1
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Yoshioka E, Imoto Y, Yamaoka Y, Ikeda T, Takahashi H, Tanaka R, Hayashi N, Miyabe H. Intramolecular Cyclopropanation of Active Methylene Derivatives Based on FeCl 2 or FeCl 3-Promoted Radical-Polar Crossover Reactions. Chemistry 2024; 30:e202400602. [PMID: 38658317 DOI: 10.1002/chem.202400602] [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: 02/14/2024] [Revised: 04/23/2024] [Accepted: 04/24/2024] [Indexed: 04/26/2024]
Abstract
Radical-polar crossover reactions were studied for the intramolecular cyclopropanation of active methylene derivatives. In the presence of FeCl3 as a stoichiometric oxidant and K2HPO4 as a base, the dehydrogenative cyclopropanation of active methylenes proceeded through the FeCl3-promoted oxidative radical cyclization followed by the ionic cyclization to give the bicyclic cyclopropanes. The use of α-chloro-active methylenes leads the subcatalytic cyclopropanation involving two redox pathways. In the presence of K2HPO4, the redox cyclopropanation proceeded by using FeCl2 (20 mol%) in combination with ligand (20 mol%).
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Affiliation(s)
- Eito Yoshioka
- School of Pharmacy and Department of Pharmacy, Hyogo Medical University Minatojima, Chuo-ku, Kobe, 650-8530, Japan
| | - Yuuki Imoto
- School of Pharmacy and Department of Pharmacy, Hyogo Medical University Minatojima, Chuo-ku, Kobe, 650-8530, Japan
| | - Yousuke Yamaoka
- School of Pharmacy and Department of Pharmacy, Hyogo Medical University Minatojima, Chuo-ku, Kobe, 650-8530, Japan
| | - Tomoko Ikeda
- School of Pharmacy and Department of Pharmacy, Hyogo Medical University Minatojima, Chuo-ku, Kobe, 650-8530, Japan
| | - Hiroki Takahashi
- School of Pharmacy and Department of Pharmacy, Hyogo Medical University Minatojima, Chuo-ku, Kobe, 650-8530, Japan
| | - Ryousuke Tanaka
- School of Pharmacy and Department of Pharmacy, Hyogo Medical University Minatojima, Chuo-ku, Kobe, 650-8530, Japan
| | - Naoki Hayashi
- School of Pharmacy and Department of Pharmacy, Hyogo Medical University Minatojima, Chuo-ku, Kobe, 650-8530, Japan
| | - Hideto Miyabe
- School of Pharmacy and Department of Pharmacy, Hyogo Medical University Minatojima, Chuo-ku, Kobe, 650-8530, Japan
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2
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Cho HJ, Kim YL, Kim JH. Rh(II)-Catalyzed C–N Bond Formation Using Enynones and N–H Imines: An Approach to Diarylmethylamines. J Org Chem 2022; 87:16424-16435. [DOI: 10.1021/acs.joc.2c02119] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Ho-Jun Cho
- Department of Chemistry (BK21 Four), Research Institute of Natural Science, Gyeongsang National University, 52828, Jinju, Korea
| | - Ye Lim Kim
- Department of Chemistry (BK21 Four), Research Institute of Natural Science, Gyeongsang National University, 52828, Jinju, Korea
| | - Ju Hyun Kim
- Department of Chemistry (BK21 Four), Research Institute of Natural Science, Gyeongsang National University, 52828, Jinju, Korea
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3
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Hong K, Shu J, Dong S, Zhang Z, He Y, Liu M, Huang J, Hu W, Xu X. Asymmetric Three-Component Reaction of Enynal with Alcohol and Imine as An Expeditious Track to Afford Chiral α-Furyl-β-amino Carboxylate Derivatives. ACS Catal 2022. [DOI: 10.1021/acscatal.2c04022] [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)
- Kemiao Hong
- Guangdong Provincial Key Laboratory of Chiral Molecule and Drug Discovery, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, China
| | - Jirong Shu
- Guangdong Provincial Key Laboratory of Chiral Molecule and Drug Discovery, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, China
| | - Shanliang Dong
- Guangdong Provincial Key Laboratory of Chiral Molecule and Drug Discovery, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, China
| | - Zhijing Zhang
- Guangdong Provincial Key Laboratory of Chiral Molecule and Drug Discovery, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, China
| | - Yicheng He
- Guangdong Provincial Key Laboratory of Chiral Molecule and Drug Discovery, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, China
| | - Mengting Liu
- Guangdong Provincial Key Laboratory of Chiral Molecule and Drug Discovery, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, China
| | - Jingjing Huang
- Guangdong Provincial Key Laboratory of Chiral Molecule and Drug Discovery, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, China
| | - Wenhao Hu
- Guangdong Provincial Key Laboratory of Chiral Molecule and Drug Discovery, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, China
| | - Xinfang Xu
- Guangdong Provincial Key Laboratory of Chiral Molecule and Drug Discovery, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, China
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4
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Quintavalla A, Veronesi R, Speziali L, Martinelli A, Zaccheroni N, Mummolo L, Lombardo M. Allenamides Playing Domino: A Redox‐Neutral Photocatalytic Synthesis of Functionalized 2‐Aminofurans. Adv Synth Catal 2022. [DOI: 10.1002/adsc.202101015] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Arianna Quintavalla
- Alma Mater Studiorum – University of Bologna Department of Chemistry “G. Ciamician” Via Selmi 2 40126 Bologna Italy
| | - Ruben Veronesi
- Alma Mater Studiorum – University of Bologna Department of Chemistry “G. Ciamician” Via Selmi 2 40126 Bologna Italy
| | - Laura Speziali
- Alma Mater Studiorum – University of Bologna Department of Chemistry “G. Ciamician” Via Selmi 2 40126 Bologna Italy
| | - Ada Martinelli
- Alma Mater Studiorum – University of Bologna Department of Chemistry “G. Ciamician” Via Selmi 2 40126 Bologna Italy
| | - Nelsi Zaccheroni
- Alma Mater Studiorum – University of Bologna Department of Chemistry “G. Ciamician” Via Selmi 2 40126 Bologna Italy
| | - Liviana Mummolo
- Alma Mater Studiorum – University of Bologna Department of Chemistry “G. Ciamician” Via Selmi 2 40126 Bologna Italy
| | - Marco Lombardo
- Alma Mater Studiorum – University of Bologna Department of Chemistry “G. Ciamician” Via Selmi 2 40126 Bologna Italy
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5
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Tian YM, Wang H, Ritu, König B. Photocatalytic synthesis of tetra-substituted furans promoted by carbon dioxide. Chem Sci 2022; 13:241-246. [PMID: 35059173 PMCID: PMC8694347 DOI: 10.1039/d1sc06403g] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2021] [Accepted: 12/06/2021] [Indexed: 11/21/2022] Open
Abstract
A CO2-promoted transition metal-free photocatalytic synthesis of tetra-substituted furan derivatives from 1,3-diketones as the only starting material.
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Affiliation(s)
- Ya-Ming Tian
- Institute of Organic Chemistry, Faculty of Chemistry and Pharmacy, University of Regensburg, 93040 Regensburg, Germany
| | - Huaiju Wang
- Institute of Organic Chemistry, Faculty of Chemistry and Pharmacy, University of Regensburg, 93040 Regensburg, Germany
| | - Ritu
- Institute of Organic Chemistry, Faculty of Chemistry and Pharmacy, University of Regensburg, 93040 Regensburg, Germany
| | - Burkhard König
- Institute of Organic Chemistry, Faculty of Chemistry and Pharmacy, University of Regensburg, 93040 Regensburg, Germany
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6
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Zhang B, Zhou P, Xu H, Huang J, Sun Y, Liu D, Yu F. Copper(II)‐Mediated Intermolecular Radical [3+2]‐Annulation of
N
,
N
‐Dimethyl Enaminones: Direct Access to 5‐Acyl‐3‐Furancarboxaldehydes. Adv Synth Catal 2021. [DOI: 10.1002/adsc.202100633] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Biao Zhang
- Faculty of Life Science and Technology Kunming University of Science and Technology Kunming 650500 People's Republic of China
| | - Pan Zhou
- Faculty of Life Science and Technology Kunming University of Science and Technology Kunming 650500 People's Republic of China
| | - Hui Xu
- Faculty of Life Science and Technology Kunming University of Science and Technology Kunming 650500 People's Republic of China
| | - Jiuzhong Huang
- School of Pharmacy Gannan Medical University Ganzhou 341000 People's Republic of China
| | - Yulin Sun
- Faculty of Life Science and Technology Kunming University of Science and Technology Kunming 650500 People's Republic of China
| | - Donghan Liu
- Faculty of Life Science and Technology Kunming University of Science and Technology Kunming 650500 People's Republic of China
| | - Fuchao Yu
- Faculty of Life Science and Technology Kunming University of Science and Technology Kunming 650500 People's Republic of China
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7
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Sato D, Watanabe Y, Noguchi K, Kanazawa J, Miyamoto K, Uchiyama M, Saito A. BF 3-Catalyzed Skeletal Rearrangement of 7-En-2-ynones to endo-Type Cyclic Dienes. Org Lett 2020; 22:4063-4067. [PMID: 32255350 DOI: 10.1021/acs.orglett.0c00949] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Transition-metal-catalyzed cycloisomerization reactions with skeletal rearrangement of 1,n-enynes to afford cyclic dienes (particularly exo-cyclization products) have been well studied. However, there are few reports on the nonmetal-catalyzed skeletal rearrangement of enynes and skeletal rearrangement of electron-deficient enynes such as n-en-2-ynones. Here, we describe BF3·MeCN-catalyzed synthesis of 3-alkylidenecyclohexenes from 7-en-2-ynones, representing the first nonmetal-catalyzed skeletal rearrangement of 1,6-enynes to endo-type cyclic dienes.
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Affiliation(s)
- Daisuke Sato
- Division of Applied Chemistry, Institute of Engineering, Tokyo University of Agriculture and Technology, 2-24-16 Naka-cho, Koganei, Tokyo 184-8588, Japan
| | - Yuichiro Watanabe
- Graduate School of Pharmaceutical Sciences, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Keiichi Noguchi
- Instrumentation Analysis Center, Tokyo University of Agriculture and Technology, 2-24-16 Naka-cho, Koganei, Tokyo 184-8588, Japan
| | - Junichiro Kanazawa
- Graduate School of Pharmaceutical Sciences, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Kazunori Miyamoto
- Graduate School of Pharmaceutical Sciences, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Masanobu Uchiyama
- Graduate School of Pharmaceutical Sciences, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan.,Cluster for Pioneering Research (CPR), RIKEN, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - Akio Saito
- Division of Applied Chemistry, Institute of Engineering, Tokyo University of Agriculture and Technology, 2-24-16 Naka-cho, Koganei, Tokyo 184-8588, Japan
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8
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Zhu D, Chen L, Fan H, Yao Q, Zhu S. Recent progress on donor and donor-donor carbenes. Chem Soc Rev 2020; 49:908-950. [PMID: 31958107 DOI: 10.1039/c9cs00542k] [Citation(s) in RCA: 208] [Impact Index Per Article: 52.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Donor and donor-donor carbenes are two important kinds of carbenes, which have experienced tremendous growth in the past two decades. This review provides a comprehensive overview of the recent development of donor and donor-donor carbene chemistry. The development of this chemistry offers efficient protocols to construct a wide variety of C-C and C-X bonds in organic synthesis. This review is organized based on the different types of carbene precursors, including diazo compounds, hydrazones, enynones, cycloheptatrienes and cyclopropenes. The typical transformations, the reaction mechanisms, as well as their subsequent applications in the synthesis of complex natural products and bioactive molecules are discussed. Due to the rapidly increasing interest in this area, we believe that this review will provide a timely and comprehensive discussion of recent progress in donor and donor-donor carbene chemistry.
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Affiliation(s)
- Dong Zhu
- Key Laboratory of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou, 510640, P. R. China.
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9
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Liu X, Wang Y, Zhou J, Yu Y, Cao H. Triflic Acid-Catalyzed Cycloisomerization of 1,6-Enynes: Facile Access to Carbo- and Azaheterocycles. J Org Chem 2020; 85:2406-2414. [PMID: 31870155 DOI: 10.1021/acs.joc.9b03112] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
A new and efficient strategy for enynes cyclization catalyzed by triflic acid has been described. Various valuable carbocycle-fused and heterocycle-fused ketones were easily accessed by the formation of new C-C and C-O bond under benign reaction conditions. This protocol also provides another opportunity to construct polycyclic single-nitrogen ketones via a cation-induced cascade cyclization of polyenynes. Furthermore, antiviral bioassays revealed that a few compounds exhibited good antiviral activity against tobacco mosaic virus at a concentration of 200 μg mL-1.
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Affiliation(s)
- Xiang Liu
- School of Chemistry and Chemical Engineering and Guangdong Cosmetics Engineering & Technology Research Center , Guangdong Pharmaceutical University , Zhongshan 528458 , P. R. of China
| | - Yuhan Wang
- School of Chemistry and Chemical Engineering and Guangdong Cosmetics Engineering & Technology Research Center , Guangdong Pharmaceutical University , Zhongshan 528458 , P. R. of China
| | - Jinlei Zhou
- School of Chemistry and Chemical Engineering and Guangdong Cosmetics Engineering & Technology Research Center , Guangdong Pharmaceutical University , Zhongshan 528458 , P. R. of China
| | - Yue Yu
- School of Chemistry and Chemical Engineering and Guangdong Cosmetics Engineering & Technology Research Center , Guangdong Pharmaceutical University , Zhongshan 528458 , P. R. of China
| | - Hua Cao
- School of Chemistry and Chemical Engineering and Guangdong Cosmetics Engineering & Technology Research Center , Guangdong Pharmaceutical University , Zhongshan 528458 , P. R. of China
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10
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Peil S, Fürstner A. Mechanistic Divergence in the Hydrogenative Synthesis of Furans and Butenolides: Ruthenium Carbenes Formed by gem-Hydrogenation or through Carbophilic Activation of Alkynes. Angew Chem Int Ed Engl 2019; 58:18476-18481. [PMID: 31609498 PMCID: PMC6916381 DOI: 10.1002/anie.201912161] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2019] [Indexed: 01/15/2023]
Abstract
Enynes with a tethered carbonyl substituent are converted into substituted furan derivatives upon hydrogenation using [Cp*RuCl]4 as the catalyst. Paradoxically, this transformation can occur along two distinct pathways, each of which proceeds via discrete pianostool ruthenium carbenes. In the first case, hydrogenation and carbene formation are synchronized ("gem-hydrogenation"), whereas the second pathway comprises carbene formation by carbophilic activation of the triple bond, followed by hydrogenative catalyst recycling. Representative carbene intermediates of either route were characterized by X-ray crystallography; the structural data prove that the attack of the carbonyl group on the electrophilic carbene center follows a Bürgi-Dunitz trajectory.
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Affiliation(s)
- Sebastian Peil
- Max-Planck-Institut für Kohlenforschung45470Mülheim/RuhrGermany
| | - Alois Fürstner
- Max-Planck-Institut für Kohlenforschung45470Mülheim/RuhrGermany
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11
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Peil S, Fürstner A. Mechanistic Divergence in the Hydrogenative Synthesis of Furans and Butenolides: Ruthenium Carbenes Formed by
gem
‐Hydrogenation or through Carbophilic Activation of Alkynes. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201912161] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Sebastian Peil
- Max-Planck-Institut für Kohlenforschung 45470 Mülheim/Ruhr Germany
| | - Alois Fürstner
- Max-Planck-Institut für Kohlenforschung 45470 Mülheim/Ruhr Germany
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12
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Li M, Yang F, Yuan T, Li H, Li J, Chen ZS, Ji K. Syntheses of Z-Iodovinylfurans and 2-Acyl Furans via Controllable Cyclization of Ynenones. J Org Chem 2019; 84:12617-12625. [PMID: 31525974 DOI: 10.1021/acs.joc.9b01852] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
A divergent synthesis of Z-iodovinylfurans and 2-acyl furans promoted by NIS via controllable cyclization of ynenones is reported. The reaction proceeded by sequential 5-exo-dig electrophilic cyclization to intermediate 2-(iodomethylene)-2H-furanium cation D, providing a range of synthetically valuable and useful trisubstituted furan derivatives 2 and 3 in moderate to excellent yields. This approach is metal-free, mild, and atom-economic, with good selectivity and high stereoselectivity.
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Affiliation(s)
- Mengxue Li
- College of Chemistry and Pharmacy, Shaanxi Key Laboratory of Natural Products & Chemical Biology , Northwest A&F University , 3 Taicheng Road , Yangling, Xianyang 712100 , Shaanxi , P. R. China
| | - Fang Yang
- College of Chemistry and Pharmacy, Shaanxi Key Laboratory of Natural Products & Chemical Biology , Northwest A&F University , 3 Taicheng Road , Yangling, Xianyang 712100 , Shaanxi , P. R. China
| | - Ting Yuan
- College of Chemistry and Pharmacy, Shaanxi Key Laboratory of Natural Products & Chemical Biology , Northwest A&F University , 3 Taicheng Road , Yangling, Xianyang 712100 , Shaanxi , P. R. China
| | - Haoyang Li
- College of Chemistry and Pharmacy, Shaanxi Key Laboratory of Natural Products & Chemical Biology , Northwest A&F University , 3 Taicheng Road , Yangling, Xianyang 712100 , Shaanxi , P. R. China
| | - Jian Li
- College of Chemistry and Pharmacy, Shaanxi Key Laboratory of Natural Products & Chemical Biology , Northwest A&F University , 3 Taicheng Road , Yangling, Xianyang 712100 , Shaanxi , P. R. China
| | - Zi-Sheng Chen
- College of Chemistry and Pharmacy, Shaanxi Key Laboratory of Natural Products & Chemical Biology , Northwest A&F University , 3 Taicheng Road , Yangling, Xianyang 712100 , Shaanxi , P. R. China
| | - Kegong Ji
- College of Chemistry and Pharmacy, Shaanxi Key Laboratory of Natural Products & Chemical Biology , Northwest A&F University , 3 Taicheng Road , Yangling, Xianyang 712100 , Shaanxi , P. R. China
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13
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Golovanov AA, Gusev DM, Odin IS, Zlotskii SS. Conjugated 2,4,1- and 1,4,3-enynones as polycentricelectrophiles in synthesis of heterocyclic compounds. Chem Heterocycl Compd (N Y) 2019. [DOI: 10.1007/s10593-019-02462-0] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
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14
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Yu Y, Su Z, Cao H. Strategies for Synthesis of Imidazo[1,2-a
]pyridine Derivatives: Carbene Transformations or C−H Functionalizations. CHEM REC 2018; 19:2105-2118. [DOI: 10.1002/tcr.201800168] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2018] [Revised: 11/22/2018] [Indexed: 01/21/2023]
Affiliation(s)
- Yue Yu
- School of Chemistry and Chemical Engineering; Guangdong Pharmaceutical University; Zhongshan 528458 P.R. of China
| | - Zhengquan Su
- School of Public Health; Guangdong Pharmaceutical University; Guangzhou 510006 P.R. of China
| | - Hua Cao
- School of Chemistry and Chemical Engineering; Guangdong Pharmaceutical University; Zhongshan 528458 P.R. of China
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15
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Lin MH, Yang TJ. A metal-free, hypervalent iodine(III)-induced tandem oxidative cycloisomerization based process for preparation of fluorescent diethyl 5,5′-diaryl-2,2′-bifuran-4,4′-dicarboxylates. Tetrahedron 2018. [DOI: 10.1016/j.tet.2018.10.069] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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16
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Pei C, Rong GW, Yu ZX, Xu XF. Copper-Catalyzed Intramolecular Annulation of Conjugated Enynones to Substituted 1 H-Indenes and Mechanistic Studies. J Org Chem 2018; 83:13243-13255. [PMID: 30284824 DOI: 10.1021/acs.joc.8b02064] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
Herein, a copper-catalyzed intramolecular cascade reaction of conjugated enynones to deliver substituted 1 H-indenes is reported. The inexpensive and less toxic copper salt served as the only catalyst in the transformation, affording the 3-(2-furyl)-substituted 1 H-indenes in good to excellent yields under mild reaction conditions with broad functional group tolerance and making it highly appealing for synthetic organic chemistry. Notably, detailed DFT calculations have been carried out to elucidate that the reaction undergoes a copper-mediated 5- exo-dig cyclization of enynones to afford copper-(2-furyl)-carbene intermediate, followed by diene-carbene cyclization (one step but involving 6π cyclization of Cu-carbene and reductive elimination) and 1,5-hydrogen shift to provide the 1 H-indenes.
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Affiliation(s)
- Chao Pei
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science , Soochow University , Suzhou 215123 , China
| | - Guang-Wei Rong
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science , Soochow University , Suzhou 215123 , China
| | - Zhi-Xiang Yu
- Beijing National Laboratory for Molecular Sciences (BNLMS), Key Laboratory of Bioorganic Chemistry and Molecular Engineering of Ministry of Education, College of Chemistry , Peking University , Beijing 100871 , China
| | - Xin-Fang Xu
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science , Soochow University , Suzhou 215123 , China.,School of Pharmaceutical Sciences , Sun Yat-sen University , Guangzhou 510006 , China
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17
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Gandhi S, Baire B. Calcium(II) Catalyzed Cycloisomerization of cis
-6-Hydroxy/(Acyloxy)hex-2-en-4-ynals to 2-Acyl- and 2-(Acyloxyalkenyl)furans. ChemistrySelect 2018. [DOI: 10.1002/slct.201800618] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Affiliation(s)
- Soniya Gandhi
- Department of Chemistry; Indian Institute of Technology Madras, Chennai; Tamilnadu INDIA-600036
| | - Beeraiah Baire
- Department of Chemistry; Indian Institute of Technology Madras, Chennai; Tamilnadu INDIA-600036
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18
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Klaus V, Wittmann S, Senn HM, Clark JS. Synthesis of fused tricyclic systems by thermal Cope rearrangement of furan-substituted vinyl cyclopropanes. Org Biomol Chem 2018; 16:3970-3982. [DOI: 10.1039/c8ob00924d] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A novel method for the construction of hexahydroazuleno[4,5-b]furans has been developed in which 1-furanyl-2-alkenylcyclopropanes undergo highly stereoselective thermal Cope rearrangement.
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Affiliation(s)
- Verena Klaus
- WestCHEM
- School of Chemistry
- Joseph Black Building
- University of Glasgow
- Glasgow G12 8QQ
| | - Stéphane Wittmann
- WestCHEM
- School of Chemistry
- Joseph Black Building
- University of Glasgow
- Glasgow G12 8QQ
| | - Hans M. Senn
- WestCHEM
- School of Chemistry
- Joseph Black Building
- University of Glasgow
- Glasgow G12 8QQ
| | - J. Stephen Clark
- WestCHEM
- School of Chemistry
- Joseph Black Building
- University of Glasgow
- Glasgow G12 8QQ
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19
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Xu C, Wittmann S, Gemander M, Ruohonen V, Clark JS. Trialkylphosphine-Mediated Synthesis of 2-Acyl Furans from Ynenones. Org Lett 2017; 19:3556-3559. [DOI: 10.1021/acs.orglett.7b01533] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Chao Xu
- WestCHEM, School of Chemistry,
Joseph Black Building, University of Glasgow, University Avenue, Glasgow G12 8QQ, United Kingdom
| | - Stéphane Wittmann
- WestCHEM, School of Chemistry,
Joseph Black Building, University of Glasgow, University Avenue, Glasgow G12 8QQ, United Kingdom
| | - Manuel Gemander
- WestCHEM, School of Chemistry,
Joseph Black Building, University of Glasgow, University Avenue, Glasgow G12 8QQ, United Kingdom
| | - Venla Ruohonen
- WestCHEM, School of Chemistry,
Joseph Black Building, University of Glasgow, University Avenue, Glasgow G12 8QQ, United Kingdom
| | - J. Stephen Clark
- WestCHEM, School of Chemistry,
Joseph Black Building, University of Glasgow, University Avenue, Glasgow G12 8QQ, United Kingdom
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20
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Huang W, Liu C, Gu Y. Auto-Tandem Catalysis-Induced Synthesis of Trisubstituted Furans through Domino Acid-Acid-Catalyzed Reaction of Aliphatic Aldehydes and 1,3-Dicarbonyl Compounds by usingN-Bromosuccinimide as Oxidant. Adv Synth Catal 2017. [DOI: 10.1002/adsc.201700074] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Affiliation(s)
- Wenbo Huang
- Key Laboratory of Material Chemistry for Energy Conversion and Storage, Ministry of Education, Hubei Key Laboratory of Material Chemistry and Service Failure, School of Chemistry and Chemical Engineering; Huazhong University of Science and Technology; 1037 Luoyu road Hongshan District, Wuhan 430074 People's Republic of China
| | - Changhui Liu
- Key Laboratory of Material Chemistry for Energy Conversion and Storage, Ministry of Education, Hubei Key Laboratory of Material Chemistry and Service Failure, School of Chemistry and Chemical Engineering; Huazhong University of Science and Technology; 1037 Luoyu road Hongshan District, Wuhan 430074 People's Republic of China
| | - Yanlong Gu
- Key Laboratory of Material Chemistry for Energy Conversion and Storage, Ministry of Education, Hubei Key Laboratory of Material Chemistry and Service Failure, School of Chemistry and Chemical Engineering; Huazhong University of Science and Technology; 1037 Luoyu road Hongshan District, Wuhan 430074 People's Republic of China
- State Key Laboratory for Oxo Synthesis and Selective Oxidation; Lanzhou Institute of Chemical Physics; Lanzhou 730000 People's Republic of China
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21
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Yu Y, Chen Y, Wu W, Jiang H. Facile synthesis of cyanofurans via Michael-addition/cyclization of ene–yne–ketones with trimethylsilyl cyanide. Chem Commun (Camb) 2017; 53:640-643. [DOI: 10.1039/c6cc08320j] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Carbene migratory insertion? No! Ene–yne–ketones were utilized as a Michael-addition acceptor to react with TMSCN, affording a series of cyanofurans.
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Affiliation(s)
- Yue Yu
- Key Laboratory of Functional Molecular Engineering of Guangdong Province
- School of Chemistry and Chemical Engineering
- South China University of Technology
- Guangzhou 510640
- China
| | - Yang Chen
- Key Laboratory of Functional Molecular Engineering of Guangdong Province
- School of Chemistry and Chemical Engineering
- South China University of Technology
- Guangzhou 510640
- China
| | - Wanqing Wu
- Key Laboratory of Functional Molecular Engineering of Guangdong Province
- School of Chemistry and Chemical Engineering
- South China University of Technology
- Guangzhou 510640
- China
| | - Huanfeng Jiang
- Key Laboratory of Functional Molecular Engineering of Guangdong Province
- School of Chemistry and Chemical Engineering
- South China University of Technology
- Guangzhou 510640
- China
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22
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Tharra P, Baire B. A coherent study on the Z-enoate assisted Meyer–Schuster rearrangement. Org Biomol Chem 2017. [DOI: 10.1039/c7ob01221g] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The impact of temperature, solvent, concentration of the counter ion and the nature of the arene nucleophile on the Z-enoate assisted Meyer–Schuster rearrangement of propargylic alcohols was studied.
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Affiliation(s)
| | - Beeraiah Baire
- Department of Chemistry
- Institute of Technology Madras
- Chennai-600036
- India
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23
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González-Pelayo S, López LA. Catching Elusive 2-Furyl Carbenes with Silanes: A Metal-Free Microwave-Assisted Silicon-Hydrogen Bond Functionalization. Adv Synth Catal 2016. [DOI: 10.1002/adsc.201601037] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Silvia González-Pelayo
- Departamento de Química Orgánica e Inorgánica and Instituto Universitario de Química Organometálica “Enrique Moles”; Universidad de Oviedo; c/ Julián Clavería, 8 33006 Oviedo Spain
| | - Luis A. López
- Departamento de Química Orgánica e Inorgánica and Instituto Universitario de Química Organometálica “Enrique Moles”; Universidad de Oviedo; c/ Julián Clavería, 8 33006 Oviedo Spain
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24
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Ram RN, Gupta DK, Soni VK. Copper(I)/Ligand-Catalyzed 5-endo Radical Cyclization-Aromatization of 2,2,2-Trichloroethyl Vinyl Ethers: Synthesis of 2,3-Difunctionalized 4-Chlorofurans. J Org Chem 2016; 81:1665-74. [PMID: 26796068 DOI: 10.1021/acs.joc.5b02830] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Copper(I)/ligand-catalyzed one pot synthesis of highly substituted 2,3-difunctionalized-4-chlorofurans has been reported. The reaction proceeds via a Cu(I)-catalyzed regioselective 5-endo-trig radical cyclization of 2,2,2-trichloroethyl vinyl ethers followed by the base-promoted dehydrochlorination. The success of the kinetically disfavored 5-endo cyclization was attributed to the formation of captodatively stabilized radical intermediate in the cyclization step and relatively high reaction temperature. Synthetic application of this protocol was also demonstrated in the preparation of alkyl and aryl substituted 4-chlorofuranonapthoquinones.
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Affiliation(s)
- Ram N Ram
- Department of Chemistry, Indian Institute of Technology Delhi , Hauz Khas, New Delhi-110016, India
| | - Dharmendra Kumar Gupta
- Department of Chemistry, Indian Institute of Technology Delhi , Hauz Khas, New Delhi-110016, India
| | - Vineet Kumar Soni
- Department of Chemistry, Indian Institute of Technology Delhi , Hauz Khas, New Delhi-110016, India
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25
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Tharra P, Baire B. The Z-enoate assisted, Meyer–Schuster rearrangement cascade: unconventional synthesis of α-arylenone esters. Chem Commun (Camb) 2016; 52:12147-12150. [DOI: 10.1039/c6cc06639a] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Brønsted acid promoted nucleophilation of propargylic alcohols during the Meyer–Schuster rearrangement (M–S) has been introduced. The reverse polarization of the M–S intermediate allenyl cation has been realized by employing a novel concept of cis-enoate assistance strategy.
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Affiliation(s)
| | - Beeraiah Baire
- Department of Chemistry
- Indian Institute of Technology Madras
- Chennai-600036
- India
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26
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Ponra S, Majumdar KC. Brønsted acid-promoted synthesis of common heterocycles and related bio-active and functional molecules. RSC Adv 2016. [DOI: 10.1039/c5ra27069c] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
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27
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Mal K, Kaur A, Das I. Chiral Substituted 3-Formylfurans from Carbohydrates: An Expedient Route viaN-Bromosuccinimide (NBS)-Mediated Electrophilic Cyclization. ASIAN J ORG CHEM 2015. [DOI: 10.1002/ajoc.201500272] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Kanchan Mal
- Organic and Medicinal Chemistry Division; CSIR-Indian Institute of Chemical Biology; 4, Raja S. C. Mullick Road, Jadavpur Kolkata 700 032 India
| | - Amanpreet Kaur
- Organic and Medicinal Chemistry Division; CSIR-Indian Institute of Chemical Biology; 4, Raja S. C. Mullick Road, Jadavpur Kolkata 700 032 India
| | - Indrajit Das
- Organic and Medicinal Chemistry Division; CSIR-Indian Institute of Chemical Biology; 4, Raja S. C. Mullick Road, Jadavpur Kolkata 700 032 India
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28
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Xia Y, Ge R, Chen L, Liu Z, Xiao Q, Zhang Y, Wang J. Palladium-Catalyzed Oxidative Cross-Coupling of Conjugated Enynones with Organoboronic Acids. J Org Chem 2015. [DOI: 10.1021/acs.joc.5b01350] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
- Ying Xia
- Beijing
National Laboratory of Molecular Sciences (BNLMS), Key Laboratory
of Bioorganic Chemistry and Molecular Engineering of Ministry of Education,
College of Chemistry, Peking University, Beijing 100871, China
| | - Rui Ge
- Beijing
National Laboratory of Molecular Sciences (BNLMS), Key Laboratory
of Bioorganic Chemistry and Molecular Engineering of Ministry of Education,
College of Chemistry, Peking University, Beijing 100871, China
| | - Li Chen
- Beijing
National Laboratory of Molecular Sciences (BNLMS), Key Laboratory
of Bioorganic Chemistry and Molecular Engineering of Ministry of Education,
College of Chemistry, Peking University, Beijing 100871, China
| | - Zhen Liu
- Beijing
National Laboratory of Molecular Sciences (BNLMS), Key Laboratory
of Bioorganic Chemistry and Molecular Engineering of Ministry of Education,
College of Chemistry, Peking University, Beijing 100871, China
| | - Qing Xiao
- Beijing
National Laboratory of Molecular Sciences (BNLMS), Key Laboratory
of Bioorganic Chemistry and Molecular Engineering of Ministry of Education,
College of Chemistry, Peking University, Beijing 100871, China
| | - Yan Zhang
- Beijing
National Laboratory of Molecular Sciences (BNLMS), Key Laboratory
of Bioorganic Chemistry and Molecular Engineering of Ministry of Education,
College of Chemistry, Peking University, Beijing 100871, China
| | - Jianbo Wang
- Beijing
National Laboratory of Molecular Sciences (BNLMS), Key Laboratory
of Bioorganic Chemistry and Molecular Engineering of Ministry of Education,
College of Chemistry, Peking University, Beijing 100871, China
- State
Key Laboratory of Organometallic Chemistry, Chinese Academy of Sciences, Shanghai 200032, China
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29
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Tharra P, Baire B. Mild Approach to 2-Acylfurans via Intercepted Meyer–Schuster Rearrangement of 6-Hydroxyhex-2-en-4-ynals. J Org Chem 2015. [DOI: 10.1021/acs.joc.5b01420] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Prabhakararao Tharra
- Department
of Chemistry, Indian Institute of Technology Madras, Chennai 600036, Tamil Nadu, India
| | - Beeraiah Baire
- Department
of Chemistry, Indian Institute of Technology Madras, Chennai 600036, Tamil Nadu, India
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30
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31
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32
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Lee CJ, Tsai CC, Hong SH, Chang GH, Yang MC, Möhlmann L, Lin W. Preparation of Furo[3,2-c]coumarins from 3-Cinnamoyl-4-hydroxy-2H-chromen-2-ones and Acyl Chlorides: A Bu3P-Mediated C-Acylation/Cyclization Sequence. Angew Chem Int Ed Engl 2015; 54:8502-5. [PMID: 26033344 DOI: 10.1002/anie.201502789] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2015] [Indexed: 11/07/2022]
Abstract
A Bu3P-mediated cyclization reaction of 3-cinnamoyl-4-hydroxy-2H-chromen-2-ones though electrophilic addition of acyl chlorides towards the synthesis of highly functionalized furo[3,2-c]coumarins bearing a phosphorus ylide moiety is described. These unprecedented cyclization reaction proceeds under mild reaction conditions within short reaction times (1 min to 1 h), and can be further applied in the synthesis of alkenyl-substituted furo[3,2-c]coumarins by the treatment with carbonyl electrophiles under basic conditions.
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Affiliation(s)
- Chia-Jui Lee
- Department of Chemistry, National Taiwan Normal University, 88, Sec. 4, Tingchow Road, Taipei 11677 (Taiwan, R.O.C.)
| | - Cheng-Che Tsai
- Department of Chemistry, National Taiwan Normal University, 88, Sec. 4, Tingchow Road, Taipei 11677 (Taiwan, R.O.C.)
| | - Shao-Hao Hong
- Department of Chemistry, National Taiwan Normal University, 88, Sec. 4, Tingchow Road, Taipei 11677 (Taiwan, R.O.C.)
| | - Geng-Hua Chang
- Department of Chemistry, National Taiwan Normal University, 88, Sec. 4, Tingchow Road, Taipei 11677 (Taiwan, R.O.C.)
| | - Mei-Chun Yang
- Department of Chemistry, National Taiwan Normal University, 88, Sec. 4, Tingchow Road, Taipei 11677 (Taiwan, R.O.C.)
| | - Lennart Möhlmann
- Department of Chemistry, National Taiwan Normal University, 88, Sec. 4, Tingchow Road, Taipei 11677 (Taiwan, R.O.C.)
| | - Wenwei Lin
- Department of Chemistry, National Taiwan Normal University, 88, Sec. 4, Tingchow Road, Taipei 11677 (Taiwan, R.O.C.).
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33
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Lee CJ, Tsai CC, Hong SH, Chang GH, Yang MC, Möhlmann L, Lin W. Preparation of Furo[3,2-c]coumarins from 3-Cinnamoyl-4-hydroxy-2H-chromen-2-ones and Acyl Chlorides: A Bu3P-Mediated C-Acylation/Cyclization Sequence. Angew Chem Int Ed Engl 2015. [DOI: 10.1002/ange.201502789] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
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34
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Xia Y, Liu Z, Ge R, Xiao Q, Zhang Y, Wang J. Pd-catalyzed cross-coupling of terminal alkynes with ene-yne-ketones: access to conjugated enynes via metal carbene migratory insertion. Chem Commun (Camb) 2015; 51:11233-5. [DOI: 10.1039/c5cc03559g] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Pd-catalyzed oxidative cross-coupling of terminal alkynes with ene-yne-ketones has been developed, in which the ene-yne-ketones are served as carbene precursors and metal carbene migratory insertion process is the key step for C–C bond formation.
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Affiliation(s)
- Ying Xia
- Beijing National Laboratory of Molecular Sciences (BNLMS) and Key Laboratory of Bioorganic Chemistry and Molecular Engineering of Ministry of Education
- College of Chemistry
- Peking University
- Beijing 100871
- China
| | - Zhen Liu
- Beijing National Laboratory of Molecular Sciences (BNLMS) and Key Laboratory of Bioorganic Chemistry and Molecular Engineering of Ministry of Education
- College of Chemistry
- Peking University
- Beijing 100871
- China
| | - Rui Ge
- Beijing National Laboratory of Molecular Sciences (BNLMS) and Key Laboratory of Bioorganic Chemistry and Molecular Engineering of Ministry of Education
- College of Chemistry
- Peking University
- Beijing 100871
- China
| | - Qing Xiao
- Beijing National Laboratory of Molecular Sciences (BNLMS) and Key Laboratory of Bioorganic Chemistry and Molecular Engineering of Ministry of Education
- College of Chemistry
- Peking University
- Beijing 100871
- China
| | - Yan Zhang
- Beijing National Laboratory of Molecular Sciences (BNLMS) and Key Laboratory of Bioorganic Chemistry and Molecular Engineering of Ministry of Education
- College of Chemistry
- Peking University
- Beijing 100871
- China
| | - Jianbo Wang
- Beijing National Laboratory of Molecular Sciences (BNLMS) and Key Laboratory of Bioorganic Chemistry and Molecular Engineering of Ministry of Education
- College of Chemistry
- Peking University
- Beijing 100871
- China
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