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Bonsignore R, Thomas SR, Rigoulet M, Jandl C, Pöthig A, Bourissou D, Barone G, Casini A. C-C Cross-Couplings from a Cyclometalated Au(III) C ∧ N Complex: Mechanistic Insights and Synthetic Developments. Chemistry 2021; 27:14322-14334. [PMID: 34310783 PMCID: PMC8597034 DOI: 10.1002/chem.202102668] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2021] [Indexed: 12/11/2022]
Abstract
In recent years, the reactivity of gold complexes was shown to extend well beyond π-activation and to hold promises to achieve selective cross-couplings in several C-C and C-E (E=heteroatom) bond forming reactions. Here, with the aim of exploiting new organometallic species for cross-coupling reactions, we report on the Au(III)-mediated C(sp2 )-C(sp) occurring upon reaction of the cyclometalated complex [Au(CCH2 N)Cl2 ] (1, CCH2 N=2-benzylpyridine) with AgPhCC. The reaction progress has been monitored by NMR spectroscopy, demonstrating the involvement of a number of key intermediates, whose structures have been unambiguously ascertained through 1D and 2D NMR analyses (1 H, 13 C, 1 H-1 H COSY, 1 H-13 C HSQC and 1 H-13 C HMBC) as well as by HR-ESI-MS and X-ray diffraction studies. Furthermore, crystallographic studies have serendipitously resulted in the authentication of zwitterionic Au(I) complexes as side-products arising from cyclization of the coupling product in the coordination sphere of gold. The experimental work has been paralleled and complemented by DFT calculations of the reaction profiles, providing valuable insight into the structure and energetics of the key intermediates and transition states, as well as on the coordination sphere of gold along the whole process. Of note, the broader scope of the cross-coupling at the Au(III) CCH2 N centre has also been demonstrated studying the reaction of 1 with C(sp2 )-based nucleophiles, namely vinyl and heteroaryl tin and zinc reagents. These reactions stand as rare examples of C(sp2 )-C(sp2 ) cross-couplings at Au(III).
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Affiliation(s)
- Riccardo Bonsignore
- Chair of Medicinal and Bioinorganic ChemistryDepartment of ChemistryTechnical University of MunichLichtenbergstr. 485748Garching b. MünchenGermany
| | - Sophie R. Thomas
- Chair of Medicinal and Bioinorganic ChemistryDepartment of ChemistryTechnical University of MunichLichtenbergstr. 485748Garching b. MünchenGermany
- School of ChemistryCardiff UniversityMain BuildingPark PlaceCF10 3ATCardiffUK
| | - Mathilde Rigoulet
- CNRS/Université Paul SabatierLaboratoire Hétérochimie Fondamentale et Appliquée (LHFA, UMR 5069)118 Route de Narbonne31062Toulouse Cedex 09France
| | - Christian Jandl
- Catalysis Research Center & Department of ChemistryTechnical University of MunichErnst-Otto-Fischer Str. 185748Garching b. MünchenGermany
| | - Alexander Pöthig
- Catalysis Research Center & Department of ChemistryTechnical University of MunichErnst-Otto-Fischer Str. 185748Garching b. MünchenGermany
| | - Didier Bourissou
- CNRS/Université Paul SabatierLaboratoire Hétérochimie Fondamentale et Appliquée (LHFA, UMR 5069)118 Route de Narbonne31062Toulouse Cedex 09France
| | - Giampaolo Barone
- Dipartimento di Scienze e Tecnologie Biologiche, Chimiche e FarmaceuticheUniversità degli Studi di PalermoViale delle Scienze, Edificio 1790128PalermoItaly
| | - Angela Casini
- Chair of Medicinal and Bioinorganic ChemistryDepartment of ChemistryTechnical University of MunichLichtenbergstr. 485748Garching b. MünchenGermany
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Kaur J, Saxena M, Rishi N. An Overview of Recent Advances in Biomedical Applications of Click Chemistry. Bioconjug Chem 2021; 32:1455-1471. [PMID: 34319077 DOI: 10.1021/acs.bioconjchem.1c00247] [Citation(s) in RCA: 65] [Impact Index Per Article: 21.7] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Cu(I)-catalyzed azide-alkyne cycloaddition (CuAAC) is a modular and bio-orthogonal approach that is being adopted for the efficient synthesis of organic and bioorganic compounds. It leads to the selective formation of 1,4-disubstituted 1,2,3-triazole units connecting readily accessible building blocks via a stable and biocompatible linkage. The vast array of the bioconjugation applications of click chemistry has been attributed to its fast reaction kinetics, quantitative yields, minimal byproducts, and high chemospecificity and regioselectivity. These combined advantages make click reactions quite suitable for the lead identification and the development of pharmaceutical agents in the fields of medicinal chemistry and drug discovery. In this review, we have outlined the key aspects, the mechanistic details and merits and demerits of the click reaction. In addition, we have also discussed the recent pharmaceutical applications of click chemistry, ranging from the development of anticancer, antibacterial, and antiviral agents to that of biomedical imaging agents and clinical therapeutics.
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Affiliation(s)
- Jasleen Kaur
- Amity Institute of Virology and Immunology, Amity University, Noida 201313, Uttar Pradesh, India
| | - Mokshika Saxena
- Amity Institute of Virology and Immunology, Amity University, Noida 201313, Uttar Pradesh, India
| | - Narayan Rishi
- Amity Institute of Virology and Immunology, Amity University, Noida 201313, Uttar Pradesh, India
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Varala R, Bollikolla HB, Kurmarayuni CM. Synthesis of Pharmacological Relevant 1,2,3-Triazole and its Analogues-A Review. Curr Org Synth 2021; 18:101-124. [DOI: 10.2174/1570179417666200914142229] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2020] [Revised: 07/28/2020] [Accepted: 08/06/2020] [Indexed: 11/22/2022]
Abstract
In this review, authors focus mostly on the various synthetic strategies developed so far for 1,2,3-
triazole scaffold and its derivatives via different approaches such as metal-free, metal assisted or bimetallic. A
brief overview of applications of the very important 1,2,3-triazole scaffold along with pharmacological activity is
also discussed. Synthetic strategies are updated until June 2020.
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Affiliation(s)
- Ravi Varala
- Scrips Pharma, Mallapur, Hyderabad, Telangana-500 076, India
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Kulkarni PS, Karale SN, Khandebharad AU, Agrawal BR, Sarda SR. Synthesis of novel 1,2,3-triazoles bearing 2,4 thiazolidinediones conjugates and their biological evaluation. JOURNAL OF THE IRANIAN CHEMICAL SOCIETY 2021. [DOI: 10.1007/s13738-021-02160-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
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5
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Ma J, Ding S. Transition Metal‐Catalyzed Cycloaddition of Azides with Internal Alkynes. ASIAN J ORG CHEM 2020. [DOI: 10.1002/ajoc.202000486] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Jiahao Ma
- State Key Laboratory of Organic-Inorganic Composites, College of Chemical Engineering Beijing University of Chemical Technology North Third Ring Road 15 Beijing 100029 P. R. China
| | - Shengtao Ding
- State Key Laboratory of Organic-Inorganic Composites, College of Chemical Engineering Beijing University of Chemical Technology North Third Ring Road 15 Beijing 100029 P. R. China
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Deciphering the Mechanism of Silver Catalysis of “Click” Chemistry in Water by Combining Experimental and MEDT Studies. Catalysts 2020. [DOI: 10.3390/catal10090956] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
A combined experimental study and molecular electron density theory (MEDT) analysis was carried out to investigate the click of 1,2,3-triazole derivatives by Ag(I)-catalyzed azide-alkyne cycloaddition (AgAAC) reaction as well as its corresponding mechanistic pathway. Such a synthetic protocol leads to the regioselective formation of 1,4-disubstituted-1,2,3-triazoles in the presence of AgCl as catalyst and water as reaction solvent at room temperature and pressure. The MEDT was performed by applying Density Functional Theory (DFT) calculations at both B3LYP/6-31G(d,p) (LANL2DZ for Ag) and ωB97XD/6-311G(d,p) (LANL2DZ for Ag) levels with a view to decipher the observed regioselectivity in AgAAC reactions, and so to set out the number of silver(I) species and their roles in the formation of 1,4-disubstituted-1,2,3-triazoles. The comparison of the values of the energy barriers for the mono- and dinuclear Ag(I)-acetylide in the AgAAC reaction paths shows that the calculated energy barriers of dinuclear processes are smaller than those of the mononuclear one. The type of intramolecular interactions in the investigated AgAAC click chemistry reaction accounts for the regioselective formation of the 1,4-regiosisomeric triazole isomer. The ionic character of the starting compounds, namely Ag-acetylide, is revealed for the first time. This finding rules out any type of covalent interaction, involving the silver(I) complexes, along the reaction pathway. Electron localization function (ELF) topological analysis of the electronic structure of the stationary points reaffirmed the zw-type (zwitterionic-type) mechanism of the AgAAC reactions.
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Kang X, Li Y, Zhu M, Jin R. Atomically precise alloy nanoclusters: syntheses, structures, and properties. Chem Soc Rev 2020; 49:6443-6514. [PMID: 32760953 DOI: 10.1039/c9cs00633h] [Citation(s) in RCA: 287] [Impact Index Per Article: 71.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Metal nanoclusters fill the gap between discrete atoms and plasmonic nanoparticles, providing unique opportunities for investigating the quantum effects and precise structure-property correlations at the atomic level. As a versatile strategy, alloying can largely improve the physicochemical performances compared to the corresponding homo-metal nanoclusters, and thus benefit the applications of such nanomaterials. In this review, we highlight the achievements of atomically precise alloy nanoclusters, and summarize the alloying principles and fundamentals, including the synthetic methods, site-preferences for different heteroatoms in the templates, and alloying-induced structure and property changes. First, based on various Au or Ag nanocluster templates, heteroatom doping modes are presented. The templates with electronic shell-closing configurations tend to maintain their structures during doping, while the others may undergo transformation and give rise to alloy nanoclusters with new structures. Second, alloy nanoclusters of specific magic sizes are reviewed. The arrangement of different atoms is related to the symmetry of the structures; that is, different atoms are symmetrically located in the nanoclusters of smaller sizes, and evolve into shell-by-shell structures at larger sizes. Then, we elaborate on the alloying effects in terms of optical, electrochemical, electroluminescent, magnetic and chiral properties, as well as the stability and reactivity via comparisons between the doped nanoclusters and their homo-metal counterparts. For example, central heteroatom-induced photoluminescence enhancement is emphasized. The applications of alloy nanoclusters in catalysis, chemical sensing, bio-labeling, and other fields are further discussed. Finally, we provide perspectives on existing issues and future efforts. Overall, this review provides a comprehensive synthetic toolbox and controllable doping modes so as to achieve more alloy nanoclusters with customized compositions, structures, and properties for applications. This review is based on publications available up to February 2020.
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Affiliation(s)
- Xi Kang
- Department of Chemistry and Centre for Atomic Engineering of Advanced Materials, Anhui Province Key Laboratory of Chemistry for Inorganic/Organic Hybrid Functionalized Materials, Anhui University, Hefei, Anhui 230601, China.
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Alexander JR, Packard MH, Hildebrandt AM, Ott AA, Topczewski JJ. Divergent Mechanisms of the Banert Cascade with Propargyl Azides. J Org Chem 2020; 85:3174-3181. [PMID: 31944764 DOI: 10.1021/acs.joc.9b03061] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Triazoles are privileged heterocycles for a variety of applications. The synthesis of 1H-triazoles can be accomplished by the Banert cascade from propargylic azides. Depending on the substrate and conditions, the Banert cascade can proceed by either a sigmatropic or prototropic mechanism. This report describes the first detailed kinetic analysis of the Banert cascade proceeding by both pathways including substituent effects and KIE. The analysis identified the inflection point in the divergent pathways, allowing future work to predict which Banert products are accessible.
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Affiliation(s)
- Juliana R Alexander
- Department of Chemistry, University of Minnesota Twin Cities, Minneapolis, Minnesota 55455, United States
| | - Mary H Packard
- Department of Chemistry, University of Minnesota Twin Cities, Minneapolis, Minnesota 55455, United States
| | - Alanna M Hildebrandt
- Department of Chemistry, University of Minnesota Twin Cities, Minneapolis, Minnesota 55455, United States
| | - Amy A Ott
- Department of Chemistry, University of Minnesota Twin Cities, Minneapolis, Minnesota 55455, United States
| | - Joseph J Topczewski
- Department of Chemistry, University of Minnesota Twin Cities, Minneapolis, Minnesota 55455, United States
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9
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Sultana J, Sarma D. Ag-catalyzed azide-alkyne cycloaddition: copper free approaches for synthesis of 1,4-disubstituted 1,2,3-triazoles. CATALYSIS REVIEWS-SCIENCE AND ENGINEERING 2019. [DOI: 10.1080/01614940.2019.1673443] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Affiliation(s)
- Jasmin Sultana
- Department of Chemistry, Dibrugarh University, Dibrugarh, India
| | - Diganta Sarma
- Department of Chemistry, Dibrugarh University, Dibrugarh, India
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Dotsenko VV, Buryi DS, Lukina DY, Stolyarova AN, Aksenov NA, Aksenova IV, Strelkov VD, Dyadyuchenko LV. Substituted N-(thieno[2,3-b]pyridine-3-yl)acetamides: synthesis, reactions, and biological activity. MONATSHEFTE FUR CHEMIE 2019. [DOI: 10.1007/s00706-019-02505-4] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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11
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Emerging Trends in the Syntheses of Heterocycles Using Graphene-based Carbocatalysts: An Update. Top Curr Chem (Cham) 2019; 377:13. [PMID: 31054016 DOI: 10.1007/s41061-019-0238-3] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2018] [Accepted: 04/16/2019] [Indexed: 01/24/2023]
Abstract
Graphene-based carbocatalysts owing to numerous amazing properties such as large specific surface area, high intrinsic mobility, excellent thermal and electrical conductivities, chemical stability, ease of functionalization, simple method of preparation, effortless recovery and recyclability have gained a superior position amongst the conventional homogeneous and heterogeneous catalysts. In this review, an endeavor has been made to highlight the syntheses of diverse heterocyclic compounds catalyzed by graphene-based catalysts. Further, the study also reveals that all the catalysts could be reused several times without significant loss in their catalytic activity. Additionally, most of the reactions catalyzed by graphene-based carbocatalysts were carried out at ambient temperature and under solvent-free conditions. Thus, the graphene-based catalysts do not merely act as efficient catalysts but also serve as sustainable, green catalysts. This review is divided into various sub-sections, each of which comprehensively describes the preparation of a particular heterocyclic scaffold catalyzed by graphene-derived carbocatalyst in addition to synthesis of graphene oxide and reduced graphene oxide, functionalization, and structural features governing their catalytic properties. Synthesis of heterocycles catalyzed by graphene-based carbocatalysts.
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12
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Regioselective Synthesis, Molecular Descriptors of (1,5‐Disubstituted 1,2,3‐Triazolyl)Coumarin/Quinolone Derivatives and Their Docking Studies against Cancer Targets. ChemistrySelect 2019. [DOI: 10.1002/slct.201900114] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
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13
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Silva PJ, Bernardo CEP. Influence of Alkyne and Azide Substituents on the Choice of the Reaction Mechanism of the Cu +-Catalyzed Addition of Azides to Iodoalkynes. J Phys Chem A 2018; 122:7497-7507. [PMID: 30141932 DOI: 10.1021/acs.jpca.8b06894] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
The cycloaddition of azides to iodoalkynes is strongly enhanced by some Cu+-complexes. We have studied computationally six reaction pathways for the cycloaddition of 24 combinations of azide and iodoalkyne to identify the dominant pathways and the influence of reactant structure on the evolution of the reaction. Two pathways were found to be operating for distinct sets of reactants. In the first pathway, initial complexation of iodoalkyne by Cu+ is followed by the binding of the azide to the metal through its substituted nitrogen atom, followed by attack of the nonhalogenated alkyne carbon by the terminal nitrogen atom. This pathway is generally followed by aromatic or electron-deficient azides, unless the iodoalkyne bears an electron-withdrawing group. The second pathway is a single-step mechanism similar (apart from the alkyne bond weakening caused by complexation) to that observed in the absence of catalyst. Electron-deficient iodoalkynes and methyl azides strongly prefer this mechanism, regardless of the identity of the reaction partners. The catalytic gain obtained through the use of Cu+ depends only partially on its direct effect on the energy of the transition state (relative to that of the infinitely separated reactants) and may be lost if the iodoalkyne itself strongly interacts with the catalyst through the formation of too strong a π-complex.
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Affiliation(s)
- Pedro J Silva
- FP-ENAS/Fac. de Ciências da Saúde , Univ. Fernando Pessoa , Rua Carlos da Maia, 296 , 4200-150 Porto , Portugal
| | - Carlos E P Bernardo
- FP-ENAS/Fac. de Ciências da Saúde , Univ. Fernando Pessoa , Rua Carlos da Maia, 296 , 4200-150 Porto , Portugal
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14
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Chen F. A Facile Route for Cyclic Polyelectrolyte Synthesis without Any Protection or Deprotection Process. POLYMER SCIENCE SERIES B 2018. [DOI: 10.1134/s1560090418050044] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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15
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Bouquet J, King DT, Vadlamani G, Benzie GR, Iorga B, Ide D, Adachi I, Kato A, Vocadlo DJ, Mark BL, Blériot Y, Désiré J. Selective trihydroxylated azepane inhibitors of NagZ, a glycosidase involved in Pseudomonas aeruginosa resistance to β-lactam antibiotics. Org Biomol Chem 2018; 15:4609-4619. [PMID: 28513749 DOI: 10.1039/c7ob00838d] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The synthesis of a series of d-gluco-like configured 4,5,6-trihydroxyazepanes bearing a triazole, a sulfonamide or a fluorinated acetamide moiety at C-3 is described. These synthetic derivatives have been tested for their ability to selectively inhibit the muropeptide recycling glucosaminidase NagZ and to thereby increase sensitivity of Pseudomonas aeruginosa to β-lactams, a pathway with substantial therapeutic potential. While introduction of triazole and sulfamide groups failed to lead to glucosaminidase inhibitors, the NHCOCF3 analog proved to be a selective inhibitor of NagZ over other glucosaminidases including human O-GlcNAcase and lysosomal hexosaminidases HexA and B.
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Affiliation(s)
- J Bouquet
- Equipe Synthèse Organique, Groupe Glycochimie, IC2MP, UMR CNRS 7285, Université de Poitiers, 4 rue Michel Brunet, 86073 Poitiers cedex 09, France.
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Mondal P, Ghosh S, Das SK, Bhaumik A, Das D, Islam SM. Use of an efficient polystyrene-supported cerium catalyst for one-pot multicomponent synthesis of spiro-piperidine derivatives and click reactions in green solvent. Appl Organomet Chem 2018. [DOI: 10.1002/aoc.4227] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Paramita Mondal
- Department of Chemistry; University of Kalyani; Kalyani Nadia 741235 India
- Department of Chemistry; University of Burdwan; Burdwan 713104 WB India
| | - Swarbhanu Ghosh
- Department of Chemistry; University of Kalyani; Kalyani Nadia 741235 India
| | - Sabuj kanti Das
- Department of Material Science; Indian Association for the Cultivation of Science; Kolkata 700032 India
| | - Asim Bhaumik
- Department of Material Science; Indian Association for the Cultivation of Science; Kolkata 700032 India
| | - Debashis Das
- Department of Chemistry; University of Burdwan; Burdwan 713104 WB India
| | - Sk. Manirul Islam
- Department of Chemistry; University of Kalyani; Kalyani Nadia 741235 India
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17
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Das S, Mondal P, Ghosh S, Satpati B, Deka S, Islam SM, Bala T. A facile synthesis strategy to couple porous nanocubes of CeO2 with Ag nanoparticles: an excellent catalyst with enhanced reactivity for the ‘click reaction’ and carboxylation of terminal alkynes. NEW J CHEM 2018. [DOI: 10.1039/c8nj00665b] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
CeO2–Ag nanocomposite was synthesized by modifying the surface of CeO2 with DMP and its catalytic activity was shown for click reaction and carboxylation of terminal alkynes.
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Affiliation(s)
- Subhasis Das
- Department of Chemistry
- University of Calcutta
- Kolkata-700009
- India
| | | | | | - Biswarup Satpati
- Surface Physics and Material Science Division
- Saha Institute of Nuclear Physics
- HBNI
- Kolkata-700064
- India
| | - Sasanka Deka
- Department of Chemistry
- University of Delhi
- Delhi-110007
- India
| | | | - Tanushree Bala
- Department of Chemistry
- University of Calcutta
- Kolkata-700009
- India
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Silver nanoparticles supported over Al 2 O 3 @Fe 2 O 3 core-shell nanoparticles as an efficient catalyst for one-pot synthesis of 1,2,3-triazoles and acylation of benzyl alcohol. MOLECULAR CATALYSIS 2017. [DOI: 10.1016/j.mcat.2017.05.005] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Copper(II)-phenanthroline hybrid material as efficient catalyst for the multicomponent synthesis of 1,2,3-triazoles via sequential azide formation/1,3-dipolar cycloaddition. MOLECULAR CATALYSIS 2017. [DOI: 10.1016/j.molcata.2016.11.017] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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20
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Wang X, Wang X, Wang X, Zhang J, Liu C, Hu Y. In‐situ
Generated and Premade 1‐Copper(I) Alkynes in Cycloadditions. CHEM REC 2017. [DOI: 10.1002/tcr.201700011] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Affiliation(s)
- Xinyan Wang
- Key Laboratory of Bioorganic Phosphorus Chemistry and Chemical Biology (Ministry of Education), Department of ChemistryTsinghua University Beijing 100084 P. R. China
| | - Xingyong Wang
- Key Laboratory of Bioorganic Phosphorus Chemistry and Chemical Biology (Ministry of Education), Department of ChemistryTsinghua University Beijing 100084 P. R. China
| | - Xuesong Wang
- Key Laboratory of Bioorganic Phosphorus Chemistry and Chemical Biology (Ministry of Education), Department of ChemistryTsinghua University Beijing 100084 P. R. China
| | - Jianlan Zhang
- Key Laboratory of Bioorganic Phosphorus Chemistry and Chemical Biology (Ministry of Education), Department of ChemistryTsinghua University Beijing 100084 P. R. China
| | - Chulong Liu
- Key Laboratory of Bioorganic Phosphorus Chemistry and Chemical Biology (Ministry of Education), Department of ChemistryTsinghua University Beijing 100084 P. R. China
| | - Yuefei Hu
- Key Laboratory of Bioorganic Phosphorus Chemistry and Chemical Biology (Ministry of Education), Department of ChemistryTsinghua University Beijing 100084 P. R. China
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Etaiw SEH, Salem IA, Tawfik A. Silver and Copper-Supramolecular Coordination Polymers Inspired Alkyne–Azide Click Reactions. J Inorg Organomet Polym Mater 2016. [DOI: 10.1007/s10904-016-0465-9] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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22
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Zhu L, Brassard CJ, Zhang X, Guha PM, Clark RJ. On the Mechanism of Copper(I)-Catalyzed Azide-Alkyne Cycloaddition. CHEM REC 2016; 16:1501-17. [PMID: 27216993 DOI: 10.1002/tcr.201600002] [Citation(s) in RCA: 65] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2016] [Indexed: 01/07/2023]
Abstract
The copper(I)-catalyzed azide-alkyne cycloaddition (CuAAC) reaction regiospecifically produces 1,4-disubstituted-1,2,3-triazole molecules. This heterocycle formation chemistry has high tolerance to reaction conditions and substrate structures. Therefore, it has been practiced not only within, but also far beyond the area of heterocyclic chemistry. Herein, the mechanistic understanding of CuAAC is summarized, with a particular emphasis on the significance of copper/azide interactions. Our analysis concludes that the formation of the azide/copper(I) acetylide complex in the early stage of the reaction dictates the reaction rate. The subsequent triazole ring-formation step is fast and consequently possibly kinetically invisible. Therefore, structures of substrates and copper catalysts, as well as other reaction variables that are conducive to the formation of the copper/alkyne/azide ternary complex predisposed for cycloaddition would result in highly efficient CuAAC reactions. Specifically, terminal alkynes with relatively low pKa values and an inclination to engage in π-backbonding with copper(I), azides with ancillary copper-binding ligands (aka chelating azides), and copper catalysts that resist aggregation, balance redox activity with Lewis acidity, and allow for dinuclear cooperative catalysis are favored in CuAAC reactions. Brief discussions on the mechanistic aspects of internal alkyne-involved CuAAC reactions are also included, based on the relatively limited data that are available at this point.
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Affiliation(s)
- Lei Zhu
- Department of Chemistry and Biochemistry, Florida State University, 95 Chieftan Way, Tallahassee, FL 32306-4390 (USA)
| | - Christopher J Brassard
- Department of Chemistry and Biochemistry, Florida State University, 95 Chieftan Way, Tallahassee, FL 32306-4390 (USA)
| | - Xiaoguang Zhang
- Department of Chemistry and Biochemistry, Florida State University, 95 Chieftan Way, Tallahassee, FL 32306-4390 (USA)
| | - P M Guha
- Department of Chemistry and Biochemistry, Florida State University, 95 Chieftan Way, Tallahassee, FL 32306-4390 (USA)
| | - Ronald J Clark
- Department of Chemistry and Biochemistry, Florida State University, 95 Chieftan Way, Tallahassee, FL 32306-4390 (USA)
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Asomoza-Solís EO, Rojas-Ocampo J, Toscano RA, Porcel S. Arenediazonium salts as electrophiles for the oxidative addition of gold(i). Chem Commun (Camb) 2016; 52:7295-8. [DOI: 10.1039/c6cc03105f] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
Arenediazonium salts have been found to behave as efficient electrophiles for the oxidation of gold(i). Starting from anilines, a one pot cross-coupling reaction of anilines with silver acetylides mediated by gold has been developed.
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Affiliation(s)
- Eric Omar Asomoza-Solís
- Instituto de Química
- Universidad Nacional Autónoma de México
- Circuito Exterior s/n
- Ciudad Universitaria
- 04510 México D.F
| | - Jonathan Rojas-Ocampo
- Instituto de Química
- Universidad Nacional Autónoma de México
- Circuito Exterior s/n
- Ciudad Universitaria
- 04510 México D.F
| | - Rubén Alfredo Toscano
- Instituto de Química
- Universidad Nacional Autónoma de México
- Circuito Exterior s/n
- Ciudad Universitaria
- 04510 México D.F
| | - Susana Porcel
- Instituto de Química
- Universidad Nacional Autónoma de México
- Circuito Exterior s/n
- Ciudad Universitaria
- 04510 México D.F
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24
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Abstract
In this study, the mechanism of AgAAC reaction has been studied by quantum mechanical calculations to gain insights into this promising reaction and the first successful application of a Ag catalyst alone in AAC.
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Affiliation(s)
- Esra Boz
- Department of Chemistry
- Istanbul Technical University
- Istanbul
- Turkey
| | - Nurcan Ş. Tüzün
- Department of Chemistry
- Istanbul Technical University
- Istanbul
- Turkey
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25
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Efficient Syntheses of 1,2,3-Triazoloamide Derivatives Using Solid- and Solution-Phase Synthetic Approaches. Molecules 2015; 20:19984-20013. [PMID: 26556332 PMCID: PMC6332172 DOI: 10.3390/molecules201119673] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2015] [Revised: 10/28/2015] [Accepted: 10/29/2015] [Indexed: 11/17/2022] Open
Abstract
Efficient synthetic routes for the preparation of secondary and tertiary 1,2,3-triazoloamide derivatives were developed. A secondary α-1,2,3-triazoloamide library was constructed and expanded by a previously developed solid-phase synthetic route and a tertiary 1,2,3-triazoloamide library was constructed by a parallel solution-phase synthetic route. The synthetic routes rely on amide formation with secondary amines and chloro-acid chlorides; SN2 reaction with sodium azide; and the selective [3 + 2] Hüisgen cycloaddition with appropriate terminal alkynes. The target secondary and tertiary 1,2,3-triazoloamide derivatives were obtained with three-diversity points in excellent overall yields and purities using the reported solid- and solution-phase synthetic routes, respectively.
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26
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Bruce MI, Burgun A, George J, Nicholson BK, Parker CR, Skelton BW, Scoleri N, Sumby CJ, Zaitseva NN. Some reactions of azides with diynyl-bis(phosphine)ruthenium-cyclopentadienyl complexes. J Organomet Chem 2015. [DOI: 10.1016/j.jorganchem.2015.08.019] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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27
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Deng X, Liang J, Allison BB, Dvorak C, McAllister H, Savall BM, Mani NS. Allyl-Assisted, Cu(I)-Catalyzed Azide–Alkyne Cycloaddition/Allylation Reaction: Assembly of the [1,2,3]Triazolo-4,5,6,7-tetrahydropyridine Core Structure. J Org Chem 2015; 80:11003-12. [DOI: 10.1021/acs.joc.5b02174] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Xiaohu Deng
- Janssen Research & Development LLC, 3210 Merryfield Row, San Diego, California 92121, United States
| | - Jimmy Liang
- Janssen Research & Development LLC, 3210 Merryfield Row, San Diego, California 92121, United States
| | - Brett B. Allison
- Janssen Research & Development LLC, 3210 Merryfield Row, San Diego, California 92121, United States
| | - Curt Dvorak
- Janssen Research & Development LLC, 3210 Merryfield Row, San Diego, California 92121, United States
| | - Heather McAllister
- Janssen Research & Development LLC, 3210 Merryfield Row, San Diego, California 92121, United States
| | - Brad M. Savall
- Janssen Research & Development LLC, 3210 Merryfield Row, San Diego, California 92121, United States
| | - Neelakandha S. Mani
- Janssen Research & Development LLC, 3210 Merryfield Row, San Diego, California 92121, United States
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28
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AgN(CN)2/DIPEA/H2O-EG: a highly efficient catalytic system for synthesis of 1,4-disubstituted-1,2,3 triazoles at room temperature. Tetrahedron Lett 2015. [DOI: 10.1016/j.tetlet.2015.09.025] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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29
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Font M, Acuña-Parés F, Parella T, Serra J, Luis JM, Lloret-Fillol J, Costas M, Ribas X. Direct observation of two-electron Ag(I)/Ag(III) redox cycles in coupling catalysis. Nat Commun 2014; 5:4373. [DOI: 10.1038/ncomms5373] [Citation(s) in RCA: 59] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2014] [Accepted: 06/11/2014] [Indexed: 01/18/2023] Open
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30
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Connell TU, Schieber C, Silvestri IP, White JM, Williams SJ, Donnelly PS. Copper and Silver Complexes of Tris(triazole)amine and Tris(benzimidazole)amine Ligands: Evidence that Catalysis of an Azide–Alkyne Cycloaddition (“Click”) Reaction by a Silver Tris(triazole)amine Complex Arises from Copper Impurities. Inorg Chem 2014; 53:6503-11. [DOI: 10.1021/ic5008999] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Timothy U. Connell
- School of Chemistry and Bio21
Molecular Science and Biotechnology Institute, University of Melbourne, Parkville 3010, Victoria, Australia
| | - Christine Schieber
- School of Chemistry and Bio21
Molecular Science and Biotechnology Institute, University of Melbourne, Parkville 3010, Victoria, Australia
| | - Ilaria Proietti Silvestri
- School of Chemistry and Bio21
Molecular Science and Biotechnology Institute, University of Melbourne, Parkville 3010, Victoria, Australia
| | - Jonathan M. White
- School of Chemistry and Bio21
Molecular Science and Biotechnology Institute, University of Melbourne, Parkville 3010, Victoria, Australia
| | - Spencer J. Williams
- School of Chemistry and Bio21
Molecular Science and Biotechnology Institute, University of Melbourne, Parkville 3010, Victoria, Australia
| | - Paul S. Donnelly
- School of Chemistry and Bio21
Molecular Science and Biotechnology Institute, University of Melbourne, Parkville 3010, Victoria, Australia
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31
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Salam N, Sinha A, Roy AS, Mondal P, Jana NR, Islam SM. Synthesis of silver–graphene nanocomposite and its catalytic application for the one-pot three-component coupling reaction and one-pot synthesis of 1,4-disubstituted 1,2,3-triazoles in water. RSC Adv 2014. [DOI: 10.1039/c3ra47466f] [Citation(s) in RCA: 88] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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32
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Zavras A, Khairallah GN, Connell TU, White JM, Edwards AJ, Donnelly PS, O'Hair RAJ. Synthesis, Structure and Gas-Phase Reactivity of a Silver Hydride Complex [Ag3{(PPh2)2CH2}3(μ3-H)(μ3-Cl)]BF4. Angew Chem Int Ed Engl 2013; 52:8391-4. [DOI: 10.1002/anie.201302436] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2013] [Indexed: 11/09/2022]
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33
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Zavras A, Khairallah GN, Connell TU, White JM, Edwards AJ, Donnelly PS, O'Hair RAJ. Synthesis, Structure and Gas-Phase Reactivity of a Silver Hydride Complex [Ag3{(PPh2)2CH2}3(μ3-H)(μ3-Cl)]BF4. Angew Chem Int Ed Engl 2013. [DOI: 10.1002/ange.201302436] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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34
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Khairallah GN, Williams CM, Chow S, O'Hair RAJ. sp–sp3Coupling reactions of alkynylsilver cations, RCCAg2+(R = Me and Ph) with allyliodide. Dalton Trans 2013. [DOI: 10.1039/c2dt32143b] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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35
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Connell TU, Sandanayake S, Khairallah GN, White JM, O'Hair RAJ, Donnelly PS, Williams SJ. Halide-ion-templated Ag8Cu6 rhombic dodecahedrons: synthesis, structure and reactivity of [Ag8Cu6(CCtBu)12X]BF4 (X = Cl, Br). Dalton Trans 2013; 42:4903-7. [DOI: 10.1039/c3dt33027c] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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36
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McNulty J, Keskar K. Discovery of a Robust and Efficient Homogeneous Silver(I) Catalyst for the Cycloaddition of Azides onto Terminal Alkynes. European J Org Chem 2012. [DOI: 10.1002/ejoc.201200930] [Citation(s) in RCA: 101] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
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37
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38
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McNulty J, Keskar K, Vemula R. The first well-defined silver(I)-complex-catalyzed cycloaddition of azides onto terminal alkynes at room temperature. Chemistry 2011; 17:14727-30. [PMID: 22125272 DOI: 10.1002/chem.201103244] [Citation(s) in RCA: 117] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2011] [Indexed: 11/07/2022]
Affiliation(s)
- James McNulty
- Department of Chemistry and Chemical-Biology, McMaster University, 1280 Main Street West, Hamilton, Ontario, L8S 4M1, Canada.
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