1
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He JY, Zhu C, Duan WX, Kong LX, Wang NN, Wang YZ, Fan ZY, Qiao XY, Xu H. Bifunctional Chiral Electrocatalysts Enable Enantioselective α-Alkylation of Aldehydes. Angew Chem Int Ed Engl 2024; 63:e202401355. [PMID: 38967087 DOI: 10.1002/anie.202401355] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2024] [Revised: 06/25/2024] [Accepted: 07/04/2024] [Indexed: 07/06/2024]
Abstract
Herein, we describe an innovative approach to the asymmetric electrochemical α-alkylation of aldehydes facilitated by a newly designed bifunctional chiral electrocatalyst. The highly efficient bifunctional chiral electrocatalyst combines a chiral aminocatalyst with a redox mediator. It plays a dual role as a redox mediator for electrooxidation, while simultaneously providing remarkable asymmetric induction for the stereoselective α-alkylation of aldehydes. Additionally, this novel catalyst exhibits enhanced catalytic activity and excellent stereoselective control comparable to conventional catalytic systems. As a result, this strategy provides a new avenue for versatile asymmetric electrochemistry. The electrooxidation of diverse phenols enables the C-H/C-H oxidative α-alkylation of aldehydes in a highly chemo- and stereoselective fashion. Detailed mechanistic studies by control experiments and cyclic voltammetry analysis demonstrate possible reaction pathways and the origin of enantio-induction.
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Affiliation(s)
- Jin-Yu He
- Engineering Research Center of Photoenergy Utilization for Pollution Control and Carbon Reduction, State Key Laboratory of Green Pesticide, College of Chemistry, Central China Normal University, Wuhan, 430079, China
| | - Cuiju Zhu
- Engineering Research Center of Photoenergy Utilization for Pollution Control and Carbon Reduction, State Key Laboratory of Green Pesticide, College of Chemistry, Central China Normal University, Wuhan, 430079, China
| | - Wen-Xi Duan
- Engineering Research Center of Photoenergy Utilization for Pollution Control and Carbon Reduction, State Key Laboratory of Green Pesticide, College of Chemistry, Central China Normal University, Wuhan, 430079, China
| | - Ling-Xuan Kong
- Engineering Research Center of Photoenergy Utilization for Pollution Control and Carbon Reduction, State Key Laboratory of Green Pesticide, College of Chemistry, Central China Normal University, Wuhan, 430079, China
| | - Na-Na Wang
- Engineering Research Center of Photoenergy Utilization for Pollution Control and Carbon Reduction, State Key Laboratory of Green Pesticide, College of Chemistry, Central China Normal University, Wuhan, 430079, China
| | - Yan-Zhao Wang
- Engineering Research Center of Photoenergy Utilization for Pollution Control and Carbon Reduction, State Key Laboratory of Green Pesticide, College of Chemistry, Central China Normal University, Wuhan, 430079, China
| | - Zhi-Yong Fan
- Engineering Research Center of Photoenergy Utilization for Pollution Control and Carbon Reduction, State Key Laboratory of Green Pesticide, College of Chemistry, Central China Normal University, Wuhan, 430079, China
| | - Xin-Ying Qiao
- Engineering Research Center of Photoenergy Utilization for Pollution Control and Carbon Reduction, State Key Laboratory of Green Pesticide, College of Chemistry, Central China Normal University, Wuhan, 430079, China
| | - Hao Xu
- Engineering Research Center of Photoenergy Utilization for Pollution Control and Carbon Reduction, State Key Laboratory of Green Pesticide, College of Chemistry, Central China Normal University, Wuhan, 430079, China
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2
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Zhang Q, Liang K, Guo C. Enantioselective Nickel‐Catalyzed Electrochemical Radical Allylation. Angew Chem Int Ed Engl 2022; 61:e202210632. [DOI: 10.1002/anie.202210632] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2022] [Indexed: 11/11/2022]
Affiliation(s)
- Qinglin Zhang
- Hefei National Research Center for Physical Sciences at the Microscale and Department of Chemistry University of Science and Technology of China Hefei 230026 China
| | - Kang Liang
- Hefei National Research Center for Physical Sciences at the Microscale and Department of Chemistry University of Science and Technology of China Hefei 230026 China
| | - Chang Guo
- Hefei National Research Center for Physical Sciences at the Microscale and Department of Chemistry University of Science and Technology of China Hefei 230026 China
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3
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Zhang Q, Liang K, Guo C. Enantioselective Nickel‐Catalyzed Electrochemical Radical Allylation. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202210632] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Qinglin Zhang
- USTC: University of Science and Technology of China HFNL CHINA
| | - Kang Liang
- USTC: University of Science and Technology of China HFNL CHINA
| | - Chang Guo
- University of Science and Technology of China Hefei National Laboratory for Physical Sciences at the Microscale No.96, JinZhai Road Baohe District 230026 Hefei CHINA
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4
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Chakraborty P, Mandal R, Garg N, Sundararaju B. Recent advances in transition metal-catalyzed asymmetric electrocatalysis. Coord Chem Rev 2021. [DOI: 10.1016/j.ccr.2021.214065] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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5
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Wei BY, Xie DT, Lai SQ, Jiang Y, Fu H, Wei D, Han B. Electrochemically Tuned Oxidative [4+2] Annulation and Dioxygenation of Olefins with Hydroxamic Acids. Angew Chem Int Ed Engl 2021; 60:3182-3188. [PMID: 33058402 DOI: 10.1002/anie.202012209] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2020] [Indexed: 12/23/2022]
Abstract
This work represents the first [4+2] annulation of hydroxamic acids with olefins for the synthesis of benzo[c][1,2]oxazines scaffold via anode-selective electrochemical oxidation. This protocol features mild conditions, is oxidant free, shows high regioselectivity and stereoselectivity, broad substrate scope of both alkenes and hydroxamic acids, and is compatible with terpenes, peptides, and steroids. Significantly, the dioxygenation of olefins employing hydroxamic acid is also successfully achieved by switching the anode material under the same reaction conditions. The study not only reveals a new reactivity of hydroxamic acids and its first application in electrosynthesis but also provides a successful example of anode material-tuned product selectivity.
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Affiliation(s)
- Bang-Yi Wei
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, 730000, P. R. China
| | - Dong-Tai Xie
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, 730000, P. R. China
| | - Sheng-Qiang Lai
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, 730000, P. R. China
| | - Yu Jiang
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, 730000, P. R. China
| | - Hong Fu
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, 730000, P. R. China
| | - Dian Wei
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, 730000, P. R. China
| | - Bing Han
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, 730000, P. R. China
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6
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Wei B, Xie D, Lai S, Jiang Y, Fu H, Wei D, Han B. Electrochemically Tuned Oxidative [4+2] Annulation and Dioxygenation of Olefins with Hydroxamic Acids. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202012209] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Bang‐Yi Wei
- State Key Laboratory of Applied Organic Chemistry College of Chemistry and Chemical Engineering Lanzhou University Lanzhou 730000 P. R. China
| | - Dong‐Tai Xie
- State Key Laboratory of Applied Organic Chemistry College of Chemistry and Chemical Engineering Lanzhou University Lanzhou 730000 P. R. China
| | - Sheng‐Qiang Lai
- State Key Laboratory of Applied Organic Chemistry College of Chemistry and Chemical Engineering Lanzhou University Lanzhou 730000 P. R. China
| | - Yu Jiang
- State Key Laboratory of Applied Organic Chemistry College of Chemistry and Chemical Engineering Lanzhou University Lanzhou 730000 P. R. China
| | - Hong Fu
- State Key Laboratory of Applied Organic Chemistry College of Chemistry and Chemical Engineering Lanzhou University Lanzhou 730000 P. R. China
| | - Dian Wei
- State Key Laboratory of Applied Organic Chemistry College of Chemistry and Chemical Engineering Lanzhou University Lanzhou 730000 P. R. China
| | - Bing Han
- State Key Laboratory of Applied Organic Chemistry College of Chemistry and Chemical Engineering Lanzhou University Lanzhou 730000 P. R. China
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7
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Liang H, Wang LJ, Ji YX, Wang H, Zhang B. Selective Electrochemical Hydrolysis of Hydrosilanes to Silanols via Anodically Generated Silyl Cations. Angew Chem Int Ed Engl 2020; 60:1839-1844. [PMID: 33058450 DOI: 10.1002/anie.202010437] [Citation(s) in RCA: 40] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2020] [Indexed: 01/08/2023]
Abstract
The first electrochemical hydrolysis of hydrosilanes to silanols under mild and neutral reaction conditions is reported. The practical protocol employs commercially available and cheap NHPI as a hydrogen-atom transfer (HAT) mediator and operates at room temperature with high selectivity, leading to various valuable silanols in moderate to good yields. Notably, this electrochemical method exhibits a broad substrate scope and high functional-group compatibility, and it is applicable to late-stage functionalization of complex molecules. Preliminary mechanistic studies suggest that the reaction appears to proceed through a nucleophilic substitution reaction of an electrogenerated silyl cation with H2 O.
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Affiliation(s)
- Hao Liang
- State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing, 210009, China
| | - Lu-Jun Wang
- State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing, 210009, China
| | - Yun-Xing Ji
- State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing, 210009, China
| | - Han Wang
- State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing, 210009, China
| | - Bo Zhang
- State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing, 210009, China
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8
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Liang H, Wang L, Ji Y, Wang H, Zhang B. Selective Electrochemical Hydrolysis of Hydrosilanes to Silanols via Anodically Generated Silyl Cations. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202010437] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Hao Liang
- State Key Laboratory of Natural Medicines China Pharmaceutical University Nanjing 210009 China
| | - Lu‐Jun Wang
- State Key Laboratory of Natural Medicines China Pharmaceutical University Nanjing 210009 China
| | - Yun‐Xing Ji
- State Key Laboratory of Natural Medicines China Pharmaceutical University Nanjing 210009 China
| | - Han Wang
- State Key Laboratory of Natural Medicines China Pharmaceutical University Nanjing 210009 China
| | - Bo Zhang
- State Key Laboratory of Natural Medicines China Pharmaceutical University Nanjing 210009 China
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9
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Chang X, Zhang J, Zhang Q, Guo C. Merging Electrosynthesis and Bifunctional Squaramide Catalysis in the Asymmetric Detrifluoroacetylative Alkylation Reactions. Angew Chem Int Ed Engl 2020; 59:18500-18504. [PMID: 32652737 DOI: 10.1002/anie.202006903] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2020] [Revised: 07/07/2020] [Indexed: 11/07/2022]
Abstract
An enantioselective bifunctional squaramide-catalyzed detrifluoroacetylative alkylation reaction has been developed under electrochemical conditions. The unified strategy based on this key tandem methodology has been divergently explored for the asymmetric synthesis of fluorine-containing target molecules with good stereocontrol (up to 95 % ee). Furthermore, this asymmetric catalytic reaction combines the benefits of electrosynthesis and organocatalysis for the preparation of biologically relevant products containing C-F tertiary stereogenic centers.
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Affiliation(s)
- Xihao Chang
- Hefei National Laboratory for Physical Sciences at the Microscale, University of Science and Technology of China, Hefei, 230026, China
| | - Jiayin Zhang
- Hefei National Laboratory for Physical Sciences at the Microscale, University of Science and Technology of China, Hefei, 230026, China
| | - Qinglin Zhang
- Hefei National Laboratory for Physical Sciences at the Microscale, University of Science and Technology of China, Hefei, 230026, China
| | - Chang Guo
- Hefei National Laboratory for Physical Sciences at the Microscale, University of Science and Technology of China, Hefei, 230026, China
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10
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Zhang S, Samanta RC, Del Vecchio A, Ackermann L. Evolution of High-Valent Nickela-Electrocatalyzed C-H Activation: From Cross(-Electrophile)-Couplings to Electrooxidative C-H Transformations. Chemistry 2020; 26:10936-10947. [PMID: 32329534 PMCID: PMC7497266 DOI: 10.1002/chem.202001318] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2020] [Revised: 04/22/2020] [Indexed: 12/19/2022]
Abstract
C-H activation has emerged as one of the most efficient tools for the formation of carbon-carbon and carbon-heteroatom bonds, avoiding the use of prefunctionalized materials. In spite of tremendous progress in the field, stoichiometric quantities of toxic and/or costly chemical redox reagents, such as silver(I) or copper(II) salts, are largely required for oxidative C-H activations. Recently, electrosynthesis has experienced a remarkable renaissance that enables the use of storable, safe and waste-free electric current as a redox equivalent. While major recent momentum was gained in electrocatalyzed C-H activations by 4d and 5d metals, user-friendly and inexpensive nickela-electrocatalysis has until recently proven elusive for oxidative C-H activations. Herein, the early developments of nickela-electrocatalyzed reductive cross-electrophile couplings as well as net-redox-neutral cross-couplings are first introduced. The focus of this Minireview is, however, the recent emergence of nickel-catalyzed electrooxidative C-H activations until April 2020.
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Affiliation(s)
- Shou‐Kun Zhang
- Institut für Organische und Biomolekulare ChemieGeorg-August-Universität GöttingenTammannstraße 237077GöttingenGermany
| | - Ramesh C. Samanta
- Institut für Organische und Biomolekulare ChemieGeorg-August-Universität GöttingenTammannstraße 237077GöttingenGermany
| | - Antonio Del Vecchio
- Institut für Organische und Biomolekulare ChemieGeorg-August-Universität GöttingenTammannstraße 237077GöttingenGermany
| | - Lutz Ackermann
- Institut für Organische und Biomolekulare ChemieGeorg-August-Universität GöttingenTammannstraße 237077GöttingenGermany
- Woehler Research Institute for Sustainable Chemistry (WISCh)Georg-August-Universität GöttingenTammannstraße 237077GöttingenGermany
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11
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Chang X, Zhang J, Zhang Q, Guo C. Merging Electrosynthesis and Bifunctional Squaramide Catalysis in the Asymmetric Detrifluoroacetylative Alkylation Reactions. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202006903] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Xihao Chang
- Hefei National Laboratory for Physical Sciences at the Microscale University of Science and Technology of China Hefei 230026 China
| | - Jiayin Zhang
- Hefei National Laboratory for Physical Sciences at the Microscale University of Science and Technology of China Hefei 230026 China
| | - Qinglin Zhang
- Hefei National Laboratory for Physical Sciences at the Microscale University of Science and Technology of China Hefei 230026 China
| | - Chang Guo
- Hefei National Laboratory for Physical Sciences at the Microscale University of Science and Technology of China Hefei 230026 China
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12
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Röckl JL, Dörr M, Waldvogel SR. Electrosynthesis 2.0 in 1,1,1,3,3,3‐Hexafluoroisopropanol/Amine Mixtures. ChemElectroChem 2020. [DOI: 10.1002/celc.202000761] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Johannes L. Röckl
- Department of Chemistry Johannes Gutenberg University Mainz Duesbergweg 10–14 55128 Mainz Germany
- Graduate School Materials Science in Mainz Staudingerweg 9 55128 Mainz Germany
| | - Maurice Dörr
- Department of Chemistry Johannes Gutenberg University Mainz Duesbergweg 10–14 55128 Mainz Germany
| | - Siegfried R. Waldvogel
- Department of Chemistry Johannes Gutenberg University Mainz Duesbergweg 10–14 55128 Mainz Germany
- Graduate School Materials Science in Mainz Staudingerweg 9 55128 Mainz Germany
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13
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Li L, Li Y, Fu N, Zhang L, Luo S. Catalytic Asymmetric Electrochemical α‐Arylation of Cyclic β‐Ketocarbonyls with Anodic Benzyne Intermediates. Angew Chem Int Ed Engl 2020; 59:14347-14351. [DOI: 10.1002/anie.202006016] [Citation(s) in RCA: 37] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2020] [Indexed: 01/12/2023]
Affiliation(s)
- Longji Li
- Key Laboratory of Molecular Recognition and Function Institute of Chemistry Chinese Academy of Sciences Beijing 100190 China
- University of Chinese Academy of Sciences Beijing 100049 China
| | - Yao Li
- Center of Basic Molecular Science (CBMS) Department of Chemistry Tsinghua University Beijing 100084 China
| | - Niankai Fu
- Key Laboratory of Molecular Recognition and Function Institute of Chemistry Chinese Academy of Sciences Beijing 100190 China
- University of Chinese Academy of Sciences Beijing 100049 China
| | - Long Zhang
- Center of Basic Molecular Science (CBMS) Department of Chemistry Tsinghua University Beijing 100084 China
| | - Sanzhong Luo
- Center of Basic Molecular Science (CBMS) Department of Chemistry Tsinghua University Beijing 100084 China
- Key Laboratory of Molecular Recognition and Function Institute of Chemistry Chinese Academy of Sciences Beijing 100190 China
- University of Chinese Academy of Sciences Beijing 100049 China
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14
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Li L, Li Y, Fu N, Zhang L, Luo S. Catalytic Asymmetric Electrochemical α‐Arylation of Cyclic β‐Ketocarbonyls with Anodic Benzyne Intermediates. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202006016] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Longji Li
- Key Laboratory of Molecular Recognition and Function Institute of Chemistry Chinese Academy of Sciences Beijing 100190 China
- University of Chinese Academy of Sciences Beijing 100049 China
| | - Yao Li
- Center of Basic Molecular Science (CBMS) Department of Chemistry Tsinghua University Beijing 100084 China
| | - Niankai Fu
- Key Laboratory of Molecular Recognition and Function Institute of Chemistry Chinese Academy of Sciences Beijing 100190 China
- University of Chinese Academy of Sciences Beijing 100049 China
| | - Long Zhang
- Center of Basic Molecular Science (CBMS) Department of Chemistry Tsinghua University Beijing 100084 China
| | - Sanzhong Luo
- Center of Basic Molecular Science (CBMS) Department of Chemistry Tsinghua University Beijing 100084 China
- Key Laboratory of Molecular Recognition and Function Institute of Chemistry Chinese Academy of Sciences Beijing 100190 China
- University of Chinese Academy of Sciences Beijing 100049 China
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15
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Gao P, Weng X, Wang Z, Zheng C, Sun B, Chen Z, You S, Mei T. Cu
II
/TEMPO‐Catalyzed Enantioselective C(sp
3
)–H Alkynylation of Tertiary Cyclic Amines through Shono‐Type Oxidation. Angew Chem Int Ed Engl 2020; 59:15254-15259. [DOI: 10.1002/anie.202005099] [Citation(s) in RCA: 57] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2020] [Indexed: 11/05/2022]
Affiliation(s)
- Pei‐Sen Gao
- State Key Laboratory of Organometallic Chemistry Center for Excellence in Molecular Synthesis Shanghai Institute of Organic Chemistry University of Chinese Academy of Sciences Chinese Academy of Science 345 Lingling Road Shanghai 200032 China
| | - Xin‐Jun Weng
- State Key Laboratory of Organometallic Chemistry Center for Excellence in Molecular Synthesis Shanghai Institute of Organic Chemistry University of Chinese Academy of Sciences Chinese Academy of Science 345 Lingling Road Shanghai 200032 China
| | - Zhen‐Hua Wang
- State Key Laboratory of Organometallic Chemistry Center for Excellence in Molecular Synthesis Shanghai Institute of Organic Chemistry University of Chinese Academy of Sciences Chinese Academy of Science 345 Lingling Road Shanghai 200032 China
| | - Chao Zheng
- State Key Laboratory of Organometallic Chemistry Center for Excellence in Molecular Synthesis Shanghai Institute of Organic Chemistry University of Chinese Academy of Sciences Chinese Academy of Science 345 Lingling Road Shanghai 200032 China
| | - Bing Sun
- State Key Laboratory of Organometallic Chemistry Center for Excellence in Molecular Synthesis Shanghai Institute of Organic Chemistry University of Chinese Academy of Sciences Chinese Academy of Science 345 Lingling Road Shanghai 200032 China
| | - Zhi‐Hao Chen
- State Key Laboratory of Organometallic Chemistry Center for Excellence in Molecular Synthesis Shanghai Institute of Organic Chemistry University of Chinese Academy of Sciences Chinese Academy of Science 345 Lingling Road Shanghai 200032 China
| | - Shu‐Li You
- State Key Laboratory of Organometallic Chemistry Center for Excellence in Molecular Synthesis Shanghai Institute of Organic Chemistry University of Chinese Academy of Sciences Chinese Academy of Science 345 Lingling Road Shanghai 200032 China
| | - Tian‐Sheng Mei
- State Key Laboratory of Organometallic Chemistry Center for Excellence in Molecular Synthesis Shanghai Institute of Organic Chemistry University of Chinese Academy of Sciences Chinese Academy of Science 345 Lingling Road Shanghai 200032 China
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16
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Gao P, Weng X, Wang Z, Zheng C, Sun B, Chen Z, You S, Mei T. Cu
II
/TEMPO‐Catalyzed Enantioselective C(sp
3
)–H Alkynylation of Tertiary Cyclic Amines through Shono‐Type Oxidation. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202005099] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Pei‐Sen Gao
- State Key Laboratory of Organometallic Chemistry Center for Excellence in Molecular Synthesis Shanghai Institute of Organic Chemistry University of Chinese Academy of Sciences Chinese Academy of Science 345 Lingling Road Shanghai 200032 China
| | - Xin‐Jun Weng
- State Key Laboratory of Organometallic Chemistry Center for Excellence in Molecular Synthesis Shanghai Institute of Organic Chemistry University of Chinese Academy of Sciences Chinese Academy of Science 345 Lingling Road Shanghai 200032 China
| | - Zhen‐Hua Wang
- State Key Laboratory of Organometallic Chemistry Center for Excellence in Molecular Synthesis Shanghai Institute of Organic Chemistry University of Chinese Academy of Sciences Chinese Academy of Science 345 Lingling Road Shanghai 200032 China
| | - Chao Zheng
- State Key Laboratory of Organometallic Chemistry Center for Excellence in Molecular Synthesis Shanghai Institute of Organic Chemistry University of Chinese Academy of Sciences Chinese Academy of Science 345 Lingling Road Shanghai 200032 China
| | - Bing Sun
- State Key Laboratory of Organometallic Chemistry Center for Excellence in Molecular Synthesis Shanghai Institute of Organic Chemistry University of Chinese Academy of Sciences Chinese Academy of Science 345 Lingling Road Shanghai 200032 China
| | - Zhi‐Hao Chen
- State Key Laboratory of Organometallic Chemistry Center for Excellence in Molecular Synthesis Shanghai Institute of Organic Chemistry University of Chinese Academy of Sciences Chinese Academy of Science 345 Lingling Road Shanghai 200032 China
| | - Shu‐Li You
- State Key Laboratory of Organometallic Chemistry Center for Excellence in Molecular Synthesis Shanghai Institute of Organic Chemistry University of Chinese Academy of Sciences Chinese Academy of Science 345 Lingling Road Shanghai 200032 China
| | - Tian‐Sheng Mei
- State Key Laboratory of Organometallic Chemistry Center for Excellence in Molecular Synthesis Shanghai Institute of Organic Chemistry University of Chinese Academy of Sciences Chinese Academy of Science 345 Lingling Road Shanghai 200032 China
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17
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Liu X, Liu R, Qiu J, Cheng X, Li G. Chemical‐Reductant‐Free Electrochemical Deuteration Reaction using Deuterium Oxide. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202005765] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Xu Liu
- Institute of Chemistry and Biomedical Sciences Jiangsu Key Laboratory of Advanced Organic Materials School of Chemistry and Chemical Engineering National Demonstration Center for, Experimental Chemistry Education Nanjing University Nanjing 210023 China
| | - Ruoyu Liu
- Institute of Chemistry and Biomedical Sciences Jiangsu Key Laboratory of Advanced Organic Materials School of Chemistry and Chemical Engineering National Demonstration Center for, Experimental Chemistry Education Nanjing University Nanjing 210023 China
| | - Jiaxing Qiu
- Institute of Chemistry and Biomedical Sciences Jiangsu Key Laboratory of Advanced Organic Materials School of Chemistry and Chemical Engineering National Demonstration Center for, Experimental Chemistry Education Nanjing University Nanjing 210023 China
| | - Xu Cheng
- Institute of Chemistry and Biomedical Sciences Jiangsu Key Laboratory of Advanced Organic Materials School of Chemistry and Chemical Engineering National Demonstration Center for, Experimental Chemistry Education Nanjing University Nanjing 210023 China
- State Key Laboratory Breeding Base of Green Chemistry-Synthesis Technology Zhejiang University of Technology Hangzhou 310032 China
| | - Guigen Li
- Institute of Chemistry and Biomedical Sciences Jiangsu Key Laboratory of Advanced Organic Materials School of Chemistry and Chemical Engineering National Demonstration Center for, Experimental Chemistry Education Nanjing University Nanjing 210023 China
- Department of Chemistry and Biochemistry Texas Tech University Lubbock TX USA
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18
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Liu X, Liu R, Qiu J, Cheng X, Li G. Chemical-Reductant-Free Electrochemical Deuteration Reaction using Deuterium Oxide. Angew Chem Int Ed Engl 2020; 59:13962-13967. [PMID: 32394494 DOI: 10.1002/anie.202005765] [Citation(s) in RCA: 63] [Impact Index Per Article: 15.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2020] [Indexed: 12/20/2022]
Abstract
We report a method for the electrochemical deuteration of α,β-unsaturated carbonyl compounds under catalyst- and external-reductant-free conditions, with deuteration rates as high as 99 % and yields up to 91 % in 2 h. The use of graphite felt for both the cathode and the anode was key to ensuring chemoselectivity and high deuterium incorporation under neutral conditions without the need for an external reductant. This method has a number of advantages over previously reported deuteration reactions that use stoichiometric metallic reductants. Mechanistic experiments showed that O2 evolution at the anode not only eliminates the need for an external reductant but also regulates the pH of the reaction mixture, keeping it approximately neutral.
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Affiliation(s)
- Xu Liu
- Institute of Chemistry and Biomedical Sciences, Jiangsu Key Laboratory of Advanced Organic Materials, School of Chemistry and Chemical Engineering, National Demonstration Center for, Experimental Chemistry Education, Nanjing University, Nanjing, 210023, China
| | - Ruoyu Liu
- Institute of Chemistry and Biomedical Sciences, Jiangsu Key Laboratory of Advanced Organic Materials, School of Chemistry and Chemical Engineering, National Demonstration Center for, Experimental Chemistry Education, Nanjing University, Nanjing, 210023, China
| | - Jiaxing Qiu
- Institute of Chemistry and Biomedical Sciences, Jiangsu Key Laboratory of Advanced Organic Materials, School of Chemistry and Chemical Engineering, National Demonstration Center for, Experimental Chemistry Education, Nanjing University, Nanjing, 210023, China
| | - Xu Cheng
- Institute of Chemistry and Biomedical Sciences, Jiangsu Key Laboratory of Advanced Organic Materials, School of Chemistry and Chemical Engineering, National Demonstration Center for, Experimental Chemistry Education, Nanjing University, Nanjing, 210023, China.,State Key Laboratory Breeding Base of Green Chemistry-Synthesis Technology, Zhejiang University of Technology, Hangzhou, 310032, China
| | - Guigen Li
- Institute of Chemistry and Biomedical Sciences, Jiangsu Key Laboratory of Advanced Organic Materials, School of Chemistry and Chemical Engineering, National Demonstration Center for, Experimental Chemistry Education, Nanjing University, Nanjing, 210023, China.,Department of Chemistry and Biochemistry, Texas Tech University, Lubbock, TX, USA
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19
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Affiliation(s)
- Xihao Chang
- Hefei National Laboratory for Physical Sciences at the Microscale and Department of Chemistry University of Science and Technology of China 96 Jinzhai Road Hefei Anhui 230026 P. R. China
| | - Qinglin Zhang
- Hefei National Laboratory for Physical Sciences at the Microscale and Department of Chemistry University of Science and Technology of China 96 Jinzhai Road Hefei Anhui 230026 P. R. China
| | - Chang Guo
- Hefei National Laboratory for Physical Sciences at the Microscale and Department of Chemistry University of Science and Technology of China 96 Jinzhai Road Hefei Anhui 230026 P. R. China
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20
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Chang X, Zhang Q, Guo C. Asymmetric Electrochemical Transformations. Angew Chem Int Ed Engl 2020; 59:12612-12622. [DOI: 10.1002/anie.202000016] [Citation(s) in RCA: 71] [Impact Index Per Article: 17.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/01/2020] [Indexed: 01/15/2023]
Affiliation(s)
- Xihao Chang
- Hefei National Laboratory for Physical Sciences at the Microscale and Department of Chemistry University of Science and Technology of China 96 Jinzhai Road Hefei Anhui 230026 P. R. China
| | - Qinglin Zhang
- Hefei National Laboratory for Physical Sciences at the Microscale and Department of Chemistry University of Science and Technology of China 96 Jinzhai Road Hefei Anhui 230026 P. R. China
| | - Chang Guo
- Hefei National Laboratory for Physical Sciences at the Microscale and Department of Chemistry University of Science and Technology of China 96 Jinzhai Road Hefei Anhui 230026 P. R. China
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21
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Wang Y, Tian B, Ding M, Shi Z. Electrochemical Cross-Dehydrogenative Coupling between Phenols and β-Dicarbonyl Compounds: Facile Construction of Benzofurans. Chemistry 2020; 26:4297-4303. [PMID: 31900957 DOI: 10.1002/chem.201904750] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2019] [Indexed: 11/10/2022]
Abstract
Preparative electrochemical synthesis is an ideal method for establishing green, sustainable processes. The major benefits of an electro-organic strategy over that of conventional chemical synthesis are the avoidance of reagent waste and mild reaction conditions. Here, an intermolecular cross-dehydrogenative coupling between phenols and β-dicarbonyl compounds has been developed to build various benzofurans under undivided electrolytic conditions. Neither transition metals nor external chemical oxidants are required to facilitate the dehydrogenation and dehydration processes. The key factor in success was the use of nBu4 NBF4 as the electrolyte and hexafluoroisopropanol as the solvent, which play key roles in the cyclocondensation step. This electrolysis is scalable and can be used as a key step in drug synthesis. On the basis of several experimental results, the mechanism, particularly of the remarkable anodic oxidation and cyclization process, was illustrated.
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Affiliation(s)
- Yandong Wang
- State Key Laboratory of Coordination Chemistry, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, 210093, P.R. China
| | - Bailin Tian
- Key Lab of Mesoscopic Chemistry, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, 210093, P.R. China
| | - Mengning Ding
- Key Lab of Mesoscopic Chemistry, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, 210093, P.R. China
| | - Zhuangzhi Shi
- State Key Laboratory of Coordination Chemistry, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, 210093, P.R. China
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