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Hokamp T, Wirth T. Hypervalent Iodine(III)-Catalysed Enantioselective α-Acetoxylation of Ketones. Chemistry 2020; 26:10417-10421. [PMID: 32233006 PMCID: PMC7496773 DOI: 10.1002/chem.202000927] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2020] [Indexed: 02/06/2023]
Abstract
An enantioselective catalytic synthesis of α-acetoxylated ketones through I(I)/I(III) catalysis using a resorcinol/lactamide-based chiral iodoarene is reported. Catalyst turnover by in situ generation of the active iodine(III) derivative is achieved by oxidation with mCPBA in the presence of acetic acid. The prior transformation of ketones to easily accessible acetyl enol ethers is beneficial and yields up to 97 % with enantioselectivities up to 88 % ee are obtained using only low catalyst loadings of only 5 mol % under mild reaction conditions.
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Affiliation(s)
- Tobias Hokamp
- School of ChemistryCardiff UniversityMain Building, Park PlaceCardiffCF10 3ATUK
| | - Thomas Wirth
- School of ChemistryCardiff UniversityMain Building, Park PlaceCardiffCF10 3ATUK
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2
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Abstract
Asymmetric organocatalytic oxidations have been witnessed to an impressive development in the last years thanks to the establishment of important chiral hypervalent iodines(III/V). Many different approaches involving both stoichiometric and catalytic versions have provided a fundamental advance in this area within asymmetric synthesis. The easily handing, nontoxic, mild, environmentally friendly (green oxidants), and high stability that are features of these reagents have been applied to many reactions and also have allowed exploring further unprecedented enantioselective transformations. The intention of the present review is thus to highlight as a whole the many approaches utilized up to date to prepare chiral iodines(III/V), as well as their reactivity in a comprehensive manner.
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Affiliation(s)
- Alejandro Parra
- Facultad de Ciencias, Departamento de Química Orgánica, Institute for Advance Research in Chemical Sciences (IAdChem) Universidad Autónoma de Madrid , 28049 Madrid , Spain
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3
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Butt SE, Das M, Sotiropoulos JM, Moran WJ. Computationally Assisted Mechanistic Investigation into Hypervalent Iodine Catalysis: Cyclization of N-Allylbenzamide. J Org Chem 2019; 84:15605-15613. [DOI: 10.1021/acs.joc.9b02623] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- Smaher E. Butt
- Department of Chemistry, University of Huddersfield, Queensgate, Huddersfield HD1 3DH, U.K
| | - Mirdyul Das
- Department of Chemistry, University of Huddersfield, Queensgate, Huddersfield HD1 3DH, U.K
| | - Jean-Marc Sotiropoulos
- Université de Pau et des Pays de l’Adour, IPREM (CNRS-UMR 5254), Technopole Hélioparc, 2 Avenue du Président Pierre Angot, 64053 Pau Cedex 09, France
| | - Wesley J. Moran
- Department of Chemistry, University of Huddersfield, Queensgate, Huddersfield HD1 3DH, U.K
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Lee JH, Choi S, Hong KB. Alkene Difunctionalization Using Hypervalent Iodine Reagents: Progress and Developments in the Past Ten Years. Molecules 2019; 24:molecules24142634. [PMID: 31331092 PMCID: PMC6680546 DOI: 10.3390/molecules24142634] [Citation(s) in RCA: 51] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2019] [Revised: 07/13/2019] [Accepted: 07/18/2019] [Indexed: 11/16/2022] Open
Abstract
Hypervalent iodine reagents are of considerable relevance in organic chemistry as they can provide a complementary reaction strategy to the use of traditional transition metal chemistry. Over the past two decades, there have been an increasing number of applications including stoichiometric oxidation and catalytic asymmetric variations. This review outlines the main advances in the past 10 years in regard to alkene heterofunctionalization chemistry using achiral and chiral hypervalent iodine reagents and catalysts.
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Affiliation(s)
- Ji Hoon Lee
- New Drug Development Center (NDDC), Daegu-Gyeongbuk Medical Innovation Foundation (DGMIF), 80 Cheombok-ro, Dong-gu, Daegu 701-310, Korea
| | - Sungwook Choi
- Department of New Drug Discovery and Development, Chungnam National University, Daejon 305-764, Korea.
| | - Ki Bum Hong
- New Drug Development Center (NDDC), Daegu-Gyeongbuk Medical Innovation Foundation (DGMIF), 80 Cheombok-ro, Dong-gu, Daegu 701-310, Korea.
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Hokamp T, Wirth T. Structurally Defined α-Tetralol-Based Chiral Hypervalent Iodine Reagents. J Org Chem 2019; 84:8674-8682. [DOI: 10.1021/acs.joc.9b01315] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- Tobias Hokamp
- School of Chemistry, Cardiff University, Main Building,
Park Place, Cardiff CF10 3AT, U.K
| | - Thomas Wirth
- School of Chemistry, Cardiff University, Main Building,
Park Place, Cardiff CF10 3AT, U.K
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Flores A, Cots E, Bergès J, Muñiz K. Enantioselective Iodine(I/III) Catalysis in Organic Synthesis. Adv Synth Catal 2018. [DOI: 10.1002/adsc.201800521] [Citation(s) in RCA: 104] [Impact Index Per Article: 17.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- Andrea Flores
- Institute of Chemical Research of Catalonia (ICIQ)The Barcelona Institute of Science Av. Països Catalans 16 43007 Tarragona Spain
| | - Eric Cots
- Institute of Chemical Research of Catalonia (ICIQ)The Barcelona Institute of Science Av. Països Catalans 16 43007 Tarragona Spain
| | - Julien Bergès
- Institute of Chemical Research of Catalonia (ICIQ)The Barcelona Institute of Science Av. Països Catalans 16 43007 Tarragona Spain
| | - Kilian Muñiz
- Institute of Chemical Research of Catalonia (ICIQ)The Barcelona Institute of Science Av. Països Catalans 16 43007 Tarragona Spain
- ICREA Passeig Lluís Companys 23 08010 Barcelona Spain
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Hokamp T, Mollari L, Wilkins LC, Melen RL, Wirth T. Alternative Strategies with Iodine: Fast Access to Previously Inaccessible Iodine(III) Compounds. Angew Chem Int Ed Engl 2018; 57:8306-8309. [DOI: 10.1002/anie.201804642] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2018] [Revised: 05/08/2018] [Indexed: 11/07/2022]
Affiliation(s)
- Tobias Hokamp
- School of ChemistryCardiff University Main Building, Park Place Cardiff CF10 3AT UK
| | - Leonardo Mollari
- School of ChemistryCardiff University Main Building, Park Place Cardiff CF10 3AT UK
| | - Lewis C. Wilkins
- School of ChemistryCardiff University Main Building, Park Place Cardiff CF10 3AT UK
| | - Rebecca L. Melen
- School of ChemistryCardiff University Main Building, Park Place Cardiff CF10 3AT UK
| | - Thomas Wirth
- School of ChemistryCardiff University Main Building, Park Place Cardiff CF10 3AT UK
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Hokamp T, Mollari L, Wilkins LC, Melen RL, Wirth T. Alternative Strategien mit Iod: schneller Zugang zu bisher unzugänglichen Iod(III)‐Verbindungen. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201804642] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Tobias Hokamp
- School of ChemistryCardiff University Main Building, Park Place Cardiff CF10 3AT Großbritannien
| | - Leonardo Mollari
- School of ChemistryCardiff University Main Building, Park Place Cardiff CF10 3AT Großbritannien
| | - Lewis C. Wilkins
- School of ChemistryCardiff University Main Building, Park Place Cardiff CF10 3AT Großbritannien
| | - Rebecca L. Melen
- School of ChemistryCardiff University Main Building, Park Place Cardiff CF10 3AT Großbritannien
| | - Thomas Wirth
- School of ChemistryCardiff University Main Building, Park Place Cardiff CF10 3AT Großbritannien
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Malmedy F, Wirth T. Cyclization of Malonate Derivatives with Iodine(III) Reagents. European J Org Chem 2017. [DOI: 10.1002/ejoc.201601587] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Florence Malmedy
- School of Chemistry; Cardiff University; Park Place, Main Building CF10 3AT Cardiff UK
| | - Thomas Wirth
- School of Chemistry; Cardiff University; Park Place, Main Building CF10 3AT Cardiff UK
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11
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Malmedy F, Wirth T. Stereoselective Ketone Rearrangements with Hypervalent Iodine Reagents. Chemistry 2016; 22:16072-16077. [DOI: 10.1002/chem.201603022] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2016] [Indexed: 12/11/2022]
Affiliation(s)
- Florence Malmedy
- School of Chemistry; Cardiff University; Park Place Main Building Cardiff CF10 3AT UK
| | - Thomas Wirth
- School of Chemistry; Cardiff University; Park Place Main Building Cardiff CF10 3AT UK
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12
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Abstract
The preparation, structure, and chemistry of hypervalent iodine compounds are reviewed with emphasis on their synthetic application. Compounds of iodine possess reactivity similar to that of transition metals, but have the advantage of environmental sustainability and efficient utilization of natural resources. These compounds are widely used in organic synthesis as selective oxidants and environmentally friendly reagents. Synthetic uses of hypervalent iodine reagents in halogenation reactions, various oxidations, rearrangements, aminations, C-C bond-forming reactions, and transition metal-catalyzed reactions are summarized and discussed. Recent discovery of hypervalent catalytic systems and recyclable reagents, and the development of new enantioselective reactions using chiral hypervalent iodine compounds represent a particularly important achievement in the field of hypervalent iodine chemistry. One of the goals of this Review is to attract the attention of the scientific community as to the benefits of using hypervalent iodine compounds as an environmentally sustainable alternative to heavy metals.
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Affiliation(s)
- Akira Yoshimura
- Department of Chemistry and Biochemistry, University of Minnesota Duluth , Duluth, Minnesota 55812, United States
| | - Viktor V Zhdankin
- Department of Chemistry and Biochemistry, University of Minnesota Duluth , Duluth, Minnesota 55812, United States
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Haubenreisser S, Wöste TH, Martínez C, Ishihara K, Muñiz K. Structurally Defined Molecular Hypervalent Iodine Catalysts for Intermolecular Enantioselective Reactions. Angew Chem Int Ed Engl 2016; 55:413-7. [PMID: 26596513 PMCID: PMC4832830 DOI: 10.1002/anie.201507180] [Citation(s) in RCA: 129] [Impact Index Per Article: 16.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2015] [Revised: 10/16/2015] [Indexed: 01/09/2023]
Abstract
Molecular structures of the most prominent chiral non-racemic hypervalent iodine(III) reagents to date have been elucidated for the first time. The formation of a chirally induced supramolecular scaffold based on a selective hydrogen-bonding arrangement provides an explanation for the consistently high asymmetric induction with these reagents. As an exploratory example, their scope as chiral catalysts was extended to the enantioselective dioxygenation of alkenes. A series of terminal styrenes are converted into the corresponding vicinal diacetoxylation products under mild conditions and provide the proof of principle for a truly intermolecular asymmetric alkene oxidation under iodine(I/III) catalysis.
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Affiliation(s)
- Stefan Haubenreisser
- Institute of Chemical Research of Catalonia (ICIQ), The Barcelona Institute of Science and Technology, Av. Països Catalans 16, 43007 Tarragona (Spain)
| | - Thorsten H Wöste
- Institute of Chemical Research of Catalonia (ICIQ), The Barcelona Institute of Science and Technology, Av. Països Catalans 16, 43007 Tarragona (Spain)
| | - Claudio Martínez
- Institute of Chemical Research of Catalonia (ICIQ), The Barcelona Institute of Science and Technology, Av. Països Catalans 16, 43007 Tarragona (Spain)
| | - Kazuaki Ishihara
- Graduate School of Engineering, Nagoya University, B2-3(611), Furo-cho, Chikusa, Nagoya 464-8603 (Japan)
| | - Kilian Muñiz
- Institute of Chemical Research of Catalonia (ICIQ), The Barcelona Institute of Science and Technology, Av. Països Catalans 16, 43007 Tarragona (Spain).
- Catalan Institution for Research and Advanced Studies (ICREA), Pg. Lluís Companys 23, 08010 Barcelona (Spain).
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Fujita M. Optically Active Hypervalent Organoiodine(III)-induced Asymmetric Oxidation of Alkene. J SYN ORG CHEM JPN 2016. [DOI: 10.5059/yukigoseikyokaishi.74.233] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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15
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Haubenreisser S, Wöste TH, Martínez C, Ishihara K, Muñiz K. Strukturell definierte molekulare hypervalente Iod-Katalysatoren für intermolekulare enantioselektive Reaktionen. Angew Chem Int Ed Engl 2015. [DOI: 10.1002/ange.201507180] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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16
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Srinivas BTV, Rawat VS, Sreedhar B. Iron-Catalyzed Dioxygenation of Alkenes and Terminal Alkynes by using (Diacetoxyiodo)benzene as Oxidant. Adv Synth Catal 2015. [DOI: 10.1002/adsc.201500681] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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17
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Asymmetric Synthesis with Hypervalent Iodine Reagents. HYPERVALENT IODINE CHEMISTRY 2015; 373:243-61. [DOI: 10.1007/128_2015_639] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
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18
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PhI(OAc)2 and BF3–OEt2 mediated heterocyclization: metal-free synthesis of pyrimidine-annulated oxazolines. Tetrahedron Lett 2014. [DOI: 10.1016/j.tetlet.2014.08.051] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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Romero RM, Wöste TH, Muñiz K. Vicinal difunctionalization of alkenes with iodine(III) reagents and catalysts. Chem Asian J 2014; 9:972-83. [PMID: 24591421 DOI: 10.1002/asia.201301637] [Citation(s) in RCA: 243] [Impact Index Per Article: 24.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2013] [Indexed: 12/15/2022]
Abstract
Hypervalent iodine(III) reagents have been known for over a century, and their reaction profile is still actively investigated. Recent years have seen impressive improvements in the area of alkene difunctionalization reactions, where new methodologies have become available. Especially chiral non-racemic hypervalent iodine(III) reagents and catalysts have emerged as versatile tools for the realization of important enantioselective transformations.
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Affiliation(s)
- R Martín Romero
- Institute of Chemical Research of Catalonia (ICIQ), Av. Països Catalans 16, E-43007 Tarragona (Spain), Fax: (+34) 977-920-224
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Dong DQ, Hao SH, Wang ZL, Chen C. Hypervalent iodine: a powerful electrophile for asymmetric α-functionalization of carbonyl compounds. Org Biomol Chem 2014; 12:4278-89. [DOI: 10.1039/c4ob00318g] [Citation(s) in RCA: 99] [Impact Index Per Article: 9.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
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21
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Parra A, Reboredo S. Chiral Hypervalent Iodine Reagents: Synthesis and Reactivity. Chemistry 2013; 19:17244-60. [DOI: 10.1002/chem.201302220] [Citation(s) in RCA: 150] [Impact Index Per Article: 13.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Affiliation(s)
- Alejandro Parra
- Departamento de Química Orgánica (Módulo‐1), Facultad de Ciencias, Universidad Autónoma de Madrid, Cantoblanco, 28049 Madrid (Spain)
| | - Silvia Reboredo
- Departamento de Química Orgánica I, Facultad de Ciencias Químicas, Universidad Complutense de Madrid, Ciudad Universitaria S/N, 28040 Madrid (Spain)
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Shimogaki M, Fujita M, Sugimura T. Enantioselective Oxidation of Alkenylbenzoates Catalyzed by Chiral Hypervalent Iodine(III) To Yield 4-Hydroxyisochroman-1-ones. European J Org Chem 2013. [DOI: 10.1002/ejoc.201300959] [Citation(s) in RCA: 72] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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Farid U, Malmedy F, Claveau R, Albers L, Wirth T. Stereoselektive Umlagerungen mit chiralen hypervalenten Iodreagentien. Angew Chem Int Ed Engl 2013. [DOI: 10.1002/ange.201302358] [Citation(s) in RCA: 55] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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25
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Farid U, Malmedy F, Claveau R, Albers L, Wirth T. Stereoselective Rearrangements with Chiral Hypervalent Iodine Reagents. Angew Chem Int Ed Engl 2013; 52:7018-22. [DOI: 10.1002/anie.201302358] [Citation(s) in RCA: 141] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2013] [Indexed: 12/29/2022]
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26
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Fujita M, Mori K, Shimogaki M, Sugimura T. Total synthesis of (12R)- and (12S)-12-hydroxymonocerins: stereoselective oxylactonization using a chiral hypervalent iodine(iii) species. RSC Adv 2013. [DOI: 10.1039/c3ra43230k] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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Souto JA, González Y, Iglesias A, Zian D, Lishchynskyi A, Muñiz K. Iodine(III)-Promoted Intermolecular Diamination of Alkenes. Chem Asian J 2012; 7:1103-11. [DOI: 10.1002/asia.201101025] [Citation(s) in RCA: 82] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2011] [Indexed: 12/30/2022]
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Fujita M, Mori K, Shimogaki M, Sugimura T. Asymmetric Synthesis of 4,8-Dihydroxyisochroman-1-one Polyketide Metabolites Using Chiral Hypervalent Iodine(III). Org Lett 2012; 14:1294-7. [DOI: 10.1021/ol300185u] [Citation(s) in RCA: 82] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Affiliation(s)
- Morifumi Fujita
- Graduate School of Material Science, University of Hyogo, Kohto, Kamigori, Hyogo 678-1297, Japan
| | - Kazuhiro Mori
- Graduate School of Material Science, University of Hyogo, Kohto, Kamigori, Hyogo 678-1297, Japan
| | - Mio Shimogaki
- Graduate School of Material Science, University of Hyogo, Kohto, Kamigori, Hyogo 678-1297, Japan
| | - Takashi Sugimura
- Graduate School of Material Science, University of Hyogo, Kohto, Kamigori, Hyogo 678-1297, Japan
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30
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Yu J, Cui J, Hou XS, Liu SS, Gao WC, Jiang S, Tian J, Zhang C. Enantioselective α-tosyloxylation of ketones catalyzed by spirobiindane scaffold-based chiral iodoarenes. ACTA ACUST UNITED AC 2011. [DOI: 10.1016/j.tetasy.2011.12.003] [Citation(s) in RCA: 54] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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31
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Zhong W, Yang J, Meng X, Li Z. BF3·OEt2-Promoted Diastereoselective Diacetoxylation of Alkenes by PhI(OAc)2. J Org Chem 2011; 76:9997-10004. [DOI: 10.1021/jo201752y] [Citation(s) in RCA: 67] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Affiliation(s)
- Wenhe Zhong
- The State Key Laboratory of Natural and Biomimetic
Drugs, Department of Chemical Biology, School of Pharmaceutical Sciences, Peking University, Beijing 100191, P. R. China
| | - Jun Yang
- The State Key Laboratory of Natural and Biomimetic
Drugs, Department of Chemical Biology, School of Pharmaceutical Sciences, Peking University, Beijing 100191, P. R. China
| | - Xiangbao Meng
- The State Key Laboratory of Natural and Biomimetic
Drugs, Department of Chemical Biology, School of Pharmaceutical Sciences, Peking University, Beijing 100191, P. R. China
| | - Zhongjun Li
- The State Key Laboratory of Natural and Biomimetic
Drugs, Department of Chemical Biology, School of Pharmaceutical Sciences, Peking University, Beijing 100191, P. R. China
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32
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Liang H, Ciufolini MA. Chirale hypervalente Iodreagentien in asymmetrischen Reaktionen. Angew Chem Int Ed Engl 2011. [DOI: 10.1002/ange.201106127] [Citation(s) in RCA: 49] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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33
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Liang H, Ciufolini MA. Chiral Hypervalent Iodine Reagents in Asymmetric Reactions. Angew Chem Int Ed Engl 2011; 50:11849-51. [DOI: 10.1002/anie.201106127] [Citation(s) in RCA: 152] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2011] [Indexed: 01/12/2023]
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34
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Röben C, Souto JA, González Y, Lishchynskyi A, Muñiz K. Enantioselektive metallfreie Diaminierung von Styrolen. Angew Chem Int Ed Engl 2011. [DOI: 10.1002/ange.201103077] [Citation(s) in RCA: 83] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
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35
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Enantioselective Metal-Free Diamination of Styrenes. Angew Chem Int Ed Engl 2011; 50:9478-82. [DOI: 10.1002/anie.201103077] [Citation(s) in RCA: 249] [Impact Index Per Article: 19.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2011] [Indexed: 12/20/2022]
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36
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Fujita M, Wakita M, Sugimura T. Enantioselective Prévost and Woodward reactions using chiral hypervalent iodine(iii): switchover of stereochemical course of an optically active 1,3-dioxolan-2-yl cation. Chem Commun (Camb) 2011; 47:3983-5. [DOI: 10.1039/c1cc10129c] [Citation(s) in RCA: 124] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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37
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Fujita M, Yoshida Y, Miyata K, Wakisaka A, Sugimura T. Enantiodifferentiating endo-Selective Oxylactonization of ortho-Alk-1-enylbenzoate with a Lactate-Derived Aryl-λ3-Iodane. Angew Chem Int Ed Engl 2010. [DOI: 10.1002/ange.201003503] [Citation(s) in RCA: 64] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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38
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Fujita M, Yoshida Y, Miyata K, Wakisaka A, Sugimura T. Enantiodifferentiating endo-Selective Oxylactonization of ortho-Alk-1-enylbenzoate with a Lactate-Derived Aryl-λ3-Iodane. Angew Chem Int Ed Engl 2010; 49:7068-71. [DOI: 10.1002/anie.201003503] [Citation(s) in RCA: 171] [Impact Index Per Article: 12.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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