1
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Miao HJ, Zhang JH, Li W, Yang W, Xin H, Gao P, Duan XH, Guo LN. Aromatization-driven deconstructive functionalization of spiro dihydroquinazolinones via dual photoredox/nickel catalysis. Chem Sci 2024; 15:8993-8999. [PMID: 38873081 PMCID: PMC11168144 DOI: 10.1039/d4sc01111b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2024] [Accepted: 05/07/2024] [Indexed: 06/15/2024] Open
Abstract
Aromatization-driven deconstruction and functionalization of spiro dihydroquinazolinones via dual photoredox/nickel catalysis is developed. The aromatization effect was introduced to synergistically drive unstrained cyclic C-C bond cleavage, with the aim of overcoming the ring-size limitation of nitrogen-centered radical induced deconstruction of carbocycles. Herein, we demonstrate the synergistic photoredox/nickel catalyzed deconstructive cross-coupling of spiro dihydroquinazolinones with organic halides. Remarkably, structurally diverse organic halides including aryl, alkenyl, alkynyl, and alkyl bromides were compatible for the coupling. In addition, this protocol is also characterized by its mild and redox-neutral conditions, excellent functional group compatibility, high atom economy, and easy scalability. A telescoped procedure involving condensation and ring-opening/coupling was found to be accessible. This work provides a complementary strategy to the existing radical-mediated C-C bond cleavage of unstrained carbocycles.
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Affiliation(s)
- Hong-Jie Miao
- School of Chemistry, Xi'an Key Laboratory of Sustainable Energy Material Chemistry, Engineering Research Center of Energy Storage Materials and Devices, Ministry of Education, Xi'an Jiaotong University Xi'an 710049 China
| | - Jin-Hua Zhang
- School of Chemistry, Xi'an Key Laboratory of Sustainable Energy Material Chemistry, Engineering Research Center of Energy Storage Materials and Devices, Ministry of Education, Xi'an Jiaotong University Xi'an 710049 China
| | - Wenke Li
- School of Chemistry, Xi'an Key Laboratory of Sustainable Energy Material Chemistry, Engineering Research Center of Energy Storage Materials and Devices, Ministry of Education, Xi'an Jiaotong University Xi'an 710049 China
| | - Wenpeng Yang
- School of Chemistry, Xi'an Key Laboratory of Sustainable Energy Material Chemistry, Engineering Research Center of Energy Storage Materials and Devices, Ministry of Education, Xi'an Jiaotong University Xi'an 710049 China
| | - Hong Xin
- School of Chemistry, Xi'an Key Laboratory of Sustainable Energy Material Chemistry, Engineering Research Center of Energy Storage Materials and Devices, Ministry of Education, Xi'an Jiaotong University Xi'an 710049 China
| | - Pin Gao
- School of Chemistry, Xi'an Key Laboratory of Sustainable Energy Material Chemistry, Engineering Research Center of Energy Storage Materials and Devices, Ministry of Education, Xi'an Jiaotong University Xi'an 710049 China
| | - Xin-Hua Duan
- School of Chemistry, Xi'an Key Laboratory of Sustainable Energy Material Chemistry, Engineering Research Center of Energy Storage Materials and Devices, Ministry of Education, Xi'an Jiaotong University Xi'an 710049 China
| | - Li-Na Guo
- School of Chemistry, Xi'an Key Laboratory of Sustainable Energy Material Chemistry, Engineering Research Center of Energy Storage Materials and Devices, Ministry of Education, Xi'an Jiaotong University Xi'an 710049 China
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2
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Zhang JH, Miao HJ, Xin H, Wang G, Yang X, Wang X, Gao P, Duan XH, Guo LN. Photoredox-catalyzed alkylarylation of activated alkenes via a ring-opening/Truce-Smiles rearrangement cascade. Chem Commun (Camb) 2024; 60:5334-5337. [PMID: 38668748 DOI: 10.1039/d4cc01324g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/15/2024]
Abstract
A photoredox-catalyzed alkylarylation of activated alkenes via a radical C-C bond cleavage/Truce-Smiles rearrangement cascade is developed. The protocol features mild and redox-neutral conditions, broad substrate scope and excellent functional group compatibility, providing a facile and efficient approach to the long-chain distal keto-amides with all-carbon quaternary centers at the alpha position.
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Affiliation(s)
- Jin-Hua Zhang
- Department of Chemistry, School of Chemistry, Xi'an Key Laboratory of Sustainable Energy Material Chemistry and Engineering Research Center of Energy Storage Materials and Devices, Ministry of Education, Xi'an Jiaotong University, Xi'an 710049, China.
| | - Hong-Jie Miao
- Department of Chemistry, School of Chemistry, Xi'an Key Laboratory of Sustainable Energy Material Chemistry and Engineering Research Center of Energy Storage Materials and Devices, Ministry of Education, Xi'an Jiaotong University, Xi'an 710049, China.
| | - Hong Xin
- Department of Chemistry, School of Chemistry, Xi'an Key Laboratory of Sustainable Energy Material Chemistry and Engineering Research Center of Energy Storage Materials and Devices, Ministry of Education, Xi'an Jiaotong University, Xi'an 710049, China.
| | - Gang Wang
- Keshun waterproof technology CO., LTD, Foshan 528303, China
| | - Xiaoyu Yang
- Keshun waterproof technology CO., LTD, Foshan 528303, China
| | - Xianjun Wang
- Keshun waterproof technology CO., LTD, Foshan 528303, China
| | - Pin Gao
- Department of Chemistry, School of Chemistry, Xi'an Key Laboratory of Sustainable Energy Material Chemistry and Engineering Research Center of Energy Storage Materials and Devices, Ministry of Education, Xi'an Jiaotong University, Xi'an 710049, China.
| | - Xin-Hua Duan
- Department of Chemistry, School of Chemistry, Xi'an Key Laboratory of Sustainable Energy Material Chemistry and Engineering Research Center of Energy Storage Materials and Devices, Ministry of Education, Xi'an Jiaotong University, Xi'an 710049, China.
| | - Li-Na Guo
- Department of Chemistry, School of Chemistry, Xi'an Key Laboratory of Sustainable Energy Material Chemistry and Engineering Research Center of Energy Storage Materials and Devices, Ministry of Education, Xi'an Jiaotong University, Xi'an 710049, China.
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3
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An Z, Miao M, Sun F, Lan XB, Yu JQ, Guo X, Zhang J. Copper-catalyzed oxidative cyclization of 2-(1 H-pyrrol-1-yl)aniline and alkylsilyl peroxides: a route to pyrrolo[1,2- a]quinoxalines. Org Biomol Chem 2024; 22:2370-2374. [PMID: 38416487 DOI: 10.1039/d3ob01934a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/29/2024]
Abstract
An efficient method was developed for the one-pot construction of pyrrolo[1,2-a]quinoxalines via a Cu(II)-catalyzed domino reaction between 2-(1H-pyrrol-1-yl)anilines and alkylsilyl peroxides. This reaction proceeds through C-C bond cleavage and new C-C and C-N bond formation. A mechanistic study suggests that alkyl radical species participate in the cascade reaction.
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Affiliation(s)
- Zhenyu An
- College of Pharmacy, Key Laboratory of Protection, Development and Utilization of Medicinal Resources in Liupanshan Area, Ministry of Education, Ningxia Medical University, Yinchuan, Ningxia Hui Autonomous Region, China.
| | - Man Miao
- College of Pharmacy, Key Laboratory of Protection, Development and Utilization of Medicinal Resources in Liupanshan Area, Ministry of Education, Ningxia Medical University, Yinchuan, Ningxia Hui Autonomous Region, China.
| | - Fengkai Sun
- College of Pharmacy, Key Laboratory of Protection, Development and Utilization of Medicinal Resources in Liupanshan Area, Ministry of Education, Ningxia Medical University, Yinchuan, Ningxia Hui Autonomous Region, China.
| | - Xiao-Bing Lan
- College of Pharmacy, Key Laboratory of Protection, Development and Utilization of Medicinal Resources in Liupanshan Area, Ministry of Education, Ningxia Medical University, Yinchuan, Ningxia Hui Autonomous Region, China.
| | - Jian-Qiang Yu
- College of Pharmacy, Key Laboratory of Protection, Development and Utilization of Medicinal Resources in Liupanshan Area, Ministry of Education, Ningxia Medical University, Yinchuan, Ningxia Hui Autonomous Region, China.
| | - Xiaoli Guo
- College of Pharmacy, Key Laboratory of Protection, Development and Utilization of Medicinal Resources in Liupanshan Area, Ministry of Education, Ningxia Medical University, Yinchuan, Ningxia Hui Autonomous Region, China.
| | - Jian Zhang
- College of Pharmacy, Key Laboratory of Protection, Development and Utilization of Medicinal Resources in Liupanshan Area, Ministry of Education, Ningxia Medical University, Yinchuan, Ningxia Hui Autonomous Region, China.
- Medicinal Chemistry and Bioinformatics Center, Shanghai Jiao Tong University School of Medicine, Shanghai, China
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4
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Liu C, Wang J, Liu X, Feng J, Du D. NHC-catalyzed radical acylation of cycloalkyl silyl peroxides to access 1,6-,1,7-, and 1,8-diketones. Chem Commun (Camb) 2023; 59:13175-13178. [PMID: 37850247 DOI: 10.1039/d3cc04765b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2023]
Abstract
An unprecedented N-heterocyclic carbene (NHC)-catalyzed radical acylation of cycloalkyl silyl peroxides was developed using readily available aldehydes as the acylating agents. This protocol provides an exceptionally useful method for the efficient and rapid synthesis of long-chain 1,6-/1,7-/1,8-diketones, especially unsymmetrical ones. This strategy also has the advantages of mild conditions, good functional group compatibility, and potential applications in the late-stage functionalization of aldehydes with bioactive fragments and in the construction of long-chain complex bioactive molecules.
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Affiliation(s)
- Chaolei Liu
- State Key Laboratory of Natural Medicines, School of Science, China Pharmaceutical University, Nanjing 210009, P. R. China.
| | - Jingyi Wang
- State Key Laboratory of Natural Medicines, School of Science, China Pharmaceutical University, Nanjing 210009, P. R. China.
| | - Xinlong Liu
- State Key Laboratory of Natural Medicines, School of Science, China Pharmaceutical University, Nanjing 210009, P. R. China.
| | - Jie Feng
- State Key Laboratory of Natural Medicines, School of Science, China Pharmaceutical University, Nanjing 210009, P. R. China.
| | - Ding Du
- State Key Laboratory of Natural Medicines, School of Science, China Pharmaceutical University, Nanjing 210009, P. R. China.
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5
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Zhang TY, Wu Y, Liu S, Tao JQ, Yang X, Wang XQ, Duan XH, Guo LN. Iron-Catalyzed Alkoxyl Radical-Induced C-C Bond Cleavage/ gem-Difluoroalkylation Cascade. Org Lett 2023. [PMID: 37262417 DOI: 10.1021/acs.orglett.3c01427] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
An inexpensive iron-catalyzed alkoxyl radical-induced C-C bond cleavage/gem-difluoroalkylation cascade is presented. Regulated by the structure of alkoxyl radical precursors, fluorinated distal diketones were synthesized through a ring-opening strategy and difluoroalkylated medium-sized lactones and macrolactones were constructed via a ring-expansion strategy. Both protocols proceeded under mild and redox neutral conditions with a broad substrate scope and good functional group compatibility.
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Affiliation(s)
- Tian-Yu Zhang
- Department of Chemistry, School of Chemistry, Xi'an Key Laboratory of Sustainable Energy Material Chemistry and Engineering Research Center of Energy Storage Materials and Devices, Ministry of Education, Xi'an Jiaotong University, Xi'an 710049, P. R. China
| | - Yong Wu
- Department of Chemistry, School of Chemistry, Xi'an Key Laboratory of Sustainable Energy Material Chemistry and Engineering Research Center of Energy Storage Materials and Devices, Ministry of Education, Xi'an Jiaotong University, Xi'an 710049, P. R. China
| | - Shuai Liu
- Department of Chemistry, School of Chemistry, Xi'an Key Laboratory of Sustainable Energy Material Chemistry and Engineering Research Center of Energy Storage Materials and Devices, Ministry of Education, Xi'an Jiaotong University, Xi'an 710049, P. R. China
| | - Jing-Qi Tao
- Department of Chemistry, School of Chemistry, Xi'an Key Laboratory of Sustainable Energy Material Chemistry and Engineering Research Center of Energy Storage Materials and Devices, Ministry of Education, Xi'an Jiaotong University, Xi'an 710049, P. R. China
| | - Xu Yang
- School of Electrical Engineering, Xi'an Jiaotong University, Xi'an 710049, P. R. China
| | - Xue-Qi Wang
- Department of Chemistry, School of Chemistry, Xi'an Key Laboratory of Sustainable Energy Material Chemistry and Engineering Research Center of Energy Storage Materials and Devices, Ministry of Education, Xi'an Jiaotong University, Xi'an 710049, P. R. China
| | - Xin-Hua Duan
- Department of Chemistry, School of Chemistry, Xi'an Key Laboratory of Sustainable Energy Material Chemistry and Engineering Research Center of Energy Storage Materials and Devices, Ministry of Education, Xi'an Jiaotong University, Xi'an 710049, P. R. China
- School of Electrical Engineering, Xi'an Jiaotong University, Xi'an 710049, P. R. China
| | - Li-Na Guo
- Department of Chemistry, School of Chemistry, Xi'an Key Laboratory of Sustainable Energy Material Chemistry and Engineering Research Center of Energy Storage Materials and Devices, Ministry of Education, Xi'an Jiaotong University, Xi'an 710049, P. R. China
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6
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Liu S, Ma P, Zhang L, Shen S, Miao HJ, Liu L, Houk KN, Duan XH, Guo LN. A cheap metal catalyzed ring expansion/cross-coupling cascade: a new route to functionalized medium-sized and macrolactones. Chem Sci 2023; 14:5220-5225. [PMID: 37206389 PMCID: PMC10189895 DOI: 10.1039/d2sc06157k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2022] [Accepted: 04/15/2023] [Indexed: 05/21/2023] Open
Abstract
An efficient alkoxyl radical-triggered ring expansion/cross-coupling cascade was developed under cheap metal catalysis. Through the metal-catalyzed radical relay strategy, a wide range of medium-sized lactones (9-11 membered) and macrolactones (12, 13, 15, 18, and 19-membered) were constructed in moderate to good yields, along with diverse functional groups including CN, N3, SCN, and X groups installed concurrently. Density functional theory (DFT) calculations revealed that reductive elimination of the cycloalkyl-Cu(iii) species is a more favorable reaction pathway for the cross-coupling step. Based on the results of experiments and DFT, a Cu(i)/Cu(ii)/Cu(iii) catalytic cycle is proposed for this tandem reaction.
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Affiliation(s)
- Shuai Liu
- Department of Chemistry, School of Chemistry, Xi'an Key Laboratory of Sustainable Energy Material Chemistry and Engineering Research Center of Energy Storage Materials and Devices, Ministry of Education, Xi'an Jiaotong University Xi'an 710049 China
| | - Pengchen Ma
- Department of Chemistry, School of Chemistry, Xi'an Key Laboratory of Sustainable Energy Material Chemistry and Engineering Research Center of Energy Storage Materials and Devices, Ministry of Education, Xi'an Jiaotong University Xi'an 710049 China
- Department of Chemistry and Biochemistry, University of California Los Angeles California 90095-1569 USA
| | - Lu Zhang
- Department of Chemistry, School of Chemistry, Xi'an Key Laboratory of Sustainable Energy Material Chemistry and Engineering Research Center of Energy Storage Materials and Devices, Ministry of Education, Xi'an Jiaotong University Xi'an 710049 China
| | - Shenyu Shen
- Department of Chemistry, School of Chemistry, Xi'an Key Laboratory of Sustainable Energy Material Chemistry and Engineering Research Center of Energy Storage Materials and Devices, Ministry of Education, Xi'an Jiaotong University Xi'an 710049 China
| | - Hong-Jie Miao
- Department of Chemistry, School of Chemistry, Xi'an Key Laboratory of Sustainable Energy Material Chemistry and Engineering Research Center of Energy Storage Materials and Devices, Ministry of Education, Xi'an Jiaotong University Xi'an 710049 China
| | - Le Liu
- Department of Chemistry, School of Chemistry, Xi'an Key Laboratory of Sustainable Energy Material Chemistry and Engineering Research Center of Energy Storage Materials and Devices, Ministry of Education, Xi'an Jiaotong University Xi'an 710049 China
| | - K N Houk
- Department of Chemistry and Biochemistry, University of California Los Angeles California 90095-1569 USA
| | - Xin-Hua Duan
- Department of Chemistry, School of Chemistry, Xi'an Key Laboratory of Sustainable Energy Material Chemistry and Engineering Research Center of Energy Storage Materials and Devices, Ministry of Education, Xi'an Jiaotong University Xi'an 710049 China
| | - Li-Na Guo
- Department of Chemistry, School of Chemistry, Xi'an Key Laboratory of Sustainable Energy Material Chemistry and Engineering Research Center of Energy Storage Materials and Devices, Ministry of Education, Xi'an Jiaotong University Xi'an 710049 China
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7
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Liu S, Zhang L, Xu L, Gao P, Duan XH, Guo LN. Fe-Catalyzed Alkylazidation of α-Trifluoromethylalkenes: An Access to Quaternary Stereocenters Containing CF 3 and N 3 Groups. Org Lett 2023. [PMID: 36815835 DOI: 10.1021/acs.orglett.3c00439] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/24/2023]
Abstract
A concise Fe-catalyzed alkylazidation of α-trifluoromethylalkenes via a C-C bond cleavage/radical addition/azidation cascade is described. This protocol features a broad substrate scope, excellent functional group compatibility, and the ability to be performed on a gram scale, thus offering a practical and step-economic approach to the synthetically useful tertiary α-trifluoromethyl azides.
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Affiliation(s)
- Shuai Liu
- Department of Chemistry, School of Chemistry, Xi'an Key Laboratory of Sustainable Energy Material Chemistry and Engineering Research Center of Energy Storage Materials and Devices, Ministry of Education, Xi'an Jiaotong University, Xi'an, Shaanxi 710049, China
| | - Lu Zhang
- Department of Chemistry, School of Chemistry, Xi'an Key Laboratory of Sustainable Energy Material Chemistry and Engineering Research Center of Energy Storage Materials and Devices, Ministry of Education, Xi'an Jiaotong University, Xi'an, Shaanxi 710049, China
| | - Liang Xu
- School of Chemistry and Chemical Engineering, Key Laboratory for Green Processing of Chemical Engineering of Xin-jiang Bingtuan, Shihezi University, Shihezi, Xinjiang 832003, China
| | - Pin Gao
- Department of Chemistry, School of Chemistry, Xi'an Key Laboratory of Sustainable Energy Material Chemistry and Engineering Research Center of Energy Storage Materials and Devices, Ministry of Education, Xi'an Jiaotong University, Xi'an, Shaanxi 710049, China
| | - Xin-Hua Duan
- Department of Chemistry, School of Chemistry, Xi'an Key Laboratory of Sustainable Energy Material Chemistry and Engineering Research Center of Energy Storage Materials and Devices, Ministry of Education, Xi'an Jiaotong University, Xi'an, Shaanxi 710049, China
| | - Li Na Guo
- Department of Chemistry, School of Chemistry, Xi'an Key Laboratory of Sustainable Energy Material Chemistry and Engineering Research Center of Energy Storage Materials and Devices, Ministry of Education, Xi'an Jiaotong University, Xi'an, Shaanxi 710049, China
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8
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Dworkin JH, Dehnert BW, Kwon O. When all C-C breaks LO-Ose. TRENDS IN CHEMISTRY 2023; 5:174-200. [PMID: 38108020 PMCID: PMC10725311 DOI: 10.1016/j.trechm.2023.01.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/16/2023]
Abstract
Organic peroxides are becoming popular intermediates for novel chemical transformations. The weak O-O bond is readily reduced by transition metals, including iron and copper, to initiate a radical cascade process that breaks C-C bonds. Great potential exists for the rapid generation of complexity, originating from the ability to couple the resulting free radicals with a wide range of partners. First, this review article discusses the history and synthesis of organic peroxides, providing the context necessary to understand this methodology. Then, it highlights 91 examples of recent applications of the radical functionalization of C-C bonds accessed through the transition metal-mediated reduction of organic peroxides. Finally, we provide some comments about safety when working with organic peroxides.
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Affiliation(s)
- Jeremy H. Dworkin
- Department of Chemistry and Biochemistry, University of California, Los Angeles, CA 90095-1569, USA
| | - Brady W. Dehnert
- Department of Chemistry and Biochemistry, University of California, Los Angeles, CA 90095-1569, USA
| | - Ohyun Kwon
- Department of Chemistry and Biochemistry, University of California, Los Angeles, CA 90095-1569, USA
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9
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Ying Y, Ye Z, Wang A, Chen X, Meng S, Xu P, Gao Y, Zhao Y. Nickel-Catalyzed Radical Ring-Opening Phosphorylation of Cycloalkyl Hydroperoxides Leading to Distal Acylphosphine Oxides. Org Lett 2023; 25:928-932. [PMID: 36729387 DOI: 10.1021/acs.orglett.2c04233] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
A facile and efficient nickel-catalyzed C-C bond cleavage/phosphorylation of various cycloalkyl hydroperoxides was developed. This radical ring-opening strategy provided practical access to structurally diverse distal ketophosphine oxides in one pot through concurrent C═O/C-P bond formation with high atom economy under mild room temperature and base-free conditions.
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Affiliation(s)
- Yue Ying
- Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, Fujian, China
| | - Ziyi Ye
- Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, Fujian, China
| | - An Wang
- Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, Fujian, China
| | - Xingjie Chen
- Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, Fujian, China
| | - Shanshan Meng
- State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics and Center for Molecular Imaging and Translational Medicine, School of Public Health, Xiamen University, Xiamen 361102, Fujian, China
| | - Pengxiang Xu
- Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, Fujian, China
| | - Yuxing Gao
- Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, Fujian, China
| | - Yufen Zhao
- Department of Chemistry and Key Laboratory for Chemical Biology of Fujian Province, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, Fujian, China
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10
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Zhou M, Lu H, Wang Z, Kato T, Liu Y, Maruoka K. Synthesis of 1,3‑dicarbonyl compounds bearing hetero-substituted α-quaternary carbon via Fe(II)-catalyzed alkylation with alkylsilyl peroxides. Tetrahedron Lett 2022. [DOI: 10.1016/j.tetlet.2022.154176] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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11
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Yao J, Hu D, Zhang JQ, Zhang Y, Ma X, Liu J, Wang J, Ni B, Ren H. Ring-Opening Selenation of Cyclopropanol for the Selective Synthesis of β-Hydroxy-Substituted Selenylated Ketones. J Org Chem 2022; 87:14685-14694. [DOI: 10.1021/acs.joc.2c02004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Jun Yao
- Advanced Research Institute and Department of Chemistry, Taizhou University, Jiaojiang 318000, China
| | - Dandan Hu
- Advanced Research Institute and Department of Chemistry, Taizhou University, Jiaojiang 318000, China
| | - Jun-Qi Zhang
- Advanced Research Institute and Department of Chemistry, Taizhou University, Jiaojiang 318000, China
| | - Yili Zhang
- Advanced Research Institute and Department of Chemistry, Taizhou University, Jiaojiang 318000, China
| | - Xinyi Ma
- Advanced Research Institute and Department of Chemistry, Taizhou University, Jiaojiang 318000, China
| | - Jiang Liu
- Advanced Research Institute and Department of Chemistry, Taizhou University, Jiaojiang 318000, China
| | - Jiali Wang
- Advanced Research Institute and Department of Chemistry, Taizhou University, Jiaojiang 318000, China
| | - Bukuo Ni
- Department of Chemistry, Texas A&M University-Commerce, Commerce, Texas 75429-3011, United States
| | - Hongjun Ren
- Advanced Research Institute and Department of Chemistry, Taizhou University, Jiaojiang 318000, China
- School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang 453000, China
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12
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Lu H, Zhou C, Wang Z, Kato T, Liu Y, Maruoka K. Fe-Catalyzed Three-Component Coupling Reaction of α,β,γ,δ-Unsaturated Carbonyl Compounds and Conjugate Dienes with Alkylsilyl Peroxides and Nucleophiles. J Org Chem 2022; 87:8824-8834. [PMID: 35731735 DOI: 10.1021/acs.joc.2c00885] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
An Fe(OTf)2-catalyzed three-component coupling reaction of α,β,γ,δ-unsaturated carbonyl compounds with alkylsilyl peroxides in the presence of certain heteronucleophiles (ROH and indole) is realized under mild reaction conditions. A variety of α,β,γ,δ-diene carbonyl substrates with different substituents were successfully employable via combination with several different alkylsilyl peroxides. This new approach is also applicable to the double functionalization of diene substrates.
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Affiliation(s)
- Hanbin Lu
- School of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou 510006, China
| | - Canhua Zhou
- School of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou 510006, China
| | - Zhe Wang
- School of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou 510006, China
| | - Terumasa Kato
- School of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou 510006, China.,Guangdong Provincial Key Laboratory of Plant Resources Biorefinery, Guangdong University of Technology, Guangzhou 510006, China.,Graduate School of Pharmaceutical Sciences, Kyoto University, Sakyo 606-8501, Kyoto, Japan
| | - Yan Liu
- School of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou 510006, China.,Guangdong Provincial Key Laboratory of Plant Resources Biorefinery, Guangdong University of Technology, Guangzhou 510006, China
| | - Keiji Maruoka
- School of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou 510006, China.,Guangdong Provincial Key Laboratory of Plant Resources Biorefinery, Guangdong University of Technology, Guangzhou 510006, China.,Graduate School of Pharmaceutical Sciences, Kyoto University, Sakyo 606-8501, Kyoto, Japan
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13
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Wang M, Tao J, Yang F, Xin H, Gao S, Guo L, Gao P. Iron‐Catalyzed Ring‐Opening/Allylation of Cycloalkyl Hydroperoxides with Allylic Sulfones. ASIAN J ORG CHEM 2022. [DOI: 10.1002/ajoc.202200001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Ming‐Hua Wang
- Department of Chemistry School of Chemistry Xi'an Key Laboratory of Sustainable Energy Material Chemistry MOE Key Laboratory for Nonequilibrium Synthesis and Modulation of Condensed Matter Xi'an Jiaotong University No.28, Xianning West Road Xi'an 710049 P. R. China
| | - Jing‐Qi Tao
- Department of Chemistry School of Chemistry Xi'an Key Laboratory of Sustainable Energy Material Chemistry MOE Key Laboratory for Nonequilibrium Synthesis and Modulation of Condensed Matter Xi'an Jiaotong University No.28, Xianning West Road Xi'an 710049 P. R. China
| | - Fan Yang
- Department of Chemistry School of Chemistry Xi'an Key Laboratory of Sustainable Energy Material Chemistry MOE Key Laboratory for Nonequilibrium Synthesis and Modulation of Condensed Matter Xi'an Jiaotong University No.28, Xianning West Road Xi'an 710049 P. R. China
| | - Hong Xin
- Department of Chemistry School of Chemistry Xi'an Key Laboratory of Sustainable Energy Material Chemistry MOE Key Laboratory for Nonequilibrium Synthesis and Modulation of Condensed Matter Xi'an Jiaotong University No.28, Xianning West Road Xi'an 710049 P. R. China
| | - Shu‐Xin Gao
- Department of Chemistry School of Chemistry Xi'an Key Laboratory of Sustainable Energy Material Chemistry MOE Key Laboratory for Nonequilibrium Synthesis and Modulation of Condensed Matter Xi'an Jiaotong University No.28, Xianning West Road Xi'an 710049 P. R. China
| | - Li‐Na Guo
- Department of Chemistry School of Chemistry Xi'an Key Laboratory of Sustainable Energy Material Chemistry MOE Key Laboratory for Nonequilibrium Synthesis and Modulation of Condensed Matter Xi'an Jiaotong University No.28, Xianning West Road Xi'an 710049 P. R. China
| | - Pin Gao
- Department of Chemistry School of Chemistry Xi'an Key Laboratory of Sustainable Energy Material Chemistry MOE Key Laboratory for Nonequilibrium Synthesis and Modulation of Condensed Matter Xi'an Jiaotong University No.28, Xianning West Road Xi'an 710049 P. R. China
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14
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Guo LN, Yuan ZH, Hong X, Tao JQ, Ma YJ, Duan XH. Thermo-Induced Decarboxylative α-C(sp3)−H Fluoroalkylation of Glycine Derivatives with Fluorinated Peroxy Esters. Org Chem Front 2022. [DOI: 10.1039/d2qo00613h] [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
A thermo-induced decarboxylative α-C(sp3)−H fluoroalkylation of glycine derivatives with fluorinated peroxy esters was described. This protocol features transition metal free, redox-neutral conditions, broad substrate scope and excellent functional group tolerance,...
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15
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Bose SK, Mao L, Kuehn L, Radius U, Nekvinda J, Santos WL, Westcott SA, Steel PG, Marder TB. First-Row d-Block Element-Catalyzed Carbon-Boron Bond Formation and Related Processes. Chem Rev 2021; 121:13238-13341. [PMID: 34618418 DOI: 10.1021/acs.chemrev.1c00255] [Citation(s) in RCA: 96] [Impact Index Per Article: 32.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
Organoboron reagents represent a unique class of compounds because of their utility in modern synthetic organic chemistry, often affording unprecedented reactivity. The transformation of the carbon-boron bond into a carbon-X (X = C, N, and O) bond in a stereocontrolled fashion has become invaluable in medicinal chemistry, agrochemistry, and natural products chemistry as well as materials science. Over the past decade, first-row d-block transition metals have become increasingly widely used as catalysts for the formation of a carbon-boron bond, a transformation traditionally catalyzed by expensive precious metals. This recent focus on alternative transition metals has enabled growth in fundamental methods in organoboron chemistry. This review surveys the current state-of-the-art in the use of first-row d-block element-based catalysts for the formation of carbon-boron bonds.
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Affiliation(s)
- Shubhankar Kumar Bose
- Centre for Nano and Material Sciences (CNMS), Jain University, Jain Global Campus, Bangalore-562112, India
| | - Lujia Mao
- Key Laboratory of Tropical Translational Medicine of Ministry of Education, Hainan Key Laboratory for Research and Development of Tropical Herbs, School of Pharmacy, Hainan Medical University, 571199 Haikou, Hainan, P. R. China
| | - Laura Kuehn
- Institute of Inorganic Chemistry and Institute for Sustainable Chemistry & Catalysis with Boron, Julius-Maximilians-Universität Würzburg, Am Hubland, 97074 Würzburg, Germany
| | - Udo Radius
- Institute of Inorganic Chemistry and Institute for Sustainable Chemistry & Catalysis with Boron, Julius-Maximilians-Universität Würzburg, Am Hubland, 97074 Würzburg, Germany
| | - Jan Nekvinda
- Department of Chemistry, Virginia Tech, Blacksburg, Virginia 24061, United States
| | - Webster L Santos
- Department of Chemistry, Virginia Tech, Blacksburg, Virginia 24061, United States
| | - Stephen A Westcott
- Department of Chemistry and Biochemistry, Mount Allison University, Sackville, NB E4L 1G8, Canada
| | - Patrick G Steel
- Department of Chemistry, University of Durham, Science Laboratories South Road, Durham DH1 3LE, U.K
| | - Todd B Marder
- Institute of Inorganic Chemistry and Institute for Sustainable Chemistry & Catalysis with Boron, Julius-Maximilians-Universität Würzburg, Am Hubland, 97074 Würzburg, Germany
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16
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Zhou C, Lv J, Xu W, Lu H, Kato T, Liu Y, Maruoka K. Highly Selective Monoalkylation of Active Methylene and Related Derivatives using Alkylsilyl Peroxides by a Catalytic CuI‐DMAP System. ASIAN J ORG CHEM 2021. [DOI: 10.1002/ajoc.202100440] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Canhua Zhou
- School of Chemical Engineering and Light Industry Guangdong University of Technology Guangzhou 510006 P. R. China
| | - Jiamin Lv
- School of Chemical Engineering and Light Industry Guangdong University of Technology Guangzhou 510006 P. R. China
| | - Weiping Xu
- School of Chemical Engineering and Light Industry Guangdong University of Technology Guangzhou 510006 P. R. China
| | - Hanbin Lu
- School of Chemical Engineering and Light Industry Guangdong University of Technology Guangzhou 510006 P. R. China
| | - Terumasa Kato
- School of Chemical Engineering and Light Industry Guangdong University of Technology Guangzhou 510006 P. R. China
- Guangdong Provincial Key Laboratory of Plant Resources Biorefinery Guangdong University of Technology Guangzhou 510006 P. R. China
- Graduate School of Pharmaceutical Sciences Kyoto University Sakyo Kyoto 606-8501 Japan
| | - Yan Liu
- School of Chemical Engineering and Light Industry Guangdong University of Technology Guangzhou 510006 P. R. China
- Guangdong Provincial Key Laboratory of Plant Resources Biorefinery Guangdong University of Technology Guangzhou 510006 P. R. China
| | - Keiji Maruoka
- School of Chemical Engineering and Light Industry Guangdong University of Technology Guangzhou 510006 P. R. China
- Guangdong Provincial Key Laboratory of Plant Resources Biorefinery Guangdong University of Technology Guangzhou 510006 P. R. China
- Graduate School of Pharmaceutical Sciences Kyoto University Sakyo Kyoto 606-8501 Japan
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17
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Sun QX, Chen H, Liu S, Wang XQ, Duan XH, Guo LN. Iron-Catalyzed Thiolation and Selenylation of Cycloalkyl Hydroperoxides via C-C Bond Cleavage. J Org Chem 2021; 86:11987-11997. [PMID: 34374284 DOI: 10.1021/acs.joc.1c01366] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
A cheap iron-catalyzed C-C bond cleavage/thiolation and selenylation of cycloalkyl hydroperoxides are presented. This redox-neutral protocol provides efficient access to diverse distal keto-functionalized thioethers and selenium compounds. Remarkably, only some amounts of disulfides are required for this transformation.
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Affiliation(s)
- Qing-Xin Sun
- Department of Chemistry, School of Chemistry, Xi'an Key Laboratory of Sustainable Energy Material Chemistry, and MOE Key Laboratory for Nonequilibrium Synthesis and Modulation of Condensed Matter, Xi'an Jiaotong University, Xi'an 710049, China
| | - He Chen
- Department of Chemistry, School of Chemistry, Xi'an Key Laboratory of Sustainable Energy Material Chemistry, and MOE Key Laboratory for Nonequilibrium Synthesis and Modulation of Condensed Matter, Xi'an Jiaotong University, Xi'an 710049, China
| | - Shuai Liu
- Department of Chemistry, School of Chemistry, Xi'an Key Laboratory of Sustainable Energy Material Chemistry, and MOE Key Laboratory for Nonequilibrium Synthesis and Modulation of Condensed Matter, Xi'an Jiaotong University, Xi'an 710049, China
| | - Xiao-Qiang Wang
- Department of Chemistry, School of Chemistry, Xi'an Key Laboratory of Sustainable Energy Material Chemistry, and MOE Key Laboratory for Nonequilibrium Synthesis and Modulation of Condensed Matter, Xi'an Jiaotong University, Xi'an 710049, China
| | - Xin-Hua Duan
- Department of Chemistry, School of Chemistry, Xi'an Key Laboratory of Sustainable Energy Material Chemistry, and MOE Key Laboratory for Nonequilibrium Synthesis and Modulation of Condensed Matter, Xi'an Jiaotong University, Xi'an 710049, China.,State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou 730000, P. R. China
| | - Li-Na Guo
- Department of Chemistry, School of Chemistry, Xi'an Key Laboratory of Sustainable Energy Material Chemistry, and MOE Key Laboratory for Nonequilibrium Synthesis and Modulation of Condensed Matter, Xi'an Jiaotong University, Xi'an 710049, China
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18
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Matsumoto A, Shiozaki Y, Sakurai S, Maruoka K. Synthesis of Functionalized Aliphatic Acid Esters via the Generation of Alkyl Radicals from Silylperoxyacetals. Chem Asian J 2021; 16:2431-2434. [PMID: 34278735 DOI: 10.1002/asia.202100723] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2021] [Revised: 07/16/2021] [Indexed: 12/28/2022]
Abstract
We describe a catalytic method for the synthesis of a variety of functionalized aliphatic acid esters using silylperoxyacetals, which are versatile alkyl radical precursors with a terminal ester moiety. In the presence of an appropriate transition-metal catalyst, the in situ generation of alkyl radicals and the subsequent bond-forming process proceeds smoothly to afford synthetically valuable aliphatic acid derivatives. The present method can be applied to the efficient synthesis of a pharmaceutically important 1,1-diarylalkane motif. In addition, a novel strategy for the synthesis of structurally diverse hydroxy acid derivatives via a C-O bond formation process that utilizes TEMPO has been developed.
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Affiliation(s)
- Akira Matsumoto
- Graduate School of Pharmaceutical Sciences, Kyoto University, Sakyo, 606-8501, Kyoto, Japan
| | - Yoko Shiozaki
- Department of Chemistry, Graduate School of Science, Kyoto University, Sakyo, 606-8502, Kyoto, Japan
| | - Shunya Sakurai
- Department of Chemistry, Graduate School of Science, Kyoto University, Sakyo, 606-8502, Kyoto, Japan
| | - Keiji Maruoka
- Graduate School of Pharmaceutical Sciences, Kyoto University, Sakyo, 606-8501, Kyoto, Japan.,Department of Chemistry, Graduate School of Science, Kyoto University, Sakyo, 606-8502, Kyoto, Japan.,School of Chemical Engineering and Light Industry, Guangdong University of Technology, 510006, Guangzhou, P. R. China
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19
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Liu S, Bai M, Xu PF, Sun QX, Duan XH, Guo LN. Copper-catalyzed radical ring-opening halogenation with HX. Chem Commun (Camb) 2021; 57:8652-8655. [PMID: 34373865 DOI: 10.1039/d1cc03013b] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
An efficient copper-catalyzed radical ring-opening halogenation with HX (aq) is described. This protocol features redox-neutral conditions, green halogen sources, and a broad substrate scope, providing practical access to distally chlorinated, brominated and iodinated alkyl ketones and alkyl nitriles with moderate to good yields.
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Affiliation(s)
- Shuai Liu
- Department of Chemistry, School of Chemistry, Xi'an Key Laboratory of Sustainable Energy Material Chemistry and MOE Key Laboratory for Nonequilibrium Synthesis and Modulation of Condensed Matter, Xi'an Jiaotong University, Xi'an 710049, China.
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20
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Xu W, Liu Y, Kato T, Maruoka K. The Formation of C-C or C-N Bonds via the Copper-Catalyzed Coupling of Alkylsilyl Peroxides and Organosilicon Compounds: A Route to Perfluoroalkylation. Org Lett 2021; 23:1809-1813. [PMID: 33625231 DOI: 10.1021/acs.orglett.1c00215] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
The copper-catalyzed selective cleavage of alkylsilyl peroxides and the subsequent formation of carbon-carbon or carbon-nitrogen bonds with organosilicon compounds are described. The reaction proceeds under mild conditions and exhibits a broad substrate scope with respect to both cyclic and acyclic alkylsilyl peroxides in combination with carbon and nitrogen sources. In particular, this approach enables the facile radical perfluoroalkylation using commercially available perfluoroalkyltrimethylsilanes. Our mechanistic studies suggest that the reaction should proceed via a free-radical process.
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Affiliation(s)
- Weiping Xu
- School of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou 510006, China
| | - Yan Liu
- School of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou 510006, China
| | - Terumasa Kato
- School of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou 510006, China
| | - Keiji Maruoka
- School of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou 510006, China.,Graduate School of Pharmaceutical Sciences, Kyoto University, Sakyo, Kyoto 606-8501, Japan
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21
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22
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Chen H, Guo LN, Sun QX, Chen L, Tao JQ, Gao P. Copper-catalyzed redox neutral ketoalkylation of Csp 2–H bonds via C–C bond cleavage. Org Chem Front 2021. [DOI: 10.1039/d1qo00882j] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
An efficient copper-catalyzed ketoalkylation of Csp2–H bonds with cycloalkyl silyl peroxides under mild conditions is presented. A series of Csp2–H bonds in quinoxalin-2(1H)-ones, heteroaromatic N-oxides and quinones were amenable to this protocol.
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Affiliation(s)
- He Chen
- Department of Chemistry, School of Chemistry, Xi'an Key Laboratory of Sustainable Energy Material Chemistry, and MOE Key Laboratory for Nonequilibrium Synthesis and Modulation of Condensed Matter, Xi'an Jiaotong University, Xi'an 710049, China
| | - Li-Na Guo
- Department of Chemistry, School of Chemistry, Xi'an Key Laboratory of Sustainable Energy Material Chemistry, and MOE Key Laboratory for Nonequilibrium Synthesis and Modulation of Condensed Matter, Xi'an Jiaotong University, Xi'an 710049, China
| | - Qing-Xin Sun
- Department of Chemistry, School of Chemistry, Xi'an Key Laboratory of Sustainable Energy Material Chemistry, and MOE Key Laboratory for Nonequilibrium Synthesis and Modulation of Condensed Matter, Xi'an Jiaotong University, Xi'an 710049, China
| | - Lei Chen
- Department of Chemistry, School of Chemistry, Xi'an Key Laboratory of Sustainable Energy Material Chemistry, and MOE Key Laboratory for Nonequilibrium Synthesis and Modulation of Condensed Matter, Xi'an Jiaotong University, Xi'an 710049, China
| | - Jing-Qi Tao
- Department of Chemistry, School of Chemistry, Xi'an Key Laboratory of Sustainable Energy Material Chemistry, and MOE Key Laboratory for Nonequilibrium Synthesis and Modulation of Condensed Matter, Xi'an Jiaotong University, Xi'an 710049, China
| | - Pin Gao
- Department of Chemistry, School of Chemistry, Xi'an Key Laboratory of Sustainable Energy Material Chemistry, and MOE Key Laboratory for Nonequilibrium Synthesis and Modulation of Condensed Matter, Xi'an Jiaotong University, Xi'an 710049, China
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23
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Sakurai S, Matsumoto A, Kano T, Maruoka K. Cu-Catalyzed Enantioselective Alkylarylation of Vinylarenes Enabled by Chiral Binaphthyl-BOX Hybrid Ligands. J Am Chem Soc 2020; 142:19017-19022. [PMID: 33017146 DOI: 10.1021/jacs.0c09008] [Citation(s) in RCA: 43] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
Transition-metal-catalyzed radical relay coupling reactions have recently emerged as one of the most powerful methods to achieve difunctionalization of olefins. However, there has been limited success in applying this method to asymmetric catalysis using an effective chiral ligand. Herein we report the Cu-catalyzed enantioselective alkylarylation of vinylarenes using alkylsilyl peroxides as alkyl radical sources. This reaction proceeds under practical reaction conditions and affords chiral 1,1-diarylalkane structures that are found in a variety of bioactive molecules. Notably, a highly enantioselective reaction was accomplished by combining chiral bis(oxazoline) ligands with chiral binaphthyl scaffolds.
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Affiliation(s)
- Shunya Sakurai
- Department of Chemistry, Graduate School of Science, Kyoto University, Sakyo, Kyoto 606-8502, Japan
| | - Akira Matsumoto
- Graduate School of Pharmaceutical Sciences, Kyoto University, Sakyo, Kyoto 606-8501, Japan
| | - Taichi Kano
- Department of Chemistry, Graduate School of Science, Kyoto University, Sakyo, Kyoto 606-8502, Japan
| | - Keiji Maruoka
- Department of Chemistry, Graduate School of Science, Kyoto University, Sakyo, Kyoto 606-8502, Japan.,Graduate School of Pharmaceutical Sciences, Kyoto University, Sakyo, Kyoto 606-8501, Japan.,School of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou 510006, China
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24
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Shu C, Madhavachary R, Noble A, Aggarwal VK. Photoinduced Fragmentation Borylation of Cyclic Alcohols and Hemiacetals. Org Lett 2020; 22:7213-7218. [PMID: 32903015 DOI: 10.1021/acs.orglett.0c02513] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Chao Shu
- School of Chemistry, University of Bristol, Cantock’s Close, Bristol BS8 1TS, U.K
| | | | - Adam Noble
- School of Chemistry, University of Bristol, Cantock’s Close, Bristol BS8 1TS, U.K
| | - Varinder K. Aggarwal
- School of Chemistry, University of Bristol, Cantock’s Close, Bristol BS8 1TS, U.K
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25
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Xin H, Duan X, Liu L, Guo L. Metal‐Free, Visible‐Light‐Induced Selective C−C Bond Cleavage of Cycloalkanones with Molecular Oxygen. Chemistry 2020; 26:11690-11694. [DOI: 10.1002/chem.202001032] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2020] [Indexed: 01/05/2023]
Affiliation(s)
- Hong Xin
- Department of Chemistry School of Chemistry Xi'an Key Laboratory of Sustainable Energy Material Chemistry, and MOE Key Laboratory for Nonequilibrium Synthesis and Modulation of, Condensed Matter Xi'an Jiaotong University Xi'an 710049 P. R. China
| | - Xin‐Hua Duan
- Department of Chemistry School of Chemistry Xi'an Key Laboratory of Sustainable Energy Material Chemistry, and MOE Key Laboratory for Nonequilibrium Synthesis and Modulation of, Condensed Matter Xi'an Jiaotong University Xi'an 710049 P. R. China
- State Key Laboratory of Applied Organic Chemistry Lanzhou University Lanzhou 730000 P. R. China
| | - Le Liu
- Department of Chemistry School of Chemistry Xi'an Key Laboratory of Sustainable Energy Material Chemistry, and MOE Key Laboratory for Nonequilibrium Synthesis and Modulation of, Condensed Matter Xi'an Jiaotong University Xi'an 710049 P. R. China
| | - Li‐Na Guo
- Department of Chemistry School of Chemistry Xi'an Key Laboratory of Sustainable Energy Material Chemistry, and MOE Key Laboratory for Nonequilibrium Synthesis and Modulation of, Condensed Matter Xi'an Jiaotong University Xi'an 710049 P. R. China
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26
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Chen L, Yang JC, Xu P, Zhang JJ, Duan XH, Guo L. Nickel-catalyzed Suzuki Coupling of Cycloalkyl Silyl Peroxides with Boronic Acids. J Org Chem 2020; 85:7515-7525. [DOI: 10.1021/acs.joc.0c00250] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Lei Chen
- Department of Chemistry, School of Science, Xi’an Key Laboratory of Sustainable Energy Material Chemistry, and MOE Key Laboratory for Nonequilibrium Synthesis and Modulation of Condensed Matter, Xi’an Jiaotong University, Xi’an 710049, P. R. China
| | - Jun-Cheng Yang
- Department of Chemistry, School of Science, Xi’an Key Laboratory of Sustainable Energy Material Chemistry, and MOE Key Laboratory for Nonequilibrium Synthesis and Modulation of Condensed Matter, Xi’an Jiaotong University, Xi’an 710049, P. R. China
| | - Pengfei Xu
- Department of Chemistry, School of Science, Xi’an Key Laboratory of Sustainable Energy Material Chemistry, and MOE Key Laboratory for Nonequilibrium Synthesis and Modulation of Condensed Matter, Xi’an Jiaotong University, Xi’an 710049, P. R. China
| | - Jun-Jie Zhang
- Department of Chemistry, School of Science, Xi’an Key Laboratory of Sustainable Energy Material Chemistry, and MOE Key Laboratory for Nonequilibrium Synthesis and Modulation of Condensed Matter, Xi’an Jiaotong University, Xi’an 710049, P. R. China
| | - Xin-Hua Duan
- Department of Chemistry, School of Science, Xi’an Key Laboratory of Sustainable Energy Material Chemistry, and MOE Key Laboratory for Nonequilibrium Synthesis and Modulation of Condensed Matter, Xi’an Jiaotong University, Xi’an 710049, P. R. China
- State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou 730000, P. R. China
| | - Li−Na Guo
- Department of Chemistry, School of Science, Xi’an Key Laboratory of Sustainable Energy Material Chemistry, and MOE Key Laboratory for Nonequilibrium Synthesis and Modulation of Condensed Matter, Xi’an Jiaotong University, Xi’an 710049, P. R. China
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27
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Igawa K, Kawasaki Y, Nozaki S, Kokan N, Tomooka K. Ozone Oxidation of Silylalkene: Mechanistic Study and Application for the Synthesis of Silacarboxylic Acid Derivatives. J Org Chem 2020; 85:4165-4171. [PMID: 32141746 DOI: 10.1021/acs.joc.9b03350] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The addition-type ozone oxidation of silylalkenes is a highly efficient reaction to provide synthetically versatile α-silylperoxy carbonyl compounds. To gain insight into the reaction mechanism, we performed a computational study, which revealed that the reaction proceeds via [1,2]-Brook rearrangement-type silyl migration of primary ozonide. In sharp contrast to the addition-type reactions, the ozone oxidation of α-alkoxysilylalkenes proceeds in a cleavage-type manner to afford excellent yields of silacarboxylic acid esters via the 1,3-cycloelimination of primary ozonide prior to 1,2-silyl migration.
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Affiliation(s)
- Kazunobu Igawa
- Institute for Materials Chemistry and Engineering, IRCCS, Kyushu University, Kasuga, Fukuoka 816-8580, Japan.,Department of Molecular and Material Sciences, Kyushu University, Kasuga, Fukuoka 816-8580, Japan
| | - Yuuya Kawasaki
- Institute for Materials Chemistry and Engineering, IRCCS, Kyushu University, Kasuga, Fukuoka 816-8580, Japan
| | - Sora Nozaki
- Department of Molecular and Material Sciences, Kyushu University, Kasuga, Fukuoka 816-8580, Japan
| | - Naoto Kokan
- Institute for Materials Chemistry and Engineering, IRCCS, Kyushu University, Kasuga, Fukuoka 816-8580, Japan
| | - Katsuhiko Tomooka
- Institute for Materials Chemistry and Engineering, IRCCS, Kyushu University, Kasuga, Fukuoka 816-8580, Japan.,Department of Molecular and Material Sciences, Kyushu University, Kasuga, Fukuoka 816-8580, Japan
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28
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Shiozaki Y, Sakurai S, Sakamoto R, Matsumoto A, Maruoka K. Iron-Catalyzed Radical Cleavage/C-C Bond Formation of Acetal-Derived Alkylsilyl Peroxides. Chem Asian J 2020; 15:573-576. [PMID: 32017369 DOI: 10.1002/asia.201901695] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2019] [Revised: 01/15/2020] [Indexed: 12/12/2022]
Abstract
A novel radical-based approach for the iron-catalyzed selective cleavage of acetal-derived alkylsilyl peroxides, followed by the formation of a carbon-carbon bond is reported. The reaction proceeds under mild reaction conditions and exhibits a broad substrate scope with respect to the acetal moiety and the carbon electrophile. Mechanistic studies suggest that the present reaction proceeds through a free-radical process involving carbon radicals generated by the homolytic cleavage of a carbon-carbon bond within the acetal moiety. A synthetic application of this method to sugar-derived alkylsilyl peroxides is also described.
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Affiliation(s)
- Yoko Shiozaki
- Department of Chemistry Graduate School of Science, Kyoto University Sakyo, Kyoto, 606-8502, Japan
| | - Shunya Sakurai
- Department of Chemistry Graduate School of Science, Kyoto University Sakyo, Kyoto, 606-8502, Japan
| | - Ryu Sakamoto
- Department of Chemistry Graduate School of Science, Kyoto University Sakyo, Kyoto, 606-8502, Japan
| | - Akira Matsumoto
- Graduate School of Pharmaceutical Sciences, Kyoto University Sakyo, Kyoto, 606-8501, Japan
| | - Keiji Maruoka
- Department of Chemistry Graduate School of Science, Kyoto University Sakyo, Kyoto, 606-8502, Japan.,Graduate School of Pharmaceutical Sciences, Kyoto University Sakyo, Kyoto, 606-8501, Japan.,School of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou, 510006, China
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29
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Sakurai S, Tsuzuki S, Sakamoto R, Maruoka K. Cu-Catalyzed Generation of Alkyl Radicals from Alkylsilyl Peroxides and Subsequent C(sp 3)-C(sp 2) Cross-Coupling with Arylboronic Acids. J Org Chem 2020; 85:3973-3980. [PMID: 31939666 DOI: 10.1021/acs.joc.9b03294] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
This work describes a novel and practical method for the Cu-catalyzed C(sp3)-C(sp2) cross-coupling of alkylsilyl peroxides with arylboronic acids. The reductive cleavage of the O-O bond of alkylsilyl peroxides and the desired cross-coupling reactions to afford alkyl-substituted aromatic rings proceed smoothly at room temperature promoted by simple Cu-based catalysts and do not require activation by visible light. The results of mechanistic investigations support a radical-mediated C(sp3)-C(sp2) bond formation via β-scission of the alkoxy radicals generated from the alkylsilyl peroxides.
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Affiliation(s)
- Shunya Sakurai
- Department of Chemistry, Graduate School of Science, Kyoto University, Sakyo, Kyoto 606-8502, Japan
| | - Saori Tsuzuki
- Department of Chemistry, Graduate School of Science, Kyoto University, Sakyo, Kyoto 606-8502, Japan
| | - Ryu Sakamoto
- Department of Chemistry, Graduate School of Science, Kyoto University, Sakyo, Kyoto 606-8502, Japan
| | - Keiji Maruoka
- Department of Chemistry, Graduate School of Science, Kyoto University, Sakyo, Kyoto 606-8502, Japan.,Graduate School of Pharmaceutical Sciences, Kyoto University, Sakyo, Kyoto 606-8501, Japan.,School of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou 510006, China
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30
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Yang S, Gao P, Suo MT, Gao SX, Duan XH, Guo LN. Copper-catalyzed alkylarylation of vinylarenes with cycloalkylsilyl peroxides and boronic acids. Chem Commun (Camb) 2020; 56:10714-10717. [DOI: 10.1039/d0cc04439c] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
A mild and efficient copper-catalyzed alkylarylation of vinylarenes with cycloalkylsilyl peroxides and boronic acids is described.
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Affiliation(s)
- Shuo Yang
- Department of Chemistry
- School of Chemistry
- Xi’an Key Laboratory of Sustainable Energy Material Chemistry, and MOE Key Laboratory for Nonequilibrium Synthesis and Modulation of Condensed Matter
- Xi’an Jiaotong University
- Xi’an 710049
| | - Pin Gao
- Department of Chemistry
- School of Chemistry
- Xi’an Key Laboratory of Sustainable Energy Material Chemistry, and MOE Key Laboratory for Nonequilibrium Synthesis and Modulation of Condensed Matter
- Xi’an Jiaotong University
- Xi’an 710049
| | - Meng-Ting Suo
- Department of Chemistry
- School of Chemistry
- Xi’an Key Laboratory of Sustainable Energy Material Chemistry, and MOE Key Laboratory for Nonequilibrium Synthesis and Modulation of Condensed Matter
- Xi’an Jiaotong University
- Xi’an 710049
| | - Shu-Xin Gao
- Department of Chemistry
- School of Chemistry
- Xi’an Key Laboratory of Sustainable Energy Material Chemistry, and MOE Key Laboratory for Nonequilibrium Synthesis and Modulation of Condensed Matter
- Xi’an Jiaotong University
- Xi’an 710049
| | - Xin-Hua Duan
- Department of Chemistry
- School of Chemistry
- Xi’an Key Laboratory of Sustainable Energy Material Chemistry, and MOE Key Laboratory for Nonequilibrium Synthesis and Modulation of Condensed Matter
- Xi’an Jiaotong University
- Xi’an 710049
| | - Li-Na Guo
- Department of Chemistry
- School of Chemistry
- Xi’an Key Laboratory of Sustainable Energy Material Chemistry, and MOE Key Laboratory for Nonequilibrium Synthesis and Modulation of Condensed Matter
- Xi’an Jiaotong University
- Xi’an 710049
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Suo MT, Yang S, Yang JC, Liu ZY, Zhang JJ, Guo LN. Iron catalyzed ketoalkylation and ketoalkylation/etherification of styrenes initiated by selective C–C bond cleavage. Org Chem Front 2020. [DOI: 10.1039/d0qo00671h] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
A mild and efficient iron-catalyzed ketoalkyl-Heck-type coupling initiated by radical C–C bond cleavage is described. Furthermore, this concise catalytic system was also applicable for the three-component ketoalkylation/etherification of styrenes.
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Affiliation(s)
- Meng-Ting Suo
- Department of Chemistry
- School of Chemistry
- Xi'an Key Laboratory of Sustainable Energy Material Chemistry
- and MOE Key Laboratory for Nonequilibrium Synthesis and Modulation of Condensed Matter
- Xi'an Jiaotong University
| | - Shuo Yang
- Department of Chemistry
- School of Chemistry
- Xi'an Key Laboratory of Sustainable Energy Material Chemistry
- and MOE Key Laboratory for Nonequilibrium Synthesis and Modulation of Condensed Matter
- Xi'an Jiaotong University
| | - Jun-Cheng Yang
- Department of Chemistry
- School of Chemistry
- Xi'an Key Laboratory of Sustainable Energy Material Chemistry
- and MOE Key Laboratory for Nonequilibrium Synthesis and Modulation of Condensed Matter
- Xi'an Jiaotong University
| | - Ze-Yu Liu
- Department of Chemistry
- School of Chemistry
- Xi'an Key Laboratory of Sustainable Energy Material Chemistry
- and MOE Key Laboratory for Nonequilibrium Synthesis and Modulation of Condensed Matter
- Xi'an Jiaotong University
| | - Jun-Jie Zhang
- Department of Chemistry
- School of Chemistry
- Xi'an Key Laboratory of Sustainable Energy Material Chemistry
- and MOE Key Laboratory for Nonequilibrium Synthesis and Modulation of Condensed Matter
- Xi'an Jiaotong University
| | - Li-Na Guo
- Department of Chemistry
- School of Chemistry
- Xi'an Key Laboratory of Sustainable Energy Material Chemistry
- and MOE Key Laboratory for Nonequilibrium Synthesis and Modulation of Condensed Matter
- Xi'an Jiaotong University
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32
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Friese FW, Studer A. New avenues for C-B bond formation via radical intermediates. Chem Sci 2019; 10:8503-8518. [PMID: 32015798 PMCID: PMC6977546 DOI: 10.1039/c9sc03765a] [Citation(s) in RCA: 92] [Impact Index Per Article: 18.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2019] [Accepted: 09/03/2019] [Indexed: 12/26/2022] Open
Abstract
This perspective gives an overview on recent findings in the emerging area of C-radical borylation using diborons as radical trapping reagents. Aryl, vinyl and alkyl boronic esters can be accessed via such an approach under mild conditions. These processes are complementary to established transition metal catalysed cross coupling reactions. Radical borylations can be conducted in the absence of a transition metal but some processes require transition metals as catalysts. It will be shown that various readily available C-radical precursors can be used to run these borylations. For a better understanding of the chemistry, mechanistic discussions are also presented and an outlook on this topic will be provided at the end of the article.
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Affiliation(s)
- Florian W Friese
- Organisch-Chemisches Institut , Westfälische Wilhelms-Universität , Corrensstrasse 40 , 48149 Münster , Germany .
| | - Armido Studer
- Organisch-Chemisches Institut , Westfälische Wilhelms-Universität , Corrensstrasse 40 , 48149 Münster , Germany .
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Gao P, Wu H, Yang JC, Guo L. Iron-Catalyzed Decarboxylative Olefination of Unstrained Carbon–Carbon Bonds Relying on Alkoxyl Radical Induced Cascade. Org Lett 2019; 21:7104-7108. [DOI: 10.1021/acs.orglett.9b02675] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Pin Gao
- Department of Chemistry, School of Science, Xi’an Key Laboratory of Sustainable Energy Material Chemistry, and MOE Key Laboratory for Nonequilibrium Synthesis and Modulation of Condensed Matter, Xi’an Jiaotong University, Xi’an 710049, China
| | - Hao Wu
- Department of Chemistry, School of Science, Xi’an Key Laboratory of Sustainable Energy Material Chemistry, and MOE Key Laboratory for Nonequilibrium Synthesis and Modulation of Condensed Matter, Xi’an Jiaotong University, Xi’an 710049, China
| | - Jun-Cheng Yang
- Department of Chemistry, School of Science, Xi’an Key Laboratory of Sustainable Energy Material Chemistry, and MOE Key Laboratory for Nonequilibrium Synthesis and Modulation of Condensed Matter, Xi’an Jiaotong University, Xi’an 710049, China
| | - Li−Na Guo
- Department of Chemistry, School of Science, Xi’an Key Laboratory of Sustainable Energy Material Chemistry, and MOE Key Laboratory for Nonequilibrium Synthesis and Modulation of Condensed Matter, Xi’an Jiaotong University, Xi’an 710049, China
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