1
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An B, Zhou L, Liu S, Zheng Y, Li C, Cui F, Yue C, Liu H, Sui Y, Ji C, Yan J, Li Y. Radical Homopolymerization of Linear α-Olefins Enabled by 1,4-Cyano Group Migration. Angew Chem Int Ed Engl 2024; 63:e202402511. [PMID: 38634323 DOI: 10.1002/anie.202402511] [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: 02/03/2024] [Revised: 04/04/2024] [Accepted: 04/17/2024] [Indexed: 04/19/2024]
Abstract
α-Olefins are valued and abundant building blocks from fossil resources. They are widely used to provide small-molecule or polymeric products. Despite numerous advantages of radical polymerization, it has been well-documented as textbook knowledge that α-olefins and their functionalized derivatives cannot be radically homopolymerized because of the degradative chain transfer side reactions. Herein, we report our studies on the homopolymerization of thiocyanate functionalized α-olefins enabled by 1,4-cyano group migration under radical conditions. By this approach, a library of ABC sequence-controlled polymers with high molecular weights can be prepared. We can also extend this strategy to the homopolymerization of α-substituted styrenic and acylate monomers which are known to be challenging to achieve. Overall, the demonstrated functional group migration radical polymerization could provide new possibilities to synthesize polymers with unprecedented main chain sequences and structures. These polymers are promising candidates for novel polymeric materials.
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Affiliation(s)
- Bang An
- School of Physical Science and Technology, ShanghaiTech University, Shanghai, 201210, China
| | - Litao Zhou
- School of Physical Science and Technology, ShanghaiTech University, Shanghai, 201210, China
| | - Shuai Liu
- School of Physical Science and Technology, ShanghaiTech University, Shanghai, 201210, China
| | - Yaxin Zheng
- School of Physical Science and Technology, ShanghaiTech University, Shanghai, 201210, China
| | - Changhu Li
- School of Physical Science and Technology, ShanghaiTech University, Shanghai, 201210, China
| | - Feichen Cui
- School of Physical Science and Technology, ShanghaiTech University, Shanghai, 201210, China
| | - Chaowei Yue
- School of Physical Science and Technology, ShanghaiTech University, Shanghai, 201210, China
| | - Hua Liu
- School of Physical Science and Technology, ShanghaiTech University, Shanghai, 201210, China
| | - Yang Sui
- School of Physical Science and Technology, ShanghaiTech University, Shanghai, 201210, China
| | - Chonglei Ji
- School of Physical Science and Technology, ShanghaiTech University, Shanghai, 201210, China
| | - Jiajun Yan
- School of Physical Science and Technology, ShanghaiTech University, Shanghai, 201210, China
| | - Yifan Li
- School of Physical Science and Technology, ShanghaiTech University, Shanghai, 201210, China
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2
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Singha T, Rouf Samim Mondal A, Midya S, Prasad Hari D. The Dowd–Beckwith Reaction: History, Strategies, and Synthetic Potential. Chemistry 2022; 28:e202202025. [DOI: 10.1002/chem.202202025] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2022] [Indexed: 11/08/2022]
Affiliation(s)
- Tushar Singha
- Department of Organic Chemistry Indian Institute of Scienece Bangalore 560012 India
| | | | - Suparnak Midya
- Department of Organic Chemistry Indian Institute of Scienece Bangalore 560012 India
| | - Durga Prasad Hari
- Department of Organic Chemistry Indian Institute of Scienece Bangalore 560012 India
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3
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Xie D, Chen H, Wei D, Wei B, Li Z, Zhang J, Yu W, Han B. Regioselective Fluoroalkylphosphorylation of Unactivated Alkenes by Radical‐Mediated Alkoxyphosphine Rearrangement**. Angew Chem Int Ed Engl 2022; 61:e202203398. [DOI: 10.1002/anie.202203398] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2022] [Indexed: 11/11/2022]
Affiliation(s)
- Dong‐Tai Xie
- State Key Laboratory of Applied Organic Chemistry (SKLAOC) College of Chemistry and Chemical Engineering Lanzhou University Lanzhou 730000 China
| | - Hong‐Lei Chen
- State Key Laboratory of Applied Organic Chemistry (SKLAOC) College of Chemistry and Chemical Engineering Lanzhou University Lanzhou 730000 China
| | - Dian Wei
- State Key Laboratory of Applied Organic Chemistry (SKLAOC) College of Chemistry and Chemical Engineering Lanzhou University Lanzhou 730000 China
| | - Bang‐Yi Wei
- State Key Laboratory of Applied Organic Chemistry (SKLAOC) College of Chemistry and Chemical Engineering Lanzhou University Lanzhou 730000 China
| | - Zheng‐Hu Li
- State Key Laboratory of Applied Organic Chemistry (SKLAOC) College of Chemistry and Chemical Engineering Lanzhou University Lanzhou 730000 China
| | - Jian‐Wu Zhang
- State Key Laboratory of Applied Organic Chemistry (SKLAOC) College of Chemistry and Chemical Engineering Lanzhou University Lanzhou 730000 China
| | - Wei Yu
- State Key Laboratory of Applied Organic Chemistry (SKLAOC) College of Chemistry and Chemical Engineering Lanzhou University Lanzhou 730000 China
| | - Bing Han
- State Key Laboratory of Applied Organic Chemistry (SKLAOC) College of Chemistry and Chemical Engineering Lanzhou University Lanzhou 730000 China
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4
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Xie DT, Chen HL, Wei D, Wei BY, Li ZH, Zhang JW, Yu W, Han B. Regioselective Fluoroalkylphosphorylation of Unactivated Alkenes by Radical–Mediated Alkoxyphosphine Rearrangement. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202203398] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Dong-Tai Xie
- Lanzhou University College of Chemistry and Chemical Engineering CHINA
| | - Hong-Lei Chen
- Lanzhou University College of Chemistry and Chemical Engineering CHINA
| | - Dian Wei
- Lanzhou University College of Chemistry and Chemical Engineering CHINA
| | - Bang-Yi Wei
- Lanzhou University College of Chemistry and Chemical Engineering CHINA
| | - Zheng-Hu Li
- Lanzhou University College of Chemistry and Chemical Engineering CHINA
| | - Jian-Wu Zhang
- Lanzhou University College of Chemistry and Chemical Engineering CHINA
| | - Wei Yu
- Lanzhou University College of Chemistry and Chemical Engineering CHINA
| | - Bing Han
- Lanzhou University Department of Chemistry 222 South Tianshui Rd. 730000 Lanzhou CHINA
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5
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Guo K, Gu C, Li Y, Xie X, Zhang H, Chen K, Zhu Y. Photoredox Catalyzed Trifluoromethyl Radical‐Triggered Trifunctionalization of 5‐Hexenenitriles
via
Cyano Migration. Adv Synth Catal 2022. [DOI: 10.1002/adsc.202101519] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- Kang Guo
- Jiangsu Key Laboratory of Pesticide Science and Department of Chemistry, College of Sciences Nanjing Agricultural University Nanjing 210095 People's Republic of China
| | - Chen Gu
- Jiangsu Key Laboratory of Pesticide Science and Department of Chemistry, College of Sciences Nanjing Agricultural University Nanjing 210095 People's Republic of China
| | - Yun Li
- Jiangsu Key Laboratory of Pesticide Science and Department of Chemistry, College of Sciences Nanjing Agricultural University Nanjing 210095 People's Republic of China
| | - Xiaofei Xie
- Jiangsu Key Laboratory of Pesticide Science and Department of Chemistry, College of Sciences Nanjing Agricultural University Nanjing 210095 People's Republic of China
| | - Honglin Zhang
- Jiangsu Key Laboratory of Pesticide Science and Department of Chemistry, College of Sciences Nanjing Agricultural University Nanjing 210095 People's Republic of China
| | - Kang Chen
- Jiangsu Key Laboratory of Pesticide Science and Department of Chemistry, College of Sciences Nanjing Agricultural University Nanjing 210095 People's Republic of China
| | - Yingguang Zhu
- Jiangsu Key Laboratory of Pesticide Science and Department of Chemistry, College of Sciences Nanjing Agricultural University Nanjing 210095 People's Republic of China
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6
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Wei D, Liu T, He Y, Wei B, Pan J, Zhang J, Jiao N, Han B. Radical 1,4/5-Amino Shift Enables Access to Fluoroalkyl-Containing Primary β(γ)-Aminoketones under Metal-Free Conditions. Angew Chem Int Ed Engl 2021; 60:26308-26313. [PMID: 34437754 DOI: 10.1002/anie.202110583] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2021] [Indexed: 12/21/2022]
Abstract
A novel radical 1,4/5-amino shift from the oxygen center of alkene-tethered diphenyl ketoxime ethers to the carbon center to achieve high value-added fluoroalkyl-containing primary β(γ)-amino-ketones is reported. Mechanism studies reveal that the migration is triggered by the alkene addition of fluoroalkyl radical derived from the electron donor-acceptor (EDA) complex of Togni's reagent II or fluoroalkyl iodides and quinuclidine, and involves a unique 5(6)-exo-trig cyclization of the carbon-centered radical onto the N-atom of ketoxime ethers followed by a cascade sequence of N-O bond cleavage and dehydrogenation. Notably, besides Togni's reagent II and fluoroalkyl iodides, this protocol is also compatible with other radical precursors to provide various functionalized primary aminoketones.
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Affiliation(s)
- Dian Wei
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, 730000, China
| | - Tuming Liu
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, 730000, China
| | - Yiheng He
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, 730000, China
| | - Bangyi Wei
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, 730000, China
| | - Jiahao Pan
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, 730000, China
| | - Jianwu Zhang
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, 730000, China
| | - Ning Jiao
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Beijing, 100191, China
| | - Bing Han
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, 730000, China
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7
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Wei D, Liu T, He Y, Wei B, Pan J, Zhang J, Jiao N, Han B. Radical 1,4/5‐Amino Shift Enables Access to Fluoroalkyl‐Containing Primary β(γ)‐Aminoketones under Metal‐Free Conditions. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202110583] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Dian Wei
- State Key Laboratory of Applied Organic Chemistry College of Chemistry and Chemical Engineering Lanzhou University Lanzhou 730000 China
| | - Tuming Liu
- State Key Laboratory of Applied Organic Chemistry College of Chemistry and Chemical Engineering Lanzhou University Lanzhou 730000 China
| | - Yiheng He
- State Key Laboratory of Applied Organic Chemistry College of Chemistry and Chemical Engineering Lanzhou University Lanzhou 730000 China
| | - Bangyi Wei
- State Key Laboratory of Applied Organic Chemistry College of Chemistry and Chemical Engineering Lanzhou University Lanzhou 730000 China
| | - Jiahao Pan
- State Key Laboratory of Applied Organic Chemistry College of Chemistry and Chemical Engineering Lanzhou University Lanzhou 730000 China
| | - Jianwu Zhang
- State Key Laboratory of Applied Organic Chemistry College of Chemistry and Chemical Engineering Lanzhou University Lanzhou 730000 China
| | - Ning Jiao
- State Key Laboratory of Natural and Biomimetic Drugs School of Pharmaceutical Sciences Peking University Beijing 100191 China
| | - Bing Han
- State Key Laboratory of Applied Organic Chemistry College of Chemistry and Chemical Engineering Lanzhou University Lanzhou 730000 China
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8
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Le Du E, Duhail T, Wodrich MD, Scopelliti R, Fadaei‐Tirani F, Anselmi E, Magnier E, Waser J. Structure and Reactivity of N-Heterocyclic Alkynyl Hypervalent Iodine Reagents. Chemistry 2021; 27:10979-10986. [PMID: 33978974 PMCID: PMC8361724 DOI: 10.1002/chem.202101475] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2021] [Indexed: 12/23/2022]
Abstract
Ethynylbenziodoxol(on)e (EBX) cyclic hypervalent iodine reagents have become popular reagents for the alkynylation of radicals and nucleophiles, but only offer limited possibilities for further structure and reactivity fine-tuning. Herein, the synthesis of new N-heterocyclic hypervalent iodine reagents with increased structural flexibility based on amide, amidine and sulfoximine scaffolds is reported. Solid-state structures of the reagents are reported and the analysis of the I-Calkyne bond lengths allowed assessing the trans-effect of the different substituents. Molecular electrostatic potential (MEP) maps of the reagents, derived from DFT computations, revealed less pronounced σ-hole regions for sulfonamide-based compounds. Most reagents reacted well in the alkynylation of β-ketoesters. The alkynylation of thiols afforded more variable yields, with compounds with a stronger σ-hole reacting better. In metal-mediated transformations, the N-heterocyclic hypervalent iodine reagents gave inferior results when compared to the O-based EBX reagents.
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Affiliation(s)
- Eliott Le Du
- Laboratory of Catalysis and Organic SynthesisEcole Polytechnique Fédérale de LausanneEPFL SB ISIC LCSO, BCH 43061015LausanneSwitzerland
| | - Thibaut Duhail
- Institut Lavoisier de VersaillesUniversité Paris-Saclay, UVSQ, CNRS, UMR 81807800VersaillesFrance
| | - Matthew D. Wodrich
- Laboratory of Catalysis and Organic SynthesisEcole Polytechnique Fédérale de LausanneEPFL SB ISIC LCSO, BCH 43061015LausanneSwitzerland
| | - Rosario Scopelliti
- Institute of Chemical Sciences and EngineeringEcole Polytechnique Fédérale de LausanneEPFL SB ISIC GE, BCH 2111, 1015 LausanneEPFL SB ISIC LCSO, BCH 43061015LausanneSwitzerland
| | - Farzaneh Fadaei‐Tirani
- Institute of Chemical Sciences and EngineeringEcole Polytechnique Fédérale de LausanneEPFL SB ISIC GE, BCH 2111, 1015 LausanneEPFL SB ISIC LCSO, BCH 43061015LausanneSwitzerland
| | - Elsa Anselmi
- Institut Lavoisier de VersaillesUniversité Paris-Saclay, UVSQ, CNRS, UMR 81807800VersaillesFrance
- Université de ToursFaculté des Sciences et Techniques37200ToursFrance
| | - Emmanuel Magnier
- Institut Lavoisier de VersaillesUniversité Paris-Saclay, UVSQ, CNRS, UMR 81807800VersaillesFrance
| | - Jerome Waser
- Laboratory of Catalysis and Organic SynthesisEcole Polytechnique Fédérale de LausanneEPFL SB ISIC LCSO, BCH 43061015LausanneSwitzerland
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9
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Lawer A, Epton RG, Stephens TC, Palate KY, Lodi M, Marotte E, Lamb KJ, Sangha JK, Lynam JM, Unsworth WP. Evaluating the Viability of Successive Ring-Expansions Based on Amino Acid and Hydroxyacid Side-Chain Insertion. Chemistry 2020; 26:12674-12683. [PMID: 32432817 PMCID: PMC7589337 DOI: 10.1002/chem.202002164] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2020] [Indexed: 01/20/2023]
Abstract
The outcome of ring-expansion reactions based on amino/hydroxyacid side-chain insertion is strongly dependent on ring size. This manuscript, which builds upon our previous work on Successive Ring Expansion (SuRE) methods, details efforts to better define the scope and limitations of these reactions on lactam and β-ketoester ring systems with respect to ring size and additional functionality. The synthetic results provide clear guidelines as to which substrate classes are more likely to be successful and are supported by computational results, using a density functional theory (DFT) approach. Calculating the relative Gibbs free energies of the three isomeric species that are formed reversibly during ring expansion enables the viability of new synthetic reactions to be correctly predicted in most cases. The new synthetic and computational results are expected to support the design of new lactam- and β-ketoester-based ring-expansion reactions.
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Affiliation(s)
- Aggie Lawer
- Department of ChemistryUniversity of YorkYorkYO10 5DDUK
| | - Ryan G. Epton
- Department of ChemistryUniversity of YorkYorkYO10 5DDUK
| | | | | | - Mahendar Lodi
- Department of ChemistryUniversity of YorkYorkYO10 5DDUK
| | - Emilie Marotte
- ENSICAEN6 Boulevard Maréchal Juin, CS 4505314050Caen Cedex 04France
| | - Katie J. Lamb
- Department of ChemistryUniversity of YorkYorkYO10 5DDUK
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10
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Li Y, Liu J. Highly Specific Recognition of Guanosine Using Engineered Base-Excised Aptamers. Chemistry 2020; 26:13644-13651. [PMID: 32700427 DOI: 10.1002/chem.202001835] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2020] [Revised: 07/20/2020] [Indexed: 12/18/2022]
Abstract
Purines and their derivatives are highly important molecules in biology for nucleic acid synthesis, energy storage, and signaling. Although many DNA aptamers have been obtained for binding adenine derivatives such as adenosine, adenosine monophosphate, and adenosine triphosphate, success for the specific binding of guanosine has been limited. Instead of performing new aptamer selections, we report herein a base-excision strategy to engineer existing aptamers to bind guanosine. Both a Na+ -binding aptamer and the classical adenosine aptamer have been manipulated as base-excising scaffolds. A total of seven guanosine aptamers were designed, of which the G16-deleted Na+ aptamer showed the highest bindng specificity and affinity for guanosine with an apparent dissociation constant of 0.78 mm. Single monophosphate difference in the target molecule was also recognizable. The generality of both the aptamer scaffold and excised site were systematically studied. Overall, this work provides a few guanosine binding aptamers by using a non-SELEX method. It also provides deeper insights into the engineering of aptamers for molecular recognition.
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Affiliation(s)
- Yuqing Li
- Department of Chemistry, Waterloo Institute for Nanotechnology, University of Waterloo, Waterloo, Ontario, N2L 3G1, Canada
| | - Juewen Liu
- Department of Chemistry, Waterloo Institute for Nanotechnology, University of Waterloo, Waterloo, Ontario, N2L 3G1, Canada
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11
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Yuan Y, Guo Z, Mu Y, Wang Y, Xu M, Li Y. Synthesis of Spiro[5.n (n=6–8)]heterocycles through Successive Ring‐Expansion/Indole C‐2 Functionalization. Adv Synth Catal 2020. [DOI: 10.1002/adsc.201901631] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- Yang Yuan
- School of Chemistry and Molecular EngineeringEast China Normal University 500 Dongchuan Road Shanghai 200241 People's Republic of China
| | - Zixia Guo
- School of Chemistry and Molecular EngineeringEast China Normal University 500 Dongchuan Road Shanghai 200241 People's Republic of China
| | - Yuanyang Mu
- School of Chemistry and Molecular EngineeringEast China Normal University 500 Dongchuan Road Shanghai 200241 People's Republic of China
| | - Ye Wang
- School of Chemistry and Molecular EngineeringEast China Normal University 500 Dongchuan Road Shanghai 200241 People's Republic of China
| | - Murong Xu
- School of Chemistry and Molecular EngineeringEast China Normal University 500 Dongchuan Road Shanghai 200241 People's Republic of China
| | - Yanzhong Li
- School of Chemistry and Molecular EngineeringEast China Normal University 500 Dongchuan Road Shanghai 200241 People's Republic of China
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12
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Uno H, Punna N, Tokunaga E, Shiro M, Shibata N. Synthesis of Both Enantiomers of Nine‐Membered CF
3
‐Substituted Heterocycles Using a Single Chiral Ligand: Palladium‐Catalyzed Decarboxylative Ring Expansion with Kinetic Resolution. Angew Chem Int Ed Engl 2020; 59:8187-8194. [DOI: 10.1002/anie.201915021] [Citation(s) in RCA: 37] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2019] [Indexed: 12/14/2022]
Affiliation(s)
- Hiroto Uno
- Department of Nanopharmaceutical Sciences & Department of Life Science and Applied ChemistryNagoya Institute of Technology Gokiso, Showa-ku Nagoya 466-8555 Japan
| | - Nagender Punna
- Department of Nanopharmaceutical Sciences & Department of Life Science and Applied ChemistryNagoya Institute of Technology Gokiso, Showa-ku Nagoya 466-8555 Japan
| | - Etsuko Tokunaga
- Department of Nanopharmaceutical Sciences & Department of Life Science and Applied ChemistryNagoya Institute of Technology Gokiso, Showa-ku Nagoya 466-8555 Japan
| | - Motoo Shiro
- Rigaku Corporation 3-9-12, Matsubara-cho, Akishima-shi Tokyo 196-8666 Japan
| | - Norio Shibata
- Department of Nanopharmaceutical Sciences & Department of Life Science and Applied ChemistryNagoya Institute of Technology Gokiso, Showa-ku Nagoya 466-8555 Japan
- Institute of Advanced Fluorine-Containing MaterialsZhejiang Normal University 321004 Jinhua China
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13
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Uno H, Punna N, Tokunaga E, Shiro M, Shibata N. Synthesis of Both Enantiomers of Nine‐Membered CF
3
‐Substituted Heterocycles Using a Single Chiral Ligand: Palladium‐Catalyzed Decarboxylative Ring Expansion with Kinetic Resolution. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.201915021] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Hiroto Uno
- Department of Nanopharmaceutical Sciences & Department of Life Science and Applied ChemistryNagoya Institute of Technology Gokiso, Showa-ku Nagoya 466-8555 Japan
| | - Nagender Punna
- Department of Nanopharmaceutical Sciences & Department of Life Science and Applied ChemistryNagoya Institute of Technology Gokiso, Showa-ku Nagoya 466-8555 Japan
| | - Etsuko Tokunaga
- Department of Nanopharmaceutical Sciences & Department of Life Science and Applied ChemistryNagoya Institute of Technology Gokiso, Showa-ku Nagoya 466-8555 Japan
| | - Motoo Shiro
- Rigaku Corporation 3-9-12, Matsubara-cho, Akishima-shi Tokyo 196-8666 Japan
| | - Norio Shibata
- Department of Nanopharmaceutical Sciences & Department of Life Science and Applied ChemistryNagoya Institute of Technology Gokiso, Showa-ku Nagoya 466-8555 Japan
- Institute of Advanced Fluorine-Containing MaterialsZhejiang Normal University 321004 Jinhua China
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14
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Li J, Liu Y, Zou W, Zeng R, Zhang X, Liu Y, Han B, He Y, Leng H, Li Q. Radical Acylfluoroalkylation of Olefins through N‐Heterocyclic Carbene Organocatalysis. Angew Chem Int Ed Engl 2020; 59:1863-1870. [DOI: 10.1002/anie.201912450] [Citation(s) in RCA: 94] [Impact Index Per Article: 23.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2019] [Revised: 11/10/2019] [Indexed: 12/14/2022]
Affiliation(s)
- Jun‐Long Li
- Antibiotics Research and Re-evaluation Key Laboratory of Sichuan ProvinceSichuan Industrial Institute of AntibioticsChengdu University Chengdu 610052 China
- Chengdu Institute of Organic ChemistryChinese Academy of Sciences Chengdu 610041 China
| | - Yan‐Qing Liu
- State Key Laboratory of Southwestern Chinese Medicine ResourcesSchool of PharmacyChengdu University of Traditional Chinese Medicine Chengdu 611137 China
| | - Wen‐Lin Zou
- Antibiotics Research and Re-evaluation Key Laboratory of Sichuan ProvinceSichuan Industrial Institute of AntibioticsChengdu University Chengdu 610052 China
| | - Rong Zeng
- Antibiotics Research and Re-evaluation Key Laboratory of Sichuan ProvinceSichuan Industrial Institute of AntibioticsChengdu University Chengdu 610052 China
| | - Xiang Zhang
- Antibiotics Research and Re-evaluation Key Laboratory of Sichuan ProvinceSichuan Industrial Institute of AntibioticsChengdu University Chengdu 610052 China
- Chengdu Institute of Organic ChemistryChinese Academy of Sciences Chengdu 610041 China
| | - Yue Liu
- Antibiotics Research and Re-evaluation Key Laboratory of Sichuan ProvinceSichuan Industrial Institute of AntibioticsChengdu University Chengdu 610052 China
| | - Bo Han
- State Key Laboratory of Southwestern Chinese Medicine ResourcesSchool of PharmacyChengdu University of Traditional Chinese Medicine Chengdu 611137 China
| | - Yu He
- Antibiotics Research and Re-evaluation Key Laboratory of Sichuan ProvinceSichuan Industrial Institute of AntibioticsChengdu University Chengdu 610052 China
| | - Hai‐Jun Leng
- Antibiotics Research and Re-evaluation Key Laboratory of Sichuan ProvinceSichuan Industrial Institute of AntibioticsChengdu University Chengdu 610052 China
| | - Qing‐Zhu Li
- Antibiotics Research and Re-evaluation Key Laboratory of Sichuan ProvinceSichuan Industrial Institute of AntibioticsChengdu University Chengdu 610052 China
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15
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Li J, Liu Y, Zou W, Zeng R, Zhang X, Liu Y, Han B, He Y, Leng H, Li Q. Radical Acylfluoroalkylation of Olefins through N‐Heterocyclic Carbene Organocatalysis. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201912450] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Jun‐Long Li
- Antibiotics Research and Re-evaluation Key Laboratory of Sichuan ProvinceSichuan Industrial Institute of AntibioticsChengdu University Chengdu 610052 China
- Chengdu Institute of Organic ChemistryChinese Academy of Sciences Chengdu 610041 China
| | - Yan‐Qing Liu
- State Key Laboratory of Southwestern Chinese Medicine ResourcesSchool of PharmacyChengdu University of Traditional Chinese Medicine Chengdu 611137 China
| | - Wen‐Lin Zou
- Antibiotics Research and Re-evaluation Key Laboratory of Sichuan ProvinceSichuan Industrial Institute of AntibioticsChengdu University Chengdu 610052 China
| | - Rong Zeng
- Antibiotics Research and Re-evaluation Key Laboratory of Sichuan ProvinceSichuan Industrial Institute of AntibioticsChengdu University Chengdu 610052 China
| | - Xiang Zhang
- Antibiotics Research and Re-evaluation Key Laboratory of Sichuan ProvinceSichuan Industrial Institute of AntibioticsChengdu University Chengdu 610052 China
- Chengdu Institute of Organic ChemistryChinese Academy of Sciences Chengdu 610041 China
| | - Yue Liu
- Antibiotics Research and Re-evaluation Key Laboratory of Sichuan ProvinceSichuan Industrial Institute of AntibioticsChengdu University Chengdu 610052 China
| | - Bo Han
- State Key Laboratory of Southwestern Chinese Medicine ResourcesSchool of PharmacyChengdu University of Traditional Chinese Medicine Chengdu 611137 China
| | - Yu He
- Antibiotics Research and Re-evaluation Key Laboratory of Sichuan ProvinceSichuan Industrial Institute of AntibioticsChengdu University Chengdu 610052 China
| | - Hai‐Jun Leng
- Antibiotics Research and Re-evaluation Key Laboratory of Sichuan ProvinceSichuan Industrial Institute of AntibioticsChengdu University Chengdu 610052 China
| | - Qing‐Zhu Li
- Antibiotics Research and Re-evaluation Key Laboratory of Sichuan ProvinceSichuan Industrial Institute of AntibioticsChengdu University Chengdu 610052 China
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16
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Lawer A, Rossi‐Ashton JA, Stephens TC, Challis BJ, Epton RG, Lynam JM, Unsworth WP. Internal Nucleophilic Catalyst Mediated Cyclisation/Ring Expansion Cascades for the Synthesis of Medium‐Sized Lactones and Lactams. Angew Chem Int Ed Engl 2019; 58:13942-13947. [DOI: 10.1002/anie.201907206] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2019] [Revised: 07/23/2019] [Indexed: 12/12/2022]
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17
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Wu Y, Zhang Y, Yang Z, Jiao J, Zheng X, Feng W, Zhang M, Cheng H, Tang L. Dual Roles of tert-Butyl Nitrite in the Transition Metal- and External Oxidant-Free Trifluoromethyloximation of Alkenes. CHEMSUSCHEM 2019; 12:3960-3966. [PMID: 31359635 DOI: 10.1002/cssc.201901856] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/09/2019] [Revised: 07/29/2019] [Indexed: 06/10/2023]
Abstract
By employing tert-butyl nitrite as both nitrogen source and oxidant, the trifluoromethyloximation of alkenes proceeds smoothly in a free-radical process. The developed difunctionalization reaction enables practical and efficient synthesis of a wide range of α-CF3 ketoximes in moderate yields with excellent regioselectivity. This method features the use of readily available and stable alkenes as substrates and inexpensive CF3 SO2 Na as a CF3 reagent, no involvement of transition metals or external oxidant, and room-temperature conditions. Moreover, a scale-up of the reaction, further transformation of the products into various valuable CF3 -containing compounds, and removal of the trifluoromethyl group are readily achieved.
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Affiliation(s)
- Ya Wu
- School of Pharmacy &, Collaborative Innovation Center for Respiratory Disease Diagnosis and Treatment &, Chinese Medicine Development of Henan Province, Henan University of Chinese Medicine, Zhengzhou, 450046, P. R. China
| | - Yanli Zhang
- School of Pharmacy &, Collaborative Innovation Center for Respiratory Disease Diagnosis and Treatment &, Chinese Medicine Development of Henan Province, Henan University of Chinese Medicine, Zhengzhou, 450046, P. R. China
| | - Zhen Yang
- College of Chemistry and Chemical Engineering, Xinyang Normal University, Xinyang, 464000, P. R. China
| | - Jingchao Jiao
- College of Chemistry and Chemical Engineering, Xinyang Normal University, Xinyang, 464000, P. R. China
| | - Xiaoke Zheng
- School of Pharmacy &, Collaborative Innovation Center for Respiratory Disease Diagnosis and Treatment &, Chinese Medicine Development of Henan Province, Henan University of Chinese Medicine, Zhengzhou, 450046, P. R. China
| | - Weisheng Feng
- School of Pharmacy &, Collaborative Innovation Center for Respiratory Disease Diagnosis and Treatment &, Chinese Medicine Development of Henan Province, Henan University of Chinese Medicine, Zhengzhou, 450046, P. R. China
| | - Mengsha Zhang
- School of Pharmacy &, Collaborative Innovation Center for Respiratory Disease Diagnosis and Treatment &, Chinese Medicine Development of Henan Province, Henan University of Chinese Medicine, Zhengzhou, 450046, P. R. China
| | - Hao Cheng
- College of Chemistry and Chemical Engineering, Xinyang Normal University, Xinyang, 464000, P. R. China
| | - Lin Tang
- College of Chemistry and Chemical Engineering, Xinyang Normal University, Xinyang, 464000, P. R. China
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18
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Lawer A, Rossi‐Ashton JA, Stephens TC, Challis BJ, Epton RG, Lynam JM, Unsworth WP. Internal Nucleophilic Catalyst Mediated Cyclisation/Ring Expansion Cascades for the Synthesis of Medium‐Sized Lactones and Lactams. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201907206] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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19
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Li D, Wang Y, Jia Z, Ou Z, Dong Y, Lv C, Fu G, Liang D. Cu-Mediated Synthesis of Indolines and Dihydroisoquinolinones through Arylperfluoroalkylation of Unactivated Alkenes. European J Org Chem 2019. [DOI: 10.1002/ejoc.201900680] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Affiliation(s)
- Dandan Li
- School of Chemistry and Chemical Engineering; Xuchang University; No. 88, Bayi Road, Xuchang, Henan 461000 P. R. China
| | - Yan Wang
- Department of Chemistry; Kunming University; 650214 Kunming P. R. China
| | - Zhenzhen Jia
- School of Chemistry and Chemical Engineering; Xuchang University; No. 88, Bayi Road, Xuchang, Henan 461000 P. R. China
| | - Zhaocheng Ou
- School of Chemistry and Chemical Engineering; Xuchang University; No. 88, Bayi Road, Xuchang, Henan 461000 P. R. China
| | - Yongrui Dong
- Department of Chemistry; Kunming University; 650214 Kunming P. R. China
| | - Cunjie Lv
- School of Chemistry and Chemical Engineering; Xuchang University; No. 88, Bayi Road, Xuchang, Henan 461000 P. R. China
| | - Guangbin Fu
- School of Chemistry and Chemical Engineering; Xuchang University; No. 88, Bayi Road, Xuchang, Henan 461000 P. R. China
| | - Deqiang Liang
- Department of Chemistry; Kunming University; 650214 Kunming P. R. China
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20
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Xu HH, Song J, Xu HC. Electrochemical Difluoromethylation of Electron-Deficient Alkenes. CHEMSUSCHEM 2019; 12:3060-3063. [PMID: 30684294 DOI: 10.1002/cssc.201803058] [Citation(s) in RCA: 40] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/29/2018] [Indexed: 06/09/2023]
Abstract
Electrochemical 1,2-hydroxydifluoromethylation and C-H difluoromethylation of acrylamides were developed by using CF2 HSO2 NHNHBoc as the source of the CF2 H group. These electricity-powered oxidative alkene functionalization reactions do not need transition-metal catalysts or chemical oxidants. The reaction outcome, 1,2-difuntionalization or C-H functionalization, is determined by the substituents on the amide nitrogen atom of the acrylamides instead of by the reaction conditions.
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Affiliation(s)
- He-Huan Xu
- State Key Laboratory of Physical Chemistry of Solid Surfaces, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005, P.R. China
| | - Jinshuai Song
- College of Chemistry and Molecular Engineering, Zhengzhou University, Zhengzhou, 450001, P.R. China
| | - Hai-Chao Xu
- State Key Laboratory of Physical Chemistry of Solid Surfaces, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005, P.R. China
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21
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Qian W, Tan X, Su Q, Cheng W, Xu F, Dong L, Zhang S. Transesterification of Isosorbide with Dimethyl Carbonate Catalyzed by Task-Specific Ionic Liquids. CHEMSUSCHEM 2019; 12:1169-1178. [PMID: 30618199 DOI: 10.1002/cssc.201802572] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/07/2018] [Revised: 01/05/2019] [Indexed: 06/09/2023]
Abstract
Green synthesis of high-molecular-weight isosorbide-based polycarbonate (PIC) with excellent properties is a tremendous challenge and is profoundly influenced by the precursor. Herein, an ecofriendly catalyst was employed to obtain the more reactive PIC precursor dicarboxymethyl isosorbide (DC) with 99.0 % selectivity through the transesterification reaction of isosorbide with dimethyl carbonate. This is the indispensable stage of a one-pot green synthesis of PIC, playing a critical role in giving an insight into the polymerization mechanism of polymer synthesis through the melt transesterification reaction. To this end, a series of 4-substituted phenolate ionic liquids (ILs) were developed as a new type of high-efficiency catalyst for this reaction. These homogeneous ILs exhibited outstanding catalytic performances. The DC selectivity increased gradually with decreasing IL basicity; among the ILs studied, trihexyl(tetradecyl)phosphonium 4-iodophenolate ([P66614 ][4-I-Phen]) showed the highest catalytic activity. Additionally, according to the experimental results and DFT calculations, a plausible nucleophilic activation mechanism was proposed, which confirmed that the reaction is activated through the formation of H-bonds and electrostatic interactions with the IL catalyst. This strategy of tunable basicity and structure of anions in ILs affords an opportunity to develop other ILs for the transesterification reaction, thereby conveniently providing a variety of polymers through a green synthetic pathway.
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Affiliation(s)
- Wei Qian
- Key Laboratory of Green Process and Engineering, State Key Laboratory of Multiphase Complex Systems, Beijing Key Laboratory of Ionic Liquids Clean Process, Institute of Process Engineering, Chinese Academy of Sciences, Beijing, 100190, P.R. China
- School of Chemistry and Chemical Engineering, University of Chinese Academy of Sciences, 19A Yuquan Road, Shijingshan District, Beijing, 100049, P.R. China
| | - Xin Tan
- Key Laboratory of Green Process and Engineering, State Key Laboratory of Multiphase Complex Systems, Beijing Key Laboratory of Ionic Liquids Clean Process, Institute of Process Engineering, Chinese Academy of Sciences, Beijing, 100190, P.R. China
- School of Chemistry and Chemical Engineering, University of Chinese Academy of Sciences, 19A Yuquan Road, Shijingshan District, Beijing, 100049, P.R. China
| | - Qian Su
- Key Laboratory of Green Process and Engineering, State Key Laboratory of Multiphase Complex Systems, Beijing Key Laboratory of Ionic Liquids Clean Process, Institute of Process Engineering, Chinese Academy of Sciences, Beijing, 100190, P.R. China
| | - Weiguo Cheng
- Key Laboratory of Green Process and Engineering, State Key Laboratory of Multiphase Complex Systems, Beijing Key Laboratory of Ionic Liquids Clean Process, Institute of Process Engineering, Chinese Academy of Sciences, Beijing, 100190, P.R. China
| | - Fei Xu
- Key Laboratory of Green Process and Engineering, State Key Laboratory of Multiphase Complex Systems, Beijing Key Laboratory of Ionic Liquids Clean Process, Institute of Process Engineering, Chinese Academy of Sciences, Beijing, 100190, P.R. China
| | - Li Dong
- Key Laboratory of Green Process and Engineering, State Key Laboratory of Multiphase Complex Systems, Beijing Key Laboratory of Ionic Liquids Clean Process, Institute of Process Engineering, Chinese Academy of Sciences, Beijing, 100190, P.R. China
| | - Suojiang Zhang
- Key Laboratory of Green Process and Engineering, State Key Laboratory of Multiphase Complex Systems, Beijing Key Laboratory of Ionic Liquids Clean Process, Institute of Process Engineering, Chinese Academy of Sciences, Beijing, 100190, P.R. China
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22
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Han G, Xue L, Zhao L, Zhu T, Hou J, Song Y, Liu Y. Access to CF3-Containing Cyclopentaquinolinone Derivatives from Indolyl-ynones via Silver-Catalyzed One-pot Reaction. Adv Synth Catal 2018. [DOI: 10.1002/adsc.201801482] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Guifang Han
- Tianjin Key Laboratory on Technologies Enabling Development of Clinical Therapeutics and Diagnostics, School of Pharmacy; Tianjin Medical University; Tianjin 300070 People's Republic of China
| | - Li Xue
- Tianjin Key Laboratory on Technologies Enabling Development of Clinical Therapeutics and Diagnostics, School of Pharmacy; Tianjin Medical University; Tianjin 300070 People's Republic of China
| | - Lili Zhao
- Tianjin Key Laboratory on Technologies Enabling Development of Clinical Therapeutics and Diagnostics, School of Pharmacy; Tianjin Medical University; Tianjin 300070 People's Republic of China
| | - Tiaozhen Zhu
- Tianjin Key Laboratory on Technologies Enabling Development of Clinical Therapeutics and Diagnostics, School of Pharmacy; Tianjin Medical University; Tianjin 300070 People's Republic of China
| | - Jingli Hou
- Tianjin Key Laboratory on Technologies Enabling Development of Clinical Therapeutics and Diagnostics, School of Pharmacy; Tianjin Medical University; Tianjin 300070 People's Republic of China
| | - Yuguang Song
- Tianjin Key Laboratory on Technologies Enabling Development of Clinical Therapeutics and Diagnostics, School of Pharmacy; Tianjin Medical University; Tianjin 300070 People's Republic of China
| | - Yangping Liu
- Tianjin Key Laboratory on Technologies Enabling Development of Clinical Therapeutics and Diagnostics, School of Pharmacy; Tianjin Medical University; Tianjin 300070 People's Republic of China
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23
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Yu J, Wu Z, Zhu C. Efficient Docking–Migration Strategy for Selective Radical Difluoromethylation of Alkenes. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201811346] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Jiajia Yu
- Key Laboratory of Organic Synthesis of Jiangsu Province College of Chemistry Chemical Engineering and Materials Science Soochow University 199 Ren-Ai Road Suzhou Jiangsu 215123 China
| | - Zhen Wu
- Key Laboratory of Organic Synthesis of Jiangsu Province College of Chemistry Chemical Engineering and Materials Science Soochow University 199 Ren-Ai Road Suzhou Jiangsu 215123 China
| | - Chen Zhu
- Key Laboratory of Organic Synthesis of Jiangsu Province College of Chemistry Chemical Engineering and Materials Science Soochow University 199 Ren-Ai Road Suzhou Jiangsu 215123 China
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24
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Yu J, Wu Z, Zhu C. Efficient Docking–Migration Strategy for Selective Radical Difluoromethylation of Alkenes. Angew Chem Int Ed Engl 2018; 57:17156-17160. [DOI: 10.1002/anie.201811346] [Citation(s) in RCA: 91] [Impact Index Per Article: 15.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2018] [Revised: 10/28/2018] [Indexed: 12/29/2022]
Affiliation(s)
- Jiajia Yu
- Key Laboratory of Organic Synthesis of Jiangsu Province College of Chemistry Chemical Engineering and Materials Science Soochow University 199 Ren-Ai Road Suzhou Jiangsu 215123 China
| | - Zhen Wu
- Key Laboratory of Organic Synthesis of Jiangsu Province College of Chemistry Chemical Engineering and Materials Science Soochow University 199 Ren-Ai Road Suzhou Jiangsu 215123 China
| | - Chen Zhu
- Key Laboratory of Organic Synthesis of Jiangsu Province College of Chemistry Chemical Engineering and Materials Science Soochow University 199 Ren-Ai Road Suzhou Jiangsu 215123 China
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25
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Gao Y, Mei H, Han J, Pan Y. Electrochemical Alkynyl/Alkenyl Migration for the Radical Difunctionalization of Alkenes. Chemistry 2018; 24:17205-17209. [DOI: 10.1002/chem.201804157] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2018] [Revised: 09/11/2018] [Indexed: 12/22/2022]
Affiliation(s)
- Yongyuan Gao
- School of Chemistry and Chemical Engineering; State Key Laboratory of Coordination Chemistry; Nanjing University; Nanjing 210093 P. R. China
| | - Haibo Mei
- School of Chemistry and Chemical Engineering; State Key Laboratory of Coordination Chemistry; Nanjing University; Nanjing 210093 P. R. China
| | - Jianlin Han
- School of Chemistry and Chemical Engineering; State Key Laboratory of Coordination Chemistry; Nanjing University; Nanjing 210093 P. R. China
- Jiangsu Key Laboratory of Advanced Organic Materials; Nanjing University; Nanjing 210093 P. R. China
| | - Yi Pan
- School of Chemistry and Chemical Engineering; State Key Laboratory of Coordination Chemistry; Nanjing University; Nanjing 210093 P. R. China
- Jiangsu Key Laboratory of Advanced Organic Materials; Nanjing University; Nanjing 210093 P. R. China
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26
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Wang N, Gu QS, Li ZL, Li Z, Guo YL, Guo Z, Liu XY. Direct Photocatalytic Synthesis of Medium-Sized Lactams by C−C Bond Cleavage. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201808890] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Na Wang
- Department of Chemistry and Shenzhen Grubbs Institute; Southern University of Science and Technology; Shenzhen 518055 China
- College of Materials Science & Engineering; Key Laboratory of Interface Science and Engineering in Advanced Materials; Ministry of Education; Taiyuan University of Technology; Shanxi 030024 China
| | - Qiang-Shuai Gu
- Academy for Advanced Interdisciplinary Studies; Southern University of Science and Technology; Shenzhen 518055 China
| | - Zhong-Liang Li
- Academy for Advanced Interdisciplinary Studies; Southern University of Science and Technology; Shenzhen 518055 China
| | - Zhuang Li
- Department of Chemistry and Shenzhen Grubbs Institute; Southern University of Science and Technology; Shenzhen 518055 China
| | - Yu-Long Guo
- Department of Chemistry and Shenzhen Grubbs Institute; Southern University of Science and Technology; Shenzhen 518055 China
| | - Zhen Guo
- College of Materials Science & Engineering; Key Laboratory of Interface Science and Engineering in Advanced Materials; Ministry of Education; Taiyuan University of Technology; Shanxi 030024 China
| | - Xin-Yuan Liu
- Department of Chemistry and Shenzhen Grubbs Institute; Southern University of Science and Technology; Shenzhen 518055 China
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27
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Wang N, Gu QS, Li ZL, Li Z, Guo YL, Guo Z, Liu XY. Direct Photocatalytic Synthesis of Medium-Sized Lactams by C-C Bond Cleavage. Angew Chem Int Ed Engl 2018; 57:14225-14229. [PMID: 30178906 DOI: 10.1002/anie.201808890] [Citation(s) in RCA: 78] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2018] [Revised: 09/03/2018] [Indexed: 11/08/2022]
Abstract
Reported is a novel two-step ring-expansion strategy for expeditious synthesis of all ring sizes of synthetically challenging (hetero)aryl-fused medium-sized lactams from readily available 5-8-membered cyclic ketones. This step-economic approach features a remote radical (hetero)aryl migration from C to N under visible-light conditions. Broad substrate scope, good functional-group tolerance, high efficiency, and mild reaction conditions make this procedure very attractive. In addition, this method also provides expedient access to 13-15-membered macrolactams upon an additional one-step manipulation. Mechanistic studies indicate that the reaction involves an amidyl radical and is promoted by acid.
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Affiliation(s)
- Na Wang
- Department of Chemistry and Shenzhen Grubbs Institute, Southern University of Science and Technology, Shenzhen, 518055, China.,College of Materials Science & Engineering, Key Laboratory of Interface Science and Engineering in Advanced Materials, Ministry of Education, Taiyuan University of Technology, Shanxi, 030024, China
| | - Qiang-Shuai Gu
- Academy for Advanced Interdisciplinary Studies, Southern University of Science and Technology, Shenzhen, 518055, China
| | - Zhong-Liang Li
- Academy for Advanced Interdisciplinary Studies, Southern University of Science and Technology, Shenzhen, 518055, China
| | - Zhuang Li
- Department of Chemistry and Shenzhen Grubbs Institute, Southern University of Science and Technology, Shenzhen, 518055, China
| | - Yu-Long Guo
- Department of Chemistry and Shenzhen Grubbs Institute, Southern University of Science and Technology, Shenzhen, 518055, China
| | - Zhen Guo
- College of Materials Science & Engineering, Key Laboratory of Interface Science and Engineering in Advanced Materials, Ministry of Education, Taiyuan University of Technology, Shanxi, 030024, China
| | - Xin-Yuan Liu
- Department of Chemistry and Shenzhen Grubbs Institute, Southern University of Science and Technology, Shenzhen, 518055, China
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28
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Stephens TC, Lawer A, French T, Unsworth WP. Iterative Assembly of Macrocyclic Lactones using Successive Ring Expansion Reactions. Chemistry 2018; 24:13947-13953. [PMID: 30011360 PMCID: PMC6334170 DOI: 10.1002/chem.201803064] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2018] [Revised: 07/12/2018] [Indexed: 12/27/2022]
Abstract
Macrocyclic lactones can be prepared from lactams and hydroxyacid derivatives via an efficient 3- or 4-atom iterative ring expansion protocol. The products can also be expanded using amino acid-based linear fragments, meaning that macrocycles with precise sequences of hydroxy- and amino acids can be assembled in high yields by "growing" them from smaller rings, using a simple procedure in which high dilution is not required. The method should significantly expedite the practical synthesis of diverse nitrogen containing macrolide frameworks.
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29
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Guney T, Wenderski TA, Boudreau MW, Tan DS. Synthesis of Benzannulated Medium-ring Lactams via a Tandem Oxidative Dearomatization-Ring Expansion Reaction. Chemistry 2018; 24:13150-13157. [PMID: 29936701 PMCID: PMC6242278 DOI: 10.1002/chem.201802880] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2018] [Indexed: 12/19/2022]
Abstract
Medium-ring natural products exhibit diverse biological activities but such scaffolds are underrepresented in probe and drug discovery efforts due to the limitations of classical macrocyclization reactions. We report herein a tandem oxidative dearomatization-ring-expanding rearomatization (ODRE) reaction that generates benzannulated medium-ring lactams directly from simple bicyclic substrates. The reaction accommodates diverse aryl substrates (haloarenes, aryl ethers, aryl amides, heterocycles) and strategic incorporation of a bridgehead alcohol generates a versatile ketone moiety in the products amenable to downstream modifications. Cheminformatic analysis indicates that these medium rings access regions of chemical space that overlap with related natural products and are distinct from synthetic drugs, setting the stage for their use in discovery screening against novel biological targets.
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Affiliation(s)
- Tezcan Guney
- Dr. T. Guney, Dr. T. A. W enderski, Prof. Dr. D. S. Tan,
Chemical Biology Program, Sloan Kettering Institute, Memorial Sloan Kettering Cancer
Center, 1275 York Avenue, Box 422, New York, New York, 10065, USA
| | - Todd A. Wenderski
- Dr. T. Guney, Dr. T. A. W enderski, Prof. Dr. D. S. Tan,
Chemical Biology Program, Sloan Kettering Institute, Memorial Sloan Kettering Cancer
Center, 1275 York Avenue, Box 422, New York, New York, 10065, USA
| | - Matthew W. Boudreau
- M. W. Boudreau, Gerstner Sloan Kettering Summer
Undergraduate Research Program, Memorial Sloan Kettering Cancer Center, 1275 York
Avenue, Box 422, New York, New York, 10065, USA
| | - Derek S. Tan
- Dr. T. Guney, Dr. T. A. W enderski, Prof. Dr. D. S. Tan,
Chemical Biology Program, Sloan Kettering Institute, Memorial Sloan Kettering Cancer
Center, 1275 York Avenue, Box 422, New York, New York, 10065, USA
- Prof. Dr. D. S. Tan, Tri-Institutional Research Program,
Memorial Sloan Kettering Cancer Center, 1275 York Avenue, Box 422, New York, New
York, 10065, USA
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30
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Wang L, Zhang Y, Li F, Hao X, Zhang HY, Zhao J. Direct C−H Trifluoromethylation of Quinoxalin-2(1H
)-ones under Transition-Metal-Free Conditions. Adv Synth Catal 2018. [DOI: 10.1002/adsc.201800863] [Citation(s) in RCA: 97] [Impact Index Per Article: 16.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Liping Wang
- School of Chemical Engineering and Technology; Hebei University of Technology; Tianjin 300130 People's Republic of China
| | - Yuecheng Zhang
- School of Chemical Engineering and Technology; Hebei University of Technology; Tianjin 300130 People's Republic of China
- National-Local Joint Engineering Laboratory for Energy Conservation of Chemical Process Integration and Resources Utilization; Hebei University of Technology; Tianjin 300130 People's Republic of China
| | - Fanfan Li
- School of Chemical Engineering and Technology; Hebei University of Technology; Tianjin 300130 People's Republic of China
| | - Xinyu Hao
- School of Chemical Engineering and Technology; Hebei University of Technology; Tianjin 300130 People's Republic of China
| | - Hong-Yu Zhang
- School of Chemical Engineering and Technology; Hebei University of Technology; Tianjin 300130 People's Republic of China
| | - Jiquan Zhao
- School of Chemical Engineering and Technology; Hebei University of Technology; Tianjin 300130 People's Republic of China
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31
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Sun DW, Jiang X, Jiang M, Lin Y, Liu JT. POCl3
-Promoted Trifluoromethylthiolation-Based Vicinal Bifunctionalization of Indoles with CF3
SO2
Na. European J Org Chem 2018. [DOI: 10.1002/ejoc.201800249] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Dong-Wei Sun
- Key Laboratory of Organofluorine Chemistry; Shanghai Institute of Organic Chemistry; University of Chinese Academy of Science; 345 Lingling Road 200032 Shanghai China
| | - Xu Jiang
- Jiangsu Key Laboratory of Biofunctional Materials; College of Chemistry and Materials Science; Nanjing Normal University; 1 Wenyuan Road 210023 Nanjing China
| | - Min Jiang
- Key Laboratory of Organofluorine Chemistry; Shanghai Institute of Organic Chemistry; University of Chinese Academy of Science; 345 Lingling Road 200032 Shanghai China
| | - Yun Lin
- Jiangsu Key Laboratory of Biofunctional Materials; College of Chemistry and Materials Science; Nanjing Normal University; 1 Wenyuan Road 210023 Nanjing China
| | - Jin-Tao Liu
- Key Laboratory of Organofluorine Chemistry; Shanghai Institute of Organic Chemistry; University of Chinese Academy of Science; 345 Lingling Road 200032 Shanghai China
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32
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Wang DJ, Chen BY, Wang YQ, Zhang XW. Ruthenium-Catalyzed Direct Transformation of Alkenyl Oximes to 5-Cyanated Isoxazolines: A Cascade Approach Based on Non-Stabilized Radical Intermediate. European J Org Chem 2018. [DOI: 10.1002/ejoc.201701651] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Dan-Jun Wang
- National Engineering Research Center for Carbohydrate Synthesis; Jiangxi Normal University; 330022 Nanchang China
| | - Bei-Yi Chen
- National Engineering Research Center for Carbohydrate Synthesis; Jiangxi Normal University; 330022 Nanchang China
| | - Yi-Qi Wang
- National Engineering Research Center for Carbohydrate Synthesis; Jiangxi Normal University; 330022 Nanchang China
| | - Xiao-Wei Zhang
- National Engineering Research Center for Carbohydrate Synthesis; Jiangxi Normal University; 330022 Nanchang China
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33
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Huber T, Wildermuth RE, Magauer T. 9-Membered Carbocycles: Strategies and Tactics for their Synthesis. Chemistry 2018; 24:12107-12120. [PMID: 29356173 PMCID: PMC6420057 DOI: 10.1002/chem.201705919] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2017] [Indexed: 11/12/2022]
Abstract
Many natural products comprising a nine-membered carbocyclic core structure exhibit interesting biological effects. However, only a minority have succumbed to their synthesis in the past. The synthesis of functionalized nine-membered carbocycles still remains a challenging goal for synthetic chemists, mainly due to their high ring strain. Different strategies to overcome the unfavorable enthalpic and entropic factors associated with their formation are highlighted in this Concept article. The presented methods are classified into two different categories: (1) the ring-expansion of smaller rings or the ring-contraction of larger rings and (2) the direct cyclization of acyclic precursors.
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Affiliation(s)
- Tatjana Huber
- Department of Chemistry and Pharmacy, Ludwig-Maximillians University Munich, Butenandtstrasse 5-13, 81377, Munich, Germany
| | - Raphael E Wildermuth
- Institute of Organic Chemistry and Center for Molecular Biosciences, University of Innsbruck, Innrain 80-82, 6020, Innsbruck, Austria
| | - Thomas Magauer
- Institute of Organic Chemistry and Center for Molecular Biosciences, University of Innsbruck, Innrain 80-82, 6020, Innsbruck, Austria
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34
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Tang X, Studer A. Alkene 1,2-Difunctionalization by Radical Alkenyl Migration. Angew Chem Int Ed Engl 2018; 57:814-817. [PMID: 29165859 PMCID: PMC5838557 DOI: 10.1002/anie.201710397] [Citation(s) in RCA: 145] [Impact Index Per Article: 24.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2017] [Revised: 11/13/2017] [Indexed: 12/17/2022]
Abstract
Transition-metal-free radical α-perfluoroalkylation with the accompanying vicinal β-alkenylation of unactivated alkenes is presented. These radical cascades proceed by means of 1,4- or 1,5-alkenyl migration by electron catalysis on readily accessed allylic alcohols. The reactions comprise a regioselective perfluoroalkyl radical addition with subsequent alkenyl migration and concomitant deprotonation to generate a ketyl radical anion that sustains the chain as a single-electron-transfer reducing reagent.
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Affiliation(s)
- Xinjun Tang
- Westfälische Wilhelms-UniversitätOrganisch-Chemisches InstitutCorrensstraße 4048149MünsterGermany
| | - Armido Studer
- Westfälische Wilhelms-UniversitätOrganisch-Chemisches InstitutCorrensstraße 4048149MünsterGermany
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35
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Affiliation(s)
- Xinjun Tang
- Westfälische Wilhelms-UniversitätOrganisch-Chemisches Institut Corrensstraße 40 48149 Münster Germany
| | - Armido Studer
- Westfälische Wilhelms-UniversitätOrganisch-Chemisches Institut Corrensstraße 40 48149 Münster Germany
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36
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Liu Y, Wu H, Guo Y, Xiao JC, Chen QY, Liu C. Trifluoromethylfluorosulfonylation of Unactivated Alkenes Using Readily Available Ag(O2
CCF2
SO2
F) and N
-Fluorobenzenesulfonimide. Angew Chem Int Ed Engl 2017; 56:15432-15435. [DOI: 10.1002/anie.201709663] [Citation(s) in RCA: 45] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2017] [Indexed: 12/19/2022]
Affiliation(s)
- Yongan Liu
- Key Laboratory of Organofluorine Chemistry; Shanghai Institute of Organic Chemistry; Chinese Academy of Sciences; 345 Lingling Road 200032 Shanghai China
| | - Hao Wu
- Key Laboratory of Organofluorine Chemistry; Shanghai Institute of Organic Chemistry; Chinese Academy of Sciences; 345 Lingling Road 200032 Shanghai China
| | - Yong Guo
- Key Laboratory of Organofluorine Chemistry; Shanghai Institute of Organic Chemistry; Chinese Academy of Sciences; 345 Lingling Road 200032 Shanghai China
| | - Ji-Chang Xiao
- Key Laboratory of Organofluorine Chemistry; Shanghai Institute of Organic Chemistry; Chinese Academy of Sciences; 345 Lingling Road 200032 Shanghai China
| | - Qing-Yun Chen
- Key Laboratory of Organofluorine Chemistry; Shanghai Institute of Organic Chemistry; Chinese Academy of Sciences; 345 Lingling Road 200032 Shanghai China
| | - Chao Liu
- Key Laboratory of Organofluorine Chemistry; Shanghai Institute of Organic Chemistry; Chinese Academy of Sciences; 345 Lingling Road 200032 Shanghai China
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37
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Liu Y, Wu H, Guo Y, Xiao JC, Chen QY, Liu C. Trifluoromethylfluorosulfonylation of Unactivated Alkenes Using Readily Available Ag(O2
CCF2
SO2
F) and N
-Fluorobenzenesulfonimide. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201709663] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Yongan Liu
- Key Laboratory of Organofluorine Chemistry; Shanghai Institute of Organic Chemistry; Chinese Academy of Sciences; 345 Lingling Road 200032 Shanghai China
| | - Hao Wu
- Key Laboratory of Organofluorine Chemistry; Shanghai Institute of Organic Chemistry; Chinese Academy of Sciences; 345 Lingling Road 200032 Shanghai China
| | - Yong Guo
- Key Laboratory of Organofluorine Chemistry; Shanghai Institute of Organic Chemistry; Chinese Academy of Sciences; 345 Lingling Road 200032 Shanghai China
| | - Ji-Chang Xiao
- Key Laboratory of Organofluorine Chemistry; Shanghai Institute of Organic Chemistry; Chinese Academy of Sciences; 345 Lingling Road 200032 Shanghai China
| | - Qing-Yun Chen
- Key Laboratory of Organofluorine Chemistry; Shanghai Institute of Organic Chemistry; Chinese Academy of Sciences; 345 Lingling Road 200032 Shanghai China
| | - Chao Liu
- Key Laboratory of Organofluorine Chemistry; Shanghai Institute of Organic Chemistry; Chinese Academy of Sciences; 345 Lingling Road 200032 Shanghai China
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38
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Gao T, Hou S, Wang F, Ma Z, Li X, Xu K, Wang C. Reversible S
0
/MgS
x
Redox Chemistry in a MgTFSI
2
/MgCl
2
/DME Electrolyte for Rechargeable Mg/S Batteries. Angew Chem Int Ed Engl 2017; 56:13526-13530. [DOI: 10.1002/anie.201708241] [Citation(s) in RCA: 109] [Impact Index Per Article: 15.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2017] [Indexed: 12/19/2022]
Affiliation(s)
- Tao Gao
- Department of Chemical and Bimolecular Engineering University of Maryland College Park MD 20740 USA
| | - Singyuk Hou
- Department of Chemical and Bimolecular Engineering University of Maryland College Park MD 20740 USA
| | - Fei Wang
- Department of Chemical and Bimolecular Engineering University of Maryland College Park MD 20740 USA
| | - Zhaohui Ma
- Department of Chemical and Bimolecular Engineering University of Maryland College Park MD 20740 USA
| | - Xiaogang Li
- Department of Chemical and Bimolecular Engineering University of Maryland College Park MD 20740 USA
| | - Kang Xu
- Electrochemistry Branch, Power and Energy Division Sensor and Electron Devices Directorate U.S. Army Research Laboratory Adelphi MD 20783 USA
| | - Chunsheng Wang
- Department of Chemical and Bimolecular Engineering University of Maryland College Park MD 20740 USA
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39
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Gao T, Hou S, Wang F, Ma Z, Li X, Xu K, Wang C. Reversible S
0
/MgS
x
Redox Chemistry in a MgTFSI
2
/MgCl
2
/DME Electrolyte for Rechargeable Mg/S Batteries. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201708241] [Citation(s) in RCA: 47] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Tao Gao
- Department of Chemical and Bimolecular Engineering University of Maryland College Park MD 20740 USA
| | - Singyuk Hou
- Department of Chemical and Bimolecular Engineering University of Maryland College Park MD 20740 USA
| | - Fei Wang
- Department of Chemical and Bimolecular Engineering University of Maryland College Park MD 20740 USA
| | - Zhaohui Ma
- Department of Chemical and Bimolecular Engineering University of Maryland College Park MD 20740 USA
| | - Xiaogang Li
- Department of Chemical and Bimolecular Engineering University of Maryland College Park MD 20740 USA
| | - Kang Xu
- Electrochemistry Branch, Power and Energy Division Sensor and Electron Devices Directorate U.S. Army Research Laboratory Adelphi MD 20783 USA
| | - Chunsheng Wang
- Department of Chemical and Bimolecular Engineering University of Maryland College Park MD 20740 USA
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Egger L, Guénée L, Bürgi T, Lacour J. Regioselective and Enantiospecific Synthesis of Dioxepines by (Cyclopentadienyl)ruthenium-Catalyzed Condensations of Diazocarbonyls and Oxetanes. Adv Synth Catal 2017. [DOI: 10.1002/adsc.201700638] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Léo Egger
- Department of Organic Chemistry; University of Geneva; Quai Ernest Ansermet 30 1211 Geneva 4 Switzerland
| | - Laure Guénée
- Laboratory of Crystallography; University of Geneva; Quai Ernest Ansermet 24 1211 Geneva 4 Switzerland
| | - Thomas Bürgi
- Department of Physical Chemistry; University of Geneva; Quai Ernest Ansermet 30 1211 Geneva 4 Switzerland
| | - Jérôme Lacour
- Department of Organic Chemistry; University of Geneva; Quai Ernest Ansermet 30 1211 Geneva 4 Switzerland
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41
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Stephens TC, Lodi M, Steer AM, Lin Y, Gill MT, Unsworth WP. Synthesis of Cyclic Peptide Mimetics by the Successive Ring Expansion of Lactams. Chemistry 2017; 23:13314-13318. [PMID: 28722215 DOI: 10.1002/chem.201703316] [Citation(s) in RCA: 44] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2017] [Indexed: 12/12/2022]
Abstract
A successive ring-expansion protocol is reported that enables the controlled insertion of natural and non-natural amino acid fragments into lactams. Amino acids can be installed into macrocycles via an operationally simple and scalable iterative procedure, without the need for high dilution. This method is expected to be of broad utility, especially for the synthesis of medicinally important cyclic peptide mimetics.
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Affiliation(s)
| | - Mahendar Lodi
- Department of Chemistry, University of York, York, YO10 5DD, UK
| | - Andrew M Steer
- Department of Chemistry, University of York, York, YO10 5DD, UK
| | - Yun Lin
- Department of Chemistry, University of York, York, YO10 5DD, UK
| | - Matthew T Gill
- Department of Chemistry, University of York, York, YO10 5DD, UK
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42
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Weng WZ, Sun JG, Li P, Zhang B. α-Quaternary Mannich Bases through Copper-Catalyzed Amination-Induced 1,2-Rearrangement of Allylic Alcohols. Chemistry 2017; 23:9752-9755. [DOI: 10.1002/chem.201702428] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2017] [Indexed: 01/28/2023]
Affiliation(s)
- Wei-Zhi Weng
- State Key Laboratory of Natural Medicines; China Pharmaceutical University; 24 Tongjia Xiang Nanjing 210009 P. R. China
| | - Jian-Guo Sun
- State Key Laboratory of Natural Medicines; China Pharmaceutical University; 24 Tongjia Xiang Nanjing 210009 P. R. China
| | - Ping Li
- State Key Laboratory of Natural Medicines; China Pharmaceutical University; 24 Tongjia Xiang Nanjing 210009 P. R. China
| | - Bo Zhang
- State Key Laboratory of Natural Medicines; China Pharmaceutical University; 24 Tongjia Xiang Nanjing 210009 P. R. China
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43
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Yin Z, Wang Z, Li W, Wu XF. Copper-Catalyzed Carbonylative Cross-Coupling of Arylboronic Acids withN-Chloroamines for the Synthesis of Aryl Amides. European J Org Chem 2017. [DOI: 10.1002/ejoc.201700352] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Zhiping Yin
- Leibniz-Institut für Katalyse e.V. an der Universität Rostock; Albert-Einstein-Straße 29a 18059 Rostock Germany
| | - Zechao Wang
- Leibniz-Institut für Katalyse e.V. an der Universität Rostock; Albert-Einstein-Straße 29a 18059 Rostock Germany
| | - Wanfang Li
- Leibniz-Institut für Katalyse e.V. an der Universität Rostock; Albert-Einstein-Straße 29a 18059 Rostock Germany
| | - Xiao-Feng Wu
- Leibniz-Institut für Katalyse e.V. an der Universität Rostock; Albert-Einstein-Straße 29a 18059 Rostock Germany
- Department of Chemistry; Zhejiang Sci-Tech University; Xiasha Campus 310018 Hangzhou People's Republic of China
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44
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Baud LG, Manning MA, Arkless HL, Stephens TC, Unsworth WP. Ring-Expansion Approach to Medium-Sized Lactams and Analysis of Their Medicinal Lead-Like Properties. Chemistry 2017; 23:2225-2230. [PMID: 27935197 DOI: 10.1002/chem.201605615] [Citation(s) in RCA: 58] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2016] [Indexed: 12/20/2022]
Abstract
Medium-sized rings are widely considered to be under-represented in biological screening libraries for lead identification in medicinal chemistry. To help address this, a library of medium-sized lactams has been generated by using a simple, scalable and versatile ring-expansion protocol. Analysis of the library by using open-access computational tool LLAMA suggested that these lactams and their derivatives have highly promising physicochemical and 3D spatial properties and thus have much potential in drug discovery.
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