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Taib LA, Keshavarz M, Panahimehr M. Introduction of Click Synthesized Novel Organic-Inorganic Solid Acid Catalysts for Highly Promoted Synthesis of Substituted Xanthenes. Polycycl Aromat Compd 2022. [DOI: 10.1080/10406638.2022.2128380] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
Affiliation(s)
- Layla A. Taib
- Department of Chemistry, College of Sciences, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Mosadegh Keshavarz
- Department of Applied Chemistry, Faculty of Gas and Petroleum, Yasouj University Gachsaran, Gachsaran, Iran
| | - Mohammad Panahimehr
- Chemistry Department, Faculty of Science, Ayatollah Boroujerdi University, Boroujerd, Iran
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Ibrahim H, Bala MD, Friedrich HB. Poly-functional imino-N-heterocyclic carbene ligands: Synthesis, complexation, and catalytic applications. Coord Chem Rev 2022. [DOI: 10.1016/j.ccr.2022.214652] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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Oxidation of Styrene to Benzaldehyde Catalyzed by Schiff Base Functionalized Triazolylidene Ni(II) Complexes. Molecules 2022; 27:molecules27154941. [PMID: 35956889 PMCID: PMC9370366 DOI: 10.3390/molecules27154941] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2022] [Revised: 06/25/2022] [Accepted: 07/01/2022] [Indexed: 11/17/2022] Open
Abstract
Four new Schiff base functionalized 1,2,3-triazolylidene nickel complexes, [Ni-(L1NHC)2](PF6)2; 3, [Ni-(L2NHC)2](PF6)2; 4, [Ni-(L3NHC)](PF6)2; 7 and [Ni-(L4NHC)](PF6)2; 8, (where L1NHC = (E)-3-methyl-1-propyl-4-(2-(((2-(pyridin-2-yl)ethyl)imino)methyl)phenyl)-1H-1,2,3-triazol-3-ium hexafluorophosphate(V), 1, L2NHC = (E)-3-methyl-4-(2-((phenethylimino)methyl)phenyl)-1-propyl-1H-1,2,3-triazol-3-ium hexafluorophosphate(V), 2, L3NHC = 4,4′-(((1E)-(ethane-1,2-diylbis(azanylylidene))bis(methanylylidene))bis(2,1-phenylene))bis(3-methyl-1-propyl-1H-1,2,3-triazol-3-ium) hexafluorophosphate(V), 5, and L4NHC = 4,4′-(((1E)-(butane-1,4-diylbis(azanylylidene))bis(methanylylidene))bis(2,1-phenylene))bis(3-methyl-1-propyl-1H-1,2,3-triazol-3-ium) hexafluorophosphate(V), 6), were synthesised and characterised by a variety of spectroscopic methods. Square planar geometry was proposed for all the nickel complexes. The catalytic potential of the complexes was explored in the oxidation of styrene to benzaldehyde, using hydrogen peroxide as a green oxidant in the presence of acetonitrile at 80 °C. All complexes showed good catalytic activity with high selectivity to benzaldehyde. Complex 3 gave a conversion of 88% and a selectivity of 70% to benzaldehyde in 6 h. However, complexes 4 and 7–8 gave lower conversions of 48–74% but with higher (up to 90%) selectivity to benzaldehyde. Results from kinetics studies determined the activation energy for the catalytic oxidation reaction as 65 ± 3 kJ/mol, first order in catalyst and fractional order in the oxidant. Results from UV-visible and CV studies of the catalytic activity of the Ni-triazolylidene complexes on styrene oxidation did not indicate any clear possibility of generation of a Ni(II) to Ni(III) catalytic cycle.
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Kadafour AN, Ibrahim H, Bala MD. Synthesis, characterization and application of new imino-functionalized 1,3-diazolium salts as antimicrobial agents. J Mol Struct 2022. [DOI: 10.1016/j.molstruc.2022.132997] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Kadafour ANW, Bala MD. Crystal Structure of (E)-1-(((3-nitrophenyl)imino)methyl)naphthalen-2-ol. CRYSTALLOGR REP+ 2022. [DOI: 10.1134/s1063774522020055] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Lejcher CA, Villa EM, Fletcher JT. Merging antimicrobial and visible emission properties within 1,3,4-trisubstituted-1,2,3-triazolium salts. Med Chem Res 2022; 31:474-484. [PMID: 36033131 PMCID: PMC9417110 DOI: 10.1007/s00044-022-02855-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Bioactive molecules displaying visible wavelength emission can be useful for bioimaging, chemosensing and photodynamic therapy applications. Reported herein are 1,3,4-trisubsituted-1,2,3-triazolium salts displaying both antimicrobial and visible emission properties. Using a click chemistry approach, 2-fluorenyl, 1-naphthyl, 2-naphthyl, 2-anthracenyl and 1-pyrenyl units were incorporated at the N1 position, imparting visible emission properties to their triazolium bromide salts with Stokes shifts greater than 100 nm relative to the emission of their triazole precursors. The increasing size of such hydrophobic aryl units impacts minimum inhibitory concentration (MIC) values against Gram-positive bacteria, Gram-negative bacteria and yeast, and can be counterbalanced by hydrophobic substituent variation at other positions of the molecule in order to preserve bioactivity. Among the series of compounds studied are analogs displaying blue, green and yellow colored emission and MIC values as low as 0.4 μM (Gram-positive bacteria), 8 μM (Gram-negative bacteria) and 2 μM (yeast). XRD analysis validates the regioselective benzylation at the N3 position of the 1,2,3-triazole ring and the ability of such compounds to associate through dimeric intermolecular π-stacking interactions.
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Affiliation(s)
- Connor A. Lejcher
- Department of Chemistry, Creighton University, 2500 California Plaza, Omaha, NE 68178, U.S.A
| | - Eric M. Villa
- Department of Chemistry, Creighton University, 2500 California Plaza, Omaha, NE 68178, U.S.A
| | - James T. Fletcher
- Department of Chemistry, Creighton University, 2500 California Plaza, Omaha, NE 68178, U.S.A
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A fascinating click strategy to novel 1,2,3-triazolium based organic-inorganic hybrids for highly accelerated preparation of tetrazolopyrimidines. Polyhedron 2022. [DOI: 10.1016/j.poly.2021.115630] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
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Kase D, Haraguchi R. Fluoride-Mediated Nucleophilic Aromatic Amination of Chloro-1 H-1,2,3-triazolium Salts. Org Lett 2021; 24:90-94. [PMID: 34914400 DOI: 10.1021/acs.orglett.1c03677] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
We report a fluoride-mediated nucleophilic aromatic amination of chloro-1H-1,2,3-triazolium salts with aliphatic amines. The reaction proceeded under mild reaction conditions to provide amino-1,2,3-triazolium salts with various functional groups, which can be utilized for further transformations. Moreover, it was found that an amino-1,2,3-triazolium salt was transformed via deprotonation into the N-heterocyclic imine (NHI), which exhibited the excellent catalytic activity for the cyanosilylation of acetophenone with trimethylsilyl cyanide.
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Affiliation(s)
- Daiya Kase
- Department of Applied Chemistry, Graduate School of Engineering, Chiba Institute of Technology, 2-17-1 Tsudanuma, Narashino, Chiba 275-0016, Japan
| | - Ryosuke Haraguchi
- Department of Applied Chemistry, Graduate School of Engineering, Chiba Institute of Technology, 2-17-1 Tsudanuma, Narashino, Chiba 275-0016, Japan
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Lawal NS, Ibrahim H, Bala MD. Facile Peroxidation of Cyclohexane Catalysed by In Situ Generated Triazole-Functionalised Schiff Base Copper Complexes. Catal Letters 2021. [DOI: 10.1007/s10562-021-03732-3] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Cu(I) mediated hydrogen borrowing strategy for the α-alkylation of aryl ketones with aryl alcohols. MONATSHEFTE FUR CHEMIE 2021. [DOI: 10.1007/s00706-021-02735-5] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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González-Perdomo P, González J, Martínez-Otero D, Unnamatla MVB, García-Eleno MA, Corona-Becerril D, Cuevas-Yañez E. Synthesis of 3-alkyl-1,2,3-triazol-1-ium hydrogen sulphate derivatives. JOURNAL OF CHEMICAL RESEARCH 2020. [DOI: 10.1177/1747519820978620] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
An array of 3-alkyl-1,2,3-triazol-1-ium hydrogen sulphate derivatives was obtained from the reaction between some 1,4-disubstituted-1,2,3-triazoles and H2SO4 through a simple protocol in good yields. The molecular structure of a triazolium salt (R1 = PhCH2, R2 = CH2O(4-CHO)C6H4) was unambiguously determined from X-ray diffraction studies, showing a remarkable triazole N3–H bond.
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Affiliation(s)
- Pilar González-Perdomo
- Centro Conjunto de Investigación en Química Sustentable UAEM-UNAM, Universidad Autónoma del Estado de México, Toluca, México
| | - Jaime González
- Centro Conjunto de Investigación en Química Sustentable UAEM-UNAM, Universidad Autónoma del Estado de México, Toluca, México
| | - Diego Martínez-Otero
- Centro Conjunto de Investigación en Química Sustentable UAEM-UNAM, Universidad Autónoma del Estado de México, Toluca, México
- Instituto de Química, Universidad Nacional Autónoma de México, Circuito Exterior S. N., Ciudad Universitaria, Coyoacán, México
| | - MV Basavanag Unnamatla
- Centro Conjunto de Investigación en Química Sustentable UAEM-UNAM, Universidad Autónoma del Estado de México, Toluca, México
- Facultad de Química, Universidad Autónoma del Estado de México, Paseo Colón esq. Paseo Tollocan, Toluca, México
| | - Marco A García-Eleno
- Centro Conjunto de Investigación en Química Sustentable UAEM-UNAM, Universidad Autónoma del Estado de México, Toluca, México
- Facultad de Química, Universidad Autónoma del Estado de México, Paseo Colón esq. Paseo Tollocan, Toluca, México
| | - David Corona-Becerril
- Centro Conjunto de Investigación en Química Sustentable UAEM-UNAM, Universidad Autónoma del Estado de México, Toluca, México
- Facultad de Química, Universidad Autónoma del Estado de México, Paseo Colón esq. Paseo Tollocan, Toluca, México
| | - Erick Cuevas-Yañez
- Centro Conjunto de Investigación en Química Sustentable UAEM-UNAM, Universidad Autónoma del Estado de México, Toluca, México
- Facultad de Química, Universidad Autónoma del Estado de México, Paseo Colón esq. Paseo Tollocan, Toluca, México
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