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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] [What about the content of this article? (0)] [Affiliation(s)] [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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Saadh MJ, Khasawneh HEN, Ortiz GGR, Ahsan M, Sain DK, Yusuf K, Sillanää M, Iqbal A, Akhavan-Sigari R. Synthesis and characterization of ZrFe 2O 4@SiO 2@Ade-Pd as a novel, recyclable, green, and versatile catalyst for Buchwald-Hartwig and Suzuki-Miyaura cross-coupling reactions. Sci Rep 2023; 13:14728. [PMID: 37679372 PMCID: PMC10484982 DOI: 10.1038/s41598-023-37680-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2023] [Accepted: 06/26/2023] [Indexed: 09/09/2023] Open
Abstract
This work presents the simple synthesis of a green and novel Palladium based magnetic nanocatalyst with effective catalytic properties and reusability. These heterogeneous catalysts were prepared by the anchoring of Pd(0) on the surface of ZrFe2O4 MNPs coated with a di-substituted adenine (Ade) compound as a green linker. The as-synthesized ZrFe2O4@SiO2@Ade-Pd MNPs were methodically characterized over different physicochemical measures like VSM, EDX, Map, SEM, TEM, ICP, and FT-IR analysis. The catalytic activity of ZrFe2O4@SiO2@Ade-Pd was carefully examined for the room-temperature Carbon-Carbon coupling reaction in acetonitrile as a solvent. It is worth noting that the synthesized solid catalyst can be easily recovered with a bar magnet and reused for five cycles without decrease of catalytic activity.
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Affiliation(s)
- Mohamed J Saadh
- Faculty of Pharmacy, Middle East University, Amman, 11831, Jordan
- Applied Science Research Center, Applied Science Private University, Amman, Jordan
| | | | - Geovanny Genaro Reivan Ortiz
- Laboratory of Basic Psychology, Behavioral Analysis and Programmatic Development (PAD-LAB), Catholic University of Cuenca, Cuenca, Ecuador
| | - Muhammad Ahsan
- Department of Measurements and Control Systems, Silesian University of Technology, 44-100, Gliwice, Poland
| | - Dinesh Kumar Sain
- Department of Chemistry, Faculty of Science, S.P. College Sirohi, Sirohi, Rajasthan, 307001, India
| | - Kareem Yusuf
- Department of Chemistry, College of Science, King Saud University, P. O. Box 2455, Riyadh, 11451, Saudi Arabia
| | - Mika Sillanää
- Department of Biological and Chemical Engineering, Aarhus University, Nørrebrogade 44, 8000, Aarhus, Denmark
| | - Amjad Iqbal
- Joint Doctoral School, Silesian University of Technology, 44-100, Gliwice, Poland.
| | - Reza Akhavan-Sigari
- Department of Health Care Management and Clinical Research, Collegium Humanum Warsaw Management University, Warsaw, Poland
- Department of Neurosurgery, University Medical Center Tuebingen, Tuebingen, Germany
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Muniyappan N, Junaid QM, Sabiah S. Synthesis, structure and characterization of picolyl and benzyl linked biphenyl nickel NHC complexes and their catalytic activity in Suzuki-Miyaura cross-coupling reactions. J Organomet Chem 2021. [DOI: 10.1016/j.jorganchem.2021.121754] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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Yang J, Zong L, Zhu X, Zhu X, Zhao J. Well‐defined (NHC)Pd(
N
–heterocyclic carboxylate)(OAc) complexes‐catalyzed direct C2‐arylation of free (NH)‐indoles with arylsulfonyl hydrazides. Appl Organomet Chem 2020. [DOI: 10.1002/aoc.5985] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Jin Yang
- School of Chemistry and Materials Science Huaibei Normal University P R Huaibei Anhui 235000 China
| | - Ling‐Li Zong
- School of Chemistry and Materials Science Huaibei Normal University P R Huaibei Anhui 235000 China
| | - Xiao‐Ting Zhu
- School of Chemistry and Materials Science Huaibei Normal University P R Huaibei Anhui 235000 China
| | - Xin‐Ying Zhu
- School of Chemistry and Materials Science Huaibei Normal University P R Huaibei Anhui 235000 China
| | - Jian‐Yi Zhao
- School of Chemistry and Materials Science Huaibei Normal University P R Huaibei Anhui 235000 China
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