1
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Liu SC, Fang DC. DFT Studies on the Mechanisms of Carboamination/Diamination of Unactivated Alkenes Mediated by Pd(IV) Intermediates. J Org Chem 2023; 88:14540-14549. [PMID: 37773964 DOI: 10.1021/acs.joc.3c01561] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/01/2023]
Abstract
Density functional theory (DFT) calculations have been employed to investigate the mechanism of carboamination and diamination of unactivated alkenes mediated by Pd(IV) intermediates. Both reactions share a common Pd(IV) intermediate, serving as the starting point for either the carboamination or the diamination pathway. The formation of this Pd(IV) intermediate encompasses a transition state that substantially impacts the turnover frequency (TOF) of catalytic cycles, with an apparent activation free-energy barrier of 26.1 kcal mol-1. Carboamination of unactivated alkenes proceeds through the coordination of a toluene molecule, C-H activation, inner reductive elimination, and the separation of the carboamination product from this intermediate, while diamination of unactivated alkenes involves the formation of the ion nucleophile, SN2 attack, and the separation of the diamination product. A comparison of the free-energy profiles for carboamination and diamination of unactivated alkenes can elucidate the origin of the chemoselectivity, and Bader's atoms in molecules (AIM) wave function analyses have been performed to analyze the contributions of the outer C-N bonding in the diamination process.
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Affiliation(s)
- Si-Cong Liu
- College of Chemistry, Beijing Normal University, Beijing 100875, China
| | - De-Cai Fang
- College of Chemistry, Beijing Normal University, Beijing 100875, China
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2
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Zhi S, Yao H, Zhang W. Difunctionalization of Dienes, Enynes and Related Compounds via Sequential Radical Addition and Cyclization Reactions. Molecules 2023; 28:molecules28031145. [PMID: 36770814 PMCID: PMC9919800 DOI: 10.3390/molecules28031145] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2023] [Revised: 01/18/2023] [Accepted: 01/19/2023] [Indexed: 01/26/2023] Open
Abstract
Radical reactions are powerful in creating carbon-carbon and carbon-heteroatom bonds. Designing one-pot radical reactions with cascade transformations to assemble the cyclic skeletons with two new functional groups is both synthetically and operationally efficient. Summarized in this paper is the recent development of reactions involving radical addition and cyclization of dienes, diynes, enynes, as well as arene-bridged and arene-terminated compounds for the preparation of difunctionalization cyclic compounds. Reactions carried out with radical initiators, transition metal-catalysis, photoredox, and electrochemical conditions are included.
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Affiliation(s)
- Sanjun Zhi
- Jiangsu Key Laboratory for the Chemistry of Low-Dimensional Materials, Huaiyin Normal University, Huai’an 223300, China
| | - Hongjun Yao
- College of Biological Science and Technology, Beijing Forestry University, 35 Qinghua East Road, Beijing 100083, China
| | - Wei Zhang
- Department of Chemistry, University of Massachusetts Boston, 100 Morrissey Boulevard, Boston, MA 02125, USA
- Correspondence: ; Tel.: +1-617-287-6147
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3
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Singha K, Habib I, Hossain M. Quinoline N‐Oxide: A Versatile Precursor in Organic Transformations. ChemistrySelect 2022. [DOI: 10.1002/slct.202203537] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
- Koustav Singha
- Synthetic Organic Research Laboratory UGC-Human Resource Development Centre (Chemistry) University of North Bengal Siliguri Darjeeling 734013 India
| | - Imran Habib
- Synthetic Organic Research Laboratory UGC-Human Resource Development Centre (Chemistry) University of North Bengal Siliguri Darjeeling 734013 India
| | - Mossaraf Hossain
- Synthetic Organic Research Laboratory UGC-Human Resource Development Centre (Chemistry) University of North Bengal Siliguri Darjeeling 734013 India
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4
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Qian BY, Zhang W, Lin J, Cao W, Xiao JC. anti-Markovnikov Iodofluorination of Alkenes. Chem Asian J 2022; 17:e202200184. [PMID: 35266316 DOI: 10.1002/asia.202200184] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2022] [Revised: 03/09/2022] [Indexed: 11/10/2022]
Abstract
The fluorination of alkenes with electrophilic N-F type reagents usually occurs through a Markovnikov-type addition, and the anti-Markovnikov-type addition may require the use of a transition metal catalyst or an expensive catalyst. Herein we describe a convenient anti-Markovnikov iodofluorination of alkenes with Selectfluor/ nBu4NI. A wide substrate scope and good functional group tolerance were observed. The process allows for the construction of various C-F bonds, especially tertiary C-F bonds. The remarkable features make this protocol attractive, including convenient operations, simple reaction conditions, and the installation of an iodine atom which provides possibilities for further transformations.
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Affiliation(s)
- Bai-Yu Qian
- Shanghai University, Department of Chemistry, CHINA
| | - Wei Zhang
- Shanghai University, Department of Chemistry, CHINA
| | - Jinhong Lin
- Shanghai Institute of Organic Chemistry, Key Laboratory of Organofluorine Chemistry, 345 Lingling Road, 200032, Shanghai, CHINA
| | - Weiguo Cao
- Shanghai University, Department of Chemistry, CHINA
| | - Ji-Chang Xiao
- SIOC: Shanghai Institute of Organic Chemistry, Key Laboratory of Organofluorine Chemistry, CHINA
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5
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Lv Y, Cui H, Meng N, Yue H, Wei W. Recent advances in the application of sulfinic acids for the construction of sulfur-containing compounds. CHINESE CHEM LETT 2022. [DOI: 10.1016/j.cclet.2021.06.068] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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6
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Bao R, Feng Y, Deng D, Huang D, Sun X. Sulfinic Acids in Organic Synthesis: A Review of Recent Studies. ASIAN J ORG CHEM 2021. [DOI: 10.1002/ajoc.202100331] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Affiliation(s)
- Ruwei Bao
- Department of Chemistry Lishui University No. 1, Xueyuan Road Lishui City 323000 Zhejiang Province P. R. China
| | - Yanping Feng
- Department of Chemistry Lishui University No. 1, Xueyuan Road Lishui City 323000 Zhejiang Province P. R. China
| | - Danfeng Deng
- Department of Chemistry Lishui University No. 1, Xueyuan Road Lishui City 323000 Zhejiang Province P. R. China
| | - Dayun Huang
- Department of Chemistry Lishui University No. 1, Xueyuan Road Lishui City 323000 Zhejiang Province P. R. China
| | - Xiangyu Sun
- Torch High Technology Industry Development Center Ministry of Science & technology
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7
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Ji WZ, Shi HN, Hao WJ, Wei P, Tu SJ, Jiang B. Generation of stereodefined (Z)-3,4-dihydronaphthalen-1(2H)-ones via copper-catalyzed annulation-cyanotrifluoromethylation of 1,7-enynes. Tetrahedron Lett 2021. [DOI: 10.1016/j.tetlet.2020.152722] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
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8
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Zuo HD, Ji XS, Guo C, Tu SJ, Hao WJ, Jiang B. Cu-Catalyzed radical-triggered spirotricyclization of enediynes and enyne-nitriles for the synthesis of pentacyclic spiroindenes. Org Chem Front 2021. [DOI: 10.1039/d0qo01640c] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
A new copper-catalyzed radical-triggered fluoromethylation-spirotricyclization of enediyne- and enyne-nitrile-containing para-quinone methides (p-QMs) was reported for the first time, and used to produce a series of hitherto unreported pentacyclic spiroindenes.
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Affiliation(s)
- Hang-Dong Zuo
- College of Chemistry and Molecular Engineering
- Nanjing Tech University
- Nanjing 211816
- P. R. China
- School of Chemistry & Materials Science
| | - Xiao-Shuang Ji
- School of Chemistry & Materials Science
- Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials
- Jiangsu Normal University
- Xuzhou 221116
- P. R. China
| | - Cheng Guo
- College of Chemistry and Molecular Engineering
- Nanjing Tech University
- Nanjing 211816
- P. R. China
| | - Shu-Jiang Tu
- School of Chemistry & Materials Science
- Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials
- Jiangsu Normal University
- Xuzhou 221116
- P. R. China
| | - Wen-Juan Hao
- School of Chemistry & Materials Science
- Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials
- Jiangsu Normal University
- Xuzhou 221116
- P. R. China
| | - Bo Jiang
- School of Chemistry & Materials Science
- Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials
- Jiangsu Normal University
- Xuzhou 221116
- P. R. China
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9
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Ji W, Shi H, Wei P, Hao W, Tu S, Jiang B. Photocatalytic Annulation‐Carbohalogenation of 1,7‐Enynes for Atom‐Economic Synthesis of Functionalized 3,4‐Dihydronaphthalen‐1(2
H
)‐ones. Adv Synth Catal 2020. [DOI: 10.1002/adsc.202001125] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Wen‐Zhe Ji
- Biotechnology and Pharmaceutical Engineering Nanjing Tech University Nanjing 210009 People's Republic of China
- School of Chemistry and Material Science Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials Jiangsu Normal University Xuzhou 211116 People's Republic of China
| | - Hao‐Nan Shi
- School of Chemistry and Material Science Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials Jiangsu Normal University Xuzhou 211116 People's Republic of China
| | - Ping Wei
- Biotechnology and Pharmaceutical Engineering Nanjing Tech University Nanjing 210009 People's Republic of China
| | - Wen‐Juan Hao
- School of Chemistry and Material Science Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials Jiangsu Normal University Xuzhou 211116 People's Republic of China
| | - Shu‐Jiang Tu
- School of Chemistry and Material Science Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials Jiangsu Normal University Xuzhou 211116 People's Republic of China
| | - Bo Jiang
- School of Chemistry and Material Science Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials Jiangsu Normal University Xuzhou 211116 People's Republic of China
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10
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Zuo HD, Cui CC, Guo C, Hao WJ, Tu SJ, Jiang B. Metal-Catalyzed Spiroannulation-Fluoromethylfunctionaliztions of 1,5-Enynes for the Synthesis of Stereodefined (Z)-Spiroindenes. Chem Asian J 2020; 15:4070-4076. [PMID: 33016006 DOI: 10.1002/asia.202000954] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2020] [Revised: 10/02/2020] [Indexed: 12/12/2022]
Abstract
Two classes of new catalytic spiroannulation-fluormethylfunctionaliztions of para-quinone methide (p-QM)-containing 1,5-enynes have been established under redox-neutral conditions. Palladium-catalyzed spiroannulation-iododifluoromethylation with ethyl difluoroiodoacetate oriented completely stereoselective access to (Z)-spiroindenes and the latter included copper-catalyzed three-component spiroannulation-cyanotrifluoromethylation starting from Togni's reagent and trimethylsilanecarbonitrile (TMSCN). Both reaction pathways involve fluoroalkyl radical-triggered 1,6-addition/5-exo-dig annulation/metal radical cross-coupling/reductive elimination sequence, providing practical and stereoselective protocols for rapidly constructing cyclohexadienone-containing spiroindenes with generally good yields.
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Affiliation(s)
- Hang-Dong Zuo
- College of Chemistry and Molecular Engineering, Nanjing Tech University, Nanjing, 211816, P. R. China.,School of Chemistry & Materials Science, Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials, Jiangsu Normal University, Xuzhou, 221116, P. R. China
| | - Chen-Chang Cui
- School of Chemistry & Materials Science, Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials, Jiangsu Normal University, Xuzhou, 221116, P. R. China
| | - Cheng Guo
- College of Chemistry and Molecular Engineering, Nanjing Tech University, Nanjing, 211816, P. R. China
| | - Wen-Juan Hao
- School of Chemistry & Materials Science, Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials, Jiangsu Normal University, Xuzhou, 221116, P. R. China
| | - Shu-Jiang Tu
- School of Chemistry & Materials Science, Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials, Jiangsu Normal University, Xuzhou, 221116, P. R. China
| | - Bo Jiang
- School of Chemistry & Materials Science, Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials, Jiangsu Normal University, Xuzhou, 221116, P. R. China
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11
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Wu Y, Zhang T, Hao W, Tu S, Jiang B. Metal‐Free Radical Annulation‐Hydrofunctionalization of 1,6‐Enynes for Stereoselective Synthesis of (
E
)‐1‐Indanones. ASIAN J ORG CHEM 2020. [DOI: 10.1002/ajoc.202000197] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Ya‐Nan Wu
- School of Chemistry & Materials ScienceJiangsu Normal University Xuzhou 221116 P. R. China
- School of Chemistry and Chemical EngineeringNantong University Nantong 226019 P. R. China
| | - Tian‐Shu Zhang
- School of Chemistry & Materials ScienceJiangsu Normal University Xuzhou 221116 P. R. China
| | - Wen‐Juan Hao
- School of Chemistry & Materials ScienceJiangsu Normal University Xuzhou 221116 P. R. China
| | - Shu‐Jiang Tu
- School of Chemistry & Materials ScienceJiangsu Normal University Xuzhou 221116 P. R. China
| | - Bo Jiang
- School of Chemistry & Materials ScienceJiangsu Normal University Xuzhou 221116 P. R. China
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12
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Zuo HD, Hao WJ, Zhu CF, Guo C, Tu SJ, Jiang B. Electrochemical Annulation–Iodosulfonylation of 1,5-Enyne-containing para-Quinone Methides (p-QMs) to Access (E)-Spiroindenes. Org Lett 2020; 22:4471-4477. [DOI: 10.1021/acs.orglett.0c01470] [Citation(s) in RCA: 55] [Impact Index Per Article: 13.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Hang-Dong Zuo
- School of Chemistry & Materials Science, Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials, Jiangsu Normal University, Xuzhou 221116, P. R. China
- College of Chemistry and Molecular Engineering and Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, Nanjing 210009, Jiangsu P. R. China
| | - Wen-Juan Hao
- School of Chemistry & Materials Science, Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials, Jiangsu Normal University, Xuzhou 221116, P. R. China
| | - Chi-Fan Zhu
- School of Chemistry & Materials Science, Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials, Jiangsu Normal University, Xuzhou 221116, P. R. China
- College of Chemistry and Molecular Engineering and Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, Nanjing 210009, Jiangsu P. R. China
| | - Cheng Guo
- College of Chemistry and Molecular Engineering and Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, Nanjing 210009, Jiangsu P. R. China
| | - Shu-Jiang Tu
- School of Chemistry & Materials Science, Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials, Jiangsu Normal University, Xuzhou 221116, P. R. China
| | - Bo Jiang
- School of Chemistry & Materials Science, Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials, Jiangsu Normal University, Xuzhou 221116, P. R. China
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13
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Huang MH, Hong Y, Hu JQ, Yang SZ, Zhu YL, Wang DC, Jiang B. Iron(III)-promoted hydrofunctionalization/bicyclization of 1,7-enynes toward benzo[a]fluoren-5-ones. Tetrahedron Lett 2020. [DOI: 10.1016/j.tetlet.2019.151507] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
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14
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Shen Z, Wang S, Hao W, Yang S, Tu S, Jiang B. Switching between Copper‐Catalysis and Photocatalysis for Tunable Halofluoroalkylation and Hydrofluoroalkylation of 1,6‐Enynes toward 1‐Indenones. Adv Synth Catal 2019. [DOI: 10.1002/adsc.201900559] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Zheng‐Jia Shen
- School of Chemistry and Material Science, Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional MaterialsJiangsu Normal University Xuzhou 221116 People's Republic of China
| | - Shi‐Chao Wang
- School of Chemistry and Material Science, Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional MaterialsJiangsu Normal University Xuzhou 221116 People's Republic of China
| | - Wen‐Juan Hao
- School of Chemistry and Material Science, Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional MaterialsJiangsu Normal University Xuzhou 221116 People's Republic of China
| | - Shi‐Zhao Yang
- Department of Quartermaster and FuelAir Force Logistic College Xuzhou 221000 People's Republic of China
| | - Shu‐Jiang Tu
- School of Chemistry and Material Science, Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional MaterialsJiangsu Normal University Xuzhou 221116 People's Republic of China
| | - Bo Jiang
- School of Chemistry and Material Science, Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional MaterialsJiangsu Normal University Xuzhou 221116 People's Republic of China
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15
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Yuan X, Zheng M, Di Z, Cui Y, Zhuang K, Qin L, Fang Z, Qiu J, Li G, Guo K. Photoredox‐Catalzyed Halo‐trifluoromethylation of 1,7‐Enynes for Synthesis of 3,4‐Dihydroquinolin‐2(1
H
)‐ones. Adv Synth Catal 2019. [DOI: 10.1002/adsc.201801681] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Affiliation(s)
- Xin Yuan
- Biotechnology and Pharmaceutical EngineeringNanjing Tech University Nanjing 211816 People's Republic of China
- Institute of Chemistry & Biomedical ScienceNanjing University Nanjing 210093 People's Republic of China
| | - Ming‐Wei Zheng
- Biotechnology and Pharmaceutical EngineeringNanjing Tech University Nanjing 211816 People's Republic of China
- Institute of Chemistry & Biomedical ScienceNanjing University Nanjing 210093 People's Republic of China
| | - Zhe‐Chen Di
- Biotechnology and Pharmaceutical EngineeringNanjing Tech University Nanjing 211816 People's Republic of China
| | - Yu‐Sheng Cui
- Biotechnology and Pharmaceutical EngineeringNanjing Tech University Nanjing 211816 People's Republic of China
| | - Kai‐Qiang Zhuang
- Biotechnology and Pharmaceutical EngineeringNanjing Tech University Nanjing 211816 People's Republic of China
| | - Long‐Zhou Qin
- Biotechnology and Pharmaceutical EngineeringNanjing Tech University Nanjing 211816 People's Republic of China
| | - Zheng Fang
- Biotechnology and Pharmaceutical EngineeringNanjing Tech University Nanjing 211816 People's Republic of China
| | - Jiang‐Kai Qiu
- Biotechnology and Pharmaceutical EngineeringNanjing Tech University Nanjing 211816 People's Republic of China
| | - Guigen Li
- Institute of Chemistry & Biomedical ScienceNanjing University Nanjing 210093 People's Republic of China
- Department of Chemistry and BiochemistryTexas Tech University Lubbock TX 79409-1061 USA
| | - Kai Guo
- Biotechnology and Pharmaceutical EngineeringNanjing Tech University Nanjing 211816 People's Republic of China
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16
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Liu B, Cheng J, Li Y, Li JH. Oxidative tandem annulation of 1-(2-ethynylaryl)prop-2-en-1-ones catalyzed by cooperative iodine and TBHP. Chem Commun (Camb) 2019; 55:667-670. [DOI: 10.1039/c8cc09271k] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Metal-free I2-catalyzed tandem annulation of 1,6-enynes to access 1H-cyclopropa-[b]naphthalene-2,7-diones using TBHP is presented.
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Affiliation(s)
- Bang Liu
- Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle
- Nanchang Hangkong University
- Nanchang 330063
- China
| | - Jiang Cheng
- School of Petrochemical Engineering
- Jiangsu Key Laboratory of Advanced Catalytic Materials & Technology
- Changzhou University
- Changzhou 213164
- China
| | - Yang Li
- Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle
- Nanchang Hangkong University
- Nanchang 330063
- China
| | - Jin-Heng Li
- Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle
- Nanchang Hangkong University
- Nanchang 330063
- China
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17
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Zhang Y, Zhang S, Xu G, Li M, Tang C, Fan W. Cu-Catalyzed carbamoylation versus amination of quinoline N-oxide with formamides. Org Biomol Chem 2019; 17:309-314. [DOI: 10.1039/c8ob02844c] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
Carbamoylation and amination of quinoline with formamides was developed via copper-catalyzed C–C and C–N bond formations.
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Affiliation(s)
- Yan Zhang
- School of Pharmaceutical Science
- Jiangnan University
- Wuxi 214122
- P. R. China
| | - Shiwei Zhang
- School of Pharmaceutical Science
- Jiangnan University
- Wuxi 214122
- P. R. China
| | - Guangxing Xu
- School of Pharmaceutical Science
- Jiangnan University
- Wuxi 214122
- P. R. China
| | - Min Li
- School of Pharmaceutical Science
- Jiangnan University
- Wuxi 214122
- P. R. China
| | - Chunlei Tang
- School of Pharmaceutical Science
- Jiangnan University
- Wuxi 214122
- P. R. China
| | - Weizheng Fan
- School of Pharmaceutical Science
- Jiangnan University
- Wuxi 214122
- P. R. China
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18
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Shen ZJ, Shi HN, Hao WJ, Tu SJ, Jiang B. Visible-light photocatalytic bicyclization of β-alkynyl propenones for accessing diastereoenriched syn-fluoren-9-ones. Chem Commun (Camb) 2018; 54:11542-11545. [PMID: 30175828 DOI: 10.1039/c8cc06086j] [Citation(s) in RCA: 48] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
A novel visible-light photocatalytic bicyclization of β-alkynyl propenones with α-bromocarbonyls for highly diastereoselective synthesis of richly decorated syn-fluoren-9-ones is described. The reaction proceeds via a radical-triggered 5-exo-dig cyclization/1,6-H-abstraction/6-endo-trig cyclization cascade and offers a new and practical method for the assembly of 6/5/6 carbocyclic skeletons via C(sp3)-H alkenylation.
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Affiliation(s)
- Zheng-Jia Shen
- School of Chemistry & Materials Science, Jiangsu Normal University, Xuzhou, 221116, P. R. China.
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