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Yu ZQ, Ren H, Guo XW, Yang GG, Wu J, Xi JM, Xiang XY, Fang J, Wu QX. Targeted isolation, identification, and antioxidant evaluation of aromatic polyketides from a plant-derived fungus Ophiobolus cirsii LZU-1509. Fitoterapia 2024; 175:105884. [PMID: 38460855 DOI: 10.1016/j.fitote.2024.105884] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2023] [Revised: 02/27/2024] [Accepted: 03/03/2024] [Indexed: 03/11/2024]
Abstract
There are >350 species of the Ophiobolus genus, which is not yet very well-known and lacks research reports on secondary metabolites. Three new 3,4-benzofuran polyketides 1-3, a new 3,4-benzofuran polyketide racemate 4, two new pairs of polyketide enantiomers (±)-5 and (±)-7, two new acetophenone derivatives 6 and 8, and three novel 1,4-dioxane aromatic polyketides 9-11, were isolated from a fungus Ophiobolus cirsii LZU-1509 derived from an important medicinal and economic crop Anaphalis lactea. The isolation was guided by LC-MS/MS-based GNPS molecular networking analysis. The planar structures and relative configurations were mainly elucidated by NMR and HR-ESI-MS data. Their absolute configurations were determined by using X-ray diffraction analysis and via comparing computational and experimental ECD, NMR, and specific optical rotation data. 9 possesses an unreported 5/6/6/6/5 five-ring framework with a 1,4-dioxane, and 10 and 11 feature unprecedented 6/6/6/5 and 6/6/5/6 four-ring frames containing a 1,4-dioxane. The biosynthetic pathways of 9-11 were proposed. 1-11 were nontoxic in HT-1080 and HepG2 tumor cells at a concentration of 20 μM, whereas 3 and 5 exerted higher antioxidant properties in the hydrogen peroxide-stimulated model in the neuron-like PC12 cells. They could be potential antioxidant agents for neuroprotection.
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Affiliation(s)
- Zhen-Qing Yu
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, PR China
| | - Hao Ren
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, PR China
| | - Xiao-Wei Guo
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, PR China
| | - Ge-Ge Yang
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, PR China
| | - Jia Wu
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, PR China
| | - Jun-Min Xi
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, PR China
| | - Xin-Yu Xiang
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, PR China
| | - Jianguo Fang
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, PR China
| | - Quan-Xiang Wu
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, PR China.
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2
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Stalinskaya AL, Chikunov SY, Pustolaikina IA, Kulakov IV. Cyclization Reaction of 3,5-Diacetyl-2,6-dimethylpyridine with Salicylic Aldehyde and Its Derivatives: Quantum-Chemical Study and Molecular Docking. RUSS J GEN CHEM+ 2022; 92:914-924. [PMID: 35729944 PMCID: PMC9197093 DOI: 10.1134/s107036322205022x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2022] [Revised: 04/29/2022] [Accepted: 05/05/2022] [Indexed: 11/22/2022]
Abstract
Computational study of some details of the cyclization reaction between 3,5-diacetyl-2,6-dimethylpyridine and salicylic aldehyde in an acidic medium was performed by the DFT RB3LYP/6-31G method using the Gaussian-2016 software package. It was shown that protonation of the pyridine nitrogen atom leads to a significant increase in the charge of the hydrogen atom of the 2-methyl group of pyridine and the methyl acetyl group. This leads to the growth of the methyl group CH-acidity and enolization of the acetyl group. It was also found that the protonated tautomeric enol form of 3,5-diacetyl-2,6-dimethylpyridine gives a stable pre-reaction complex with salicylic aldehyde due to the formation of three hydrogen bonds. The formation of this pre-reaction complex, apparently, leads to the implementation of the Knoevenagel reaction, instead of the alternative possible Claisen–Schmidt reaction of salicylic aldehyde at the acetyl group of pyridine. The possible biological activity of the previously obtained cyclization products was evaluated by molecular docking using the AutoDock Vina software. Some cyclization products showed higher values of the binding affinity with the selected target proteins in comparison with the known antiviral drugs Nevirapine and Favipiravir. The results obtained confirm the correctness of the proposed cyclization mechanism between 3,5-diacetyl-2,6-dimethylpyridine and salicylic aldehyde. This also makes it possible to assess the prospects of previously obtained derivatives of epoxybenzo[7,8]oxocino[4,3-b]pyridine as synthetic analogs of natural integrastatins A, B for further synthesis and study of their antiviral activity.
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Affiliation(s)
- A L Stalinskaya
- Institute of Chemistry, Tyumen State University, 625003 Tyumen, Russia
| | - S Y Chikunov
- Institute of Chemistry, Tyumen State University, 625003 Tyumen, Russia
| | | | - I V Kulakov
- Institute of Chemistry, Tyumen State University, 625003 Tyumen, Russia
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3
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El-Assaad TH, Zhu J, Sebastian A, McGrath DV, Neogi I, Parida KN. Dioxiranes: A Half-Century Journey. Org Chem Front 2022. [DOI: 10.1039/d2qo01005d] [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
Dioxiranes are multi-tasking reagents inheriting mild and selective oxygen transfer attributes. These oxidants are accessed from the reaction of ketones with an oxidant and are employed stoichiometrically or catalytically (in...
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4
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Maezono SMB, Khanal HD, Chaudhary P, Devkota S, Lee YR. Construction of Diverse Dihydrodibenzofuranones by Migration/Intramolecular Arylation of Iodonium Ylides. B KOREAN CHEM SOC 2021. [DOI: 10.1002/bkcs.12209] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
| | - Hari Datta Khanal
- School of Chemical Engineering Yeungnam University Gyeongsan 712‐749 Republic of Korea
| | - Priyanka Chaudhary
- School of Chemical Engineering Yeungnam University Gyeongsan 712‐749 Republic of Korea
| | - Shreedhar Devkota
- School of Chemical Engineering Yeungnam University Gyeongsan 712‐749 Republic of Korea
| | - Yong Rok Lee
- School of Chemical Engineering Yeungnam University Gyeongsan 712‐749 Republic of Korea
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5
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Yuan B, Zhou H, Yu Y, Guo X, Zhao Y, Zhang F, Zhou H, Huang H, He R. DFT study on the [4+4] domino cycloaddition of ynones with benzylidenepyrazolones to access eight-membered cyclic ethers: effects of DBUvs.Et3N. NEW J CHEM 2021. [DOI: 10.1039/d0nj04280c] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
The difference in the catalytic activity of bases is primarily attributed to their electron-donating ability (t-BuO−> DBU > Et3N).
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Affiliation(s)
- Binfang Yuan
- Chongqing Key Laboratory of Inorganic Special Functional Materials
- College of Chemistry and Chemical Engineering
- Yangtze Normal University
- Fuling
- China
| | - Huimin Zhou
- Chongqing Key Laboratory of Inorganic Special Functional Materials
- College of Chemistry and Chemical Engineering
- Yangtze Normal University
- Fuling
- China
| | - Youqing Yu
- Green Intelligence Environmental School
- Yangtze Normal University
- Fuling
- China
| | - Xiaogang Guo
- Chongqing Key Laboratory of Inorganic Special Functional Materials
- College of Chemistry and Chemical Engineering
- Yangtze Normal University
- Fuling
- China
| | - Yu Zhao
- Department of Architecture and Environmental Safety
- Chongqing Vocational Insitute of Safety & Technology
- Wanzhou
- China
| | - Fulan Zhang
- Chongqing Key Laboratory of Inorganic Special Functional Materials
- College of Chemistry and Chemical Engineering
- Yangtze Normal University
- Fuling
- China
| | - Haimei Zhou
- Chongqing Key Laboratory of Inorganic Special Functional Materials
- College of Chemistry and Chemical Engineering
- Yangtze Normal University
- Fuling
- China
| | - Huisheng Huang
- Chongqing Key Laboratory of Inorganic Special Functional Materials
- College of Chemistry and Chemical Engineering
- Yangtze Normal University
- Fuling
- China
| | - Rongxing He
- College of Chemistry and Chemical Engineering
- Southwest University
- Beibei
- China
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6
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Kulakov IV, Stalinskaya AL, Chikunov SY, Gatilov YV. Synthesis of new representatives of 11,12-dihydro-5 H-5,11-epoxybenzo[7,8]oxocino[4,3- b]pyridines – structural analogues of integrastatins A, B. NEW J CHEM 2021. [DOI: 10.1039/d0nj06117d] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The reaction of 3,5-diacetyl-2,6-dimethylpyridine with substituted salicylic aldehydes leads to the formation of the epoxybenzooxocine ring. Oxidation of the methylene group with H2SeO3 opens ways to obtaining structural analogs of natural integrastatins A, B.
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Affiliation(s)
- Ivan V. Kulakov
- Institute of Chemistry
- Tyumen State University
- Tyumen 625003
- Russia
| | | | | | - Yuri V. Gatilov
- Siberian Branch of the Russian Academy of Science
- N. N. Vorozhtsov Novosibirsk
- Institute of Organic Chemistry
- Novosibirsk 630090
- Russia
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7
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Yamagiwa Y, Haruna N, Kawakami H, Matsumoto K. Improved and Practical Synthesis of the Integrastatin Core. BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN 2020. [DOI: 10.1246/bcsj.20200070] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Yoshiro Yamagiwa
- Department of Chemistry, Faculty of Science and Engineering, Kindai University, 3-4-1 Kowakae, Higashi-Osaka, Osaka 577-8502, Japan
| | - Nozomi Haruna
- Department of Chemistry, Faculty of Science and Engineering, Kindai University, 3-4-1 Kowakae, Higashi-Osaka, Osaka 577-8502, Japan
| | - Hideki Kawakami
- Department of Chemistry, Faculty of Science and Engineering, Kindai University, 3-4-1 Kowakae, Higashi-Osaka, Osaka 577-8502, Japan
| | - Kouichi Matsumoto
- Department of Chemistry, Faculty of Science and Engineering, Kindai University, 3-4-1 Kowakae, Higashi-Osaka, Osaka 577-8502, Japan
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8
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Wang H, Zeng T, Li X, Wang S, Xiao W, Liu L, Chang W, Li J. Cocatalyst-controlled divergent cascade cycloaddition reaction of arylalkynols and dioxopyrrolidienes: access to spiroketals and oxa-bridged eight-membered cyclic ethers. Org Chem Front 2020. [DOI: 10.1039/d0qo00464b] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
A cocatalyst-controlled divergent cascade cycloaddition reaction was developed for the synthesis of two different complex oxygen-containing heterocyclic compounds from arylalkynols and dioxopyrrolidienes in the presence of Au(i) catalyst.
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Affiliation(s)
- Hongkai Wang
- The State Key Laboratory and Institute of Elemento-Organic Chemistry
- College of Chemistry
- Nankai University
- Tianjin 300071
- P. R. China
| | - Tianlong Zeng
- The State Key Laboratory and Institute of Elemento-Organic Chemistry
- College of Chemistry
- Nankai University
- Tianjin 300071
- P. R. China
| | - Xinhong Li
- The State Key Laboratory and Institute of Elemento-Organic Chemistry
- College of Chemistry
- Nankai University
- Tianjin 300071
- P. R. China
| | - Songmeng Wang
- The State Key Laboratory and Institute of Elemento-Organic Chemistry
- College of Chemistry
- Nankai University
- Tianjin 300071
- P. R. China
| | - Weiguo Xiao
- The State Key Laboratory and Institute of Elemento-Organic Chemistry
- College of Chemistry
- Nankai University
- Tianjin 300071
- P. R. China
| | - Lingyan Liu
- The State Key Laboratory and Institute of Elemento-Organic Chemistry
- College of Chemistry
- Nankai University
- Tianjin 300071
- P. R. China
| | - Weixing Chang
- The State Key Laboratory and Institute of Elemento-Organic Chemistry
- College of Chemistry
- Nankai University
- Tianjin 300071
- P. R. China
| | - Jing Li
- The State Key Laboratory and Institute of Elemento-Organic Chemistry
- College of Chemistry
- Nankai University
- Tianjin 300071
- P. R. China
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9
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Jeong JY, Sperry J, Brimble MA. Synthesis of the Tetracyclic Cores of the Integrastatins, Epicoccolide A and Epicocconigrone A. J Org Chem 2019; 84:11935-11944. [PMID: 31416308 DOI: 10.1021/acs.joc.9b01796] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The integrastatins, epicoccolide A and epicoccongirone A, are natural products containing a unique [6.6.6.6]-tetracyclic core framework that exhibit a broad spectrum of biological activities. A synthesis of the common core of epicoccolide A and epicocconigrone A has been achieved using an umpolung alkylation-lactonization to assemble an isochromanone from which the bridged 1,3-dioxane was readily assembled. A different strategy was required to access the core on the integrastatins; an initial aryllithium addition to an aldehyde, followed by oxidation and treatment of the masked dihydroxyketone with acid gave the desired core structure.
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Affiliation(s)
- Joo Young Jeong
- School of Chemical Sciences , The University of Auckland , 23 Symonds Street, Auckland CBD , Auckland 1010 , New Zealand
| | - Jonathan Sperry
- School of Chemical Sciences , The University of Auckland , 23 Symonds Street, Auckland CBD , Auckland 1010 , New Zealand
| | - Margaret A Brimble
- School of Chemical Sciences , The University of Auckland , 23 Symonds Street, Auckland CBD , Auckland 1010 , New Zealand
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10
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Kise N, Kinameri S, Sakurai T. Reductive coupling of aliphatic cyclic imides and ω-amidoesters with benzophenones by low-valent titanium: Synthesis of 5-diarylmethylene-1,5-dihydropyrrol-2-ones, 6-diarylmethyl-2-pyridones, and ω-(diarylmethylene)lactams. Tetrahedron 2019. [DOI: 10.1016/j.tet.2019.05.013] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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11
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Paymode DJ, Ramana CV. Studies toward the Total Synthesis of Parvifolals A/B: An Intramolecular o-Quinone Methide [4 + 2]-Cycloaddition To Construct the Central Tetracyclic Core. ACS OMEGA 2019; 4:810-818. [PMID: 31459360 PMCID: PMC6648467 DOI: 10.1021/acsomega.8b02777] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/12/2018] [Accepted: 12/26/2018] [Indexed: 06/10/2023]
Abstract
Two different approaches funded upon the intramolecular [4 + 2]-cycloaddition of in situ generated o-quinone methides have been explored to construct the central tetracyclic core of parvifolals A/B. At the outset, a cross-pinacol coupling of 2-formyl tri-O-methyl resveratrol with 4-methoxysalicylaldehyde followed by acid treatment was found to provide the desired tetracyclic core with an internal olefin. The requisite pendant aryl group has been introduced by a Pd-catalyzed direct coupling of corresponding diazonium salt.
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Affiliation(s)
- Dinesh J Paymode
- Division of Organic Chemistry, CSIR-National Chemical Laboratory, Dr. Homi Bhabha Road, Pune 411008, India
- Academy of Scientific and Innovative Research (AcSIR), New Delhi 110 020, India
| | - Chepuri V Ramana
- Division of Organic Chemistry, CSIR-National Chemical Laboratory, Dr. Homi Bhabha Road, Pune 411008, India
- Academy of Scientific and Innovative Research (AcSIR), New Delhi 110 020, India
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12
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Abstract
The total synthesis of the phenolic sesquiterpene onitin using dimethylated indanone as the key intermediate is reported. Key to the success of this synthesis route is the Suzuki-Miyaura cross-coupling reaction of aryl bromide to introduce the vinyl side chain followed by formyl selective Wacker oxidation to generate the aldehyde. The target aldehyde was also obtained in high overall yield via an acid-catalyzed pinacol-pinacolone-type rearrangement of the epoxide. The epoxide was generated from oxidation of a styrene derivative by oxone. Demethylation of the aldehyde followed by chemoselective reduction furnished onitin.
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Affiliation(s)
- Muthiah Suresh
- Centre for Applied Chemistry , Central University of Jharkhand , Brambe , Ranchi 835 205 , India
| | - Anusueya Kumari
- Centre for Applied Chemistry , Central University of Jharkhand , Brambe , Ranchi 835 205 , India
| | - Debjit Das
- Department of Chemistry , Triveni Devi Bhalotia College , Raniganj , West Bengal 713347 , India
| | - Raj Bahadur Singh
- Centre for Applied Chemistry , Central University of Jharkhand , Brambe , Ranchi 835 205 , India
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13
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Reductive coupling of hydantoins with benzophenones by low-valent titanium: Synthesis of 4-substituted 1H-imidazol-2(3H)-ones and unusual two-to-two coupled products. Tetrahedron 2018. [DOI: 10.1016/j.tet.2018.01.022] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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14
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Vo DD, Elofsson M. Synthesis of 4-Formyl-2-arylbenzofuran Derivatives by PdCl(C3H5)dppb-Catalyzed Tandem Sonogashira Coupling-Cyclization under Microwave Irradiation - Application to the Synthesis of Viniferifuran Analogues. ChemistrySelect 2017. [DOI: 10.1002/slct.201701490] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Duy D. Vo
- Department of Chemistry; Umeå University; SE90187 Umeå Sweden
| | - Mikael Elofsson
- Department of Chemistry; Umeå University; SE90187 Umeå Sweden
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Xie Y, List B. Katalytisch-asymmetrische intramolekulare [4+2]-Cycloaddition von in situ generierten ortho
-Chinonmethiden. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201612149] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Youwei Xie
- Max-Planck-Institut für Kohlenforschung; Kaiser-Wilhelm-Platz 1 45470 Mülheim an der Ruhr Deutschland
| | - Benjamin List
- Max-Planck-Institut für Kohlenforschung; Kaiser-Wilhelm-Platz 1 45470 Mülheim an der Ruhr Deutschland
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16
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Xie Y, List B. Catalytic Asymmetric Intramolecular [4+2] Cycloaddition of In Situ Generated ortho
-Quinone Methides. Angew Chem Int Ed Engl 2017; 56:4936-4940. [DOI: 10.1002/anie.201612149] [Citation(s) in RCA: 103] [Impact Index Per Article: 14.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2016] [Indexed: 11/11/2022]
Affiliation(s)
- Youwei Xie
- Max-Planck-Institut für Kohlenforschung; Kaiser-Wilhelm-Platz 1 45470 Mülheim an der Ruhr Germany
| | - Benjamin List
- Max-Planck-Institut für Kohlenforschung; Kaiser-Wilhelm-Platz 1 45470 Mülheim an der Ruhr Germany
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Arcadi A, Chiarini M, Del Vecchio L, Marinelli F, Michelet V. Sequential Silver‐Catalyzed Oxidative Cyclization Reactions of Unprotected 2‐Alkynylanilines to Anthranils. European J Org Chem 2017. [DOI: 10.1002/ejoc.201601600] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Antonio Arcadi
- Dipartimento di Scienze Fisiche e Chimiche Università di L'Aquila Via Vetoio 671010 Coppito AQ Italy
| | - Marco Chiarini
- Facoltà di Bioscienze e Tecnologie Agro‐Alimentari e Ambientali Università di Teramo Via R. Balzarini 1 64100 Teramo (Te) Italy
| | - Luana Del Vecchio
- Dipartimento di Scienze Fisiche e Chimiche Università di L'Aquila Via Vetoio 671010 Coppito AQ Italy
- PSL Research University ChimieParisTech‐CNRS Institut de Recherche de Chimie Paris 11 Rue P&M Curie 75005 Paris France
| | - Fabio Marinelli
- Dipartimento di Scienze Fisiche e Chimiche Università di L'Aquila Via Vetoio 671010 Coppito AQ Italy
| | - Véronique Michelet
- PSL Research University ChimieParisTech‐CNRS Institut de Recherche de Chimie Paris 11 Rue P&M Curie 75005 Paris France
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