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Bensalah D, Mansour L, Sauthier M, Gurbuz N, Özdemir I, Beji L, Gatri R, Hamdi N. Plausible PEPPSI catalysts for direct C-H functionalization of five-membered heterocyclic bioactive motifs: synthesis, spectral, X-ray crystallographic characterizations and catalytic activity. RSC Adv 2023; 13:31386-31410. [PMID: 37941793 PMCID: PMC10628855 DOI: 10.1039/d3ra06334h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2023] [Accepted: 10/08/2023] [Indexed: 11/10/2023] Open
Abstract
In this study, a series of benzimidazolium salts were synthesized as asymmetric N-heterocyclic carbene (NHC) precursors. Nine novel palladium complexes with the general formula [PdX2(NHC)(pyridine)] were synthesized using benzimidazolium salts in the PEPPSI (Pyridine Enhanced Precatalyst Preparation, Stabilization and Initiation) theme. All synthesized Pd(ii) complexes are stable. The synthesized compounds were thoroughly characterized by respective spectroscopic techniques, such as 1HNMR, 13C NMR, FTIR spectroscopy, X-ray crystallography and elemental analysis. The geometric structure of the palladium N-heterocyclic carbene has been optimized in the framework of density functional theory (DFT) using the B3LYP-D3 dispersion functional with LANL2DZ as a basis set. The on/off mechanism of pyridine assisted Pd-NHC complexes made them the best C-H functionalized catalysts for regioselective C-5 arylated products. Five membered heterocyclic compounds such as 2-acetyl furan, furfuryl acetate 2-acetylthiophene and N-methylpyrrole-2-carboxaldehyde were treated with numerous aryl bromides and arylchlorides under optimal catalytic reaction conditions. Interestingly, all the prepared catalysts possessed essential structural features that facilitated the formation of desired coupling products in quantitative yield with excellent selectivity. The arylation reaction of bromoacetophenone was highly catalytically active with only 1 mol% catalyst loading at 150 °C for 2 hours. To check the efficiency of the synthesized complexes, three different five member heterocyclic substrates (2-acetylfuran, 2-acetylthiophen, 2-propylthaizole) were tested with a number of aryl bromides bearing both electron-donating and electron-withdrawing groups on para position. The data in Tables 2-4. Indicated that electron-donating groups on the para position of aryl halide decreased the catalytic conversion while electron-withdrawing groups increased the catalytic conversion this was due to the high nucleophilicity of the electron-donating substituents.
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Affiliation(s)
- Donia Bensalah
- Research Laboratory of Environmental Sciences and Technologies (LR16ES09), Higher Institute of Environmental Sciences and Technology, University of Carthage Hammam-Lif Tunisia +96 6556394839
| | - Lamjed Mansour
- Zoology Department, College of Science, King Saud University P. O. Box 2455 Riyadh 11451 Saudi Arabia
| | - Mathieu Sauthier
- Ecole Nationale Superieure de Chimie de Lille, Unité de Catalyse et Chimie du Solide, UMR CNRS 8181, USTL BP 90108, Villeneuve d'Ascq 59652 France
| | - Nevin Gurbuz
- Department of Chemistry, Faculty of Science and Art, İnönü University Malatya 44280 Turkey
- İnönü University, Catalysis Research and Application Center Malatya 44280 Turkey
| | - Ismail Özdemir
- Department of Chemistry, Faculty of Science and Art, İnönü University Malatya 44280 Turkey
- İnönü University, Catalysis Research and Application Center Malatya 44280 Turkey
| | - Lotfi Beji
- Department of Physics, College of Sciences and Arts at Arras, Qassim University Saudi Arabia
| | - Rafik Gatri
- Laboratoire de Synthèse Organique Sélective et Hétérocyclique Évaluation Biologique LR17ES01 Faculté des Sciences de Tunis Campus Universitaire, Université de Tunis El Manar 1092 Tunis Tunisia
| | - Naceur Hamdi
- Research Laboratory of Environmental Sciences and Technologies (LR16ES09), Higher Institute of Environmental Sciences and Technology, University of Carthage Hammam-Lif Tunisia +96 6556394839
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Nair PP, Jayaraj A, Swamy P CA. Recent Advances in Benzimidazole Based NHC‐Metal Complex Catalysed Cross‐Coupling Reactions**. ChemistrySelect 2022. [DOI: 10.1002/slct.202103517] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Pravya P. Nair
- Main group Organometallics Materials Supramolecular Chemistry and Catalysis lab Department of Chemistry National Institute of Technology Calicut 673601 India
- Institute for Integrated programmes and Research in Basic Sciences (IIRBS) Mahatma Gandhi University Priyadarsini Hills P O Kottayam Kerala 686560 India
| | - Anjitha Jayaraj
- Main group Organometallics Materials Supramolecular Chemistry and Catalysis lab Department of Chemistry National Institute of Technology Calicut 673601 India
| | - Chinna Ayya Swamy P
- Main group Organometallics Materials Supramolecular Chemistry and Catalysis lab Department of Chemistry National Institute of Technology Calicut 673601 India
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Hamdi N, Mnasri A, S. Al Nasr I, S. Koko W, Khan TA, Özdemir I, Gürbüz N. Highly Efficient Single A3-Coupling (Aldehyde-Amine-Alkyne) Reaction Catalyzed by Air Stable Silver-(N-Heterocyclic Carbene) Complexes: Synthesis and Characterization. Polycycl Aromat Compd 2022. [DOI: 10.1080/10406638.2021.2019064] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
- Naceur Hamdi
- Department of Chemistry, College of Science and Arts, Qassim University, Ar Rass, Saudi Arabia
- Research Laboratory of Environmental Sciences and Technologies (LR16ES09), Higher Institute of Environmental Sciences and Technology, University of Carthage, Hammam-Lif, Tunisia
| | - Aziza Mnasri
- Department of Chemistry, College of Science and Arts, Qassim University, Ar Rass, Saudi Arabia
| | - Ibrahim S. Al Nasr
- Department of Biology, College of Science and Arts, Qassim University, Unaizah, Saudi Arabia
- Department of Science Laboratories, College of Science and Arts, Qassim University, Ar Rass, Saudi Arabia
| | - Waleed S. Koko
- Department of Science Laboratories, College of Science and Arts, Qassim University, Ar Rass, Saudi Arabia
| | - Tariq A. Khan
- Department of Biomedical Instrumentation, College of Applied Health Sciences, Qassim University, Ar Rass, Saudi Arabia
| | - Ismail Özdemir
- Catalysis Research and Application Center, İnönü University, Malatya, Turkey
- Faculty of Science and Art, Department of Chemistry, İnönü University, Malatya, Turkey
| | - Nevin Gürbüz
- Catalysis Research and Application Center, İnönü University, Malatya, Turkey
- Faculty of Science and Art, Department of Chemistry, İnönü University, Malatya, Turkey
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Kaloğlu M, Kaloğlu N, Günal S, Özdemir İ. Synthesis of N-heterocyclic carbene-based silver complexes and their antimicrobial properties against bacteria and fungi. J COORD CHEM 2021. [DOI: 10.1080/00958972.2021.2014457] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Affiliation(s)
- Murat Kaloğlu
- Faculty of Science and Arts, Department of Chemistry, İnönü University, Malatya, Turkey
- Catalysis Research and Application Center, İnönü University, Malatya, Turkey
| | - Nazan Kaloğlu
- Faculty of Science and Arts, Department of Chemistry, İnönü University, Malatya, Turkey
- Catalysis Research and Application Center, İnönü University, Malatya, Turkey
| | - Selami Günal
- Faculty of Pharmacy, Department of Pharmaceutical Microbiology, İnönü University, Malatya, Turkey
| | - İsmail Özdemir
- Faculty of Science and Arts, Department of Chemistry, İnönü University, Malatya, Turkey
- Catalysis Research and Application Center, İnönü University, Malatya, Turkey
- Drug Application and Research Center, İnönü University, Malatya, Turkey
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Akpunar C, Özdemir N, Karataş MO, Alıcı B, Özdemir İ. Synthesis, crystal structures and catalytic activities of palladium complexes with coumarin-functionalised N-heterocyclic carbene ligands. INORG CHEM COMMUN 2021. [DOI: 10.1016/j.inoche.2021.108755] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
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Synthesis, Crystal Structures, and Antimicrobial and Antitumor Studies of Two Zinc(II) Complexes with Pyridine Thiazole Derivatives. Bioinorg Chem Appl 2020; 2020:8852470. [PMID: 33014027 PMCID: PMC7512040 DOI: 10.1155/2020/8852470] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2020] [Accepted: 09/04/2020] [Indexed: 11/17/2022] Open
Abstract
Two pyridine thiazole derivatives, namely, 4-(pyridin-2-yl)-2-(2-(pyridin-2-ylmethylene)hydrazinyl)thiazole (L1) and 4-(pyridin-3-yl)-2-(2-(pyridin-4-ylmethylene)hydrazinyl)thiazole (L2), were afforded by a cyclization reaction between α-haloketone and thioamide, and their Zn(II) complexes were prepared by the reaction of ligands and corresponding metal salts, respectively, and characterized by X-ray diffraction and elemental analysis. Both crystals were obtained by ether diffusion and crystallized in a monoclinic system. The in vitro antimicrobial activity of the Zn(II) complexes and ligands was screened using the microplate reader method, and in vitro antitumor activities of the complexes were evaluated by MTT, with a view to developing new improved bioactive materials with novel properties. The biological activity studies of the compounds showed that the metal complexes were more active than the free ligands, and some compounds had absolute specificity for certain bacteria or cancer cell lines.
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Kaloğlu M, Kaloğlu N, Yıldırım İ, Özdemir N, Özdemir İ. Palladium-carbene catalyzed direct arylation of five-membered heteroaromatics. J Mol Struct 2020. [DOI: 10.1016/j.molstruc.2019.127668] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
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