1
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Jaros SW, Sokolnicki J, Siczek M, Smoleński P. Strategy for an Effective Eco-Optimized Design of Heteroleptic Cu(I) Coordination Polymers Exhibiting Thermally Activated Delayed Fluorescence. Inorg Chem 2023. [PMID: 38010323 DOI: 10.1021/acs.inorgchem.3c01908] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2023]
Abstract
The new series of copper(I) coordination polymers [Cu(N-N)(μ-PTA)]n[PF6]n {N-N = dmbpy (1), bpy (2), ncup (3), and phen (4)} were generated by straightforward reaction in solution or through a mechanochemical route, of [Cu(MeCN)4][PF6] with 1,3,5-triaza-7-phosphaadamantane (PTA) and the corresponding polypyridines, namely, 5,5'-dimethyl-2,2'-bipyridine (dmbpy), 2,2'-bipyridine (bpy), 2,9-dimethyl-1,10-phenanthroline (ncup), and 1,10-phenanthroline (phen). The compounds were obtained as air-stable solids and fully characterized by IR, NMR spectroscopy, and elemental analyses. The molecular structures were confirmed by single-crystal X-ray diffraction analysis (for 1, 2, and 4), revealing infinite one-dimensional (1D) linear chains driven by μ-PTA N,P-linkers. All tested Cu(I) polymeric compounds show emission at room temperature, which was attributed to thermally activated delayed fluorescence (TADF). Evidence of the involvement of the excited singlet state in the emission process is presented. Comparing the photophysical properties of 1 and 2 as well as 3 and 4, of which 1 and 3 have a stiffened structure, by introducing a methyl group to one of the ligands, we demonstrate how TADF properties depend on molecular rigidity. It is shown that stiffening of the structure reduces the flattening distortion around the Cu(I) center in the 3MLCT state. As a result, the ΔE(S1-T1) energy gap becomes smaller and the fluorescence quantum yield increases without significantly extending the emission lifetime. In particular, the ΔE(S1-T1) values for complexes 1 and 3 are among the shortest reported in the scientific literature, 253 and 337 cm-1, and the TADF lifetimes are τ(300 K) = 5.7 and 4.2 μs, respectively. The fluorescence quantum yields for these complexes are measured to be ΦPL(300 K) = 70 and 80%.
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Affiliation(s)
- Sabina W Jaros
- Faculty of Chemistry, University of Wrocław, F. Joliot-Curie 14, 50-383 Wrocław, Poland
| | - Jerzy Sokolnicki
- Faculty of Chemistry, University of Wrocław, F. Joliot-Curie 14, 50-383 Wrocław, Poland
| | - Miłosz Siczek
- Faculty of Chemistry, University of Wrocław, F. Joliot-Curie 14, 50-383 Wrocław, Poland
| | - Piotr Smoleński
- Faculty of Chemistry, University of Wrocław, F. Joliot-Curie 14, 50-383 Wrocław, Poland
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2
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Organomanganese / amido-phosphine (DAPTA) catalyst for rapid cyanosilylation of aldehydes in glycerol and solvent-free conditions at room temperature. Catal Today 2023. [DOI: 10.1016/j.cattod.2023.114056] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/25/2023]
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3
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Pitto-Barry A, Azmanova M, Rafols L, Cooper PA, Seaton CC, Shnyder SD. Anticancer water-soluble organoruthenium complexes: synthesis and preclinical evaluation. Chembiochem 2022; 23:e202200259. [PMID: 35838006 PMCID: PMC9545474 DOI: 10.1002/cbic.202200259] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2022] [Revised: 07/13/2022] [Indexed: 11/18/2022]
Abstract
The synthesis, characterisation, and evaluation of the in vitro cytotoxicity of five maleonitriledithiolate‐based ruthenium metal complexes bearing various phosphine ligands towards two ovarian cancer cell lines (A2780 and A2780cisR), one non‐small‐cell lung cancer cell line (H460) and one normal prostate cell line (PNT2) are presented herein. These 18‐electron complexes were designed with four water‐soluble phosphine ligands to increase the water‐solubility character of the corresponding electron‐deficient ruthenium complex which showed great in vitro promises, and triphenylphosphine for comparison. The complexes with triphenylphosphine‐3,3′,3′′‐trisulfonic acid and triphenylphosphine present similar cytotoxicity compared to the 16‐electron precursor, with equal cytotoxicity to both A2780 and A2780cisR. Hints at the mechanism of action suggest an apoptotic pathway based on reactive oxygen species (ROS) production. No toxicity was observed in preliminary in vivo pilot studies for these two complexes in subcutaneous A2780 and A2780cisR xenograft models, with some evidence of tumour growth delay.
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Affiliation(s)
- Anaïs Pitto-Barry
- CNRS: Centre National de la Recherche Scientifique, Institut Galien Paris-Saclay, Faculté de Pharmacie, Université Paris-Saclay, 5 rue J.-B. Clément, 92290, Châtenay-Malabry, FRANCE
| | - Maria Azmanova
- University of Bradford, School of Chemistry and Biosciences, UNITED KINGDOM
| | - Laia Rafols
- University of Bradford, School of Chemistry and Biosciences, UNITED KINGDOM
| | | | - Colin C Seaton
- University of Bradford, School of Chemistry and Biosciences, UNITED KINGDOM
| | - Steven D Shnyder
- University of Bradford, Institute of Cancer Therapeutics, UNITED KINGDOM
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4
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Heterogeneous Gold Nanoparticle-Based Catalysts for the Synthesis of Click-Derived Triazoles via the Azide-Alkyne Cycloaddition Reaction. Catalysts 2021. [DOI: 10.3390/catal12010045] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
A supported gold nanoparticle-catalyzed strategy has been utilized to promote a click chemistry reaction for the synthesis of 1,2,3-triazoles via the azide-alkyne cycloaddition (AAC) reaction. While the advent of effective non-copper catalysts (i.e., Ru, Ag, Ir) has demonstrated the catalysis of the AAC reaction, additional robust catalytic systems complementary to the copper catalyzed AAC remain in high demand. Herein, Au nanoparticles supported on Al2O3, Fe2O3, TiO2 and ZnO, along with gold reference catalysts (gold on carbon and gold on titania supplied by the World Gold Council) were used as catalysts for the AAC reaction. The supported Au nanoparticles with metal loadings of 0.7–1.6% (w/w relative to support) were able to selectively obtain 1,4-disubstituted-1,2,3-triazoles in moderate yields up to 79% after 15 min, under microwave irradiation at 150 °C using a 0.5–1.0 mol% catalyst loading through a one-pot three-component (terminal alkyne, organohalide and sodium azide) procedure according to the “click” rules. Among the supported Au catalysts, Au/TiO2 gave the best results.
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5
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Librando IL, Mahmoud AG, Carabineiro SAC, Guedes da Silva MFC, Geraldes CFGC, Pombeiro AJL. Synthesis of a Novel Series of Cu(I) Complexes Bearing Alkylated 1,3,5-Triaza-7-phosphaadamantane as Homogeneous and Carbon-Supported Catalysts for the Synthesis of 1- and 2-Substituted-1,2,3-triazoles. NANOMATERIALS (BASEL, SWITZERLAND) 2021; 11:2702. [PMID: 34685140 PMCID: PMC8537716 DOI: 10.3390/nano11102702] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/21/2021] [Revised: 10/05/2021] [Accepted: 10/09/2021] [Indexed: 11/28/2022]
Abstract
The N-alkylation of 1,3,5-triaza-7-phosphaadamantane (PTA) with ortho-, meta- and para-substituted nitrobenzyl bromide under mild conditions afforded three hydrophilic PTA ammonium salts, which were used to obtain a new set of seven water-soluble copper(I) complexes. The new compounds were fully characterized and their catalytic activity was investigated for the low power microwave assisted one-pot azide-alkyne cycloaddition reaction in homogeneous aqueous medium to obtain disubstituted 1,2,3-triazoles. The most active catalysts were immobilized on activated carbon (AC), multi-walled carbon nanotubes (CNT), as well as surface functionalized AC and CNT, with the most efficient support being the CNT treated with nitric acid and NaOH. In the presence of the immobilized catalyst, several 1,4-disubstituted-1,2,3-triazoles were obtained from the reaction of terminal alkynes, organic halides and sodium azide in moderate yields up to 80%. Furthermore, the catalyzed reaction of terminal alkynes, formaldehyde and sodium azide afforded 2-hydroxymethyl-2H-1,2,3-triazoles in high yields up to 99%. The immobilized catalyst can be recovered and recycled through simple workup steps and reused up to five consecutive cycles without a marked loss in activity. The described catalytic systems proceed with a broad substrate scope, under microwave irradiation in aqueous medium and according to "click rules".
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Affiliation(s)
- Ivy L. Librando
- Centro de Química Estrutural, Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais, 1049-001 Lisboa, Portugal; (I.L.L.); (S.A.C.C.); (M.F.C.G.d.S.); (A.J.L.P.)
| | - Abdallah G. Mahmoud
- Centro de Química Estrutural, Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais, 1049-001 Lisboa, Portugal; (I.L.L.); (S.A.C.C.); (M.F.C.G.d.S.); (A.J.L.P.)
- Department of Chemistry, Faculty of Science, Helwan University, Ain Helwan, Cairo 11795, Egypt
| | - Sónia A. C. Carabineiro
- Centro de Química Estrutural, Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais, 1049-001 Lisboa, Portugal; (I.L.L.); (S.A.C.C.); (M.F.C.G.d.S.); (A.J.L.P.)
- LAQV-REQUIMTE, Department of Chemistry, NOVA School of Science and Technology, Universidade NOVA de Lisboa, 2829-516 Caparica, Portugal
| | - M. Fátima C. Guedes da Silva
- Centro de Química Estrutural, Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais, 1049-001 Lisboa, Portugal; (I.L.L.); (S.A.C.C.); (M.F.C.G.d.S.); (A.J.L.P.)
| | - Carlos F. G. C. Geraldes
- Coimbra Chemistry Center, University of Coimbra, Rua Larga Largo D. Dinis, 3004-535 Coimbra, Portugal;
- Department of Life Sciences, Faculty of Science and Technology, Calçada Martim de Freitas, 3000-393 Coimbra, Portugal
| | - Armando J. L. Pombeiro
- Centro de Química Estrutural, Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais, 1049-001 Lisboa, Portugal; (I.L.L.); (S.A.C.C.); (M.F.C.G.d.S.); (A.J.L.P.)
- Research Institute of Chemistry, Peoples’ Friendship University of Russia (RUDN University), 6 Miklukho-Maklaya Street, 117198 Moscow, Russia
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6
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Mahmoud AG, Guedes da Silva MFC, Pombeiro AJL. A new amido-phosphane as ligand for copper and silver complexes. Synthesis, characterization and catalytic application for azide-alkyne cycloaddition in glycerol. Dalton Trans 2021; 50:6109-6125. [PMID: 33973609 DOI: 10.1039/d1dt00992c] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
The new sterically hindered amido-phosphane 1,3,7-triaza-5-phosphabicyclo[3.3.1]nonane-3,7-diylbis(phenylmethanone), DBPTA (1), has been obtained via an open-cage double N-acylation of 1,3,5-triaza-7-phosphadamantane (PTA) using benzoic anhydride. DBPTA is the only acyl derivative of PTA that contains an aromatic appendage. Due to the bulky nature of the benzoyl C(O)Ph groups, they exhibit mutual anti configuration as confirmed by solution NMR and single crystal X-ray diffraction. Compound 1 is readily soluble in common polar organic and green solvents, making it a very versatile ligand that could be used in a variety of reaction systems. To assess the coordination characteristics of the new phosphane, seven copper complexes of formulas [Cu(DBPTA)4]BF4 (2), [CuX(DBPTA)3] {X = Br (3) and I (4)}, [Cu(μ-X)(DBPTA)2]2 {X = Br (5) and I (6)}, [Cu(bpy)(DBPTA)2]Y {Y = BF4 (7) and BPh4 (8)} {bpy = 2,2'-bipyridine}, and three silver complexes with formulas [Ag(DBPTA)4]NO3 (9), [Ag(Tpm*)(DBPTA)]NO3 (10) and [Ag(Tpms)(DBPTA)] (11) {Tpm* = tris(3,5-dimethyl-1-pyrazolyl)methane, Tpms = tris(pyrazol-1-yl)methanesulfonate} have been synthesised. Compounds 1-11 were characterized by elemental analyses and electrospray ionization mass spectrometry (ESI-MS), as well as by FT-IR and NMR (1H, 13C, 31P, COSY and HSQC) spectroscopic techniques. The catalytic activity of the complexes has been investigated for 1,3-dipolar azide-alkyne cycloaddition reaction using glycerol as a reaction medium to afford 1,4-disubstituted-1,2,3-triazoles. Complex 7 was found to be the most efficient catalyst, affording triazoles in yields up to 97% after 18 h under standard bench experimental conditions (at 23 °C, aerobic conditions and in the absence of any additional bases) and up to 98% after 15 minutes under microwave irradiation (125 °C, 30 W). The catalysis proceeds with a broad substrate scope according to "Click" rules providing a significant contribution to "Green Chemistry".
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Affiliation(s)
- Abdallah G Mahmoud
- Department of Chemistry, Faculty of Science, Helwan University, Ain Helwan, 11795 Cairo, Egypt and Centro de Química Estrutural, Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais, 1049-001 Lisboa, Portugal.
| | - M Fátima C Guedes da Silva
- Centro de Química Estrutural, Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais, 1049-001 Lisboa, Portugal.
| | - Armando J L Pombeiro
- Centro de Química Estrutural, Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais, 1049-001 Lisboa, Portugal. and Peoples' Friendship University of Russia (RUDN University), 6 Miklukho-Maklaya Street, Moscow 117198, Russian Federation
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7
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Gulati S, John SE, Shankaraiah N. Microwave-assisted multicomponent reactions in heterocyclic chemistry and mechanistic aspects. Beilstein J Org Chem 2021; 17:819-865. [PMID: 33968258 PMCID: PMC8077743 DOI: 10.3762/bjoc.17.71] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2020] [Accepted: 04/01/2021] [Indexed: 12/13/2022] Open
Abstract
Microwave-assisted (MWA) multicomponent reactions (MCRs) have successfully emerged as one of the useful tools in the synthesis of biologically relevant heterocycles. These reactions are strategically employed for the generation of a variety of heterocycles along with multiple point diversifications. Over the last few decades classical MCRs such as Ugi, Biginelli, etc. have witnessed enhanced yield and efficiency with microwave assistance. The highlights of MWA-MCRs are high yields, reduced reaction time, selectivity, atom economy and simpler purification techniques, such an approach can accelerate the drug discovery process. The present review focuses on the recent advances in MWA-MCRs and their mechanistic insights over the past decade and shed light on its advantage over the conventional approach.
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Affiliation(s)
- Shivani Gulati
- Department of Medicinal Chemistry, National Institute of Pharmaceutical Education and Research (NIPER), Hyderabad 500 037, India
| | - Stephy Elza John
- Department of Medicinal Chemistry, National Institute of Pharmaceutical Education and Research (NIPER), Hyderabad 500 037, India
| | - Nagula Shankaraiah
- Department of Medicinal Chemistry, National Institute of Pharmaceutical Education and Research (NIPER), Hyderabad 500 037, India
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8
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Qin Q, Xu G, Liu Y, Ma J. Resorcin[4]arene‐based Cu(I) binuclear and mononuclear complexes as efficient catalysts for azide‐alkyne cycloaddition reactions. Appl Organomet Chem 2021. [DOI: 10.1002/aoc.6146] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Qian Qin
- Key Lab of Polyoxometalate Science, Department of Chemistry Northeast Normal University Changchun China
| | - Guo‐Hai Xu
- Key Laboratory of Jiangxi University for Functional Materials Chemistry, School of Chemistry and Chemical Engineering Gannan Normal University Ganzhou China
| | - Ying‐Ying Liu
- Key Lab of Polyoxometalate Science, Department of Chemistry Northeast Normal University Changchun China
| | - Jian‐Fang Ma
- Key Lab of Polyoxometalate Science, Department of Chemistry Northeast Normal University Changchun China
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9
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Cao M, Zhao Y, Gu M, Liu C, Zhu Q, Chen Y, Wei B, Du C, Zhang B. Syntheses, Crystal Structures and Photophysical Properties of Dinuclear Copper(I) Complexes Bearing Diphenylphosphino‐Substituted Benzimidazole Ligands. ChemistrySelect 2021. [DOI: 10.1002/slct.202004251] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Mengmeng Cao
- College of Chemistry Zhengzhou University Zhengzhou 450001 P. R. China
| | - Yi Zhao
- Microelectronic R&D Center, School of Mechatronic Engineering and Automation Shanghai University Shanghai 200072 P. R. China
| | - Mengsi Gu
- College of Chemistry Zhengzhou University Zhengzhou 450001 P. R. China
| | - Chunmei Liu
- College of Chemistry Zhengzhou University Zhengzhou 450001 P. R. China
| | - Qianqian Zhu
- College of Chemistry Zhengzhou University Zhengzhou 450001 P. R. China
| | - Yahui Chen
- College of Chemistry Zhengzhou University Zhengzhou 450001 P. R. China
| | - Bin Wei
- Microelectronic R&D Center, School of Mechatronic Engineering and Automation Shanghai University Shanghai 200072 P. R. China
| | - Chenxia Du
- College of Chemistry Zhengzhou University Zhengzhou 450001 P. R. China
| | - Bin Zhang
- College of Chemistry Zhengzhou University Zhengzhou 450001 P. R. China
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10
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Schlatzer T, Breinbauer R. Synthesis of Hydrophilic Phosphorus Ligands and Their Application in Aqueous-Phase Metal-Catalyzed Reactions. Adv Synth Catal 2021; 363:668-687. [PMID: 33679278 PMCID: PMC7898532 DOI: 10.1002/adsc.202001278] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2020] [Revised: 12/02/2020] [Indexed: 11/22/2022]
Abstract
Transition metal-catalyzed reactions in aqueous media are experiencing a constant increase in interest. In homogenous catalysis the use of water as a solvent offers advantages in cost, safety, the possibility of two-phase catalysis and simplified separation strategies. In the life sciences, transition metal catalysis in aqueous systems enables the ligation or modification of biopolymers in buffer systems or even in their cellular environment. In biocatalysis, aqueous systems allow the simultaneous use of enzymes and transition metal catalysts in cascade reactions. The use of water-soluble phosphine ligands still represents the most reliable and popular strategy for transferring metal catalysts into the aqueous phase. This review summarizes the recent advancements in this field since 2009 and describes current synthetic strategies for the preparation of hydrophilic phosphines and phosphites. In addition, recent applications of transition metal catalysis in aqueous solvents using these hydrophilic ligands are presented.
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Affiliation(s)
- Thomas Schlatzer
- Institute of Organic ChemistryGraz University of TechnologyStremayrgasse 9A-8010GrazAustria phone
| | - Rolf Breinbauer
- Institute of Organic ChemistryGraz University of TechnologyStremayrgasse 9A-8010GrazAustria phone
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11
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Mahmoud AG, Guedes da Silva MFC, Pombeiro AJ. 3,7-Diacetyl-1,3,7-triaza-5-phosphabicyclo[3.3.1]nonane (DAPTA) and derivatives: Coordination chemistry and applications. Coord Chem Rev 2021. [DOI: 10.1016/j.ccr.2020.213614] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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12
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The Catalytic Activity of Carbon-Supported Cu(I)-Phosphine Complexes for the Microwave-Assisted Synthesis of 1,2,3-Triazoles. Catalysts 2021. [DOI: 10.3390/catal11020185] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
A set of Cu(I) complexes with 3,7-diacetyl-1,3,7-triaza-5-phosphabicyclo-[3.3.1]nonane (DAPTA) phosphine ligands viz. [CuX(κP-DAPTA)3] (1: X = Br; 2: X = I) and [Cu(μ-X)(κP-DAPTA)2]2 (3: X = Br; 4: X = I) were immobilized on activated carbon (AC) and multi-walled carbon nanotubes (CNT), as well as on these materials after surface functionalization. The immobilized copper(I) complexes have shown favorable catalytic activity for the one-pot, microwave-assisted synthesis of 1,2,3-triazoles via the azide-alkyne cycloaddition reaction (CuAAC). The heterogenized systems with a copper loading of only 1.5–1.6% (w/w relative to carbon), established quantitative conversions after 15 min, at 80 °C, using 0.5 mol% of catalyst loading (relative to benzyl bromide). The most efficient supports concerning heterogenization were CNT treated with nitric acid and NaOH, and involving complexes 2 and 4 (in the same order, 2_CNT-ox-Na and 4_CNT-ox-Na). The immobilized catalysts can be recovered and recycled by simple workup and reused up to four consecutive cycles although with loss of activity.
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13
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Pyridinyl-triazole ligand systems for highly efficient CuI-catalyzed azide-alkyne cycloaddition. CATAL COMMUN 2021. [DOI: 10.1016/j.catcom.2020.106165] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
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14
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Abstract
Cross-coupling reactions furnishing carbon–carbon (C–C) and carbon–heteroatom (C–X) bond is one of the most challenging tasks in organic syntheses. The early developed reaction protocols by Ullmann, Ullman–Goldberg, Cadiot–Chodkiewicz, Castro–Stephens, and Corey–House, utilizing elemental copper or its salts as catalyst have, for decades, attracted and inspired scientists. However, these reactions were suffering from the range of functional groups tolerated as well as severely restricted by the harsh reaction conditions often required high temperatures (150–200 °C) for extended reaction time. Enormous efforts have been paid to develop and achieve more sustainable reaction conditions by applying the microwave irradiation. The use of controlled microwave heating dramatically reduces the time required and therefore resulting in increase in the yield as well as the efficiency of the reaction. This review is mainly focuses on the recent advances and applications of copper catalyzed cross-coupling generation of carbon–carbon and carbon–heteroatom bond under microwave technology.
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15
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Water-Soluble O-, S- and Se-Functionalized Cyclic Acetyl-triaza-phosphines. Synthesis, Characterization and Application in Catalytic Azide-alkyne Cycloaddition. Molecules 2020; 25:molecules25225479. [PMID: 33238623 PMCID: PMC7700463 DOI: 10.3390/molecules25225479] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2020] [Revised: 11/18/2020] [Accepted: 11/19/2020] [Indexed: 11/16/2022] Open
Abstract
The 3,7-diacetyl-1,3,7-triaza-5-phosphabicyclo[3.3.1]nonane (DAPTA) derivatives, viz. the already reported 3,7-diacetyl-1,3,7-triaza-5-phosphabicyclo[3.3.1]nonane 5-oxide (DAPTA=O, 1), the novel 3,7-diacetyl-1,3,7-triaza-5-phosphabicyclo[3.3.1]nonane-5-sulfide (DAPTA=S, 2), and 3,7-diacetyl-1,3,7-triaza-5-phosphabicyclo[3.3.1]nonane-5-selenide (DAPTA=Se, 3), have been synthesized under mild conditions. They are soluble in water and most common organic solvents and have been characterized using 1H and 31P NMR spectroscopy and, for 2 and 3, also by single crystal X-ray diffraction. The effect of O, S, or Se at the phosphorus atom on the structural features of the compounds has been investigated, also through the analyses of Hirshfeld surfaces. The presence of 1–3 enhances the activity of copper for the catalytic azide-alkyne cycloaddition reaction in an aqueous medium. The combination of cheaply available copper (II) acetate and compound 1 has been used as a catalyst for the one-pot and 1,4-regioselective procedure to obtain 1,2,3-triazoles with high yields and according to ‘click rules’.
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16
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Noriega S, Leyva E, Moctezuma E, Flores L, Loredo-Carrillo S. Recent Catalysts Used in the Synthesis of 1,4-Disubstituted 1,2,3-Triazoles by Heterogeneous and Homogeneous Methods. CURR ORG CHEM 2020. [DOI: 10.2174/1385272824666200226120135] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
1,2,3-triazoles are popular heterocycles employed in material sciences and medicinal
chemistry as they show antiviral, antibacterial, anti-HIV, antitubercular, and antifungal
activities. Triazoles are appealing due to their stability and interesting click chemistry
properties. The Cu(I) catalyzed reaction between azides and alkynes affords the 1,4-
disubstituted derivative exclusively becoming a useful synthetic tool. However, one of the
main drawbacks of the catalyzed reaction is the need to use Cu(I), which is unstable at
standard conditions and rapidly oxidizes to the non-active Cu(II). The most common approach
when synthesizing 1,4-disubstituted-1,2,3-triazoles is to reduce Cu in situ employing
inorganic Cu salts and a reducing agent. The resulting Cu(I) needs to be further stabilized
with organic ligands for the reaction to take place. The aim of homogeneous catalysis
is to produce a ligand with a dual function both in reducing and stabilizing Cu(I) without interfering in the
overall reaction. Instead, heterogeneous catalysis offers more options when supporting Cu on nanoparticles,
complexes, and composites yielding the desired 1,2,3-triazoles in most cases without the need of a reducing
agent under green solvents such as ethanol and water. The catalytic activity of Ag, Ru, and Ce is also discussed.
This review exemplifies how the use of homogeneous and heterogeneous catalysts offers new and
green methodologies for the synthesis of 1,2,3-triazole derivatives. The materials supporting Cu show catalytic
properties like high surface area, acid-base sites or phase transfer. Although there is no ideal catalyst, Cu remains
the most effective metal since it is economical, abundant and readily available.
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Affiliation(s)
- Saúl Noriega
- Facultad de Ciencias Quimicas, Universidad Autonoma de San Luis Potosí, Av. Manuel Nava # 6, San Luis Potosí, S.L.P., 78210, Mexico
| | - Elisa Leyva
- Facultad de Ciencias Quimicas, Universidad Autonoma de San Luis Potosí, Av. Manuel Nava # 6, San Luis Potosí, S.L.P., 78210, Mexico
| | - Edgar Moctezuma
- Facultad de Ciencias Quimicas, Universidad Autonoma de San Luis Potosí, Av. Manuel Nava # 6, San Luis Potosí, S.L.P., 78210, Mexico
| | - Luisa Flores
- Facultad de Ciencias Quimicas, Universidad Autonoma de San Luis Potosí, Av. Manuel Nava # 6, San Luis Potosí, S.L.P., 78210, Mexico
| | - Silvia Loredo-Carrillo
- Facultad de Ciencias Quimicas, Universidad Autonoma de San Luis Potosí, Av. Manuel Nava # 6, San Luis Potosí, S.L.P., 78210, Mexico
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17
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Li JF, Du P, Liu YY, Xu GH, Ma JF. Three thiacalix[4]arene-based Cu(i) coordination polymers: catalytic activities for azide-alkyne cycloaddition reactions and luminescence properties. Dalton Trans 2020; 49:3715-3722. [PMID: 31559408 DOI: 10.1039/c9dt03060c] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
Three new coordination polymers, [Cu2(CN)(L)(OCH3)]·CH3OH·3H2O (1), [Cu3(Br)3(L)] (2) and [Cu(I)(L)]·1.5H2O (3), have been solvothermally prepared by reacting L (5,11,17,23-tetra-tert-butyl-25,26,27,28-tetra[(3-pyridylmethyl)oxy]-2,8,14,20-tetrathiacalix[4]arene) with Cu(i) halide. 1 and 2 exhibit layers. 3 displays a chain, a supramolecular layer constructed by hydrogen bonds. The performance of 1-3 was examined as heterogeneous catalysts for azide-alkyne cycloaddition reactions. Most strikingly, 1 and 2 show predominant efficiency with high regioselectivity and excellent recyclability. Remarkably, solids 1-3 all have luminescence characteristics under irradiation with a UV lamp.
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Affiliation(s)
- Jian-Fang Li
- Key Lab of Polyoxometalate Science, Department of Chemistry, Northeast Normal University, Changchun 130024, China.
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18
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Śliwa EI, Śliwińska-Hill U, Bażanów B, Siczek M, Kłak J, Smoleński P. Synthesis, Structural, and Cytotoxic Properties of New Water-Soluble Copper(II) Complexes based on 2,9-Dimethyl-1,10-Phenanthroline and Their One Derivative Containing 1,3,5-Triaza-7-Phosphaadamantane-7-Oxide. Molecules 2020; 25:molecules25030741. [PMID: 32046362 PMCID: PMC7037393 DOI: 10.3390/molecules25030741] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2019] [Revised: 02/04/2020] [Accepted: 02/05/2020] [Indexed: 11/16/2022] Open
Abstract
A series of water-soluble copper(II) complexes based on 2,9-dimethyl-1,10-phenanthroline (dmphen) and mixed-ligands, containing PTA=O (1,3,5-triaza-7-phosphaadamantane-7-oxide) have been synthesized and fully characterized. Two types of complexes have been obtained, monocationic [Cu(NO3)(O-PTA=O)(dmphen)][PF6] (1), [Cu(Cl)(dmphen)2][PF6] (2), and neutral [Cu(NO3)2(dmphen)] (3). The solid-state structures of all complexes have been determined by single-crystal X-ray diffraction. Magnetic studies for the complex 1–3 indicated a very weak antiferromagnetic interaction between copper(II) ions in crystal lattice. Complexes were successfully evaluated for their cytotoxic activities on the normal human dermal fibroblast (NHDF) cell line and the antitumor activity using the human lung carcinoma (A549), epithelioid cervix carcinoma (HeLa), colon (LoVo), and breast adenocarcinoma (MCF-7) cell lines. Complexes 1 and 3 revealed lower toxicity to NHDF than A549 and HeLa cells, meanwhile compound 2 appeared to be more toxic to NHDF cell line in comparison to all cancer lines. Additionally, interactions between the complexes and human apo-transferrin (apo-Tf) using fluorescence and circular dichroism (CD) spectroscopy were also investigated. All compounds interacted with apo-transferrin, causing same changes of the protein conformation. Electrostatic interactions dominate in the 1/2 – apo- Tf systems and hydrophobic and ionic interactions in the case of 3.
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Affiliation(s)
- Ewelina I. Śliwa
- Faculty of Chemistry, University of Wrocław, ul. F. Joliot-Curie 14, 50-383 Wrocław, Poland; (E.I.Ś.); (M.S.); (J.K.)
| | - Urszula Śliwińska-Hill
- Department of Analytical Chemistry, Faculty of Pharmacy, Wroclaw Medical University, Borowska 211 A, 50-566 Wrocław, Poland;
| | - Barbara Bażanów
- Department of Pathology, Wrocław University of Environmental and Life Sciences, ul. Norwida 31, 50-375 Wrocław, Poland;
| | - Miłosz Siczek
- Faculty of Chemistry, University of Wrocław, ul. F. Joliot-Curie 14, 50-383 Wrocław, Poland; (E.I.Ś.); (M.S.); (J.K.)
| | - Julia Kłak
- Faculty of Chemistry, University of Wrocław, ul. F. Joliot-Curie 14, 50-383 Wrocław, Poland; (E.I.Ś.); (M.S.); (J.K.)
| | - Piotr Smoleński
- Faculty of Chemistry, University of Wrocław, ul. F. Joliot-Curie 14, 50-383 Wrocław, Poland; (E.I.Ś.); (M.S.); (J.K.)
- Correspondence: ; Tel.: +48-713-757-225
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19
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Jin XX, Li T, Shi DP, Luo LJ, Su QQ, Xiang J, Xu HB, Leung CF, Zeng MH. Luminescent phosphine copper( i) complexes with various functionalized bipyridine ligands: synthesis, structures, photophysics and computational study. NEW J CHEM 2020. [DOI: 10.1039/c9nj05887g] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
A new series of luminescent phosphine copper(i) complexes with cyano- and hydroxyl-substituted 2,2′-bipyridine ligands have been synthesized and structurally characterized. Their luminescent properties have also been investigated in detail.
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Affiliation(s)
- Xin-Xin Jin
- College of Chemistry and Environmental Engineering
- Yangtze University
- Jingzhou 434020
- P. R. China
| | - Tian Li
- Hubei Collaborative Innovation Center for Advanced Organic Chemical Materials
- Ministry-of-Education Key Laboratory for the Synthesis and Application of Organic Functional Molecules & College of Chemistry & Chemical Engineering
- Hubei University
- Wuhan 430062
- China
| | - Dong-Po Shi
- College of Chemistry and Environmental Engineering
- Yangtze University
- Jingzhou 434020
- P. R. China
| | - Li-Juan Luo
- College of Chemistry and Environmental Engineering
- Yangtze University
- Jingzhou 434020
- P. R. China
| | - Qian-Qian Su
- College of Chemistry and Environmental Engineering
- Yangtze University
- Jingzhou 434020
- P. R. China
| | - Jing Xiang
- College of Chemistry and Environmental Engineering
- Yangtze University
- Jingzhou 434020
- P. R. China
| | - Hai-Bing Xu
- Hubei Collaborative Innovation Center for Advanced Organic Chemical Materials
- Ministry-of-Education Key Laboratory for the Synthesis and Application of Organic Functional Molecules & College of Chemistry & Chemical Engineering
- Hubei University
- Wuhan 430062
- China
| | - Chi-Fai Leung
- Department of Science and Environmental Studies
- The Education University of Hong Kong
- Tai Po
- China
| | - Ming-Hua Zeng
- Hubei Collaborative Innovation Center for Advanced Organic Chemical Materials
- Ministry-of-Education Key Laboratory for the Synthesis and Application of Organic Functional Molecules & College of Chemistry & Chemical Engineering
- Hubei University
- Wuhan 430062
- China
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20
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Salah BA, Kandil AT, Abd El-Nasser MG. Synthesis, molecular docking and computational studies of novel hydrazone complexes. JOURNAL OF RADIATION RESEARCH AND APPLIED SCIENCES 2019. [DOI: 10.1080/16878507.2019.1683273] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Affiliation(s)
- Bahaa A. Salah
- Department of Chemistry, Faculty of Science, Helwan University, Cairo, Egypt
| | - A. T. Kandil
- Department of Chemistry, Faculty of Science, Helwan University, Cairo, Egypt
| | - M. G. Abd El-Nasser
- Department of Chemistry, Faculty of Science, Helwan University, Cairo, Egypt
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21
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Jaros SW, Sliwińska-Hill U, Białońska A, Nesterov DS, Kuropka P, Sokolnicki J, Bażanów B, Smoleński P. Light-stable polypyridine silver(i) complexes of 1,3,5-triaza-7-phosphaadamantane (PTA) and 1,3,5-triaza-7-phosphaadamantane-7-sulfide (PTA[double bond, length as m-dash]S): significant antiproliferative activity of representative examples in aqueous media. Dalton Trans 2019; 48:11235-11249. [PMID: 31237306 DOI: 10.1039/c9dt01646e] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
A series of novel silver(i) 2,2':6',2''-terpyridine (tpy), 4'-(4-methylphenyl)-2,2':6':2''-terpyridine (tpy-Ph-Me) and 1,10-phenanthroline-5,6-dione (dione) derivatives containing PTA (1,3,5-triaza-7-phosphaadamantane) or 1,3,5-triaza-7-phosphaadamantane-7-sulfide (PTA[double bond, length as m-dash]S) have been synthesized and fully characterized. Two types of complexes have been obtained, monocationic [Ag(tpy)(PTA)](NO3) (1), [Ag(tpy-Ph-Me)(PTA)](NO3) (2), [Ag(dione)(PTA[double bond, length as m-dash]S)](BF4) (4) and [Ag(dione)2](PF6) (5) and neutral [Ag(dione)(PTA[double bond, length as m-dash]S)(NO3)] (3). The solid-state structures of four complexes have been determined by single-crystal X-ray diffraction. Complexes 1 and 2 are luminescent at room temperature and 77 K while 5 shows emission only at 77 K. Compounds 3 and 4 are not emissive. Furthermore, representative light-stable and water-soluble 1 and 3 were evaluated for their cytotoxic activities on the normal human dermal fibroblast (NHDF) cell line and their antitumor activity using the human lung carcinoma (A549), epithelioid cervix carcinoma (HeLa) and human breast adenocarcinoma (MCF-7) cell lines. Interactions between the complexes and human serum albumin (HSA) using UV-Vis, fluorescence and circular dichroism spectroscopy (CD) were also investigated.
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Affiliation(s)
- Sabina W Jaros
- Faculty of Chemistry, University of Wroclaw, F. Joliot-Curie 14, 50-383 Wrocław, Poland.
| | - Urszula Sliwińska-Hill
- Department of Analytical Chemistry, Faculty of Pharmacy, Wroclaw Medical University, Borowska 211 A, 50-566 Wrocław, Poland
| | - Agata Białońska
- Department of Analytical Chemistry, Faculty of Pharmacy, Wroclaw Medical University, Borowska 211 A, 50-566 Wrocław, Poland
| | - Dmytro S Nesterov
- Centro de Química Estrutural, Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais, 1049-001 Lisboa, Portugal
| | - Piotr Kuropka
- Department of Histology and Embryology, Wroclaw University of Environmental and Life Sciences, Norwida 31, 50-375 Wrocław, Poland
| | - Jerzy Sokolnicki
- Faculty of Chemistry, University of Wroclaw, F. Joliot-Curie 14, 50-383 Wrocław, Poland.
| | - Barbara Bażanów
- Department of Veterinary Microbiology, Wrocław University of Environmental and Life Sciences, Norwida 31, 50-375 Wrocław, Poland
| | - Piotr Smoleński
- Faculty of Chemistry, University of Wroclaw, F. Joliot-Curie 14, 50-383 Wrocław, Poland.
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22
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Singh AK, Yadav CL, Mishra KB, Singh SK, Gupta AN, Tiwari VK, Drew MG, Singh N. Highly efficient and recyclable pre-catalysts based on mono- and dinuclear heteroleptic Cu(I) dithio- PPh3 complexes to produce variety of glycoconjugate triazoles. MOLECULAR CATALYSIS 2019. [DOI: 10.1016/j.mcat.2019.03.009] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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23
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Mahmoud AG, Guedes da Silva MFC, Mahmudov KT, Pombeiro AJL. Arylhydrazone ligands as Cu-protectors and -catalysis promoters in the azide-alkyne cycloaddition reaction. Dalton Trans 2019; 48:1774-1785. [PMID: 30640328 DOI: 10.1039/c8dt04771e] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
A series of water soluble copper(ii) complexes, [Cu(κO1O2N-H2L1)(H2O)2]·2H2O (2), [Cu(κO-H3L1)2(H2O)4] (3), [Cu(κO-H4L2)2(H2O)4] (5) and [Cu(H2O)6]·2H2L3·2(CH3)2NCHO (7), were prepared by the reaction of Cu(NO3)2·3H2O with sodium (Z)-2-(2-(1-amino-1,3-dioxobutan-2-ylidene)hydrazineyl)benzenesulfonate, [Na(μ4-1:2κO1,2κO2,3κO3,4κO4-H3L1)]n (1; for 2 and 3), sodium (Z)-3-(2-(1-amino-1,3-dioxobutan-2-ylidene)hydrazineyl)-4-hydroxybenzene-sulfonate, [Na(μ-1κO1,2κO2-H4L2)]2 (4; for 5) or sodium (Z)-2-(2-(1,3-dioxo-1-(phenylamino)butan-2-ylidene)hydrazineyl)naphthalene-1-sulfonate, [Na(μ-1κO1O2,2κO3-H2L3)(CH3OH)2]2 (6; for 7). Compounds 1-7 were fully characterized, also by single-crystal X-ray diffraction analysis, and applied as homogeneous catalysts for the azide-alkyne cycloaddition (AAC) reaction to afford 1,4-disubstituted 1,2,3-triazoles. A structure-catalytic activity relationship has been recognized for the first time on the basis of the occurrence of resonance- and charge-assisted hydrogen bond interactions (RAHB and CAHB), in charge and ligand binding modes, enabling the catalytic activity of the compounds to be ordered as follows: Cu(NO3)2≪7 (complex salt with RAHB and CAHB) < 3 (with RAHB and CAHB) < 5 (with RAHB) < 2 (neither RAHB nor CAHB). Complex 2, without such non-covalent interactions, was found to be the most efficient catalyst for the AAC reaction, affording up to 98% product yield after being placed for 15 min, at 125 °C, in a water/acetonitrile mixture under low power (10 W) MW irradiation.
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Affiliation(s)
- Abdallah G Mahmoud
- Centro de Química Estrutural, Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais, 1049-001 Lisboa, Portugal. and Department of Chemistry, Faculty of Science, Helwan University, Ain Helwan, 11795 Cairo, Egypt
| | - M Fátima C Guedes da Silva
- Centro de Química Estrutural, Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais, 1049-001 Lisboa, Portugal.
| | - Kamran T Mahmudov
- Centro de Química Estrutural, Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais, 1049-001 Lisboa, Portugal. and Department of Chemistry, Baku State University, Z. Xalilov Str. 23, Az 1148 Baku, Azerbaijan.
| | - Armando J L Pombeiro
- Centro de Química Estrutural, Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais, 1049-001 Lisboa, Portugal.
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24
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Liu YL, Yan L, Liu YY, Xu GH, Shi WJ, Ma JF. Cu(I) coordination polymer based on pyridyl-functionalized resorcin[4]arene: Selective detection of Cr2O72−, MnO4− and nitrobenzene and efficient catalyst for azide–alkyne cycloaddition reaction. Polyhedron 2019. [DOI: 10.1016/j.poly.2018.11.032] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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25
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Kumari K, Singh AS, Manar KK, Yadav CL, Tiwari VK, Drew MGB, Singh N. Catalytic activity of new heteroleptic [Cu(PPh3)2(β-oxodithioester)] complexes: click derived triazolyl glycoconjugates. NEW J CHEM 2019. [DOI: 10.1039/c8nj05075a] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Highly efficient and reusable precatalysts of Cu(i) β-oxodithioester PPh3 complexes for the synthesis of triazolyl glycoconjugates under “click” conditions.
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Affiliation(s)
- Kavita Kumari
- Department of Chemistry
- Institute of Science
- Banaras Hindu University
- Varanasi-221005
- India
| | - Anoop S. Singh
- Department of Chemistry
- Institute of Science
- Banaras Hindu University
- Varanasi-221005
- India
| | - Krishna K. Manar
- Department of Chemistry
- Institute of Science
- Banaras Hindu University
- Varanasi-221005
- India
| | - Chote Lal Yadav
- Department of Chemistry
- Institute of Science
- Banaras Hindu University
- Varanasi-221005
- India
| | - Vinod K. Tiwari
- Department of Chemistry
- Institute of Science
- Banaras Hindu University
- Varanasi-221005
- India
| | - Michael G. B. Drew
- Department of Chemistry
- University of Reading
- Whiteknights
- Reading RG6 6AD
- UK
| | - Nanhai Singh
- Department of Chemistry
- Institute of Science
- Banaras Hindu University
- Varanasi-221005
- India
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26
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Anamika A, Agrahari AK, Manar KK, Yadav CL, Tiwari VK, Drew MGB, Singh N. Highly efficient structurally characterised novel precatalysts: di- and mononuclear heteroleptic Cu(i) dixanthate/xanthate–phosphine complexes for azide–alkyne cycloadditions. NEW J CHEM 2019. [DOI: 10.1039/c9nj01551e] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
Prominent catalytic activities of novel di- and mononuclear Cu(i) xanthate/phosphine complexes have been investigated for the synthesis of triazolyl glycoconjugates using Click approach.
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Affiliation(s)
- Anamika Anamika
- Department of Chemistry
- Institute of Science
- Banaras Hindu University
- Varanasi 221005
- India
| | - Anand K. Agrahari
- Department of Chemistry
- Institute of Science
- Banaras Hindu University
- Varanasi 221005
- India
| | - Krishna K. Manar
- Department of Chemistry
- Institute of Science
- Banaras Hindu University
- Varanasi 221005
- India
| | - Chote Lal Yadav
- Department of Chemistry
- Institute of Science
- Banaras Hindu University
- Varanasi 221005
- India
| | - Vinod K. Tiwari
- Department of Chemistry
- Institute of Science
- Banaras Hindu University
- Varanasi 221005
- India
| | | | - Nanhai Singh
- Department of Chemistry
- Institute of Science
- Banaras Hindu University
- Varanasi 221005
- India
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27
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Mahmoud AG, Martins LM, Guedes da Silva MFC, Pombeiro AJ. Copper complexes bearing C-scorpionate ligands: Synthesis, characterization and catalytic activity for azide-alkyne cycloaddition in aqueous medium. Inorganica Chim Acta 2018. [DOI: 10.1016/j.ica.2018.08.052] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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28
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Mahmoud AG, Guedes da Silva MFC, Śliwa EI, Smoleński P, Kuznetsov ML, Pombeiro AJL. Copper(II) and Sodium(I) Complexes based on 3,7-Diacetyl-1,3,7-triaza-5-phosphabicyclo[3.3.1]nonane-5-oxide: Synthesis, Characterization, and Catalytic Activity. Chem Asian J 2018; 13:2868-2880. [DOI: 10.1002/asia.201800799] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2018] [Revised: 06/20/2018] [Indexed: 12/26/2022]
Affiliation(s)
- Abdallah G. Mahmoud
- Centro de Química Estrutural; Instituto Superior Técnico; Universidade de Lisboa; Av. Rovisco Pais 1049-001 Lisboa Portugal
- Department of Chemistry; Faculty of Science; Helwan University; Ain Helwan 11795 Cairo Egypt
| | - M. Fátima C. Guedes da Silva
- Centro de Química Estrutural; Instituto Superior Técnico; Universidade de Lisboa; Av. Rovisco Pais 1049-001 Lisboa Portugal
| | - Ewelina I. Śliwa
- Faculty of Chemistry; University of Wrocław; Ul. F. Joliot-Curie 14 50-383 Wrocław Poland
| | - Piotr Smoleński
- Faculty of Chemistry; University of Wrocław; Ul. F. Joliot-Curie 14 50-383 Wrocław Poland
| | - Maxim L. Kuznetsov
- Centro de Química Estrutural; Instituto Superior Técnico; Universidade de Lisboa; Av. Rovisco Pais 1049-001 Lisboa Portugal
| | - Armando J. L. Pombeiro
- Centro de Química Estrutural; Instituto Superior Técnico; Universidade de Lisboa; Av. Rovisco Pais 1049-001 Lisboa Portugal
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