1
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Zhu S, Ye Z, Chen MJ, Wang L, Wang YZ, Zhang KN, Li WB, Ding HM, Li Z, Zhang J. Mechanistic study on the side arm effect in a palladium/Xu-Phos-catalyzed enantioselective alkoxyalkenylation of γ-hydroxyalkenes. Nat Commun 2023; 14:7611. [PMID: 37993423 PMCID: PMC10665319 DOI: 10.1038/s41467-023-43202-5] [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: 04/24/2023] [Accepted: 11/03/2023] [Indexed: 11/24/2023] Open
Abstract
Recently, the asymmetric bifunctionalization of alkenes has received much attention. However, the development of enantioselective alkoxyalkenylation has posed a considerable challenge and has lagged largely behind. Herein, we report a new palladium-catalyzed enantioselective alkoxyalkenylation reaction, using a range of primary, secondary, and tertiary γ-hydroxy-alkenes with alkenyl halides. By employing newly identified Xu-Phos (Xu8 and Xu9) with a suitable side-arm adjacent to the PCy2 motif, a series of allyl-substituted tetrahydrofurans were obtained in good yields with up to 95% ee. Besides (E)-alkenyl halides, (Z)-alkenyl halide was also examined and provided the corresponding (Z)-product as a single diastereomer, supporting a stereospecific oxidative addition and reductive elimination step. Moreover, deuterium labeling and VCD experiments were employed to determine a cis-oxypalladation mechanism. DFT calculations helped us gain deeper insight into the side-arm effect on the chiral ligand. Finally, the practicability of this method is further demonstrated through a gram-scale synthesis and versatile transformations of the products.
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Affiliation(s)
- Shuai Zhu
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, School of Chemistry and Molecular Engineering, East China Normal University, 3663 N. Zhongshan Road, Shanghai, 200062, P.R. China
| | - Zihao Ye
- Department of Chemistry, Fudan University, 2005 Songhu Road, Shanghai, 200438, P.R. China
| | - Ming-Jie Chen
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, School of Chemistry and Molecular Engineering, East China Normal University, 3663 N. Zhongshan Road, Shanghai, 200062, P.R. China
| | - Lei Wang
- School of Chemistry & Chemical Engineering, Yangzhou University, Yangzhou, 225002, P.R. China
| | - Yu-Zhuo Wang
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, School of Chemistry and Molecular Engineering, East China Normal University, 3663 N. Zhongshan Road, Shanghai, 200062, P.R. China
| | - Ke-Nan Zhang
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, School of Chemistry and Molecular Engineering, East China Normal University, 3663 N. Zhongshan Road, Shanghai, 200062, P.R. China
| | - Wen-Bo Li
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, School of Chemistry and Molecular Engineering, East China Normal University, 3663 N. Zhongshan Road, Shanghai, 200062, P.R. China
| | - Han-Ming Ding
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, School of Chemistry and Molecular Engineering, East China Normal University, 3663 N. Zhongshan Road, Shanghai, 200062, P.R. China
| | - Zhiming Li
- Department of Chemistry, Fudan University, 2005 Songhu Road, Shanghai, 200438, P.R. China.
| | - Junliang Zhang
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, School of Chemistry and Molecular Engineering, East China Normal University, 3663 N. Zhongshan Road, Shanghai, 200062, P.R. China.
- Department of Chemistry, Fudan University, 2005 Songhu Road, Shanghai, 200438, P.R. China.
- School of Chemistry & Chemical Engineering, Yangzhou University, Yangzhou, 225002, P.R. China.
- School of Chemistry & Chemical Engineering, Henan Normal University, Xinxiang, 453007, Henan, P.R. China.
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2
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Paulus F, Stein C, Heusel C, Stoffels TJ, Daniliuc CG, Glorius F. Three-Component Photochemical 1,2,5-Trifunctionalizations of Alkenes toward Densely Functionalized Lynchpins. J Am Chem Soc 2023; 145:23814-23823. [PMID: 37852246 DOI: 10.1021/jacs.3c08898] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2023]
Abstract
Radical remote 1,n-difunctionalization reactions (n > 2) of alkenes are powerful tools to efficiently introduce functional groups with selected distances into target molecules. Among these reactions, 1,5-difunctionalizations are an important subclass, leading to sought-after scaffolds, but typically suffer from tailored starting materials and strict limitations for the formed functional group in 2-position. Seeking to address these issues and to make radical 1,5-difunctionalizations of alkenes more applicable, we report a novel three-component 1,2,5-trifunctionalization reaction between imine-based bifunctional reagents and two distinct alkenes, driven by visible light energy transfer-catalysis. Key to achieving this selective one-step installation of three different functional groups via the choreographed formation of four bonds was the utilization of a 1,2-boron shift and the rigorous capitalization of radical polarities and stabilities. Thorough mechanistic studies were carried out, and the synthetic utility of the obtained products was demonstrated by various downstream modifications. Notably, in addition to the functionalization of individual functional groups, their interplay gave rise to a unique array of cyclic products.
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Affiliation(s)
- Fritz Paulus
- Organisch-Chemisches Institut, Westfälische Wilhelms-Universität Münster, Corrensstraße 36, 48149 Münster, Germany
| | - Colin Stein
- Organisch-Chemisches Institut, Westfälische Wilhelms-Universität Münster, Corrensstraße 36, 48149 Münster, Germany
| | - Corinna Heusel
- Organisch-Chemisches Institut, Westfälische Wilhelms-Universität Münster, Corrensstraße 36, 48149 Münster, Germany
| | - Tobias J Stoffels
- Organisch-Chemisches Institut, Westfälische Wilhelms-Universität Münster, Corrensstraße 36, 48149 Münster, Germany
| | - Constantin G Daniliuc
- Organisch-Chemisches Institut, Westfälische Wilhelms-Universität Münster, Corrensstraße 36, 48149 Münster, Germany
| | - Frank Glorius
- Organisch-Chemisches Institut, Westfälische Wilhelms-Universität Münster, Corrensstraße 36, 48149 Münster, Germany
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3
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Minami R, Kasai T, Murata K, Fuwa H. Total Synthesis of (+)-Muricatetrocin B via a Late-Stage Co-Catalyzed Hartung-Mukaiyama Cyclization. Org Lett 2023; 25:5745-5749. [PMID: 37530592 DOI: 10.1021/acs.orglett.3c01932] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/03/2023]
Abstract
Convergent total synthesis of (+)-muricatetrocin B, a tetrahydrofuran-containing acetogenin with potent and selective cytotoxicity against the HT-29 human colon adenocarcinoma cell line, was achieved in 13 steps. Our synthesis is highlighted by a late-stage sequential olefin cross-metathesis/Hartung-Mukaiyama cyclization for convergent assembly of the 2,5-trans-substituted tetrahydrofuran ring.
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Affiliation(s)
- Riko Minami
- Department of Applied Chemistry, Faculty of Science and Engineering, Chuo University, 1-13-27 Kasuga, Bunkyo-ku, Tokyo 112-8551, Japan
| | - Tsubasa Kasai
- Department of Applied Chemistry, Faculty of Science and Engineering, Chuo University, 1-13-27 Kasuga, Bunkyo-ku, Tokyo 112-8551, Japan
| | - Keisuke Murata
- Department of Applied Chemistry, Faculty of Science and Engineering, Chuo University, 1-13-27 Kasuga, Bunkyo-ku, Tokyo 112-8551, Japan
| | - Haruhiko Fuwa
- Department of Applied Chemistry, Faculty of Science and Engineering, Chuo University, 1-13-27 Kasuga, Bunkyo-ku, Tokyo 112-8551, Japan
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4
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Tan G, Paulus F, Rentería-Gómez Á, Lalisse RF, Daniliuc CG, Gutierrez O, Glorius F. Highly Selective Radical Relay 1,4-Oxyimination of Two Electronically Differentiated Olefins. J Am Chem Soc 2022; 144:21664-21673. [PMID: 36383483 PMCID: PMC10242452 DOI: 10.1021/jacs.2c09244] [Citation(s) in RCA: 21] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Radical addition reactions of olefins have emerged as an attractive tool for the rapid assembly of complex structures, and have plentiful applications in organic synthesis, however, such reactions are often limited to polymerization or 1,2-difunctionalization. Herein, we disclose an unprecedented radical relay 1,4-oxyimination of two electronically differentiated olefins with a class of bifunctional oxime carbonate reagents via an energy transfer strategy. The protocol is highly chemo- and regioselective, and three different chemical bonds (C-O, C-C, and C-N bonds) were formed in a single operation in an orchestrated manner. Notably, this reaction provides rapid access to a large variety of structurally diverse 1,4-oxyimination products, and the obtained products could be easily converted into valuable biologically relevant δ-hydroxyl-α-amino acids. With a combination of experimental and theoretical methods, the mechanism for this 1,4-oxyimination reaction has been investigated. Theoretical calculations reveal that a radical chain mechanism might operate in the reaction.
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Affiliation(s)
- Guangying Tan
- Westfälische Wilhelms-Universität Münster, Organisch-Chemisches Institut, Corrensstraße 36, Münster 48149, Germany
| | - Fritz Paulus
- Westfälische Wilhelms-Universität Münster, Organisch-Chemisches Institut, Corrensstraße 36, Münster 48149, Germany
| | - Ángel Rentería-Gómez
- Department of Chemistry, Texas A&M University, College Station, Texas 77843, United States
| | - Remy F Lalisse
- Department of Chemistry, Texas A&M University, College Station, Texas 77843, United States
| | - Constantin G Daniliuc
- Westfälische Wilhelms-Universität Münster, Organisch-Chemisches Institut, Corrensstraße 36, Münster 48149, Germany
| | - Osvaldo Gutierrez
- Department of Chemistry, Texas A&M University, College Station, Texas 77843, United States
| | - Frank Glorius
- Westfälische Wilhelms-Universität Münster, Organisch-Chemisches Institut, Corrensstraße 36, Münster 48149, Germany
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5
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Xu H, Pi C, Wu Y, Cui X. Three-component synthesis of α-indole-β-sulfonyl tetrahydrofurans under metal-free conditions. NEW J CHEM 2022. [DOI: 10.1039/d1nj05749a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
An efficient multi-component reaction has been developed for the synthesis of 2,3-disubstituted tetrahydrofurans in a “one pot” manner, starting from readily available 2-arylindoles, arylsulfonyl azides, and tetrahydrofuran under simple and easily operated reaction conditions.
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Affiliation(s)
- Haopeng Xu
- College of Chemistry and Green Catalysis Center, Henan Key Laboratory of Chemical Biology and Organic Chemistry, Key Laboratory of Applied Chemistry of Henan Universities, Zhengzhou University, Zhengzhou 450052, People's Republic of China
| | - Chao Pi
- College of Chemistry and Green Catalysis Center, Henan Key Laboratory of Chemical Biology and Organic Chemistry, Key Laboratory of Applied Chemistry of Henan Universities, Zhengzhou University, Zhengzhou 450052, People's Republic of China
| | - Yangjie Wu
- College of Chemistry and Green Catalysis Center, Henan Key Laboratory of Chemical Biology and Organic Chemistry, Key Laboratory of Applied Chemistry of Henan Universities, Zhengzhou University, Zhengzhou 450052, People's Republic of China
| | - Xiuling Cui
- College of Chemistry and Green Catalysis Center, Henan Key Laboratory of Chemical Biology and Organic Chemistry, Key Laboratory of Applied Chemistry of Henan Universities, Zhengzhou University, Zhengzhou 450052, People's Republic of China
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6
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Li T, Hammond GB, Xu B. Cobalt-Catalyzed Aerobic Oxidative Cleavage of Alkyl Aldehydes: Synthesis of Ketones, Esters, Amides, and α-Ketoamides. Chemistry 2021; 27:9737-9741. [PMID: 34010489 DOI: 10.1002/chem.202101035] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2021] [Indexed: 12/17/2022]
Abstract
A widely applicable approach was developed to synthesize ketones, esters, amides via the oxidative C-C bond cleavage of readily available alkyl aldehydes. Green and abundant molecular oxygen (O2 ) was used as the oxidant, and base metals (cobalt and copper) were used as the catalysts. This strategy can be extended to the one-pot synthesis of ketones from primary alcohols and α-ketoamides from aldehydes.
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Affiliation(s)
- Tingting Li
- College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, Shanghai, 201620, P. R. China
| | - Gerald B Hammond
- Department of Chemistry, University of Louisville, Louisville, KY 40292, USA
| | - Bo Xu
- College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, Shanghai, 201620, P. R. China
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7
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Ohta M, Kato S, Sugai T, Fuwa H. Cobalt-Catalyzed Hartung-Mukaiyama Cyclization of γ-Hydroxy Olefins: Stereocontrolled Synthesis of the Tetrahydrofuran Moiety of Amphidinolide N. J Org Chem 2021; 86:5584-5615. [PMID: 33769047 DOI: 10.1021/acs.joc.1c00085] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Abstract
Cobalt-catalyzed Mukaiyama-type cyclization of γ-hydroxy olefins is known as an atom- and step-economical means for stereoselective synthesis of 2,5-trans-substituted tetrahydrofuran derivatives. In this study, we investigated the synthesis of a series of 2,5-substituted tetrahydrofuran derivatives by means of a cobalt-catalyzed Hartung-Mukaiyama cyclization. The stereochemical consequence of the reaction was found to be largely dependent on the substitution pattern and relative configuration of γ-hydroxy olefins. 2,5-cis-Substituted tetrahydrofuran derivatives could be obtained diastereoselectively from appropriately substituted γ-hydroxy olefins. Additionally, relatively bulky olefin substituents and unprotected hydroxy groups at non-interfering positions (e.g., α and δ) were well tolerated in the reaction. Finally, the synthetic versatility of the Hartung-Mukaiyama cyclization was demonstrated through a stereocontrolled synthesis of the tetrahydrofuran moiety of amphidinolide N, a potent cytotoxic macrolide of marine origin. This study expands the capacity of Mukaiyama-type cyclization in that it can be used in convergent assembly of complex tetrahydrofuran motifs from internal olefins.
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Affiliation(s)
- Masaki Ohta
- Department of Applied Chemistry, Faculty of Science and Engineering, Chuo University, 1-13-27 Kasuga, Bunkyo-ku, Tokyo 112-8551, Japan
| | - Shota Kato
- Department of Applied Chemistry, Faculty of Science and Engineering, Chuo University, 1-13-27 Kasuga, Bunkyo-ku, Tokyo 112-8551, Japan
| | - Tomoya Sugai
- Department of Applied Chemistry, Faculty of Science and Engineering, Chuo University, 1-13-27 Kasuga, Bunkyo-ku, Tokyo 112-8551, Japan
| | - Haruhiko Fuwa
- Department of Applied Chemistry, Faculty of Science and Engineering, Chuo University, 1-13-27 Kasuga, Bunkyo-ku, Tokyo 112-8551, Japan
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8
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Kato S, Mizukami D, Sugai T, Tsuda M, Fuwa H. Total synthesis and complete configurational assignment of amphirionin-2. Chem Sci 2020; 12:872-879. [PMID: 34163854 PMCID: PMC8179035 DOI: 10.1039/d0sc06021f] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
Amphirionin-2 is a linear polyketide metabolite that exhibits potent and selective cytotoxic activity against certain human cancer cell lines. We disclose herein the first total synthesis of amphirionin-2 and determination of its absolute configuration. Our synthesis featured an extensive use of cobalt-catalyzed Mukaiyama-type cyclization of γ-hydroxy olefins for stereoselective formation of all the tetrahydrofuran rings found in the natural product, and a late-stage Stille-type coupling for convergent assembly of the entire carbon backbone. Four candidate diastereomers of amphirionin-2 were synthesized in a unified, convergent manner, and their spectroscopic/chromatographic properties were compared with those of the authentic material. The present study culminated in the reassignment of the C5/C7 relative configuration, assignment of the C12/C18 relative configuration, and determination of the absolute configuration of amphirionin-2. An extensive application of cobalt-catalyzed Mukaiyama-type cyclization of γ-hydroxy olefins and a late-stage Stille-type reaction enabled syntheses of four diastereomers of amphirionin-2 to establish its absolute configuration.![]()
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Affiliation(s)
- Shota Kato
- Department of Applied Chemistry, Faculty of Science and Engineering, Chuo University 1-13-27 Kasuga, Bunkyo-ku Tokyo 112-8551 Japan
| | - Daichi Mizukami
- Department of Applied Chemistry, Faculty of Science and Engineering, Chuo University 1-13-27 Kasuga, Bunkyo-ku Tokyo 112-8551 Japan
| | - Tomoya Sugai
- Department of Applied Chemistry, Faculty of Science and Engineering, Chuo University 1-13-27 Kasuga, Bunkyo-ku Tokyo 112-8551 Japan
| | - Masashi Tsuda
- Center for Advanced Marine Core Research and Department of Agriculture and Marine Science, Kochi University Nankoku Kochi 783-8502 Japan
| | - Haruhiko Fuwa
- Department of Applied Chemistry, Faculty of Science and Engineering, Chuo University 1-13-27 Kasuga, Bunkyo-ku Tokyo 112-8551 Japan
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9
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Jiang H, Seidler G, Studer A. Carboamination of Unactivated Alkenes through Three-Component Radical Conjugate Addition. Angew Chem Int Ed Engl 2019; 58:16528-16532. [PMID: 31529676 PMCID: PMC6900080 DOI: 10.1002/anie.201910926] [Citation(s) in RCA: 47] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2019] [Indexed: 01/24/2023]
Abstract
Two-component Giese type radical additions are highly practical and established reactions. Herein, three-component radical conjugate additions of unactivated alkenes to Michael acceptors are reported. Amidyl radicals, oxidatively generated from α-amido oxy acids using redox catalysis, act as the third reaction component which add to the unactivated alkenes. The adduct radicals engage in Giese type additions to Michael acceptors to provide, after reduction, the three-component products in an overall alkene carboamination reaction. Transformations which can be conducted under practical mild conditions feature high functional group tolerance and broad substrate scope.
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Affiliation(s)
- Heng Jiang
- Organisch-Chemisches InstitutWestfälische Wilhelms-UniversitätCorrensstraß 4048149MünsterGermany
| | - Gesa Seidler
- Organisch-Chemisches InstitutWestfälische Wilhelms-UniversitätCorrensstraß 4048149MünsterGermany
| | - Armido Studer
- Organisch-Chemisches InstitutWestfälische Wilhelms-UniversitätCorrensstraß 4048149MünsterGermany
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10
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Jiang H, Seidler G, Studer A. Carboamination of Unactivated Alkenes through Three‐Component Radical Conjugate Addition. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201910926] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Heng Jiang
- Organisch-Chemisches InstitutWestfälische Wilhelms-Universität Corrensstraß 40 48149 Münster Germany
| | - Gesa Seidler
- Organisch-Chemisches InstitutWestfälische Wilhelms-Universität Corrensstraß 40 48149 Münster Germany
| | - Armido Studer
- Organisch-Chemisches InstitutWestfälische Wilhelms-Universität Corrensstraß 40 48149 Münster Germany
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11
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Quinn KJ, Hu Y, Miller PJ, Walsh RT, Caporello MA, Maliszewski ML, Markowski JH. Synthesis of the non-adjacent bis(tetrahydrofuran) core of squamostanin C by silicon-tethered, size-selective triple ring-closing metathesis. Tetrahedron Lett 2019. [DOI: 10.1016/j.tetlet.2019.05.064] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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12
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Liu J, Hoover JM. Cobalt-Catalyzed Aerobic Oxidative Cyclization of 2-Aminophenols with Isonitriles: 2-Aminophenol Enabled O2 Activation by Cobalt(II). Org Lett 2019; 21:4510-4514. [PMID: 31184180 DOI: 10.1021/acs.orglett.9b01384] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Jiaqi Liu
- C. Eugene Bennett Department of Chemistry, West Virginia University, Morgantown, West Virginia 26506, United States
| | - Jessica M. Hoover
- C. Eugene Bennett Department of Chemistry, West Virginia University, Morgantown, West Virginia 26506, United States
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13
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Chen F, Lai SQ, Zhu FF, Meng Q, Jiang Y, Yu W, Han B. Cu-Catalyzed Radical Cascade Annulations of Alkyne-Tethered N-Alkoxyamides with Air: Facile Access to Isoxazolidine/1,2-Oxazinane-Fused Isoquinolin-1(2H)-ones. ACS Catal 2018. [DOI: 10.1021/acscatal.8b02445] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Fei Chen
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, 730000, People’s Republic of China
| | - Sheng-Qiang Lai
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, 730000, People’s Republic of China
| | - Fei-Fei Zhu
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, 730000, People’s Republic of China
| | - Qiang Meng
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, 730000, People’s Republic of China
| | - Yu Jiang
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, 730000, People’s Republic of China
| | - Wei Yu
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, 730000, People’s Republic of China
| | - Bing Han
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, 730000, People’s Republic of China
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14
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Ali S, Milanezi H, Alves TMF, Tormena CF, Ferreira MAB. Cobalt-Catalyzed Stereoselective Synthesis of 2,5- trans-THF Nitrile Derivatives as a Platform for Diversification: Development and Mechanistic Studies. J Org Chem 2018; 83:7694-7713. [PMID: 29878776 DOI: 10.1021/acs.joc.8b00575] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
A straightforward protocol integrating a sustainable approach for the synthesis of new 2,5- trans-THF nitrile derivatives enabling an easy diversification of its side chain scaffolds is described. The reaction tolerated different aromatic and alkyl substituents, affording the corresponding 2,5- trans-THFs in high diastereoselectivity. A detailed mechanistic study using DFT calculation reveals details of the ligand-exchange step, suggesting an inner-sphere syn attack to form the 2,5- trans stereochemistry as the most likely pathway, excluding the previous cation radical intermediate. The formation of a Co-C intermediate is suggested on the basis of the homolytic cleavage to give the previously proposed free carbon radical intermediate.
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Affiliation(s)
- Sajjad Ali
- Centre of Excellence for Research in Sustainable Chemistry (CERSusChem), Department of Chemistry , Federal University of São Carlos - UFSCar , São Carlos, São Paulo 13565-905 , Brazil
| | - Henrique Milanezi
- Centre of Excellence for Research in Sustainable Chemistry (CERSusChem), Department of Chemistry , Federal University of São Carlos - UFSCar , São Carlos, São Paulo 13565-905 , Brazil
| | - Tânia M F Alves
- Centre of Excellence for Research in Sustainable Chemistry (CERSusChem), Department of Chemistry , Federal University of São Carlos - UFSCar , São Carlos, São Paulo 13565-905 , Brazil
| | | | - Marco A B Ferreira
- Centre of Excellence for Research in Sustainable Chemistry (CERSusChem), Department of Chemistry , Federal University of São Carlos - UFSCar , São Carlos, São Paulo 13565-905 , Brazil
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15
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Heteroatom-Centred Radicals for the Synthesis of Heterocyclic Compounds. TOPICS IN HETEROCYCLIC CHEMISTRY 2018. [DOI: 10.1007/7081_2018_19] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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16
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Peng XX, Wei D, Han WJ, Chen F, Yu W, Han B. Dioxygen Activation via Cu-Catalyzed Cascade Radical Reaction: An Approach to Isoxazoline/Cyclic Nitrone-Featured α-Ketols. ACS Catal 2017. [DOI: 10.1021/acscatal.7b03078] [Citation(s) in RCA: 60] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Xie-Xue Peng
- State Key Laboratory of Applied Organic
Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, 730000, People’s Republic of China
| | - Dian Wei
- State Key Laboratory of Applied Organic
Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, 730000, People’s Republic of China
| | - Wen-Jun Han
- State Key Laboratory of Applied Organic
Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, 730000, People’s Republic of China
| | - Fei Chen
- State Key Laboratory of Applied Organic
Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, 730000, People’s Republic of China
| | - Wei Yu
- State Key Laboratory of Applied Organic
Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, 730000, People’s Republic of China
| | - Bing Han
- State Key Laboratory of Applied Organic
Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, 730000, People’s Republic of China
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17
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Faisca Phillips AM, Pombeiro AJL, Kopylovich MN. Recent Advances in Cascade Reactions Initiated by Alcohol Oxidation. ChemCatChem 2016. [DOI: 10.1002/cctc.201601176] [Citation(s) in RCA: 49] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Affiliation(s)
- Ana Maria Faisca Phillips
- Centro de Química Estrutural, Complexo I; Instituto Superior Técnico; Universidade de Lisboa; Av. Rovisco Pais 1049-001 Lisboa Portugal
| | - Armando J. L. Pombeiro
- Centro de Química Estrutural, Complexo I; Instituto Superior Técnico; Universidade de Lisboa; Av. Rovisco Pais 1049-001 Lisboa Portugal
| | - Maximilian N. Kopylovich
- Centro de Química Estrutural, Complexo I; Instituto Superior Técnico; Universidade de Lisboa; Av. Rovisco Pais 1049-001 Lisboa Portugal
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18
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Murata Y, Uenishi J. Base- and acid-catalyzed intramolecular oxy-Michael reaction for the synthesis of tetrahydrofuran ring. Tetrahedron 2016. [DOI: 10.1016/j.tet.2016.06.081] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
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19
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de la Torre A, Cuyamendous C, Bultel-Poncé V, Durand T, Galano JM, Oger C. Recent advances in the synthesis of tetrahydrofurans and applications in total synthesis. Tetrahedron 2016. [DOI: 10.1016/j.tet.2016.06.076] [Citation(s) in RCA: 47] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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20
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Alves TM, Costa MO, Bispo BA, Pedrosa FL, Ferreira MA. Cobalt-catalyzed oxidative cyclization of gem -disubstituted conjugated alkenols. Tetrahedron Lett 2016. [DOI: 10.1016/j.tetlet.2016.06.064] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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21
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Borrajo-Calleja GM, Bizet V, Mazet C. Palladium-Catalyzed Enantioselective Intermolecular Carboetherification of Dihydrofurans. J Am Chem Soc 2016; 138:4014-7. [PMID: 26978243 DOI: 10.1021/jacs.6b02158] [Citation(s) in RCA: 70] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A novel enantioselective Pd-catalyzed intermolecular carboetherification of dihydrofurans is reported. The in situ generation of chiral bis-phosphine mono-oxide ligands is crucial, and a general catalytic system has been identified based on this approach. It provides access to a variety of fused tetrahydrofurobenzofurans in consistently high yield and enantiomeric excess.
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Affiliation(s)
- Gustavo M Borrajo-Calleja
- Department of Organic Chemistry, University of Geneva , 30 quai Ernest Ansermet, 1211 Geneva, Switzerland
| | - Vincent Bizet
- Department of Organic Chemistry, University of Geneva , 30 quai Ernest Ansermet, 1211 Geneva, Switzerland
| | - Clément Mazet
- Department of Organic Chemistry, University of Geneva , 30 quai Ernest Ansermet, 1211 Geneva, Switzerland
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22
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Halbach RL, Teets TS, Nocera DG. Oxygen Reduction Mechanism of Monometallic Rhodium Hydride Complexes. Inorg Chem 2015; 54:7335-44. [DOI: 10.1021/acs.inorgchem.5b00856] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Robert L. Halbach
- Department of Chemistry, 6-335, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, Massachusetts 02139-4307, United States
- Department of Chemistry and Chemical Biology, Harvard University, 12 Oxford Street, Cambridge, Massachusetts 02138-2902, United States
| | - Thomas S. Teets
- Department of Chemistry, 6-335, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, Massachusetts 02139-4307, United States
- Department of Chemistry, University of Houston, 112 Fleming Building Houston, Texas 77204-5003, United States
| | - Daniel G. Nocera
- Department of Chemistry, 6-335, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, Massachusetts 02139-4307, United States
- Department of Chemistry and Chemical Biology, Harvard University, 12 Oxford Street, Cambridge, Massachusetts 02138-2902, United States
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23
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Dönges M, Amberg M, Niebergall M, Hartung J. Activating tert-butyl hydroperoxide by chelated vanadates for stereoselectively preparing sidechain-functionalized tetrahydrofurans. J Inorg Biochem 2015; 147:204-20. [PMID: 25958253 DOI: 10.1016/j.jinorgbio.2015.04.009] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2014] [Revised: 04/13/2015] [Accepted: 04/14/2015] [Indexed: 11/25/2022]
Abstract
tert-Butyl hydroperoxide (TBHP) stereoselectively oxidizes substituted 4-pentenols, when activated by (ethyl)[cis-(piperidine-2,6-diyl)dimethyl] vanadates. The reaction affords (tetrahydrofuran-2-yl)methanols in up to 89% yield, and in stereoselectivity ranging between moderate (cis:trans=32:68) to excellent (>99:1). Correlating structures of 4-pentenols, differing by substitution at tetragonal and trigonal stereocenters, to configuration of products obtained from oxidative cyclization provides a reaction model explaining the origin of stereoselectivity by (i) intramolecular oxygen atom transfer to (ii) a chair-like folded alkenol, being (iii) hydrogen-bonded to one of the two aminodiolate oxygens of the chelated vanadate, having (iv) substituents in the chair-like transition structure preferentially aligned equatorially. Substituents at trigonal stereocenters improve 2,5-cis- and 2,4-trans-selectivity for oxidative 4-pentenol cyclization in case of (Z)-configuration. An (E)-substituent does not alter selectivity exerted by a terminal (Z)-substituent of similar steric size. Larger (E)-groups increase the fraction of 2,5-trans-cyclized products. The reaction model additionally implements results from vanadium-51 NMR spectroscopy and density functional theory. According to theory, the (dialkoxy)(oxo)vanadium substituent exerts in the preferred end-on conformation almost no effect on structure and bonding of the peroxide group in tert-butylperoxy vanadates. Changing conformation to a higher in energy side-on arrangement puts the vanadate-bound tert-butylperoxy group into a position to serve in a concerted reaction as combined electron acceptor and oxygen atom donor.
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Affiliation(s)
- Maike Dönges
- Fachbereich Chemie, Organische Chemie, Technische Universität Kaiserslautern, Erwin-Schrödinger-Straße, D-67663 Kaiserslautern, Germany
| | - Matthias Amberg
- Fachbereich Chemie, Organische Chemie, Technische Universität Kaiserslautern, Erwin-Schrödinger-Straße, D-67663 Kaiserslautern, Germany
| | - Mark Niebergall
- Fachbereich Chemie, Organische Chemie, Technische Universität Kaiserslautern, Erwin-Schrödinger-Straße, D-67663 Kaiserslautern, Germany
| | - Jens Hartung
- Fachbereich Chemie, Organische Chemie, Technische Universität Kaiserslautern, Erwin-Schrödinger-Straße, D-67663 Kaiserslautern, Germany.
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24
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Parella R, Babu SA. Regio- and Stereoselective Pd-Catalyzed Direct Arylation of Unactivated sp3 C(3)–H Bonds of Tetrahydrofuran and 1,4-Benzodioxane Systems. J Org Chem 2015; 80:2339-55. [DOI: 10.1021/acs.joc.5b00025] [Citation(s) in RCA: 55] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Ramarao Parella
- Department of Chemical Sciences, Indian Institute of Science Education and Research (IISER) Mohali, Manauli
P.O., Sector 81, SAS Nagar, Mohali, Knowledge
City, Punjab 140306, India
| | - Srinivasarao Arulananda Babu
- Department of Chemical Sciences, Indian Institute of Science Education and Research (IISER) Mohali, Manauli
P.O., Sector 81, SAS Nagar, Mohali, Knowledge
City, Punjab 140306, India
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25
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Kopylovich MN, Ribeiro AP, Alegria EC, Martins NM, Martins LM, Pombeiro AJ. Catalytic Oxidation of Alcohols. ADVANCES IN ORGANOMETALLIC CHEMISTRY 2015. [DOI: 10.1016/bs.adomc.2015.02.004] [Citation(s) in RCA: 110] [Impact Index Per Article: 12.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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26
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Chen L, Yang J, Li L, Weng Z, Kang Q. Cobalt-catalyzed direct C–C bond formation between tetrahydrofuran and alkynes. Tetrahedron Lett 2014. [DOI: 10.1016/j.tetlet.2014.09.042] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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27
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Schur C, Kelm H, Gottwald T, Ludwig A, Kneuer R, Hartung J. Annulated and bridged tetrahydrofurans from alkenoxyl radical cyclization. Org Biomol Chem 2014; 12:8288-307. [PMID: 25208936 DOI: 10.1039/c4ob01266f] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
4-Pentenoxyl radicals sharing two or more carbon atoms with a cycloalkane cyclize in a predictable manner stereoselectively and regioselectively to afford in solutions of bromotrichloromethane cycloalkyl-fused or -bridged 2-bromomethyltetrahydrofurans in up to 95% yield. Stereoselectivity in alkenoxyl radical ring closures arises from cumulative steric effects. The substituent positioned the closest to the alkene carbon, which is being attacked by the oxygen radical, exerts the strongest stereodirecting effect. This principal inductor guides 5-exo-cyclization 2,3-trans- or 2,4-cis-selectively. The substituent located further from the attacked π-bond is the secondary inductor. A secondary inductor in the relative trans-configuration enhances stereodifferentiation by the primary inductor; a cis-configured secondary inductor decreases this effect. A secondary inductor is not able to overrule the guiding effect of a similar sized primary inductor. Intramolecular 4-pentenoxyl radical additions to a cyclohexene-bound exo-methylene group or to endocyclic double bonds proceed cis-specifically, as exemplified by synthesis of a diastereomerically pure bromobicyclo[2.2.1]heptyl-annulated tetrahydrofuran from the verbenylethyloxyl radical. According to theory, the experimental 2,3-cis-specificity in alkoxyl radical cyclization to an endocyclic π-bond arises from strain associated with the 2,3-trans-ring closure.
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Affiliation(s)
- Christine Schur
- Fachbereich Chemie, Organische Chemie, Technische Universität Kaiserslautern, Erwin-Schrödinger-Straße, D-67663 Kaiserslautern, Germany.
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28
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Peng XX, Deng YJ, Yang XL, Zhang L, Yu W, Han B. Iminoxyl Radical-Promoted Dichotomous Cyclizations: Efficient Oxyoximation and Aminooximation of Alkenes. Org Lett 2014; 16:4650-3. [DOI: 10.1021/ol502258n] [Citation(s) in RCA: 95] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Affiliation(s)
- Xie-Xue Peng
- State Key Laboratory of Applied
Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, 730000, P. R. China
| | - Yun-Jing Deng
- State Key Laboratory of Applied
Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, 730000, P. R. China
| | - Xiu-Long Yang
- State Key Laboratory of Applied
Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, 730000, P. R. China
| | - Lin Zhang
- State Key Laboratory of Applied
Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, 730000, P. R. China
| | - Wei Yu
- State Key Laboratory of Applied
Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, 730000, P. R. China
| | - Bing Han
- State Key Laboratory of Applied
Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, 730000, P. R. China
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29
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30
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Dönges M, Amberg M, Stapf G, Kelm H, Bergsträßer U, Hartung J. cis-2,6-Bis-(methanolate)-piperidine oxovanadium(V) complexes as catalysts for oxidative alkenol cyclization by tert-butyl hydroperoxide. Inorganica Chim Acta 2014. [DOI: 10.1016/j.ica.2014.02.007] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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31
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Bovino MT, Liwosz TW, Kendel NE, Miller Y, Tyminska N, Zurek E, Chemler SR. Enantioselective copper-catalyzed carboetherification of unactivated alkenes. Angew Chem Int Ed Engl 2014; 53:6383-7. [PMID: 24798697 DOI: 10.1002/anie.201402462] [Citation(s) in RCA: 79] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2014] [Revised: 03/25/2014] [Indexed: 11/06/2022]
Abstract
Chiral saturated oxygen heterocycles are important components of bioactive compounds. Cyclization of alcohols onto pendant alkenes is a direct route to their synthesis, but few catalytic enantioselective methods enabling cyclization onto unactivated alkenes exist. Herein reported is a highly efficient copper-catalyzed cyclization of γ-unsaturated pentenols which terminates in C-C bond formation, a net alkene carboetherification. Both intra- and intermolecular C-C bond formations are demonstrated, thus yielding functionalized chiral tetrahydrofurans as well as fused-ring and bridged-ring oxabicyclic products. Transition-state calculations support a cis-oxycupration stereochemistry-determining step.
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Affiliation(s)
- Michael T Bovino
- Department of Chemistry, The State University of New York at Buffalo, Buffalo, NY 14260 (USA)
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32
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Bovino MT, Liwosz TW, Kendel NE, Miller Y, Tyminska N, Zurek E, Chemler SR. Enantioselective Copper‐Catalyzed Carboetherification of Unactivated Alkenes. Angew Chem Int Ed Engl 2014. [DOI: 10.1002/ange.201402462] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Michael T. Bovino
- Department of Chemistry, The State University of New York at Buffalo, Buffalo, NY 14260 (USA)
| | - Timothy W. Liwosz
- Department of Chemistry, The State University of New York at Buffalo, Buffalo, NY 14260 (USA)
| | - Nicole E. Kendel
- Department of Chemistry, The State University of New York at Buffalo, Buffalo, NY 14260 (USA)
| | - Yan Miller
- Department of Chemistry, The State University of New York at Buffalo, Buffalo, NY 14260 (USA)
| | - Nina Tyminska
- Department of Chemistry, The State University of New York at Buffalo, Buffalo, NY 14260 (USA)
| | - Eva Zurek
- Department of Chemistry, The State University of New York at Buffalo, Buffalo, NY 14260 (USA)
| | - Sherry R. Chemler
- Department of Chemistry, The State University of New York at Buffalo, Buffalo, NY 14260 (USA)
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33
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Karthikeyan I, Alamsetti SK, Sekar G. Isolation and Characterization of a Trinuclear Cobalt Complex Containing Trigonal-Prismatic Cobalt in Secondary Alcohol Aerobic Oxidation. Organometallics 2014. [DOI: 10.1021/om500003d] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- I. Karthikeyan
- Department
of Chemistry, Indian Institute of Technology Madras, Chennai 600036, Tamil Nadu, India
| | - S. K. Alamsetti
- Department
of Chemistry, Indian Institute of Technology Madras, Chennai 600036, Tamil Nadu, India
| | - G. Sekar
- Department
of Chemistry, Indian Institute of Technology Madras, Chennai 600036, Tamil Nadu, India
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34
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Zhang F, Du P, Chen J, Wang H, Luo Q, Wan X. Co-Catalyzed Synthesis of 1,4-Dicarbonyl Compounds Using TBHP Oxidant. Org Lett 2014; 16:1932-5. [DOI: 10.1021/ol5004687] [Citation(s) in RCA: 75] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Feng Zhang
- Key Laboratory of Organic
Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering
and Materials Science, Soochow University, Suzhou 215123, China
| | - Peng Du
- Key Laboratory of Organic
Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering
and Materials Science, Soochow University, Suzhou 215123, China
| | - Jijun Chen
- Key Laboratory of Organic
Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering
and Materials Science, Soochow University, Suzhou 215123, China
| | - Hongxiang Wang
- Key Laboratory of Organic
Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering
and Materials Science, Soochow University, Suzhou 215123, China
| | - Qiang Luo
- Key Laboratory of Organic
Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering
and Materials Science, Soochow University, Suzhou 215123, China
| | - Xiaobing Wan
- Key Laboratory of Organic
Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering
and Materials Science, Soochow University, Suzhou 215123, China
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35
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Fries P, Müller MK, Hartung J. Stereoselective synthesis of side chain-functionalized tetrahydropyrans from 5-hexenols. Tetrahedron 2014. [DOI: 10.1016/j.tet.2013.12.019] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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36
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Urabe F, Miyamoto S, Takahashi K, Ishihara J, Hatakeyama S. Formal [4 + 1]-Cycloaddition of Homopropargyl Alcohols to Diazo Dicarbonyl Compounds Giving Substituted Tetrahydrofurans. Org Lett 2014; 16:1004-7. [DOI: 10.1021/ol403746r] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Affiliation(s)
- Fumiya Urabe
- Graduate School of Biomedical
Sciences, Nagasaki University, Nagasaki 852-8521, Japan
| | - Shohei Miyamoto
- Graduate School of Biomedical
Sciences, Nagasaki University, Nagasaki 852-8521, Japan
| | - Keisuke Takahashi
- Graduate School of Biomedical
Sciences, Nagasaki University, Nagasaki 852-8521, Japan
| | - Jun Ishihara
- Graduate School of Biomedical
Sciences, Nagasaki University, Nagasaki 852-8521, Japan
| | - Susumi Hatakeyama
- Graduate School of Biomedical
Sciences, Nagasaki University, Nagasaki 852-8521, Japan
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Benzoylacetonate and its fluorinated derivatives as ligands for Co(II) complexes: the effect of the presence of fluorine atoms on the crystal packing. Struct Chem 2013. [DOI: 10.1007/s11224-013-0344-8] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
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38
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Meng L, Zhang G, Liu C, Wu K, Lei A. Trifluoromethanesulfonic Acid Catalyzed Synergetic Oxidative/[3+2] Cyclization of Quinones with Olefins. Angew Chem Int Ed Engl 2013; 52:10195-8. [DOI: 10.1002/anie.201305885] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2013] [Indexed: 11/12/2022]
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39
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Meng L, Zhang G, Liu C, Wu K, Lei A. Trifluoromethanesulfonic Acid Catalyzed Synergetic Oxidative/[3+2] Cyclization of Quinones with Olefins. Angew Chem Int Ed Engl 2013. [DOI: 10.1002/ange.201305885] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
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40
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41
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Castillo RR, Abet V, Aquino M, Gandara Z, Retailleau P, Arseniyadis S. Increasing the Dimensionality of Modular Domino Reactions Triggered by Oxidative Cleavage: A Two-Step Protocol Towards a Variety of Stereodefined Complex Oxygen Heterocycles. European J Org Chem 2013. [DOI: 10.1002/ejoc.201201483] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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42
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Fries P, Müller MK, Hartung J. An aerobic oxidation/homolytic substitution-cascade for stereoselective methylsulfanyl-cyclization of 4-pentenols. Org Biomol Chem 2013; 11:2630-7. [DOI: 10.1039/c3ob26590k] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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43
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Hewitt JFM, Williams L, Aggarwal P, Smith CD, France DJ. Palladium-catalyzed heteroallylation of unactivated alkenes – synthesis of citalopram. Chem Sci 2013. [DOI: 10.1039/c3sc51222c] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
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44
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Synthesis of Saturated Heterocycles via Metal-Catalyzed Alkene Carboamination or Carboalkoxylation Reactions. TOPICS IN HETEROCYCLIC CHEMISTRY 2013. [DOI: 10.1007/7081_2012_98] [Citation(s) in RCA: 53] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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45
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Wille U. Radical Cascades Initiated by Intermolecular Radical Addition to Alkynes and Related Triple Bond Systems. Chem Rev 2012; 113:813-53. [DOI: 10.1021/cr100359d] [Citation(s) in RCA: 465] [Impact Index Per Article: 38.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Affiliation(s)
- Uta Wille
- School of Chemistry and
BIO21 Molecular Science and
Biotechnology Institute, Australian Research Council Centre of Excellence
for Free Radical Chemistry and Biotechnology, The University of Melbourne, 30 Flemington Road, Parkville, Victoria
3010, Australia
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46
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Miller Y, Miao L, Hosseini AS, Chemler SR. Copper-catalyzed intramolecular alkene carboetherification: synthesis of fused-ring and bridged-ring tetrahydrofurans. J Am Chem Soc 2012; 134:12149-56. [PMID: 22720755 PMCID: PMC3430129 DOI: 10.1021/ja3034075] [Citation(s) in RCA: 139] [Impact Index Per Article: 11.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Fused-ring and bridged-ring tetrahydrofuran scaffolds are found in a number of natural products and biologically active compounds. A new copper-catalyzed intramolecular carboetherification of alkenes for the synthesis of bicyclic tetrahydrofurans is reported herein. The reaction involves Cu-catalyzed intramolecular addition of alcohols to unactivated alkenes and subsequent aryl C-H functionalization provides the C-C bond. Mechanistic studies indicate a primary carbon radical intermediate is involved and radical addition to the aryl ring is the likely C-C bond-forming mechanism. Preliminary catalytic enantioselective reactions are promising (up to 75% ee) and provide evidence that copper is involved in the alkene addition step, likely through a cis-oxycupration mechanism. Catalytic enantioselective alkene carboetherification reactions are rare and future development of this new method into a highly enantioselective process is promising. During the course of the mechanistic studies a protocol for alkene hydroetherification was also developed.
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Affiliation(s)
- Yan Miller
- Department of Chemistry, The State University of New York at Buffalo, Buffalo, New York 14260, United States
| | - Lei Miao
- Department of Chemistry, The State University of New York at Buffalo, Buffalo, New York 14260, United States
| | - Azade S. Hosseini
- Department of Chemistry, The State University of New York at Buffalo, Buffalo, New York 14260, United States
| | - Sherry R. Chemler
- Department of Chemistry, The State University of New York at Buffalo, Buffalo, New York 14260, United States
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47
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Teets TS, Nocera DG. Oxygen Reduction Reactions of Monometallic Rhodium Hydride Complexes. Inorg Chem 2012; 51:7192-201. [DOI: 10.1021/ic300279z] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Thomas S. Teets
- Department of Chemistry, 6-335, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge,
Massachusetts 02139-4307, United States
| | - Daniel G. Nocera
- Department of Chemistry, 6-335, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge,
Massachusetts 02139-4307, United States
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48
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Yeung KS, Peng XS, Wu J, Hou XL. Five-Membered Ring Systems: Furans and Benzofurans. PROGRESS IN HETEROCYCLIC CHEMISTRY 2012. [DOI: 10.1016/b978-0-08-096807-0.00007-5] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
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49
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Ward AF, Xu Y, Wolfe JP. Synthesis of chromans via Pd-catalyzed alkene carboetherification reactions. Chem Commun (Camb) 2011; 48:609-11. [PMID: 22113305 DOI: 10.1039/c1cc15880e] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A new method for the construction of 2-substituted and 2,2-disubstituted chromans via Pd-catalyzed carboetherification reactions between aryl/alkenyl halides and 2-(but-3-en-1-yl)phenols is described. These reactions effect formation of a C-O bond and a C-C bond to afford the chroman products in good yield, and also provide stereoselective access to tricyclic chroman derivatives.
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Affiliation(s)
- Amanda F Ward
- University of Michigan, Department of Chemistry, 930 N. University Ave., Ann Arbor, MI 48109-1055, USA
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50
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Saito A, Anzai T, Matsumoto A, Hanzawa Y. PIFA-mediated oxidative cycloisomerization of 2-propargyl-1,3-dicarbonyl compounds: divergent synthesis of furfuryl alcohols and furfurals. Tetrahedron Lett 2011. [DOI: 10.1016/j.tetlet.2011.06.117] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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