long Road , Shanghai 200237 , China . ;
| | - Wei Wang
- Shanghai Key Laboratory of New Drug Design , School of Pharmacy , State Key Laboratory of Bioengineering Reactor , East China University of Science and Technology , 130 Mei-long Road , Shanghai 200237 , China . ;
- Department of Chemistry and Chemical Biology , University of New Mexico , Albuquerque , NM 87131-0001 , USA
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27
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Batra A, Singh P, Singh KN. Recent Advances in Functionalization of α-C(sp3)-H Centres in Inactivated Ethers through Cross Dehydrogenative Coupling. European J Org Chem 2017. [DOI: 10.1002/ejoc.201700341] [Citation(s) in RCA: 51] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Affiliation(s)
- Aanchal Batra
- Department of Chemistry; DAV College; Sec 10-D Chandigarh India
| | - Paramjit Singh
- Department of Chemistry and Centre of Advanced Studies in Chemistry; Panjab University; 160014 Chandigarh India
| | - Kamal Nain Singh
- Department of Chemistry and Centre of Advanced Studies in Chemistry; Panjab University; 160014 Chandigarh India
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28
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Copper (I) Catalyzed Sp3C-H Arylation ofN-Arylglycine Ester Derivatives under Aerobic Conditions. ChemistrySelect 2017. [DOI: 10.1002/slct.201700330] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
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29
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Zhang JR, Xu L, Liao YY, Deng JC, Tang RY. Advances in Radical Oxidative C-H Alkylation ofN-Heteroarenes. CHINESE J CHEM 2017. [DOI: 10.1002/cjoc.201600784] [Citation(s) in RCA: 36] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Jun-Rong Zhang
- Department of Applied Chemistry, College of Materials and Energy; South China Agricultural University; Guangzhou Guangdong 510642 China
| | - Li Xu
- Department of Applied Chemistry, College of Materials and Energy; South China Agricultural University; Guangzhou Guangdong 510642 China
| | - Yan-Yan Liao
- Department of Applied Chemistry, College of Materials and Energy; South China Agricultural University; Guangzhou Guangdong 510642 China
| | - Jian-Chao Deng
- Department of Applied Chemistry, College of Materials and Energy; South China Agricultural University; Guangzhou Guangdong 510642 China
| | - Ri-Yuan Tang
- Department of Applied Chemistry, College of Materials and Energy; South China Agricultural University; Guangzhou Guangdong 510642 China
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30
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Varun BV, Dhineshkumar J, Bettadapur KR, Siddaraju Y, Alagiri K, Prabhu KR. Recent advancements in dehydrogenative cross coupling reactions for CC bond formation. Tetrahedron Lett 2017. [DOI: 10.1016/j.tetlet.2017.01.035] [Citation(s) in RCA: 121] [Impact Index Per Article: 17.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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31
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32
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Gini A, Brandhofer T, Mancheño OG. Recent progress in mild Csp3–H bond dehydrogenative or (mono-) oxidative functionalization. Org Biomol Chem 2017; 15:1294-1312. [DOI: 10.1039/c6ob02474b] [Citation(s) in RCA: 59] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
This review summarizes recent advances in mild and green dehydrogenative and mono-oxidative Csp3–H bond functionalization reactions, considering both new approaches and the re-elaboration of known methodologies.
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Affiliation(s)
- Andrea Gini
- Institute for Organic Chemistry
- University of Regensburg
- 93053 Regensburg
- Germany
- Straubing Center of Science for Renewable Resources
| | - Tobias Brandhofer
- Institute for Organic Chemistry
- University of Regensburg
- 93053 Regensburg
- Germany
- Straubing Center of Science for Renewable Resources
| | - Olga García Mancheño
- Institute for Organic Chemistry
- University of Regensburg
- 93053 Regensburg
- Germany
- Straubing Center of Science for Renewable Resources
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33
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Fu WC, Wu Y, So CM, Wong SM, Lei A, Kwong FY. Catalytic Direct C2-Alkenylation of Oxazoles at Parts per Million Levels of Palladium/PhMezole-Phos Complex. Org Lett 2016; 18:5300-5303. [DOI: 10.1021/acs.orglett.6b02619] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Wai Chung Fu
- State
Key Laboratory of Chirosciences and Department of Applied Biology
and Chemical Technology, The Hong Kong Polytechnic University, Hung Hom, Kowloon 852, Hong Kong
| | - Yong Wu
- College
of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, Hubei, P.R. China
| | - Chau Ming So
- State
Key Laboratory of Chirosciences and Department of Applied Biology
and Chemical Technology, The Hong Kong Polytechnic University, Hung Hom, Kowloon 852, Hong Kong
| | - Shun Man Wong
- State
Key Laboratory of Chirosciences and Department of Applied Biology
and Chemical Technology, The Hong Kong Polytechnic University, Hung Hom, Kowloon 852, Hong Kong
| | - Aiwen Lei
- College
of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, Hubei, P.R. China
| | - Fuk Yee Kwong
- State
Key Laboratory of Chirosciences and Department of Applied Biology
and Chemical Technology, The Hong Kong Polytechnic University, Hung Hom, Kowloon 852, Hong Kong
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34
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Guo SR, Kumar PS, Yang M. Recent Advances of Oxidative Radical Cross-Coupling Reactions: Direct α-C(sp3)-H Bond Functionalization of Ethers and Alcohols. Adv Synth Catal 2016. [DOI: 10.1002/adsc.201600467] [Citation(s) in RCA: 130] [Impact Index Per Article: 16.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Sheng-rong Guo
- Department of Chemistry; Lishui University; Lishui 323000 People's Republic of China
| | - Pailla Santhosh Kumar
- Department of Chemistry; Lishui University; Lishui 323000 People's Republic of China
| | - Minghua Yang
- Department of Chemistry; Lishui University; Lishui 323000 People's Republic of China
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35
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Batra A, Singh P, Singh KN. Cross Dehydrogenative Coupling (CDC) Reactions ofN,N-Disubstituted Formamides, Benzaldehydes and Cycloalkanes. European J Org Chem 2016. [DOI: 10.1002/ejoc.201600401] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Aanchal Batra
- Department of Chemistry; DAV College; Sec 10-D Chandigarh India
| | - Paramjit Singh
- Department of Chemistry and Centre of Advanced Studies in Chemistry; Panjab University; 160014 Chandigarh India
| | - Kamal Nain Singh
- Department of Chemistry and Centre of Advanced Studies in Chemistry; Panjab University; 160014 Chandigarh India
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36
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Pandey G, Laha R, Singh D. Benzylic C(sp(3))-H Functionalization for C-N and C-O Bond Formation via Visible Light Photoredox Catalysis. J Org Chem 2016; 81:7161-71. [PMID: 27269307 DOI: 10.1021/acs.joc.6b00970] [Citation(s) in RCA: 71] [Impact Index Per Article: 8.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
A visible light mediated highly selective benzylic C-H bond functionalization for intermolecular C-N and C-O bond formation is reported. This cross-dehydrogenative coupling reaction demonstrates a straightforward protocol for incorporating the heteroaromatics to the benzylic position. Benzylic oxidation of various alkyl aryls to corresponding carbonyl compounds has also been reported.
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Affiliation(s)
- Ganesh Pandey
- Molecular Synthesis and Drug Discovery Laboratory, Centre of Biomedical Research, Sanjay Gandhi Postgraduate Institute of Medical Sciences , Lucknow 226014, India
| | - Ramkrishna Laha
- Molecular Synthesis and Drug Discovery Laboratory, Centre of Biomedical Research, Sanjay Gandhi Postgraduate Institute of Medical Sciences , Lucknow 226014, India
| | - Deepak Singh
- Molecular Synthesis and Drug Discovery Laboratory, Centre of Biomedical Research, Sanjay Gandhi Postgraduate Institute of Medical Sciences , Lucknow 226014, India
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