1
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Zhang X, Ma X, Zhang W. Decarboxylative 1,3-dipolar cycloaddition of amino acids for the synthesis of heterocyclic compounds. Beilstein J Org Chem 2023; 19:1677-1693. [PMID: 38025085 PMCID: PMC10644012 DOI: 10.3762/bjoc.19.123] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2023] [Accepted: 10/25/2023] [Indexed: 12/01/2023] Open
Abstract
The [3 + 2] cycloadditions of stabilized azomethine ylides (AMYs) derived from amino esters are well-established. However, the reactions of semi-stabilized AMYs generated from decarboxylative condensation of α-amino acids with arylaldehydes are much less explored. The [3 + 2] adducts of α-amino acids could be used for a second [3 + 2] cycloaddition as well as for other post-condensation modifications. This article highlights our recent work on the development of α-amino acid-based [3 + 2] cycloaddition reactions of N-H-type AMYs in multicomponent, one-pot, and stepwise reactions for the synthesis of diverse heterocycles related to some bioactive compounds and natural products.
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Affiliation(s)
- Xiaofeng Zhang
- Center for Green Chemistry and Department of Chemistry, University of Massachusetts Boston, 100 Morrissey Boulevard, Boston, MA 02125, USA
- Department of Medicinal Chemistry, Cerevel Therapeutics, 222 Jacobs St Suite 200, Cambridge, MA 02141, USA
| | - Xiaoming Ma
- School of Pharmacy, Changzhou University, Changzhou 213164, China
| | - Wei Zhang
- Center for Green Chemistry and Department of Chemistry, University of Massachusetts Boston, 100 Morrissey Boulevard, Boston, MA 02125, USA
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2
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Huang TY, Djugovski M, Adhikari S, Manning DL, Roy S. Morpholine-mediated defluorinative cycloaddition of gem-difluoroalkenes and organic azides. Beilstein J Org Chem 2023; 19:1545-1554. [PMID: 37822920 PMCID: PMC10562644 DOI: 10.3762/bjoc.19.111] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2023] [Accepted: 09/12/2023] [Indexed: 10/13/2023] Open
Abstract
Here, we report the first transition-metal-free defluorinative cycloaddition of gem-difluoroalkenes with organic azides in morpholine as a solvent to construct fully decorated morpholine-substituted 1,2,3-triazoles. Mechanistic studies revealed the formation of an addition-elimination intermediate of morpholine and gem-difluoroalkenes prior to the triazolization reaction via two plausible pathways. Attractive elements include the regioselective and straightforward direct synthesis of fully substituted 1,2,3-triazoles, which are otherwise difficult to access, from readily available starting materials.
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Affiliation(s)
- Tzu-Yu Huang
- Department of BioMolecular Sciences, School of Pharmacy, University of Mississippi, University, MS 38677, USA
| | - Mario Djugovski
- Department of BioMolecular Sciences, School of Pharmacy, University of Mississippi, University, MS 38677, USA
| | - Sweta Adhikari
- Department of BioMolecular Sciences, School of Pharmacy, University of Mississippi, University, MS 38677, USA
| | - Destinee L Manning
- Department of BioMolecular Sciences, School of Pharmacy, University of Mississippi, University, MS 38677, USA
| | - Sudeshna Roy
- Department of BioMolecular Sciences, School of Pharmacy, University of Mississippi, University, MS 38677, USA
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3
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Wang K, Zhou W, Jia J, Ye J, Yuan M, Yang J, Qi Y, Chen R. Substrate-Controlled Diversity-Oriented Synthesis of Novel Polycyclic Frameworks via [4 + 2] and [3 + 2] Annulations of Ninhydrin-Derived MBH Adducts with 3,4-Dihydroisoquinolines. Molecules 2023; 28:6761. [PMID: 37836604 PMCID: PMC10574269 DOI: 10.3390/molecules28196761] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2023] [Revised: 09/19/2023] [Accepted: 09/20/2023] [Indexed: 10/15/2023] Open
Abstract
Substrate-controlled diversity-oriented synthesis of polycyclic frameworks via [4 + 2] and [3 + 2] annulations between ninhydrin-derived Morita-Baylis-Hillman (MBH) adducts and 3,4-dihydroisoquinolines under similar reaction conditions have been developed. The reaction provides diversity-oriented synthesis of a series of novel and structurally complex spiro multi heterocyclic skeletons in good yields (up to 87% and 90%, respectively) with excellent diastereoselectivities (up to >25:1 dr). In particular, the switchable [4 + 2] and [3 + 2] annulation reactions are controlled by tuning the hydroxyl protecting group on the ninhydrin-derived MBH adduct to deliver structural diverse spiro[indene-2,2'-[1,3]oxazino[2,3-a]isoquinoline] and spiro[indene-2,1'-pyrrolo[2,1-a]isoquinoline], respectively. Furthermore, the relative configuration and chemical structure of two kinds of cycloadducts were confirmed through X-ray diffraction analysis.
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Affiliation(s)
- Kaikai Wang
- School of Pharmacy, Xinxiang University, Xinxiang 453000, China; (K.W.); (W.Z.); (J.Y.); (M.Y.); (Y.Q.)
| | - Wenwen Zhou
- School of Pharmacy, Xinxiang University, Xinxiang 453000, China; (K.W.); (W.Z.); (J.Y.); (M.Y.); (Y.Q.)
| | - Jun Jia
- Jilin Province Product Quality Supervision and Inspection Institute, Changchun 130012, China;
| | - Junwei Ye
- School of Pharmacy, Xinxiang University, Xinxiang 453000, China; (K.W.); (W.Z.); (J.Y.); (M.Y.); (Y.Q.)
| | - Mengxin Yuan
- School of Pharmacy, Xinxiang University, Xinxiang 453000, China; (K.W.); (W.Z.); (J.Y.); (M.Y.); (Y.Q.)
| | - Jie Yang
- School of Chemistry & Materials Engineering, Xinxiang University, Xinxiang 453000, China
| | - Yonghua Qi
- School of Pharmacy, Xinxiang University, Xinxiang 453000, China; (K.W.); (W.Z.); (J.Y.); (M.Y.); (Y.Q.)
| | - Rongxiang Chen
- School of Pharmacy, Xinxiang University, Xinxiang 453000, China; (K.W.); (W.Z.); (J.Y.); (M.Y.); (Y.Q.)
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4
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Ji S, Zhao L, Miao B, Xue M, Pan T, Shao Z, Zhou X, Fu A, Zhang Y. Electrochemical Activation of Nitromethane to Construct Isoxazoline Aldoximes. Angew Chem Int Ed Engl 2023:e202304434. [PMID: 37340694 DOI: 10.1002/anie.202304434] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2023] [Revised: 06/16/2023] [Accepted: 06/19/2023] [Indexed: 06/22/2023]
Abstract
Activating the nitromethane to endow new reactivity is an intersesting and meaningful but challenging topic. Herein, we report an electrochemical activation of nitromethane to serve as both heterocyclic skeleton and oxime sources for the construction of isoxazoline aldoximes. The isoxazoline aldoximes that prepared by four steps with reported strategy are synthesized in a single step from low-cost and readily available nitromethane and olefins with moderate to excellent yields under our electrochemical conditions. The reaction also takes advantages of high atom-economy and E-selectivity. Moreover, the mechanism is studied by control experiments, kinetic isotope effect (KIE) study, cyclic voltammograms (CVs) experiments, and density functional theory (DFT) calculations. The mechanistic results reveal that nitromethane may be activated under electrochemical conditions to deliver 1,2,5-oxadiazole 2-oxide intermediate, which undergoes [3 + 2] cycloaddition with olefins to yield isoxazoline aldoximes.
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Affiliation(s)
- Shuaiyu Ji
- Qingdao University, College of Chemistry and Chemical Engineering, CHINA
| | - Lixing Zhao
- Qingdao University, College of Chemistry and Chemical Engineering, CHINA
| | - Bingyang Miao
- Qingdao University, College of Chemistry and Chemical Engineering, CHINA
| | - Meng Xue
- Qingdao University, College of Chemistry and Chemical Engineering, CHINA
| | - Tao Pan
- Qingdao University, College of Chemistry and Chemical Engineering, CHINA
| | - Zhichao Shao
- Qingdao University, College of Chemistry and Chemical Engineering, CHINA
| | - Xin Zhou
- Qingdao University, College of Chemistry and Chemical Engineering, CHINA
| | - Aiping Fu
- Qingdao University, College of Chemistry and Chemical Engineering, CHINA
| | - Yuexia Zhang
- Qingdao University, College of Chemistry and Chemical Engineering, 308 Ningxia Road, , 266071, Qingdao, CHINA
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5
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Wang ZH, Zhang T, Shen LW, Yang X, Zhang YP, You Y, Zhao JQ, Yuan WC. Diverse Synthesis of Fused Polyheterocyclic Compounds via [3 + 2] Cycloaddition of In Situ-Generated Heteroaromatic N-Ylides and Electron-Deficient Olefins. Molecules 2023; 28:molecules28114410. [PMID: 37298885 DOI: 10.3390/molecules28114410] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2023] [Revised: 05/25/2023] [Accepted: 05/26/2023] [Indexed: 06/12/2023] Open
Abstract
[3 + 2] Cycloaddition reactions of heteroaromatic N-ylides with electron-deficient olefins have been developed. The heteroaromatic N-ylides, in situ generated from N-phenacylbenzothiazolium bromides, can smoothly react with maleimides under very mild conditions, affording fused polycyclic octahydropyrrolo[3,4-c]pyrroles in good-to-excellent isolated yields. This reaction concept could also be extended to 3-trifluoroethylidene oxindoles and benzylidenemalononitriles as electron-deficient olefins for accessing highly functionalized polyheterocyclic compounds. A gram-scale experiment was also carried out to verify the practicability of the methodology.
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Affiliation(s)
- Zhen-Hua Wang
- Innovation Research Center of Chiral Drugs, Institute for Advanced Study, Chengdu University, Chengdu 610106, China
| | - Tong Zhang
- Innovation Research Center of Chiral Drugs, Institute for Advanced Study, Chengdu University, Chengdu 610106, China
| | - Li-Wen Shen
- College of Chemistry and Chemical Engineering, Zunyi Normal University, Zunyi 563006, China
| | - Xiu Yang
- Innovation Research Center of Chiral Drugs, Institute for Advanced Study, Chengdu University, Chengdu 610106, China
| | - Yan-Ping Zhang
- Innovation Research Center of Chiral Drugs, Institute for Advanced Study, Chengdu University, Chengdu 610106, China
| | - Yong You
- Innovation Research Center of Chiral Drugs, Institute for Advanced Study, Chengdu University, Chengdu 610106, China
| | - Jian-Qiang Zhao
- Innovation Research Center of Chiral Drugs, Institute for Advanced Study, Chengdu University, Chengdu 610106, China
| | - Wei-Cheng Yuan
- Innovation Research Center of Chiral Drugs, Institute for Advanced Study, Chengdu University, Chengdu 610106, China
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6
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Kras J, Woliński P, Nagatsky R, Demchuk OM, Jasiński R. Full Regio- and Stereoselective Protocol for the Synthesis of New Nicotinoids via Cycloaddition Processes with the Participation of Trans-Substituted Nitroethenes: Comprehensive Experimental and MEDT Study. Molecules 2023; 28:molecules28083535. [PMID: 37110768 PMCID: PMC10142438 DOI: 10.3390/molecules28083535] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2023] [Revised: 04/07/2023] [Accepted: 04/13/2023] [Indexed: 04/29/2023] Open
Abstract
[3 + 2] Cycloaddition reactions with the participation of Z-C-(3-pyridyl)-N-methylnitrone and series of E-2-R-nitroethenes were both experimentally and theoretically explored in the framework of Molecular Electron Density Theory. It was found that all considered processes are realized under mild conditions and in full regio- and stereocontrol. The ELF analysis additionally showed that the studied reaction proceeds by a two-stage, one-step mechanism.
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Affiliation(s)
- Jowita Kras
- Department of Organic Chemistry and Technology, Cracow University of Technology, Warszawska 24, 31-155 Krakow, Poland
| | - Przemysław Woliński
- Department of Organic Chemistry and Technology, Cracow University of Technology, Warszawska 24, 31-155 Krakow, Poland
| | - Roman Nagatsky
- Department of Organic Chemistry and Technology, Cracow University of Technology, Warszawska 24, 31-155 Krakow, Poland
| | - Oleg M Demchuk
- Faculty of Medicine, The John Paul II Catholic University of Lublin, Konstantynow 1J, 20-708 Lublin, Poland
| | - Radomir Jasiński
- Department of Organic Chemistry and Technology, Cracow University of Technology, Warszawska 24, 31-155 Krakow, Poland
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7
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Dresler E, Wróblewska A, Jasiński R. Understanding the Regioselectivity and the Molecular Mechanism of [3 + 2] Cycloaddition Reactions between Nitrous Oxide and Conjugated Nitroalkenes: A DFT Computational Study. Molecules 2022; 27:molecules27238441. [PMID: 36500530 PMCID: PMC9738823 DOI: 10.3390/molecules27238441] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2022] [Revised: 11/26/2022] [Accepted: 11/29/2022] [Indexed: 12/03/2022] Open
Abstract
Regiochemical aspects and the molecular mechanism of the [3 + 2] cycloaddition between nitrous oxide and conjugated nitroalkenes were evaluated on the basis of the wb97xd/6-311 + G(d) (PCM) computational study. It was found that, independently of the nature of the nitroalkene, all considered processes are realized via polar, single-step mechanisms. All attempts at the localization of hypothetical zwitterionic intermediates were unsuccessful. Additionally, the DFT computational study suggested that, in the course of the reaction, the formation of respective Δ2-4-nitro-4-R1-5-R2-1-oxa-2,3-diazolines was preferred from the kinetic point of view.
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Affiliation(s)
- Ewa Dresler
- Łukasiewicz Research Network, Institute of Heavy Organic Synthesis “Blachownia”, Energetyków 9, 47-225 Kędzierzyn-Koźle, Poland
| | - Aneta Wróblewska
- Centre of Molecular and Macromolecular Studies, Polish Academy of Sciences, Sienkiewicza 112, 90-363 Lodz, Poland
| | - Radomir Jasiński
- Institute of Organic Chemistry and Technology, Cracow University of Technology, Warszawska 24, 31-155 Cracow, Poland
- Correspondence:
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8
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Ivan BC, Barbuceanu SF, Hotnog CM, Anghel AI, Ancuceanu RV, Mihaila MA, Brasoveanu LI, Shova S, Draghici C, Olaru OT, Nitulescu GM, Dinu M, Dumitrascu F. New Pyrrole Derivatives as Promising Biological Agents: Design, Synthesis, Characterization, In Silico, and Cytotoxicity Evaluation. Int J Mol Sci 2022; 23:8854. [PMID: 36012121 PMCID: PMC9408590 DOI: 10.3390/ijms23168854] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2022] [Revised: 08/02/2022] [Accepted: 08/06/2022] [Indexed: 11/16/2022] Open
Abstract
The current study describes the synthesis, physicochemical characterization and cytotoxicity evaluation of a new series of pyrrole derivatives in order to identify new bioactive molecules. The new pyrroles were obtained by reaction of benzimidazolium bromide derivatives with asymmetrical acetylenes in 1,2-epoxybutane under reflux through the Huisgen [3 + 2] cycloaddition of several ylide intermediates to the corresponding dipolarophiles. The intermediates salts were obtained from corresponding benzimidazole with bromoacetonitrile. The structures of the newly synthesized compounds were confirmed by elemental analysis, spectral techniques (i.e., IR, 1H-NMR and 13C-NMR) and single-crystal X-ray analysis. The cytotoxicity of the synthesized compounds was evaluated on plant cells (i.e., Triticum aestivum L.) and animal cells using aquatic crustaceans (i.e., Artemia franciscana Kellogg and Daphnia magna Straus). The potential antitumor activity of several of the pyrrole derivatives was studied by performing in vitro cytotoxicity assays on human adenocarcinoma-derived cell lines (i.e., LoVo (colon), MCF-7 (breast), and SK-OV-3 (ovary)) and normal human umbilical vein endothelial cells (HUVECs). The obtained results of the cytotoxicity assessment indicated that the tested compounds had nontoxic activity on Triticum aestivum L., while on Artemia franciscana Kellogg nauplii, only compounds 2c and 4c had moderate toxicity. On Daphnia magna, 4b and 4c showed high toxicity; 2a, 2b, and 2c moderate to high toxicity; only 4a and 4d were nontoxic. The compound-mediated cytotoxicity assays showed that several pyrrole compounds demonstrated dose- and time-dependent cytotoxic activity against all tested tumor cell lines, the highest antitumor properties being achieved by 4a and its homologue 4d, especially against LoVo colon cells.
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Affiliation(s)
- Beatrice-Cristina Ivan
- Faculty of Pharmacy, “Carol Davila” University of Medicine and Pharmacy, 6 Traian Vuia Street, 020956 Bucharest, Romania
| | - Stefania-Felicia Barbuceanu
- Faculty of Pharmacy, “Carol Davila” University of Medicine and Pharmacy, 6 Traian Vuia Street, 020956 Bucharest, Romania
| | - Camelia Mia Hotnog
- Center of Immunology, “Stefan S. Nicolau” Institute of Virology, Romanian Academy, 285 Mihai Bravu Ave., 030304 Bucharest, Romania
| | - Adriana Iuliana Anghel
- Faculty of Pharmacy, “Carol Davila” University of Medicine and Pharmacy, 6 Traian Vuia Street, 020956 Bucharest, Romania
| | - Robert Viorel Ancuceanu
- Faculty of Pharmacy, “Carol Davila” University of Medicine and Pharmacy, 6 Traian Vuia Street, 020956 Bucharest, Romania
| | - Mirela Antonela Mihaila
- Center of Immunology, “Stefan S. Nicolau” Institute of Virology, Romanian Academy, 285 Mihai Bravu Ave., 030304 Bucharest, Romania
| | - Lorelei Irina Brasoveanu
- Center of Immunology, “Stefan S. Nicolau” Institute of Virology, Romanian Academy, 285 Mihai Bravu Ave., 030304 Bucharest, Romania
| | - Sergiu Shova
- Laboratory of Inorganic Polymers, “Petru Poni” Institute of Macromolecular Chemistry, Aleea Grigore Ghica Voda, 41A, 700487 Iasi, Romania
| | - Constantin Draghici
- “C.D. Nenitescu” Institute of Organic and Supramolecular Chemistry Romanian Academy, 202B Splaiul Independenței, 060023 Bucharest, Romania
| | - Octavian Tudorel Olaru
- Faculty of Pharmacy, “Carol Davila” University of Medicine and Pharmacy, 6 Traian Vuia Street, 020956 Bucharest, Romania
| | - George Mihai Nitulescu
- Faculty of Pharmacy, “Carol Davila” University of Medicine and Pharmacy, 6 Traian Vuia Street, 020956 Bucharest, Romania
| | - Mihaela Dinu
- Faculty of Pharmacy, “Carol Davila” University of Medicine and Pharmacy, 6 Traian Vuia Street, 020956 Bucharest, Romania
| | - Florea Dumitrascu
- “C.D. Nenitescu” Institute of Organic and Supramolecular Chemistry Romanian Academy, 202B Splaiul Independenței, 060023 Bucharest, Romania
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9
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Mitka K, Fela K, Olszewska A, Jasiński R. On the Question of Zwitterionic Intermediates in the [3 + 2] Cycloaddition Reactions between C-arylnitrones and Perfluoro 2-Methylpent-2-ene. Molecules 2021; 26:molecules26237147. [PMID: 34885722 PMCID: PMC8659067 DOI: 10.3390/molecules26237147] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2021] [Revised: 11/19/2021] [Accepted: 11/20/2021] [Indexed: 11/29/2022] Open
Abstract
The molecular mechanism of the [3 + 2] cycloaddition reaction between C-arylnitrones and perfluoro 2-methylpent-2-ene was explored on the basis of DFT calculations. It was found that despite the polar nature of the intermolecular interactions, as well as the presence of fluorine atoms near the reaction centers, all reactions considered cycloaddition proceed via a one-step mechanism. All attempts for the localization of zwitterionic intermediates on the reaction paths were not successful. Similar results were obtained regardless of the level of theory applied.
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10
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Zawadzińska K, Ríos-Gutiérrez M, Kula K, Woliński P, Mirosław B, Krawczyk T, Jasiński R. The Participation of 3,3,3-Trichloro-1-nitroprop-1-ene in the [3 + 2] Cycloaddition Reaction with Selected Nitrile N-Oxides in the Light of the Experimental and MEDT Quantum Chemical Study. Molecules 2021; 26:6774. [PMID: 34833866 PMCID: PMC8622200 DOI: 10.3390/molecules26226774] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2021] [Revised: 11/04/2021] [Accepted: 11/05/2021] [Indexed: 11/17/2022] Open
Abstract
The regioselective zw-type [3 + 2] cycloaddition (32CA) reactions of a series of aryl-substituted nitrile N-oxides (NOs) with trichloronitropropene (TNP) have been both experimentally and theoretically studied within the Molecular Electron Density Theory (MEDT). Zwitterionic NOs behave as moderate nucleophiles while TNP acts as a very strong electrophile in these polar 32CA reactions of forward electron density flux, which present moderate activation Gibbs free energies of 22.8-25.6 kcal·mol-1 and an exergonic character of 28.4 kcal·mol-1 that makes them irreversible and kinetically controlled. The most favorable reaction is that involving the most nucleophilic MeO-substituted NO. Despite Parr functions correctly predicting the experimental regioselectivity with the most favorable O-CCCl3 interaction, these reactions follow a two-stage one-step mechanism in which formation of the O-C(CCl3) bond takes place once the C-C(NO2) bond is already formed. The present MEDT concludes that the reactivity differences in the series of NOs come from their different nucleophilic activation and polar character of the reactions, rather than any mechanistic feature.
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Affiliation(s)
- Karolina Zawadzińska
- Department of Organic Chemistry and Technology, Cracow University of Technology, Warszawska 24, 31-155 Cracow, Poland; (K.Z.); (K.K.); (P.W.)
| | - Mar Ríos-Gutiérrez
- Department of Organic Chemistry, University of Valencia, Dr. Moliner 50, Burjassot, 46100 Valencia, Spain
| | - Karolina Kula
- Department of Organic Chemistry and Technology, Cracow University of Technology, Warszawska 24, 31-155 Cracow, Poland; (K.Z.); (K.K.); (P.W.)
| | - Przemysław Woliński
- Department of Organic Chemistry and Technology, Cracow University of Technology, Warszawska 24, 31-155 Cracow, Poland; (K.Z.); (K.K.); (P.W.)
| | - Barbara Mirosław
- Department of General and Coordination Chemistry and Crystallography, Maria Curie-Sklodowska University in Lublin, Pl. Marii Curie-Sklodowskiej 3, 20-031 Lublin, Poland;
| | - Tomasz Krawczyk
- Department of Chemical Organic Technology and Petrochemistry, Silesian University of Technology, Krzywoustego 4, 44-100 Gliwice, Poland;
| | - Radomir Jasiński
- Department of Organic Chemistry and Technology, Cracow University of Technology, Warszawska 24, 31-155 Cracow, Poland; (K.Z.); (K.K.); (P.W.)
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11
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Maftei CV, Franz MH, Kleeberg C, Neda I. New Members of the Cinchona Alkaloids Family: Assembly of the Triazole Heterocycle at the 6' Position. Molecules 2021; 26:molecules26113357. [PMID: 34199504 PMCID: PMC8199664 DOI: 10.3390/molecules26113357] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2021] [Revised: 05/27/2021] [Accepted: 05/28/2021] [Indexed: 12/04/2022] Open
Abstract
The substance class of the well-known Cinchona alkaloids is widened by 6′-Amino-cinchonine and 6′-Amino-cinchonidine, novel compounds which incorporate a primary amino function in the quinolinic ring system. These key intermediates open the field for a range of fruitful chemistry. Here is described a short and direct pathway for the synthesis of triazole containing derivatives of the above-mentioned substances using the [3 + 2] Huisgen cycloaddition. For this purpose, the amines were first converted into the corresponding azides. Based on this, non-substituted and silyl-protected triazoles were synthesized as examples. Furthermore, didehydrated derivatives of quincorine and quincoridine were used as addition partners, resulting in compounds that carry the quinuclidine ring of the cinchona alkaloids at both ends. Some of these compounds were examined radiographically to investigate the position of the quinuclidine ring to the triazole. The solid-state structures of compounds 10, 11 and 28 were determined by X-ray diffraction analyses.
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Affiliation(s)
| | - Martin Heiko Franz
- InnoChemTech GmbH, Hagenring 30, 38106 Braunschweig, Germany; (C.V.M.); (M.H.F.)
| | - Christian Kleeberg
- Institut für Anorganische und Analytische Chemie, Technische Universität ‘Carola-Wilhelmina’ Braunschweig, Hagenring 30, 38106 Braunschweig, Germany;
| | - Ion Neda
- Institut für Anorganische und Analytische Chemie, Technische Universität ‘Carola-Wilhelmina’ Braunschweig, Hagenring 30, 38106 Braunschweig, Germany;
- Correspondence:
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12
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Wang P, Yu R, Ali S, Wang Z, Liu Z, Gao J, Zheng H. Silver Catalyzed Decarbonylative [3 + 2] Cycloaddition of Cyclobutenediones and Formamides. Molecules 2021; 26:2974. [PMID: 34067793 DOI: 10.3390/molecules26102974] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2021] [Revised: 05/06/2021] [Accepted: 05/14/2021] [Indexed: 11/17/2022] Open
Abstract
As an important moiety in natural products, N,O-acetal has attracted wide attention in the past few years. An efficient method to construct N,O-acetal has been developed. Using silver catalyst, cyclobutenediones were smoothly converted to the corresponding γ-aminobutenolides in the presence of formamides, in which cyclobutenediones likely proceed with a key decarbonylative [3 + 2] cycloaddition process. In this way, a series of products with varied substituents were isolated in moderate yield and fully characterized.
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13
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Abstract
Many natural products possess interesting medicinal properties that arise from their intriguing chemical structures. The highly-substituted carbocycle is one of the most common structural features in many structurally complicated natural products. However, the construction of highly-substituted, stereo-congested, five-membered carbocycles containing all-carbon quaternary center(s) is, at present, a distinct challenge in modern synthetic chemistry, which can be accessed through the all-carbon [3 + 2] cycloaddition. More importantly, the all-carbon [3 + 2] cycloaddition can forge vicinal all-carbon quaternary centers in a single step and has been demonstrated in the synthesis of complex natural products. In this review, we present the development of all-carbon [3 + 2] cycloadditions and illustrate their application in natural product synthesis reported in the last decade covering 2011-2020 (inclusive).
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Affiliation(s)
- Zhuo Wang
- School of Medicine, Southern University of Science and Technology, Shenzhen, 518055, People's Republic of China
| | - Junyang Liu
- Academy for Advanced Interdisciplinary Studies, Southern University of Science and Technology, Shenzhen, 518055, People's Republic of China
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14
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Ma X, Meng S, Zhang X, Zhang Q, Yan S, Zhang Y, Zhang W. Synthesis of pyrrolidinedione-fused hexahydropyrrolo[2,1- a]isoquinolines via three-component [3 + 2] cycloaddition followed by one-pot N-allylation and intramolecular Heck reactions. Beilstein J Org Chem 2020; 16:1225-1233. [PMID: 32550934 PMCID: PMC7277624 DOI: 10.3762/bjoc.16.106] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2020] [Accepted: 05/26/2020] [Indexed: 12/13/2022] Open
Abstract
Two kinds of [3 + 2] cycloaddition intermediates generated from the three-component reactions of 2-bromobenzaldehydes and maleimides with amino esters or amino acids were used for a one-pot N-allylation and intramolecular Heck reactions to form pyrrolidinedione-fused hexahydropyrrolo[2,1-a]isoquinolines. The multicomponent reaction was combined with one-pot reactions to make a synthetic method with good pot, atom and step economy. MeCN was used as a preferable green solvent for the reactions.
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Affiliation(s)
- Xiaoming Ma
- School of Pharmaceutical Engineering and Life Science, Changzhou University, Changzhou 213164, China
| | - Suzhi Meng
- School of Pharmaceutical Engineering and Life Science, Changzhou University, Changzhou 213164, China
| | - Xiaofeng Zhang
- Center for Green Chemistry and Department of Chemistry, University of Massachusetts Boston, 100 Morrissey Boulevard, Boston, MA 02125, USA
- Department of Cancer Biology, Dana-Farber Cancer Institute, Department of Medicine, Harvard Medical School, Boston, MA 02215, USA
| | - Qiang Zhang
- School of Chemistry, Biology and Materials Engineering, Suzhou University of Science and Technology, Suzhou 215009, China
| | - Shenghu Yan
- School of Pharmaceutical Engineering and Life Science, Changzhou University, Changzhou 213164, China
| | - Yue Zhang
- School of Pharmaceutical Engineering and Life Science, Changzhou University, Changzhou 213164, China
| | - Wei Zhang
- Center for Green Chemistry and Department of Chemistry, University of Massachusetts Boston, 100 Morrissey Boulevard, Boston, MA 02125, USA
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15
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Cao Z, Zhu J, Liu L, Pang Y, Tian L, Sun X, Meng X. AgNTf 2-catalyzed formal [3 + 2] cycloaddition of ynamides with unprotected isoxazol-5-amines: efficient access to functionalized 5-amino-1 H-pyrrole-3-carboxamide derivatives. Beilstein J Org Chem 2019; 15:2623-2630. [PMID: 31807197 PMCID: PMC6880818 DOI: 10.3762/bjoc.15.255] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2019] [Accepted: 10/15/2019] [Indexed: 12/13/2022] Open
Abstract
A formal [3 + 2] cycloaddition between ynamides and unprotected isoxazol-5-amines has been developed in the presence of catalytic AgNTf2 in an open flask. By the protocol, a variety of functionalized 5-amino-1H-pyrrole-3-carboxamide derivatives can be obtained in up to 99% yield. The reaction mechanism might involve the generation of an unusual α-imino silver carbene intermediate (or a silver-stabilized carbocation) and subsequent cyclization/isomerization to build the significant pyrrole-3-carboxamide motif. The reaction features the use of an inexpensive catalyst, simple reaction conditions, simple work-up without column chromatographic purification for most of products and high yields.
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Affiliation(s)
- Ziping Cao
- Qufu Normal University, School of Chemistry and Chemical Engineering, Qufu 273165, P. R. China
| | - Jiekun Zhu
- Qufu Normal University, School of Chemistry and Chemical Engineering, Qufu 273165, P. R. China
| | - Li Liu
- Qufu Normal University, School of Chemistry and Chemical Engineering, Qufu 273165, P. R. China
| | - Yuanling Pang
- Qufu Normal University, School of Chemistry and Chemical Engineering, Qufu 273165, P. R. China
| | - Laijin Tian
- Qufu Normal University, School of Chemistry and Chemical Engineering, Qufu 273165, P. R. China
- Key Laboratory of Pharmaceutical Intermediates and Analysis of Natural Medicine, Shandong Key Laboratory of Life-Organic Analysis, Qufu 273165, P. R. China
| | - Xuejun Sun
- Qufu Normal University, School of Chemistry and Chemical Engineering, Qufu 273165, P. R. China
| | - Xin Meng
- Qufu Normal University, School of Chemistry and Chemical Engineering, Qufu 273165, P. R. China
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16
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Raju SK, Almansour AI, Natarajan A, Mohammad F. Design, Synthesis and In Vitro Mechanistic Investigation of Novel Hexacyclic Cage-Like Hybrid Heterocycles. Molecules 2019; 24:E3820. [PMID: 31652778 PMCID: PMC6864531 DOI: 10.3390/molecules24213820] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2019] [Revised: 10/17/2019] [Accepted: 10/21/2019] [Indexed: 12/30/2022] Open
Abstract
Novel hexacyclic cage-like hybrid heterocycles have been synthesized in excellent yields employing a relatively less explored non-stabilized azomethine ylides derived from acenaphthenequinone and tyrosine with functionalized dipolarophiles using [3 + 2] cycloaddition strategy. The synthesized hexacyclic cage-like hybrid heterocycles were characterized by spectroscopic analysis. Following the physical characterization, these cage-like hybrid heterocycles were tested for their biological activity by means of different cancer (A549 and Jurkat cells) and non-cancer (BRL-3A and PCS-130) in vitro cell culture systems. The results of the study under tested concentrations (up to 100 μM) indicated that these compounds are not affecting any viability to the cell growth of non-cancer cells, while providing significant anticancer activity against both of the cancer cells. Further analysis of in-depth mechanistic study for the cell death indicated that these compounds are exhibiting late apoptosis or early necrosis pathway to the cells where it is operated by the induction of caspases.
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Affiliation(s)
- Suresh Kumar Raju
- Department of Chemistry, College of Science, King Saud University, P.O. Box 2455, Riyadh 11451, Saudi Arabia.
| | - Abdulrahman I Almansour
- Department of Chemistry, College of Science, King Saud University, P.O. Box 2455, Riyadh 11451, Saudi Arabia.
| | - Arumugam Natarajan
- Department of Chemistry, College of Science, King Saud University, P.O. Box 2455, Riyadh 11451, Saudi Arabia.
| | - Faruq Mohammad
- Surfactants Research Chair, Department of Chemistry, College of Science, King Saud University, P.O. Box 2455, Riyadh 11451, Saudi Arabia.
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17
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Zhang X, Pham K, Liu S, Legris M, Muthengi A, Jasinski JP, Zhang W. Stereoselective synthesis of fused tetrahydroquinazolines through one-pot double [3 + 2] dipolar cycloadditions followed by [5 + 1] annulation. Beilstein J Org Chem 2016; 12:2204-2210. [PMID: 27829928 PMCID: PMC5082442 DOI: 10.3762/bjoc.12.211] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2016] [Accepted: 09/29/2016] [Indexed: 01/11/2023] Open
Abstract
The one-pot [3 + 2] cycloaddition of an azomethine ylide with a maleimide followed by another [3 + 2] cycloaddition of an azide with the second maleimide gives a 1,5-diamino intermediate which is used for a sequential aminomethylation reaction with formaldehyde through [5 + 1] annulation to afford a novel polycyclic scaffold bearing tetrahydroquinazoline, pyrrolidine, pyrrolidinedione, and N-substituted maleimide in stereoselective fashion.
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Affiliation(s)
- Xiaofeng Zhang
- Center for Green Chemistry and Department of Chemistry, University of Massachusetts Boston, 100 Morrissey Boulevard, Boston, MA 02125, USA
| | - Kenny Pham
- Center for Green Chemistry and Department of Chemistry, University of Massachusetts Boston, 100 Morrissey Boulevard, Boston, MA 02125, USA
| | - Shuai Liu
- Center for Green Chemistry and Department of Chemistry, University of Massachusetts Boston, 100 Morrissey Boulevard, Boston, MA 02125, USA
| | - Marc Legris
- Center for Green Chemistry and Department of Chemistry, University of Massachusetts Boston, 100 Morrissey Boulevard, Boston, MA 02125, USA
| | - Alex Muthengi
- Center for Green Chemistry and Department of Chemistry, University of Massachusetts Boston, 100 Morrissey Boulevard, Boston, MA 02125, USA
| | - Jerry P Jasinski
- Department of Chemistry, Keene State College, 220 Main Street, Keene, NH 03435, USA
| | - Wei Zhang
- Center for Green Chemistry and Department of Chemistry, University of Massachusetts Boston, 100 Morrissey Boulevard, Boston, MA 02125, USA
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18
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Yamashita Y, Yoshimoto S, Dutton MJ, Kobayashi S. Development of chiral metal amides as highly reactive catalysts for asymmetric [3 + 2] cycloadditions. Beilstein J Org Chem 2016; 12:1447-52. [PMID: 27559396 PMCID: PMC4979734 DOI: 10.3762/bjoc.12.140] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2016] [Accepted: 06/02/2016] [Indexed: 12/24/2022] Open
Abstract
Highly efficient catalytic asymmetric [3 + 2] cycloadditions using a chiral copper amide are reported. Compared with the chiral CuOTf/Et3N system, the CuHMDS system showed higher reactivity, and the desired reactions proceeded in high yields and high selectivities with catalyst loadings as low as 0.01 mol %.
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Affiliation(s)
- Yasuhiro Yamashita
- Department of Chemistry, School of Science, The University of Tokyo, Hongo, Bunkyo-ku, Tokyo, Japan
| | - Susumu Yoshimoto
- Department of Chemistry, School of Science, The University of Tokyo, Hongo, Bunkyo-ku, Tokyo, Japan
| | - Mark J Dutton
- Department of Chemistry, School of Science, The University of Tokyo, Hongo, Bunkyo-ku, Tokyo, Japan
| | - Shū Kobayashi
- Department of Chemistry, School of Science, The University of Tokyo, Hongo, Bunkyo-ku, Tokyo, Japan
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19
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Zhou X, Liu M, Luo P, Lai Y, Yang T, Ding Q. Synthesis of 2-trifluoromethylpyrazolo[5,1-a]isoquinolines via silver triflate-catalyzed or electrophile-mediated one-pot tandem reaction. Beilstein J Org Chem 2014; 10:2286-92. [PMID: 25298796 PMCID: PMC4187034 DOI: 10.3762/bjoc.10.238] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2014] [Accepted: 09/18/2014] [Indexed: 12/22/2022] Open
Abstract
An efficient one-pot tandem cyclization/[3 + 2] cycloaddition reaction of N’-(2-alkynylbenzylidene)hydrazides with ethyl 4,4,4-trifluorobut-2-ynoate under silver triflate-catalyzed or electrophile-mediated conditions is described. Various trifluoromethylated pyrazolo[5,1-a]isoquinolines were afforded in moderate to excellent yield by this developed method.
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Affiliation(s)
- Xiaoli Zhou
- Key Laboratory of Small Functional Organic Molecule, Ministry of Education and Jiangxi's Key Laboratory of green chemistry, Jiangxi Normal University, Nanchang, Jiangxi 330022, P. R. China
| | - Meiling Liu
- Key Laboratory of Small Functional Organic Molecule, Ministry of Education and Jiangxi's Key Laboratory of green chemistry, Jiangxi Normal University, Nanchang, Jiangxi 330022, P. R. China
| | - Puying Luo
- Department of Obstetrics and Gynecology, Jiangxi Provincial people's Hospital, Nanchang, Jiangxi 330006, P. R. China
| | - Yingjun Lai
- Key Laboratory of Small Functional Organic Molecule, Ministry of Education and Jiangxi's Key Laboratory of green chemistry, Jiangxi Normal University, Nanchang, Jiangxi 330022, P. R. China
| | - Tangtao Yang
- Key Laboratory of Small Functional Organic Molecule, Ministry of Education and Jiangxi's Key Laboratory of green chemistry, Jiangxi Normal University, Nanchang, Jiangxi 330022, P. R. China
| | - Qiuping Ding
- Key Laboratory of Small Functional Organic Molecule, Ministry of Education and Jiangxi's Key Laboratory of green chemistry, Jiangxi Normal University, Nanchang, Jiangxi 330022, P. R. China
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20
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Vila C, Lau J, Rueping M. Visible-light photoredox catalyzed synthesis of pyrroloisoquinolines via organocatalytic oxidation/ [3 + 2] cycloaddition/oxidative aromatization reaction cascade with Rose Bengal. Beilstein J Org Chem 2014; 10:1233-8. [PMID: 24991273 PMCID: PMC4077507 DOI: 10.3762/bjoc.10.122] [Citation(s) in RCA: 65] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2014] [Accepted: 04/30/2014] [Indexed: 11/23/2022] Open
Abstract
Pyrrolo[2,1-a]isoquinoline alkaloids have been prepared via a visible light photoredox catalyzed oxidation/[3 + 2] cycloaddition/oxidative aromatization cascade using Rose Bengal as an organo-photocatalyst. A variety of pyrroloisoquinolines have been obtained in good yields under mild and metal-free reaction conditions.
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Affiliation(s)
- Carlos Vila
- Institute of Organic Chemistry, RWTH Aachen University, Landoltweg 1, D-52074 Aachen, Germany
| | - Jonathan Lau
- Institute of Organic Chemistry, RWTH Aachen University, Landoltweg 1, D-52074 Aachen, Germany
| | - Magnus Rueping
- Institute of Organic Chemistry, RWTH Aachen University, Landoltweg 1, D-52074 Aachen, Germany
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21
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Butković K, Marinić Z, Molčanov K, Kojić-Prodić B, Sindler-Kulyk M. Photochemical and thermal intramolecular 1,3-dipolar cycloaddition reactions of new o-stilbene-methylene-3-sydnones and their synthesis. Beilstein J Org Chem 2011; 7:1663-70. [PMID: 22238545 PMCID: PMC3252871 DOI: 10.3762/bjoc.7.196] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2011] [Accepted: 11/11/2011] [Indexed: 12/03/2022] Open
Abstract
New trans- and cis-o-stilbene-methylene-sydnones 3a,b were synthesized by transforming the trans- and cis-o-aminomethylstilbene derivative, obtained by reduction of corresponding o-cyano derivatives, into glycine ester derivatives (43 and 31% yield) followed by hydrolysis (90 and 96% yield), nitrosation and ring closure with acetic acid anhydride (30 and 40% yield). The products were submitted to photochemical and thermal intramolecular [3 + 2] cycloadditions to afford diverse heteropolycyclic compounds. Photochemical reactions afforded cis-3-(4-methylphenyl)-3a,8-dihydro-3H-pyrazolo[5,1-a]isoindole (11, 12.5% yield) and trans-3-(4-methylphenyl)-3a,8-dihydro-3H-pyrazolo[5,1-a]isoindole (12, 5% yield). Thermal reactions afforded 3-(4-methylphenyl)-3,3a,8,8a-tetrahydroindeno[2,1-c]pyrazole (14, 50% yield) and 11-(4-methylphenyl)-9,10-diazatricyclo[7.2.1.02,7]dodeca-2,4,6,10-tetraene (15, 22% yield).
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Affiliation(s)
- Kristina Butković
- Department of Organic Chemistry, Faculty of Chemical Engineering and Technology, University of Zagreb, Marulićev trg 19, 10 000 Zagreb, Croatia
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22
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Santos AD, El Kaim L, Grimaud L, Ronsseray C. Ugi post-condensation copper-triggered oxidative cascade towards pyrazoles. Beilstein J Org Chem 2011; 7:1310-4. [PMID: 22043240 PMCID: PMC3201043 DOI: 10.3762/bjoc.7.153] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2011] [Accepted: 08/26/2011] [Indexed: 11/23/2022] Open
Abstract
Pyrazolidinones were prepared in a two-step sequence starting from α-hydrazonocarboxylic acids. After a four-component Ugi coupling, the resulting hydrazone was engaged in a copper triggered [3 + 2] cycloaddition/aerobic oxidation cascade.
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Affiliation(s)
- Aurélie Dos Santos
- Laboratoire Chimie et Procédés, Laboratoire Chimie et procédés, UMR 7652-DCSO-CNRS- ENSTA-École Polytechnique, École Nationale Supérieure de Techniques Avancées, 32 Bd Victor, Paris 75015, France
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