1
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Ahmad F, Ranga PK, Fatma S, Vijaya Anand R. Domino Approach to Heterocycles-Based Unsymmetrical Triarylmethanes through Heteroannulation of 2-(2-Enynyl)-pyridines with Enaminones. J Org Chem 2024. [PMID: 39137191 DOI: 10.1021/acs.joc.4c01006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/15/2024]
Abstract
Herein, we report a copper-catalyzed protocol to access unsymmetrical triarylmethanes containing both indolizine and the chromone scaffolds in the same molecule via a 5-endo-dig cyclization of 2-(2-enynyl)-pyridines followed by reaction with 2-hydroxyaryl enaminones. A variety of 2-hydroxyaryl enaminones and 2-(2-enynyl)-pyridines were subjected to reaction under the optimal reaction conditions, and the respective triarylmethanes were obtained in good to excellent yields.
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Affiliation(s)
- Feroz Ahmad
- Department of Chemical Sciences, Indian Institute of Science Education and Research (IISER), Mohali, Sector 81, S.A.S. Nagar, Manauli (PO), Mohali 140306, Punjab, India
| | - Pavit K Ranga
- Department of Chemical Sciences, Indian Institute of Science Education and Research (IISER), Mohali, Sector 81, S.A.S. Nagar, Manauli (PO), Mohali 140306, Punjab, India
| | - Shaheen Fatma
- Department of Chemical Sciences, Indian Institute of Science Education and Research (IISER), Mohali, Sector 81, S.A.S. Nagar, Manauli (PO), Mohali 140306, Punjab, India
| | - Ramasamy Vijaya Anand
- Department of Chemical Sciences, Indian Institute of Science Education and Research (IISER), Mohali, Sector 81, S.A.S. Nagar, Manauli (PO), Mohali 140306, Punjab, India
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2
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Yang W, Wang F, Wang H, Ding D, Jiang S, Zhang G. Platform for the Immobilizing of Ultrasmall Pd Clusters for Carbonylation: In Situ Self-Templating Fabrication of ZIF-8 on ZnO. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024; 20:e2306794. [PMID: 38072816 DOI: 10.1002/smll.202306794] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/08/2023] [Revised: 11/10/2023] [Indexed: 05/03/2024]
Abstract
Incorporating metal clusters into the confined cavities of metal-organic frameworks (MOFs) to form MOF-supported catalysts has attracted considerable research interest with regard to carbonylation reactions. Herein, a self-templating method is used to prepare the zinc oxide (ZnO)-supported core-shell catalyst ZnO@Pd/ZIF-8. This facile strategy controls the growth of metal sources on the ZIF-8 shell layer and avoids the metal diffusion or aggregation problems of the conventional synthesis method. The characteristics of the catalysts show that the palladium (Pd) clusters are highly dispersed with an average particle size of ≈1.2 nm, making them excellent candidates as a catalyst for carbonylation under mild conditions. The optimal catalyst (1.25-ZnO@Pd/ZIF-8) exhibits excellent activity in synthesizing α, β-alkynyl ketones under 1 atm of carbon monooxide (CO), and the conversion rate of 1, 3-diphenylprop-2-yn-1-one is 3.09 and 3.87 times more than those of Pd/ZIF-8 and Pd2+, respectively, for the first 2 h. Moreover, the 1.25-ZnO@Pd/ZIF-8 is recyclable, showing negligible metal leaching, and, under the conditions used in this investigation, can be reused at least five times without considerable loss in its catalytic efficiency. This protocol can also be applied with other nucleophile reagents to synthesize esters, amides, and acid products.
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Affiliation(s)
- Wei Yang
- Institute of Coal Chemistry, State Key Laboratory of Coal Conversion, Chinese Academy of Sciences, Taiyuan, Shanxi, 030001, P. R. China
| | - Fangchao Wang
- Institute of Coal Chemistry, State Key Laboratory of Coal Conversion, Chinese Academy of Sciences, Taiyuan, Shanxi, 030001, P. R. China
| | - He Wang
- The third Military Representative Office in Taiyuan, Taiyuan, Shanxi, 030001, P. R. China
| | - Ding Ding
- Institute of Coal Chemistry, State Key Laboratory of Coal Conversion, Chinese Academy of Sciences, Taiyuan, Shanxi, 030001, P. R. China
| | - Shaohua Jiang
- Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, International Innovation Center for Forest Chemicals and Materials, College of Materials Science and Engineering, Nanjing Forestry University, Nanjing, 210037, P. R. China
| | - Guoying Zhang
- Institute of Coal Chemistry, State Key Laboratory of Coal Conversion, Chinese Academy of Sciences, Taiyuan, Shanxi, 030001, P. R. China
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3
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Zhu ZQ, Hu JY, Xie ZB, Le ZG. Visible-light-enabled cascade cross-dehydrogenative-coupling/cyclization to construct α-chromone substituted α-amino acid derivatives. Chem Commun (Camb) 2023; 60:106-109. [PMID: 38032358 DOI: 10.1039/d3cc04107g] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2023]
Abstract
Organophotocatalytic cascade cross-dehydrogenative-coupling/cyclization reaction of o-hydroxyarylenaminones with α-amino acid derivatives for the construction of α-chromone substituted α-amino acid derivatives was developed. Various N-arylglycine esters, amides and dipeptides underwent the cascade cyclization reaction well with o-hydroxyarylenaminones to afford the corresponding 3-aminoalkyl chromones in good to excellent yields. This approach consists of visible-light-promoted oxidation of α-amino acid derivatives, the Mannich reaction, and intramolecular nucleophilic cyclization under acidic conditions, and features a wide reaction scope, a simple operation and mild reaction conditions, which may have the potential to be used for the synthesis of bioactive molecules.
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Affiliation(s)
- Zhi-Qiang Zhu
- Jiangxi Province Key Laboratory of Synthetic Chemistry, School of Chemistry and Materials Science, East China University of Technology, Nanchang, 330013, China.
| | - Jia-Yu Hu
- Jiangxi Province Key Laboratory of Synthetic Chemistry, School of Chemistry and Materials Science, East China University of Technology, Nanchang, 330013, China.
| | - Zong-Bo Xie
- Jiangxi Province Key Laboratory of Synthetic Chemistry, School of Chemistry and Materials Science, East China University of Technology, Nanchang, 330013, China.
| | - Zhang-Gao Le
- Jiangxi Province Key Laboratory of Synthetic Chemistry, School of Chemistry and Materials Science, East China University of Technology, Nanchang, 330013, China.
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4
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Liu H, Liu H, Wang E, Li L, Luo Z, Cao J, Chen J, Yang L, Yang X. Hydrogen Bond Assisted Three-Component Tandem Reactions to Access N-Alkyl-4-Quinolones. Molecules 2023; 28:molecules28052304. [PMID: 36903552 PMCID: PMC10005641 DOI: 10.3390/molecules28052304] [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: 02/07/2023] [Revised: 02/15/2023] [Accepted: 02/21/2023] [Indexed: 03/06/2023] Open
Abstract
Hydrogen-bonding catalytic reactions have gained great interest. Herein, a hydrogen-bond-assisted three-component tandem reaction for the efficient synthesis of N-alkyl-4-quinolones is described. This novel strategy features the first proof of polyphosphate ester (PPE) as a dual hydrogen-bonding catalyst and the use of readily available starting materials for the preparation of N-alkyl-4-quinolones. The method provides a diversity of N-alkyl-4-quinolones in moderate to good yields. The compound 4h demonstrated good neuroprotective activity against N-methyl-ᴅ-aspartate (NMDA)-induced excitotoxicity in PC12 cells.
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Affiliation(s)
- Huanhuan Liu
- State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Medical University, Guiyang 550014, China
- The Key Laboratory of Chemistry for Natural Products of Guizhou Province and Chinese Academy of Sciences, Guiyang 550014, China
| | - Huadan Liu
- State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Medical University, Guiyang 550014, China
- The Key Laboratory of Chemistry for Natural Products of Guizhou Province and Chinese Academy of Sciences, Guiyang 550014, China
| | - Enhua Wang
- Department of Food and Medicine, Guizhou Vocational College of Agriculture, Qingzhen 551400, China
| | - Liangqun Li
- State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Medical University, Guiyang 550014, China
- The Key Laboratory of Chemistry for Natural Products of Guizhou Province and Chinese Academy of Sciences, Guiyang 550014, China
| | - Zhongsheng Luo
- State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Medical University, Guiyang 550014, China
- The Key Laboratory of Chemistry for Natural Products of Guizhou Province and Chinese Academy of Sciences, Guiyang 550014, China
| | - Jiafu Cao
- State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Medical University, Guiyang 550014, China
- The Key Laboratory of Chemistry for Natural Products of Guizhou Province and Chinese Academy of Sciences, Guiyang 550014, China
| | - Jialin Chen
- State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Medical University, Guiyang 550014, China
- The Key Laboratory of Chemistry for Natural Products of Guizhou Province and Chinese Academy of Sciences, Guiyang 550014, China
| | - Lishou Yang
- State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Medical University, Guiyang 550014, China
- The Key Laboratory of Chemistry for Natural Products of Guizhou Province and Chinese Academy of Sciences, Guiyang 550014, China
- Correspondence: (L.Y.); (X.Y.)
| | - Xiaosheng Yang
- State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Medical University, Guiyang 550014, China
- The Key Laboratory of Chemistry for Natural Products of Guizhou Province and Chinese Academy of Sciences, Guiyang 550014, China
- Correspondence: (L.Y.); (X.Y.)
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5
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Kwesiga G, Greese J, Kelling A, Sperlich E, Schmidt B. The Suzuki-Miyaura Cross-Coupling-Claisen Rearrangement-Cross-Metathesis Approach to Prenylated Isoflavones. J Org Chem 2023; 88:1649-1664. [PMID: 36633349 DOI: 10.1021/acs.joc.2c02698] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
Isoflavones were synthesized via Suzuki-Miyaura coupling of 3-iodochromones and para-methoxybenzene- and para-phenolboronic acid. In our hands, conditions commonly used for similar cross couplings turned out to be unsuccessful or difficult to reproduce, for example, due to the unplanned partial cleavage of MOM-protecting groups. Using Pd(dba)2 as a precatalyst and tricyclohexylphosphine as an activating ligand, reliable cross-coupling conditions were identified. In all cases, notably higher yields of isoflavones were obtained with para-phenolboronic acid than with para-methoxybenzene boronic acid. This observation and the commercial availability of para-phenolboronic acid suggest that for the synthesis of the important 3'-prenyl- or 3',5'-diprenylisoflavone substitution pattern a synthetic route that introduces the prenyl substituents after the Pd-catalyzed cross-coupling step, thereby avoiding laborious and protecting-group-intensive multistep syntheses of C-prenylated arene boronic acids, is advantageous.
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Affiliation(s)
- George Kwesiga
- Universitaet Potsdam, Institut fuer Chemie, Karl-Liebknecht-Straße 24-25, D-14476 Potsdam, Germany.,Department of Chemistry, Kabale University, P.O. Box 317, Kabale, Uganda
| | - Julia Greese
- Universitaet Potsdam, Institut fuer Chemie, Karl-Liebknecht-Straße 24-25, D-14476 Potsdam, Germany
| | - Alexandra Kelling
- Universitaet Potsdam, Institut fuer Chemie, Karl-Liebknecht-Straße 24-25, D-14476 Potsdam, Germany
| | - Eric Sperlich
- Universitaet Potsdam, Institut fuer Chemie, Karl-Liebknecht-Straße 24-25, D-14476 Potsdam, Germany
| | - Bernd Schmidt
- Universitaet Potsdam, Institut fuer Chemie, Karl-Liebknecht-Straße 24-25, D-14476 Potsdam, Germany
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6
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Zhang Y, Liu J, Xing H, Huang Y, Yao Q, Kang T, Guo X. Total synthesis of eucryphin and its glycosylation derivatives. Tetrahedron 2022. [DOI: 10.1016/j.tet.2022.132949] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/15/2022]
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7
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Zhu Z, Hu J, Xie Z, Tang J, Le Z. Visible‐Light‐Enabled Photosensitizer‐ and Additive‐Free Decarboxylative Coupling Cyclization of Enaminone with
N
‐Arylglycine for 3‐Aminoalkyl Chromones. Adv Synth Catal 2022. [DOI: 10.1002/adsc.202200304] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Zhi‐Qiang Zhu
- Jiangxi Province Key Laboratory of Synthetic Chemistry School of Chemistry, Biology and Material Science East China University of Technology Nanchang 330013 People's Republic of China
| | - Jia‐Yu Hu
- Jiangxi Province Key Laboratory of Synthetic Chemistry School of Chemistry, Biology and Material Science East China University of Technology Nanchang 330013 People's Republic of China
| | - Zong‐Bo Xie
- Jiangxi Province Key Laboratory of Synthetic Chemistry School of Chemistry, Biology and Material Science East China University of Technology Nanchang 330013 People's Republic of China
| | - Juan Tang
- Ministry of Education Key Laboratory of Functional Small Organic Molecule Department of Chemistry and chemical engineering Jiangxi Normal University Nanchang 330022 People's Republic of China
| | - Zhang‐Gao Le
- Jiangxi Province Key Laboratory of Synthetic Chemistry School of Chemistry, Biology and Material Science East China University of Technology Nanchang 330013 People's Republic of China
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8
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Synthesis of functionalized flavones from 3-halo-2-(methylthio)-4H-chromen-4-ones. Tetrahedron Lett 2022. [DOI: 10.1016/j.tetlet.2022.153882] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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9
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Çiçek SS, Galarza Pérez M, Wenzel-Storjohann A, Bezerra RM, Segovia JFO, Girreser U, Kanzaki I, Tasdemir D. Antimicrobial Prenylated Isoflavones from the Leaves of the Amazonian Medicinal Plant Vatairea guianensis Aubl. JOURNAL OF NATURAL PRODUCTS 2022; 85:927-935. [PMID: 35271771 DOI: 10.1021/acs.jnatprod.1c01035] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Vatairea guianenis Aubl. (Fabaceae) is an Amazonian medicinal plant species traditionally used for treating skin diseases. In an initial screening, a V. guianensis leaf extract and its subextracts showed antibacterial and antifungal activities. The EtOAc subextract was selected for chemical workup and afforded five known (1-4 and 8) and six undescribed isoflavones, vatairenones C-H (5-7 and 9-11). All isoflavones are prenylated in position C-8, displaying either chain-prenylated (1-7) or ring-closed forms (8-11). The most bioactive compound (3) exhibited in vitro activity against clinically relevant bacteria and fungi with IC50 values ranging from 6.8 to 26.9 μM. Due to its broad antimicrobial activity and low general toxicity, compound 3 is a potential lead compound for structural modifications. The results of the present study support the ethnomedicinal use of V. guianensis in the treatment of dermatological disorders. 1H NMR spectra of some of the isolated compounds showed intricate signal patterns, which might explain repeated errors in assigning the correct structure of the isoflavonoid B-ring in the literature and which we resolved by higher order spectra simulations.
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Affiliation(s)
- Serhat S Çiçek
- Department of Pharmaceutical Biology, Kiel University, Gutenbergstraße 76, 24118 Kiel, Germany
| | - Mayra Galarza Pérez
- Department of Pharmaceutical Biology, Kiel University, Gutenbergstraße 76, 24118 Kiel, Germany
| | - Arlette Wenzel-Storjohann
- GEOMAR Centre for Marine Biotechnology (GEOMAR-Biotech), Research Unit Marine Natural Products Chemistry, GEOMAR Helmholtz Centre for Ocean Research Kiel, Am Kiel-Kanal 44, 24106 Kiel, Germany
| | - Roberto M Bezerra
- Laboratory of Bioprospection and Atomic Absorption, Federal University of Amapá, Rod. JK, Macapá, 68903-419 Amapá, Brazil
| | - Jorge F O Segovia
- Brazilian Agricultural Research Corporation, Ecoregional Research Unit, Rod. JK, Km 5, Macapá, 68903-419 Amapá, Brazil
| | - Ulrich Girreser
- Department of Pharmaceutical and Medicinal Chemistry, Kiel University, Gutenbergstraße 76, 24118 Kiel, Germany
| | - Isamu Kanzaki
- Laboratory of Bioprospection, University of Brasilia, Darcy Ribeiro Campus, 70910-900 Brasilia, DF, Brazil
| | - Deniz Tasdemir
- GEOMAR Centre for Marine Biotechnology (GEOMAR-Biotech), Research Unit Marine Natural Products Chemistry, GEOMAR Helmholtz Centre for Ocean Research Kiel, Am Kiel-Kanal 44, 24106 Kiel, Germany
- Kiel University, Christian-Albrechts-Platz 4, 24118 Kiel, Germany
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10
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Peng Y, Gong H, Wang J, Chen H, Deng H, Hao J, Wan W. Regiospecific C2‐Difluoroalkylation on Chromone via Transition‐Metal‐free Oxidative Decarboxylation of Aryldifluoroacetic acids. ASIAN J ORG CHEM 2022. [DOI: 10.1002/ajoc.202200031] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Yi Peng
- Shanghai University Department of chemistry CHINA
| | - Haiying Gong
- Shanghai University Department of chemistry CHINA
| | - Juan Wang
- Shanghai University Department of chemistry CHINA
| | - Hua Chen
- Shanghai University Department of chemistry CHINA
| | - Hongmei Deng
- Shanghai University laboratory of Microstructures CHINA
| | - Jian Hao
- Shanghai University Department of chemistry CHINA
| | - Wen Wan
- Shanghai University of Science and Technology: Shanghai University Deptartment of Chemistry Shangda Road 99 200444 Shanghai CHINA
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11
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Benny AT, Radhakrishnan EK. Advances in the site-selective C-5, C-3 and C-2 functionalization of chromones via sp 2 C-H activation. RSC Adv 2022; 12:3343-3358. [PMID: 35425362 PMCID: PMC8979368 DOI: 10.1039/d1ra08214k] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2021] [Accepted: 12/22/2021] [Indexed: 02/02/2023] Open
Abstract
In this work, site-selective C-H activation at C-5, C-3 and C-2 positions of chromones for the introduction of structural diversity to the chromone scaffold was studied. The keto group of the chromone moiety acts as the directing group for the selective functionalization of chromones at the C-5 position. Furthermore, the C-H functionalization at the electron-rich C-3 position of the chromone can be achieved using electrophilic coupling partners. The C-H functionalization at the C-2 position can be possible using nucleophilic coupling partners. The direct functionalization methods provide a better pathway for the generation of C-5, C-3 and C-2-substituted chromones with good atom economy than that of classical pre-functionalized reaction protocols.
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12
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Kremsmair A, Hess A, Heinz B, Knochel P. Regioselective Magnesiations and Zincations of Aromatics and Heterocycles Triggered by Lewis Acids. Chemistry 2021; 28:e202103269. [PMID: 34704653 PMCID: PMC9300163 DOI: 10.1002/chem.202103269] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2021] [Indexed: 11/11/2022]
Abstract
Mixed TMP‐bases (TMP=2,2,6,6‐tetramethylpiperidyl), such as TMPMgCl ⋅ LiCl, TMP2Mg ⋅ 2LiCl, TMPZnCl ⋅ LiCl and TMP2Zn ⋅ 2LiCl, are outstanding reagents for the metalation of functionalized aromatics and heterocycles. In the presence of Lewis acids, such as BF3 ⋅ OEt2 or MgCl2, the metalation scope of such bases was dramatically increased, and regioselectivity switches were achieved in the presence or absence of these Lewis acids. Furthermore, highly reactive lithium bases, such as TMPLi or Cy2NLi, are also compatible with various Lewis acids, such as MgCl2 ⋅ 2LiCl, ZnCl2 ⋅ 2LiCl or CuCN ⋅ 2LiCl. Performing such metalations in continuous flow using commercial setups permitted practical and convenient reaction conditions.
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Affiliation(s)
- Alexander Kremsmair
- Ludwig-Maximilians-Universität München: Ludwig-Maximilians-Universitat Munchen, Chemie und Pharmazie, GERMANY
| | - Andreas Hess
- Ludwig-Maximilians-Universität München: Ludwig-Maximilians-Universitat Munchen, Chemie und Pharmazie, GERMANY
| | - Benjamin Heinz
- Ludwig-Maximilians-Universität München: Ludwig-Maximilians-Universitat Munchen, Chemie und Pharamzie, GERMANY
| | - Paul Knochel
- Ludwig-Maximilians-Universitat Munchen, Department of Chemistry, Butenandtstr. 5-13, 81377, München, GERMANY
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13
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Zhang T, Yao W, Wan J, Liu Y. Transition‐Metal‐Free C(
sp
2
)‐H Dithiocarbamation and Chromone Annulation Cascade for 3‐Dithiocarbamyl Chromone Synthesis. Adv Synth Catal 2021. [DOI: 10.1002/adsc.202100617] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Affiliation(s)
- Tao Zhang
- College of Chemistry and Chemical Engineering Jiangxi Normal University Nanchang 330022 People's Republic of China
| | - Weijun Yao
- Department of Chemistry Zhejiang Sci-Tech University Hangzhou 310018 People's Republic of China
| | - Jie‐Ping Wan
- College of Chemistry and Chemical Engineering Jiangxi Normal University Nanchang 330022 People's Republic of China
| | - Yunyun Liu
- College of Chemistry and Chemical Engineering Jiangxi Normal University Nanchang 330022 People's Republic of China
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14
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Yu JT, Li Y, Chen R, Yang Z, Pan C. DTBP-promoted site-selective α-alkoxyl C-H functionalization of alkyl esters: synthesis of 2-alkyl ester substituted chromanones. Org Biomol Chem 2021; 19:4520-4528. [PMID: 33928985 DOI: 10.1039/d1ob00605c] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The direct C-H functionalization of ethyl acetates was developed, delivering a variety of 1-(4-oxochroman-2-yl)ethyl acetate derivatives by reacting with chromones. This reaction has a wide substrate scope with excellent site-selective C-H activation at the inactive α-hydrogen of the alkoxyl group instead of the α-hydrogen of the carbonyl group under radical conditions. Compared with other protocols for the α-alkoxyl C-H functionalization of alkyl esters, a distinguishing feature of this reaction is that no metal catalyst was required, with DTBP as the sole oxidant.
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Affiliation(s)
- Jin-Tao Yu
- School of Petrochemical Engineering, Jiangsu Key Laboratory of Advanced Catalytic Materials & Technology, Changzhou University, Changzhou 213164, P. R. China.
| | - Yiting Li
- School of Petrochemical Engineering, Jiangsu Key Laboratory of Advanced Catalytic Materials & Technology, Changzhou University, Changzhou 213164, P. R. China.
| | - Rongzhen Chen
- School of Petrochemical Engineering, Jiangsu Key Laboratory of Advanced Catalytic Materials & Technology, Changzhou University, Changzhou 213164, P. R. China.
| | - Zixian Yang
- School of Petrochemical Engineering, Jiangsu Key Laboratory of Advanced Catalytic Materials & Technology, Changzhou University, Changzhou 213164, P. R. China.
| | - Changduo Pan
- School of Petrochemical Engineering, Jiangsu Key Laboratory of Advanced Catalytic Materials & Technology, Changzhou University, Changzhou 213164, P. R. China. and School of Chemical and Environmental Engineering, Jiangsu University of Technology, Changzhou 213001, P. R. China
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15
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Chang Y, Liu L, Peng W, Lin L, Chan Y, Tsai F. Stille coupling for the synthesis of isoflavones by a reusable palladium catalyst in water. J CHIN CHEM SOC-TAIP 2021. [DOI: 10.1002/jccs.202000478] [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)
- Ya‐Ting Chang
- Institute of Organic and Polymeric Materials National Taipei University of Technology Taipei Taiwan
| | - Ling‐Jun Liu
- Institute of Organic and Polymeric Materials National Taipei University of Technology Taipei Taiwan
| | - Wen‐Sheng Peng
- Institute of Organic and Polymeric Materials National Taipei University of Technology Taipei Taiwan
| | - Lin‐Ting Lin
- Department of Chemistry National Taiwan University Taipei Taiwan
| | - Yi‐Tsu Chan
- Department of Chemistry National Taiwan University Taipei Taiwan
| | - Fu‐Yu Tsai
- Institute of Organic and Polymeric Materials National Taipei University of Technology Taipei Taiwan
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16
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Yang F, Zhang Y, Hu MQ, Dai KL, Yu LF, Liu T, Tang J. A One-Pot Approach to Construct 3-(2-Methoxypyridin-3-yl)-4H-chromen-4-ones via Meinwald Rearrangement/Intramolecular Demethylation Annulation of Epoxides. HETEROCYCLES 2021. [DOI: 10.3987/com-21-14459] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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17
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Du K, Zhang Z, Sheng W. Copper-Catalyzed the Synthesis of 3-Trifluoromethylchromone via Trifluoromethyl Radical Addition Tandem Cyclization Reaction of 2-Hydroxyphenyl Enaminones. CHINESE J ORG CHEM 2021. [DOI: 10.6023/cjoc202102007] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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18
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Mondal D, Kalar PL, Kori S, Gayen S, Das K. Recent Developments on Synthesis of Indole Derivatives Through Green Approaches and Their Pharmaceutical Applications. CURR ORG CHEM 2020. [DOI: 10.2174/1385272824999201111203812] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Indole moiety is often found in different classes of pharmaceutically active molecules
having various biological activities including anticancer, anti-viral, anti-psychotic, antihypertensive,
anti-migraine, anti-arthritis and analgesic activities. Due to enormous applications
of indole derivatives in pharmaceutical chemistry, a number of conventional synthetic
methods as well as green methodology have been developed for their synthesis. Green methodology
has many advantages including high yields, short reaction time, and inexpensive
reagents, highly efficient and environmentally benign over conventional methods. Currently,
the researchers in academia as well as in pharmaceutical industries have been developing
various methods for the chemical synthesis of indole based compounds via green approaches
to overcome the drawbacks of conventional methods. This review reflects the last ten years
developments of the various greener methods for the synthesis of indole derivatives by using microwave, ionic liquids,
water, ultrasound, nanocatalyst, green catalyst, multicomponent reaction and solvent-free reactions etc. (please
see the scheme below). Furthermore, the applications of green chemistry towards developments of indole containing
pharmaceuticals and their biological studies have been represented in this review.
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Affiliation(s)
- Dipayan Mondal
- Laboratory of Drug Design and Discovery, Department of Pharmaceutical Sciences, Dr. Harisingh Gour University, Sagar, Madhya Pradesh 470003, India
| | - Pankaj Lal Kalar
- Advanced Organic Synthesis Laboratory, Department of Chemistry, Dr. Harisingh Gour University, Sagar, Madhya Pradesh 470003, India
| | - Shivam Kori
- Laboratory of Drug Design and Discovery, Department of Pharmaceutical Sciences, Dr. Harisingh Gour University, Sagar, Madhya Pradesh 470003, India
| | - Shovanlal Gayen
- Laboratory of Drug Design and Discovery, Department of Pharmaceutical Sciences, Dr. Harisingh Gour University, Sagar, Madhya Pradesh 470003, India
| | - Kalpataru Das
- Advanced Organic Synthesis Laboratory, Department of Chemistry, Dr. Harisingh Gour University, Sagar, Madhya Pradesh 470003, India
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19
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Li Z, Feng TT, Zhou Y, Tian YP, Zhou W, Liu XL. [1,5]-Proton transfer as a key strategy: Rapid access to natural product-inspired library of 3-pyrazolyl isoflavones. Tetrahedron 2020. [DOI: 10.1016/j.tet.2020.131436] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
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20
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Balkenhohl M, Jangra H, Makarov IS, Yang S, Zipse H, Knochel P. A Predictive Model Towards Site-Selective Metalations of Functionalized Heterocycles, Arenes, Olefins, and Alkanes using TMPZnCl⋅LiCl. Angew Chem Int Ed Engl 2020; 59:14992-14999. [PMID: 32400069 PMCID: PMC7497272 DOI: 10.1002/anie.202005372] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2020] [Indexed: 01/02/2023]
Abstract
The development of a predictive model towards site-selective deprotometalation reactions using TMPZnCl⋅LiCl is reported (TMP=2,2,6,6-tetramethylpiperidinyl). The pKa values of functionalized N-, S-, and O-heterocycles, arenes, alkenes, or alkanes were calculated and compared to the experimental deprotonation sites. Large overlap (>80 %) between the calculated and empirical deprotonation sites was observed, showing that thermodynamic factors strongly govern the metalation regioselectivity. In the case of olefins, calculated frozen state energies of the deprotonated substrates allowed a more accurate prediction. Additionally, various new N-heterocycles were analyzed and the metalation regioselectivities rationalized using the predictive model.
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Affiliation(s)
- Moritz Balkenhohl
- Department of ChemistryLudwig-Maximilians-Universität MünchenButenandtstr. 5–1381377MunichGermany
| | - Harish Jangra
- Department of ChemistryLudwig-Maximilians-Universität MünchenButenandtstr. 5–1381377MunichGermany
| | - Ilya S. Makarov
- Department of ChemistryLudwig-Maximilians-Universität MünchenButenandtstr. 5–1381377MunichGermany
| | - Shu‐Mei Yang
- Department of ChemistryNational (Taiwan) Normal University88, Sec. 4, Tingchow RoadTaipei11677Taiwan, Republic of China
| | - Hendrik Zipse
- Department of ChemistryLudwig-Maximilians-Universität MünchenButenandtstr. 5–1381377MunichGermany
| | - Paul Knochel
- Department of ChemistryLudwig-Maximilians-Universität MünchenButenandtstr. 5–1381377MunichGermany
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21
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Balkenhohl M, Jangra H, Makarov IS, Yang S, Zipse H, Knochel P. A Predictive Model Towards Site‐Selective Metalations of Functionalized Heterocycles, Arenes, Olefins, and Alkanes using TMPZnCl⋅LiCl. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202005372] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Moritz Balkenhohl
- Department of Chemistry Ludwig-Maximilians-Universität München Butenandtstr. 5–13 81377 Munich Germany
| | - Harish Jangra
- Department of Chemistry Ludwig-Maximilians-Universität München Butenandtstr. 5–13 81377 Munich Germany
| | - Ilya S. Makarov
- Department of Chemistry Ludwig-Maximilians-Universität München Butenandtstr. 5–13 81377 Munich Germany
| | - Shu‐Mei Yang
- Department of Chemistry National (Taiwan) Normal University 88, Sec. 4, Tingchow Road Taipei 11677 Taiwan, Republic of China
| | - Hendrik Zipse
- Department of Chemistry Ludwig-Maximilians-Universität München Butenandtstr. 5–13 81377 Munich Germany
| | - Paul Knochel
- Department of Chemistry Ludwig-Maximilians-Universität München Butenandtstr. 5–13 81377 Munich Germany
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22
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Yu H, Song R, Kong Y, Cao T, Chen Y. Synthesis, crystal structure and spectral properties of a copper(II) complex with flavonoxylacetate ligand. J COORD CHEM 2020. [DOI: 10.1080/00958972.2020.1755035] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Affiliation(s)
- Hui Yu
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha, Hunan, China
| | - Rong Song
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha, Hunan, China
| | - Yangyang Kong
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha, Hunan, China
| | - Ting Cao
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha, Hunan, China
| | - Yun Chen
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha, Hunan, China
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23
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Tang L, Yang Q, Zhang J, Deng G. Regioselective Reversal Cyclization To Access either Eight-Membered Sulfur-Containing Heterocycle-Fused γ-Pyrones or 2-(1,4-Dithianyl)-4-pyrones from the Same Precursors. J Org Chem 2020; 85:2575-2584. [PMID: 31928008 DOI: 10.1021/acs.joc.9b03303] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A regioselective reverse strategy for the construction of eight-membered sulfur-containing heterocycle-fused γ-pyrones and 2-(1,4-dithianyl)-4-pyrones starting from 2-diazo-γ-pyrones and dithioacetals was achieved for the first time. The process combines C-S bond formation via sulfur ylides and C-C bond formation via electron transfer to afford the target molecules in a facile manner with 100% regioselectivity and in excellent isolated yields (up to 90%).
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Affiliation(s)
- Ling Tang
- Key Laboratory of Chemical Biology and Traditional Chinese Medicine Research (Ministry of Education of China) , Hunan Normal University , Changsha 410081 , China.,Key Laboratory of the Assembly and Application of Organic Functional Molecules of Hunan Province , Hunan Normal University , Changsha 410081 , China
| | - Qin Yang
- Key Laboratory of Chemical Biology and Traditional Chinese Medicine Research (Ministry of Education of China) , Hunan Normal University , Changsha 410081 , China.,Key Laboratory of the Assembly and Application of Organic Functional Molecules of Hunan Province , Hunan Normal University , Changsha 410081 , China
| | - Jianfang Zhang
- Key Laboratory of Chemical Biology and Traditional Chinese Medicine Research (Ministry of Education of China) , Hunan Normal University , Changsha 410081 , China.,Key Laboratory of the Assembly and Application of Organic Functional Molecules of Hunan Province , Hunan Normal University , Changsha 410081 , China
| | - Guisheng Deng
- Key Laboratory of Chemical Biology and Traditional Chinese Medicine Research (Ministry of Education of China) , Hunan Normal University , Changsha 410081 , China.,Key Laboratory of the Assembly and Application of Organic Functional Molecules of Hunan Province , Hunan Normal University , Changsha 410081 , China
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24
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Liang K, Li T, Li N, Zhang Y, Shen L, Ma Z, Xia C. Redox-neutral photochemical Heck-type arylation of vinylphenols activated by visible light. Chem Sci 2020; 11:2130-2135. [PMID: 34123301 PMCID: PMC8150107 DOI: 10.1039/c9sc06184c] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2019] [Accepted: 01/10/2020] [Indexed: 12/12/2022] Open
Abstract
Disclosed herein is a photochemical Heck-type arylation of vinylphenols with non-activated aryl and heteroaryl halides under visible light irradiation. Preliminary mechanistic studies suggested that the colored vinylphenolate anions acted as a strong reducing photoactivator to directly activate (hetero)aryl halides without the need for any sacrificial reductants. The photochemically generated aryl radicals coupled with another molecule of vinylphenol to afford the Heck-type arylation product in a regiospecific and stereoselective manner. The developed photochemical arylation protocol showed exceptional functional group tolerance and was successfully applied in the challenging late-stage modification of natural products without any protection-deprotection procedures.
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Affiliation(s)
- Kangjiang Liang
- Key Laboratory of Medicinal Chemistry for Natural Resource (Ministry of Education and Yunnan Province), State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, School of Chemical Science and Technology, Library of Yunnan University, Yunnan University 2 North Cuihu Road Kunming 650091 China
| | - Tao Li
- Key Laboratory of Medicinal Chemistry for Natural Resource (Ministry of Education and Yunnan Province), State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, School of Chemical Science and Technology, Library of Yunnan University, Yunnan University 2 North Cuihu Road Kunming 650091 China
| | - Na Li
- Key Laboratory of Medicinal Chemistry for Natural Resource (Ministry of Education and Yunnan Province), State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, School of Chemical Science and Technology, Library of Yunnan University, Yunnan University 2 North Cuihu Road Kunming 650091 China
| | - Yang Zhang
- Key Laboratory of Medicinal Chemistry for Natural Resource (Ministry of Education and Yunnan Province), State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, School of Chemical Science and Technology, Library of Yunnan University, Yunnan University 2 North Cuihu Road Kunming 650091 China
| | - Lei Shen
- Key Laboratory of Medicinal Chemistry for Natural Resource (Ministry of Education and Yunnan Province), State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, School of Chemical Science and Technology, Library of Yunnan University, Yunnan University 2 North Cuihu Road Kunming 650091 China
| | - Zhixian Ma
- Key Laboratory of Medicinal Chemistry for Natural Resource (Ministry of Education and Yunnan Province), State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, School of Chemical Science and Technology, Library of Yunnan University, Yunnan University 2 North Cuihu Road Kunming 650091 China
| | - Chengfeng Xia
- Key Laboratory of Medicinal Chemistry for Natural Resource (Ministry of Education and Yunnan Province), State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, School of Chemical Science and Technology, Library of Yunnan University, Yunnan University 2 North Cuihu Road Kunming 650091 China
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25
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Lin Y, Wan JP, Liu Y. Synthesis of 3-halochromones with simple KX halogen sources enabled by in situ halide oxidation. NEW J CHEM 2020. [DOI: 10.1039/d0nj00825g] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
An in situ oxidation strategy for generating molecular halogen has been developed for the synthesis of 3-halochromones by employing simple potassium halides as halogen sources.
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Affiliation(s)
- Yan Lin
- College of Chemistry and Chemical Engineering, Jiangxi Normal University
- Nanchang 330022
- P. R. China
| | - Jie-Ping Wan
- College of Chemistry and Chemical Engineering, Jiangxi Normal University
- Nanchang 330022
- P. R. China
| | - Yunyun Liu
- College of Chemistry and Chemical Engineering, Jiangxi Normal University
- Nanchang 330022
- P. R. China
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26
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Liu J, Ba D, Chen Y, Wen S, Cheng G. Synthesis of 3-(2-quinolyl) chromones from ynones and quinoline N-oxides via tandem reactions under transition metal- and additive-free conditions. Chem Commun (Camb) 2020; 56:4078-4081. [DOI: 10.1039/c9cc09460a] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
The synthesis of 3-(2-quinolyl) chromones from ynones and quinoline N-oxides via a sequential [3+2] cycloaddition/ring-opening/O-arylation reaction under transition metal- and additive-free conditions is reported.
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Affiliation(s)
- Jing Liu
- College of Materials Science & Engineering
- Huaqiao University
- Xiamen 361021
- China
| | - Dan Ba
- College of Materials Science & Engineering
- Huaqiao University
- Xiamen 361021
- China
| | - Yanhui Chen
- College of Materials Science & Engineering
- Huaqiao University
- Xiamen 361021
- China
| | - Si Wen
- College of Materials Science & Engineering
- Huaqiao University
- Xiamen 361021
- China
| | - Guolin Cheng
- College of Materials Science & Engineering
- Huaqiao University
- Xiamen 361021
- China
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27
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Yu Q, Liu Y, Wan JP. Transition metal-free synthesis of 3-trifluoromethyl chromones via tandem C–H trifluoromethylation and chromone annulation of enaminones. Org Chem Front 2020. [DOI: 10.1039/d0qo00855a] [Citation(s) in RCA: 37] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
The synthesis of 3-trifluoromethyl chromones has been realized via transition metal-free reactions of o-hydroxyphenyl enaminones and the Langlois reagent via cascade C–H trifluoromethylation and chromone annulation.
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Affiliation(s)
- Qing Yu
- College of Chemistry and Chemical Engineering
- Jiangxi Normal University
- Nanchang 330022
- P. R. China
| | - Yunyun Liu
- College of Chemistry and Chemical Engineering
- Jiangxi Normal University
- Nanchang 330022
- P. R. China
| | - Jie-Ping Wan
- College of Chemistry and Chemical Engineering
- Jiangxi Normal University
- Nanchang 330022
- P. R. China
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28
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Mkrtchyan S, Iaroshenko VO. Visible-light-mediated arylation of ortho-hydroxyarylenaminones: direct access to isoflavones. Chem Commun (Camb) 2020; 56:2606-2609. [DOI: 10.1039/c9cc09945j] [Citation(s) in RCA: 37] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
The first visible-light-promoted direct synthesis of isoflavones following the arylation of ortho-hydroxyarylenaminones by aryl onium salts was developed.
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Affiliation(s)
- Satenik Mkrtchyan
- Laboratory of Homogeneous Catalysis and Molecular Design at the Centre of Molecular and Macromolecular Studies
- Polish Academy of Sciences
- PL-90-363 Łodź
- Poland
| | - Viktor O. Iaroshenko
- Laboratory of Homogeneous Catalysis and Molecular Design at the Centre of Molecular and Macromolecular Studies
- Polish Academy of Sciences
- PL-90-363 Łodź
- Poland
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29
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Liu J, Ba D, Lv W, Chen Y, Zhao Z, Cheng G. Base‐Promoted Michael Addition/Smiles Rearrangement/
N
‐Arylation Cascade: One‐Step Synthesis of 1,2,3‐Trisubstituted 4‐Quinolones from Ynones and Sulfonamides. Adv Synth Catal 2019. [DOI: 10.1002/adsc.201900960] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Jing Liu
- College of Materials Science & EngineeringHuaqiao University Xiamen 361021 People's Republic of China
| | - Dan Ba
- College of Materials Science & EngineeringHuaqiao University Xiamen 361021 People's Republic of China
| | - Weiwei Lv
- College of Materials Science & EngineeringHuaqiao University Xiamen 361021 People's Republic of China
| | - Yanhui Chen
- College of Materials Science & EngineeringHuaqiao University Xiamen 361021 People's Republic of China
| | - Zemin Zhao
- College of Materials Science & EngineeringHuaqiao University Xiamen 361021 People's Republic of China
| | - Guolin Cheng
- College of Materials Science & EngineeringHuaqiao University Xiamen 361021 People's Republic of China
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30
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Kunyane P, Sonopo MS, Selepe MA. Synthesis of Isoflavones by Tandem Demethylation and Ring-Opening/Cyclization of Methoxybenzoylbenzofurans. JOURNAL OF NATURAL PRODUCTS 2019; 82:3074-3082. [PMID: 31702151 DOI: 10.1021/acs.jnatprod.9b00681] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
The unexpected conversion of benzoylbenzofurans into isoflavones through an intramolecular cascade that involves deprotection and ring-opening/cyclization is described. This was discovered in an investigation of the possible transformation of benzoylbenzofurans into coumaronochromones. This route affords isoflavones in two major steps from acetophenones and benzoquinones. The transformation was validated by synthesizing differently substituted isoflavone derivatives and further applied to a concise synthesis of a potential anticancer lead compound, glaziovianin A (1).
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Affiliation(s)
- Phaladi Kunyane
- Department of Chemistry , University of Pretoria , Lynnwood Road , Hatfield , Pretoria 0002 , South Africa
| | - Molahlehi S Sonopo
- Radiochemistry , South African Nuclear Energy Corporation (Necsa) , Pelindaba , Brits 0240 , South Africa
| | - Mamoalosi A Selepe
- Department of Chemistry , University of Pretoria , Lynnwood Road , Hatfield , Pretoria 0002 , South Africa
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31
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Cheng D, Wang M, Deng Z, Yan X, Xu X, Yan J. 2,3-Dichloro-5,6-dicyano-1,4-benzoquinone Mediated Tandem Oxidative-Coupling/Annulation of Enaminones with 1,3-Diarylpropenes for the Synthesis of 3-Allylchromones. European J Org Chem 2019. [DOI: 10.1002/ejoc.201900793] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Affiliation(s)
- Dongping Cheng
- College of Pharmaceutical Science; Zhejiang University of Technology; 18 Chaowang Road 310014 Hangzhou Zhejiang P. R. China
| | - Mingliang Wang
- College of Pharmaceutical Science; Zhejiang University of Technology; 18 Chaowang Road 310014 Hangzhou Zhejiang P. R. China
| | - Zhiteng Deng
- College of Pharmaceutical Science; Zhejiang University of Technology; 18 Chaowang Road 310014 Hangzhou Zhejiang P. R. China
| | - Xianhang Yan
- College of Pharmaceutical Science; Zhejiang University of Technology; 18 Chaowang Road 310014 Hangzhou Zhejiang P. R. China
| | - Xiaoliang Xu
- College of Chemical Engineering; Zhejiang University of Technology; 18 Chaowang Road 310014 Hangzhou Zhejiang P. R. China
| | - Jizhong Yan
- College of Pharmaceutical Science; Zhejiang University of Technology; 18 Chaowang Road 310014 Hangzhou Zhejiang P. R. China
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32
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Ghosh P, Das S. Synthesis and Functionalization of 4-Quinolones - A Progressing Story. European J Org Chem 2019. [DOI: 10.1002/ejoc.201900452] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Prasanjit Ghosh
- Department of Chemistry; University of North Bengal; 734013 Darjeeling West Bengal India
| | - Sajal Das
- Department of Chemistry; University of North Bengal; 734013 Darjeeling West Bengal India
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33
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Brůža Z, Kratochvíl J, Harvey JN, Rulíšek L, Nováková L, Maříková J, Kuneš J, Kočovský P, Pour M. A New Insight into the Stereoelectronic Control of the Pd
0
‐Catalyzed Allylic Substitution: Application for the Synthesis of Multisubstituted Pyran‐2‐ones via an Unusual 1,3‐Transposition. Chemistry 2019; 25:8053-8060. [DOI: 10.1002/chem.201900323] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2019] [Revised: 03/15/2019] [Indexed: 11/12/2022]
Affiliation(s)
- Zbyněk Brůža
- Department of Organic and Bioorganic ChemistryFaculty of PharmacyCharles University Hradec Králové 50005 Czech Republic
| | - Jiří Kratochvíl
- Department of Organic and Bioorganic ChemistryFaculty of PharmacyCharles University Hradec Králové 50005 Czech Republic
| | - Jeremy N. Harvey
- Department of ChemistryKatholieke Universiteit, Leuven 3001 Leuven Belgium
| | - Lubomír Rulíšek
- Institute of Organic Chemistry and BiochemistryCzech Academy of Sciences 16610 Prague 6 Czech Republic
| | - Lucie Nováková
- Department of Analytical ChemistryFaculty of PharmacyCharles University Hradec Králové 50005 Czech Republic
| | - Jana Maříková
- Department of Organic and Bioorganic ChemistryFaculty of PharmacyCharles University Hradec Králové 50005 Czech Republic
| | - Jiří Kuneš
- Department of Organic and Bioorganic ChemistryFaculty of PharmacyCharles University Hradec Králové 50005 Czech Republic
| | - Pavel Kočovský
- Department of Organic and Bioorganic ChemistryFaculty of PharmacyCharles University Hradec Králové 50005 Czech Republic
- Department of Organic Chemistry, Faculty of Natural, SciencesCharles University 12843 Prague 2 Czech Republic
| | - Milan Pour
- Department of Organic and Bioorganic ChemistryFaculty of PharmacyCharles University Hradec Králové 50005 Czech Republic
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34
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Fu L, Wan J. C3‐Functionalized Chromones Synthesis by Tandem C−H Elaboration and Chromone Annulation of Enaminones. ASIAN J ORG CHEM 2019. [DOI: 10.1002/ajoc.201900196] [Citation(s) in RCA: 52] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Leiqing Fu
- College of Chemistry and Chemical EngineeringJiangxi Normal University Nanchang 330022 P. R. China
| | - Jie‐Ping Wan
- College of Chemistry and Chemical EngineeringJiangxi Normal University Nanchang 330022 P. R. China
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35
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Shen C, Wang A, Xu J, An Z, Loh KY, Zhang P, Liu X. Recent Advances in the Catalytic Synthesis of 4-Quinolones. Chem 2019. [DOI: 10.1016/j.chempr.2019.01.006] [Citation(s) in RCA: 34] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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36
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Wan J, Tu Z, Wang Y. Transient and Recyclable Halogenation Coupling (TRHC) for Isoflavonoid Synthesis with Site‐Selective Arylation. Chemistry 2019; 25:6907-6910. [DOI: 10.1002/chem.201901025] [Citation(s) in RCA: 43] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2019] [Revised: 04/07/2019] [Indexed: 11/09/2022]
Affiliation(s)
- Jie‐Ping Wan
- College of Chemistry and Chemical EngineeringJiangxi Normal University Nanchang 330022 P. R. China
| | - Zhi Tu
- College of Chemistry and Chemical EngineeringJiangxi Normal University Nanchang 330022 P. R. China
| | - Yuyun Wang
- College of Chemistry and Chemical EngineeringJiangxi Normal University Nanchang 330022 P. R. China
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37
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Recent applications of magnesium- and Zinc-TMP amides in the synthesis of bioactive targets. Tetrahedron 2019. [DOI: 10.1016/j.tet.2018.12.018] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
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38
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Li J, Tan E, Keller N, Chen YH, Zehetmaier PM, Jakowetz AC, Bein T, Knochel P. Cobalt-Catalyzed Electrophilic Aminations with Anthranils: An Expedient Route to Condensed Quinolines. J Am Chem Soc 2018; 141:98-103. [PMID: 30558415 PMCID: PMC6400427 DOI: 10.1021/jacs.8b11466] [Citation(s) in RCA: 64] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
![]()
The
reaction of various organozinc pivalates with anthranils provides
anilines derivatives, which cyclize under acidic conditions providing
condensed quinolines. Using alkenylzinc pivalates, electron-rich arylzinc
pivalates or heterocyclic zinc pivalates produces directly the condensed
quinolines of which several structures belong to new heterocyclic
scaffolds. These N-heterocycles are of particular interest for organic
light emitting diodes with their high photoluminescence quantum yields
and long exciton lifetimes as well as for hole-transporting materials
in methylammonium lead iodide perovskites solar cells due to an optimal
band alignment for holes and a large bandgap.
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Affiliation(s)
- Jie Li
- Department Chemie , Ludwig-Maximilians-Universität München , Butenandtstraße 5-13, Haus F , 81377 Munich , Germany.,School of Pharmaceutical Science , Jiangnan University , Lihu Road 1800 , 214122 Wuxi , Jiangsu , China
| | - Eric Tan
- Department Chemie , Ludwig-Maximilians-Universität München , Butenandtstraße 5-13, Haus F , 81377 Munich , Germany
| | - Niklas Keller
- Department Chemie , Ludwig-Maximilians-Universität München , Butenandtstraße 5-13, Haus F , 81377 Munich , Germany
| | - Yi-Hung Chen
- Department Chemie , Ludwig-Maximilians-Universität München , Butenandtstraße 5-13, Haus F , 81377 Munich , Germany
| | - Peter M Zehetmaier
- Department Chemie , Ludwig-Maximilians-Universität München , Butenandtstraße 5-13, Haus F , 81377 Munich , Germany
| | - Andreas C Jakowetz
- Department Chemie , Ludwig-Maximilians-Universität München , Butenandtstraße 5-13, Haus F , 81377 Munich , Germany
| | - Thomas Bein
- Department Chemie , Ludwig-Maximilians-Universität München , Butenandtstraße 5-13, Haus F , 81377 Munich , Germany
| | - Paul Knochel
- Department Chemie , Ludwig-Maximilians-Universität München , Butenandtstraße 5-13, Haus F , 81377 Munich , Germany
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39
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Kumar A, Rao MLN. Pot-economic synthesis of diarylpyrazoles and pyrimidines involving Pd-catalyzed cross-coupling of 3-trifloxychromone and triarylbismuth. J CHEM SCI 2018. [DOI: 10.1007/s12039-018-1565-6] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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40
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41
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Park GE, Maezono SMB, Ha JH, Shim JJ, Kim SH, Lee YR. Transition-Metal-Free Regioselective Construction of Diverse 3-Carbonyl Functionalized 4-PyronesviaThermal Wolff-Rearrangement of Diazodicarbonyls. Adv Synth Catal 2018. [DOI: 10.1002/adsc.201800874] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Ga Eul Park
- School of Chemical Engineering; Yeungnam University; Gyeongsan 712-749 Republic of Korea
| | | | - Ji Hyeon Ha
- School of Chemical Engineering; Yeungnam University; Gyeongsan 712-749 Republic of Korea
| | - Jae-Jin Shim
- School of Chemical Engineering; Yeungnam University; Gyeongsan 712-749 Republic of Korea
| | - Sung Hong Kim
- Analysis Research Division; Daegu Center; Korea Basic Science Institute; Daegu 41566 Republic of Korea
| | - Yong Rok Lee
- School of Chemical Engineering; Yeungnam University; Gyeongsan 712-749 Republic of Korea
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42
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Synthesis, molecular docking and inhibition studies of novel 3-N-aryl substituted-2-heteroarylchromones targeting microtubule affinity regulating kinase 4 inhibitors. Eur J Med Chem 2018; 159:166-177. [PMID: 30290280 DOI: 10.1016/j.ejmech.2018.09.030] [Citation(s) in RCA: 37] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2018] [Revised: 08/11/2018] [Accepted: 09/10/2018] [Indexed: 12/27/2022]
Abstract
A series of 3-N-aryl substituted-2-heteroarylchromones was efficiently synthesized via Pd-mediated oxidative coupling under the influence of hetero-atoms neighboring group participation. Synthesized molecules were evaluated against human microtubule affinity regulating kinase 4 (MARK4) enzyme inhibitors, a recently identified anti-cancer drug target. Among 21 synthesized molecules, compounds 2, 3, and 14 exhibited excellent in vitro inhibitory effect against MARK4 with IC50 value (50% of ATPase activity) at 2.12 ± 0.22 μM, 1.98 ± 0.34 μM and 5.56 ± 0.42 μM respectively. The fluorescence binding and dot blot assay of these compounds were found in μM range, indicating a better binding affinity. In vitro study of these compounds against cancerous cells (MCF-7 and HepG2) inhibited the cell viability, induced apoptosis and lowered the tau-phosphorylation. Cell viability studies of compounds 2, 3, and 14 showed inhibition of cancerous cells growth with IC50 values of 3.22 ± 0.42, 4.32 ± 0.23 μM and 16.22 ± 1.33 μM for human breast cancer cells (MCF-7) and 6.45 ± 1.12, 5.22 ± 0.72 μM and 19.12 ± 1.43 μM for human liver carcinoma cells (HepG2) respectively. ROS quantification of these compounds showed oxidative stress to cancerous cells and molecular docking study showed hydrogen bonding, charge or polar and van der Waals interactions with the active site residues of MARK4. Owning to high binding fit nicely in the active site, offering the possibilities to be used as novel therapeutic molecules in the drug discovery against MARK4-related diseases.
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43
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Bass SA, Parker DM, Bellinger TJ, Eaton AS, Dibble AS, Koroma KL, Sekyi SA, Pollard DA, Guo F. Development of Conjugate Addition of Lithium Dialkylcuprates to Thiochromones: Synthesis of 2-Alkylthiochroman-4-ones and Additional Synthetic Applications. Molecules 2018; 23:E1728. [PMID: 30011953 PMCID: PMC6099951 DOI: 10.3390/molecules23071728] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2018] [Revised: 07/05/2018] [Accepted: 07/13/2018] [Indexed: 12/05/2022] Open
Abstract
Lithium dialkylcuprates undergo conjugate addition to thiochromones to afford 2-alkylthiochroman-4-ones in good yields. This approach provide an efficient and general synthetic approach to privileged sulfur-containing structural motifs and valuable precursors for many pharmaceuticals, starting from common substrates-thiochromones. Good yields of 2-alkyl-substituted thiochroman-4-ones are attained with lithium dialkylcuprates, lithium alkylcyanocuprates or substoichiometric amount of copper salts. The use of commercially available inexpensive alkyllithium reagents will expedite the synthesis of a large library of 2-alkyl substituted thiochroman-4-ones for additional synthetic applications.
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Affiliation(s)
- Shekinah A Bass
- Department of Chemistry, Winston Salem State University, 601 S. Martin Luther King Jr. Dr., Winston Salem, NC 27110, USA.
| | - Dynasty M Parker
- Department of Chemistry, Winston Salem State University, 601 S. Martin Luther King Jr. Dr., Winston Salem, NC 27110, USA.
| | - Tania J Bellinger
- Department of Chemistry, Winston Salem State University, 601 S. Martin Luther King Jr. Dr., Winston Salem, NC 27110, USA.
| | - Aireal S Eaton
- Department of Chemistry, Winston Salem State University, 601 S. Martin Luther King Jr. Dr., Winston Salem, NC 27110, USA.
| | - Angelica S Dibble
- Department of Chemistry, Winston Salem State University, 601 S. Martin Luther King Jr. Dr., Winston Salem, NC 27110, USA.
| | - Kaata L Koroma
- Department of Chemistry, Winston Salem State University, 601 S. Martin Luther King Jr. Dr., Winston Salem, NC 27110, USA.
| | - Sylvia A Sekyi
- Department of Chemistry, Winston Salem State University, 601 S. Martin Luther King Jr. Dr., Winston Salem, NC 27110, USA.
| | - David A Pollard
- Department of Chemistry, Winston Salem State University, 601 S. Martin Luther King Jr. Dr., Winston Salem, NC 27110, USA.
| | - Fenghai Guo
- Department of Chemistry, Winston Salem State University, 601 S. Martin Luther King Jr. Dr., Winston Salem, NC 27110, USA.
- Biomedical Research Infrastructure Center, Winston Salem State University, Winston Salem, NC 27110, USA.
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44
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Ziegler DS, Greiner R, Lumpe H, Kqiku L, Karaghiosoff K, Knochel P. Directed Zincation or Magnesiation of the 2-Pyridone and 2,7-Naphthyridone Scaffold Using TMP Bases. Org Lett 2018; 19:5760-5763. [PMID: 29039957 DOI: 10.1021/acs.orglett.7b02690] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
A regioselective zincation of the 2-pyridone and 2,7-naphthyridone scaffolds has been developed. Zincations of the methoxyethoxymethyl (MEM)-protected compounds using TMP2Zn·2MgCl2·2LiCl (TMP = 2,2,6,6-tetramethylpiperidyl) followed by trapping with electrophiles provided functionalized 2-pyridones and 2,7-naphthyridones. I/Mg exchange of iodinated 2-pyridone and 2,7-naphthyridone using i-PrMgCl·LiCl afforded magnesiated intermediates that reacted with electrophiles. A second magnesiation of the 2-pyridone scaffold was achieved by using TMPMgCl·LiCl. Additionally, we report CoCl2-catalyzed cross-couplings of the 1-chloro-2,7-naphthyridines with arylzinc halides.
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Affiliation(s)
- Dorothée S Ziegler
- Department of Chemistry, Ludwig-Maximilians-University Munich , Butenandtstr. 5-13, 81377 Munich, Germany
| | - Robert Greiner
- Department of Chemistry, Ludwig-Maximilians-University Munich , Butenandtstr. 5-13, 81377 Munich, Germany
| | - Henning Lumpe
- Department of Chemistry, Ludwig-Maximilians-University Munich , Butenandtstr. 5-13, 81377 Munich, Germany
| | - Laura Kqiku
- Department of Chemistry, Ludwig-Maximilians-University Munich , Butenandtstr. 5-13, 81377 Munich, Germany
| | - Konstantin Karaghiosoff
- Department of Chemistry, Ludwig-Maximilians-University Munich , Butenandtstr. 5-13, 81377 Munich, Germany
| | - Paul Knochel
- Department of Chemistry, Ludwig-Maximilians-University Munich , Butenandtstr. 5-13, 81377 Munich, Germany
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45
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Hajipour AR, Khorsandi Z, Fakhari F, Mortazavi M, Farrokhpour H. A Comparative Study between Co‐ and CoFe
2
O
4
‐NPs Catalytic Activities in Synthesis of Flavone Derivatives; Study of Their Interactions with Estrogen Receptor by Molecular Docking. ChemistrySelect 2018. [DOI: 10.1002/slct.201702702] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Affiliation(s)
- Abdol R. Hajipour
- Department of ChemistryIsfahan University of Technology Isfahan 84156 Iran
- Department of NeuroscienceUniversity of WisconsinMedical School, Madison WI53706-1532 USA
| | - Zahra Khorsandi
- Department of ChemistryIsfahan University of Technology Isfahan 84156 Iran
| | - Farzaneh Fakhari
- Department of ChemistryIsfahan University of Technology Isfahan 84156 Iran
| | - Maryam Mortazavi
- Department of Chemical industryfaculty of Shiraz daughters branchtrchnical and vocational university (TVU) Shiraz 71454 Iran
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46
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Kang D, Ahn K, Hong S. Site-Selective C−H Bond Functionalization of Chromones and Coumarins. ASIAN J ORG CHEM 2018. [DOI: 10.1002/ajoc.201800128] [Citation(s) in RCA: 36] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Dahye Kang
- Department of Chemistry; Korea Advanced Institute of Science and Technology (KAIST); Daejeon Korea
- Center for Catalytic Hydrocarbon Functionalizations; Institute for Basic Science (IBS); Daejeon Korea
| | - Kukcheol Ahn
- Department of Chemistry; Korea Advanced Institute of Science and Technology (KAIST); Daejeon Korea
- Center for Catalytic Hydrocarbon Functionalizations; Institute for Basic Science (IBS); Daejeon Korea
| | - Sungwoo Hong
- Department of Chemistry; Korea Advanced Institute of Science and Technology (KAIST); Daejeon Korea
- Center for Catalytic Hydrocarbon Functionalizations; Institute for Basic Science (IBS); Daejeon Korea
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47
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Otsuka S, Yorimitsu H. Synthesis of 4-aryl- and 4-acyl-1,3-dithiole-2-thiones via deprotonative zincation of 1,3-dithiole-2-thione. HETEROATOM CHEMISTRY 2018. [DOI: 10.1002/hc.21432] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Shinya Otsuka
- Department of Chemistry; Graduate School of Science; Kyoto University; Kyoto Japan
| | - Hideki Yorimitsu
- Department of Chemistry; Graduate School of Science; Kyoto University; Kyoto Japan
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48
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Affiliation(s)
- Avinash M. Patil
- Department of Chemistry, The Centre for Advanced Studies, Savitribai Phule Pune University, Pune, Maharashtra, India
| | - Dayanand A. Kamble
- Department of Chemistry, The Centre for Advanced Studies, Savitribai Phule Pune University, Pune, Maharashtra, India
| | - Pradeep D. Lokhande
- Department of Chemistry, The Centre for Advanced Studies, Savitribai Phule Pune University, Pune, Maharashtra, India
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49
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Golshani M, Khoobi M, Jalalimanesh N, Jafarpour F, Ariafard A. A transition-metal-free fast track to flavones and 3-arylcoumarins. Chem Commun (Camb) 2018; 53:10676-10679. [PMID: 28905058 DOI: 10.1039/c7cc02107k] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
A highly regioselective and transition-metal free one-pot arylation of chromenones with arylboronic acids has been achieved employing K2S2O8. The procedure consists of a sequence of some reactions including an arylation/decarboxylation cascade and proceeds well in aqueous media to afford biologically interesting flavones and 3-arylcoumarins. This method exhibited excellent selectivity and functional group tolerance under mild conditions. The reaction also showed perfect efficacy for the preparation of styryl coumarins.
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Affiliation(s)
- Mostafa Golshani
- Nanobiomaterials group, Pharmaceutical Sciences Research Center, Tehran University of Medical Sciences, Tehran 141761411, Iran.
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50
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Ji X, Li D, Wang Z, Tan M, Huang H, Deng GJ. Visible Light-Induced Aerobic Oxidation of Indoles: One-Pot Formation of 4-Quinolones at Room Temperature. ASIAN J ORG CHEM 2018. [DOI: 10.1002/ajoc.201800036] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Affiliation(s)
- Xiaochen Ji
- Key Laboratory for Green Organic Synthesis and Application of Hunan Province, Key Laboratory of Environmentally Friendly Chemistry and Application of Ministry of Education; College of Chemistry; Xiangtan University; Xiangtan 411105 China
| | - Dongdong Li
- Key Laboratory for Green Organic Synthesis and Application of Hunan Province, Key Laboratory of Environmentally Friendly Chemistry and Application of Ministry of Education; College of Chemistry; Xiangtan University; Xiangtan 411105 China
| | - Zhongzhen Wang
- Key Laboratory for Green Organic Synthesis and Application of Hunan Province, Key Laboratory of Environmentally Friendly Chemistry and Application of Ministry of Education; College of Chemistry; Xiangtan University; Xiangtan 411105 China
| | - Muyun Tan
- Key Laboratory for Green Organic Synthesis and Application of Hunan Province, Key Laboratory of Environmentally Friendly Chemistry and Application of Ministry of Education; College of Chemistry; Xiangtan University; Xiangtan 411105 China
| | - Huawen Huang
- Key Laboratory for Green Organic Synthesis and Application of Hunan Province, Key Laboratory of Environmentally Friendly Chemistry and Application of Ministry of Education; College of Chemistry; Xiangtan University; Xiangtan 411105 China
| | - Guo-Jun Deng
- Key Laboratory for Green Organic Synthesis and Application of Hunan Province, Key Laboratory of Environmentally Friendly Chemistry and Application of Ministry of Education; College of Chemistry; Xiangtan University; Xiangtan 411105 China
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