Research on Chemical Intermediates最新文献

{"title":"Exploring the therapeutic potentials of bidentate ligands derived from benzohydrazide and their mononuclear transition metal complexes: insights from computational studies","authors":"Binesh Kumar, Jai Devi, Parth Saini, Daksh Khurana, Khushwant Singh, Yudhvir Singh","doi":"10.1007/s11164-024-05328-z","DOIUrl":"https://doi.org/10.1007/s11164-024-05328-z","url":null,"abstract":"<p>In the twenty-first century, we are witnessed of a large number of infectious ailments which spread very quickly worldwide and effect the public health significantly. Thus, in the current research, with the aim of a suitable malaria and oxidant controlling agent, micro-assay, DPPH and ABTS protocols were conducted against previously synthesized and well-characterized (mass spectrometry, NMR (¹H and ¹³C), powder XRD, IR, electronic spectra, TGA magnetic moment, molar conductivity and SEM) hydrazone ligands (1–2) and their Co(II), Ni(II), Cu(II), Ni(II) metal complexes (3–10) of benzaldehyde derivatives and 3,5-dichlorobenzohydrazide. The biological assessment revealed that the (8), (9), (10) complexes were more potent to inhibit the malarial and oxidant infections although the complex (10) has highest ability (0.42 ± 0.05 µM for antimalaria and 1.98 ± 0.09–99 ± 0.08 µM for antioxidant) to control these diseases with comparable IC₅₀ value to quinine and ascorbic acid. Moreover, molecular docking (against 8E1Z and 1U5A proteins), DFT and ADMET investigations were examined against the highly potent HL² ligand and its (7–10) complexes to corroborate the acquired biological findings. The theoretical investigations also advocate the more potency of complex (10) through significant binding affinity, binding modes, hardness, softness, etc.</p>","PeriodicalId":753,"journal":{"name":"Research on Chemical Intermediates","volume":null,"pages":null},"PeriodicalIF":3.3,"publicationDate":"2024-06-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141529021","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Enhancing the photodegradation of Metronidazole under natural sunlight using a new Co3O4/HMS semiconductor–insulator photocatalytic heterojunction","authors":"Thiziri Djelloudi, Ouardia Zekri, Fouzia Touahra, Franck Launay","doi":"10.1007/s11164-024-05330-5","DOIUrl":"https://doi.org/10.1007/s11164-024-05330-5","url":null,"abstract":"<p>The design of new specific photocatalysts to achieve excellent photocatalytic performances in the photodegradation of organic pollutants, specially the nonbiodegraded ones, is of a crucial importance nowadays to clean the contaminated water resources aiming to solve the problem of shortage in clean water. In this work, a cobalt supported over hexagonal mesoporous silica (9%Co/HMS) catalyst was synthesized and applied in the removal of Metronidazole in aqueous solutions by photodegradation under sunlight. An unexpected excellent photocatalytic performance was obtained (97% of MNZ removal in sunny days vs. 74% in cloudy days). This excellent performance results from the creation of a semiconductor–insulator heterojunction between Co₃O₄ and the carrier HMS. Even more interesting, the removal efficiency was kept up four cycles. Therefore, this study may provide a new opportunity for the future development of high-performance heterogeneous catalysts based on mesoporous silica in aquatic environmental pollution control in either sunny or cloudy weather.</p>","PeriodicalId":753,"journal":{"name":"Research on Chemical Intermediates","volume":null,"pages":null},"PeriodicalIF":3.3,"publicationDate":"2024-06-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141504292","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"An efficient strategy for alkoxy halogenation addition of olefins catalyzed by polyoxometalate-based iron catalyst","authors":"Junting Zhou, Mengjie Deng, Ya Xie, Sheng Han, Han Yu","doi":"10.1007/s11164-024-05327-0","DOIUrl":"https://doi.org/10.1007/s11164-024-05327-0","url":null,"abstract":"<p>The halogenation of alkenes is a crucial pathway in forming C-X bonds, with a significant impact on organic synthesis and pharmaceuticals. However, traditional methodologies present potential hazards to both the environment and human health, making the quest for green and efficient halogenation methods paramount. In this study, we introduce a novel iron catalyst based on a polyoxometalate, (NH₄)₃[FeMo₆O₁₈(OH)₆], simplified as Fe(III)Mo₆. Employing this catalyst, a plethora of styrene derivatives and alcohols were efficiently and successfully converted to the corresponding halogenated products. Also, our catalyst showed excellent performance toward the reaction with various substrates. Moreover, it demonstrates high stability and activity in the cycle test. In addition, we also described the reaction mechanism based on the control experiment. The catalyst exhibits non-toxic, green, and environmentally friendly characteristics that provide future industrialization potential.</p>","PeriodicalId":753,"journal":{"name":"Research on Chemical Intermediates","volume":null,"pages":null},"PeriodicalIF":3.3,"publicationDate":"2024-06-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141529022","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Influence of magnesium content and phosphoric acid treatment on cadmium adsorption onto sugarcane leaf biochar","authors":"Siraprapa Suwanree, Kaewta Jetsrisuparb, Pornnapa Kasemsiri, Pawarin Tharamas, Hiroshi Uyama, Sanchai Kuboon, Jesper T. N. Knijnenburg","doi":"10.1007/s11164-024-05329-y","DOIUrl":"https://doi.org/10.1007/s11164-024-05329-y","url":null,"abstract":"<p>Biochar is an attractive low-cost sorbent for removal of heavy metals such as cadmium (Cd) from solution. This study presents modification of sugarcane leaf biochars with phosphoric acid (H₃PO₄) and magnesium oxide (MgO) and the influence of Mg:P atomic ratio (varied from 0 to 2) on the Cd²⁺ adsorption performance was evaluated. Compared to unmodified biochar (BC), pre-pyrolysis modification with H₃PO₄ alone (P-BC) greatly increased the surface area from 296 to 505 m²/g but its Cd²⁺ adsorptivity decreased by 5-folds due to high acidity. Incorporation of alkaline MgO increased the Cd²⁺ adsorption and pH, despite a reduction in surface area, confirming that Mg played a predominant role in Cd²⁺ removal. When Mg:P &gt; 1 (1.5MgP-BC and 2MgP-BC), more than 99% of the Cd²⁺ was removed, but the solutions were alkaline with pH &gt; 8. Adsorbent 1MgP-BC presented an overall good performance with a maximum Cd²⁺ adsorption capacity of 36.4 mg/g (compared to 12.8 mg/g for BC) and neutral pH. The adsorption kinetics of Cd²⁺ onto both BC and 1MgP-BC were best described by the Elovich and pseudo-second order models, suggesting chemisorption as primary adsorption mechanism. Adsorption isotherms followed the Langmuir (for 1MgP-BC) and Freundlich isotherm models (for BC). Characterization of the post-adsorption biochars with XRD, FTIR, XPS and SEM–EDX confirmed that Cd²⁺ adsorption onto BC was governed by precipitation of CdCO₃ and interaction with specific surface sites, whereas for 1MgP-BC the Cd²⁺ was primarily adsorbed onto Mg phosphates on the biochar surface and precipitated as Cd₃(PO₄)₂.</p>","PeriodicalId":753,"journal":{"name":"Research on Chemical Intermediates","volume":null,"pages":null},"PeriodicalIF":3.3,"publicationDate":"2024-06-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141504293","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Application of ZrO2-ZSM-5 catalyzed soybean oil epoxidation enhanced by hydraulic cavitation","authors":"Gao Ming, Simin Mo, Qianwei Cheng, Luli Meng, Yuan Cheng","doi":"10.1007/s11164-024-05323-4","DOIUrl":"https://doi.org/10.1007/s11164-024-05323-4","url":null,"abstract":"<p>To better apply solid acid catalysts for hydraulic cavitation technology, a ZrO₂-ZSM-5 solid acid catalyst was prepared using impregnation and ion-exchange methods. The effects of the catalyst, hydrogen peroxide, and formic acid dosages, reaction temperature, and venturi tube type on the epoxidation of soybean oil were investigated. The appropriate reaction conditions were determined through a series of experiments: n(C = C):n(HCOOH) = 1:3.0, n(C = C):n(H₂O₂) = 1:2.2, reaction temperature 70 °C, catalyst dosage 1 wt%, and the reaction time 3 h. The epoxy value of the optimized product reached 6.19%. After the reaction, the catalyst was recovered, and catalyst-related mechanisms were hypothesized in conjunction with related analyses. A catalytic mechanism is proposed, and an explanation is provided on how the catalyst accelerates the reaction process. It was concluded that the catalyst can be effectively applied to the epoxidation reaction under the action of hydraulic cavitation, and the reaction rate can be effectively improved.</p>","PeriodicalId":753,"journal":{"name":"Research on Chemical Intermediates","volume":null,"pages":null},"PeriodicalIF":3.3,"publicationDate":"2024-06-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141504294","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Research on photocatalytic performance and mechanism of nitrogen–sulfur co-doped carbon quantum dots and C3N4 co-modified BiOBr","authors":"Huadong Liu, Kezhen Du, Hao Sun","doi":"10.1007/s11164-024-05308-3","DOIUrl":"https://doi.org/10.1007/s11164-024-05308-3","url":null,"abstract":"<p>In this study, nitrogen and sulfur co-doped carbon quantum dots (NSCQDs) were prepared by hydrothermal method, carbon nitride (C₃N₄) was fired in a muffle furnace in an air atmosphere, and finally, the ternary heterostructure of NSCQDs, C₃N₄ and bismuth oxide bromide (BiOBr) was synthesized by a hydrothermal method (NSCQDs/C₃N₄/BiOBr). The morphology of the catalyst was observed through SEM and TEM. The chemical bonds were analyzed by XPS and FT-IR to further confirm that NSCQDs and C₃N₄ were successfully attached to BiOBr. The photocatalytic activity of the synthesized catalysts was studied by degrading RhB under simulated light source. The experiment results showed that under optimal conditions, the degradation rate of RhB by NSCQDs/C₃N₄/BiOBr within 20 min was as high as 99.9%, which was much higher than that of pure BiOBr (33.5%). The degradation curve was combined with a pseudo-first-order kinetic model with a kinetic constant of 0.32578 min⁻¹, which was 17.7 times that of BiOBr (0.01837 min⁻¹). Catalyst recycling tests showed that NSCQDs/C3N4/BiOBr had extremely high stability. The active species quenching test showed that <span>({text{O}}_{2}^{ cdot - })</span> and ¹O₂ were the main active species during the photocatalytic process. The inhibition effect of NSCQDs and C₃N₄ on BiOBr photogenerated carrier recombination was analyzed by photoluminescence and transient photocurrent tests. This study is expected to provide an attractive strategy for constructing efficient and environmentally friendly photocatalysts for environmental remediation.</p>","PeriodicalId":753,"journal":{"name":"Research on Chemical Intermediates","volume":null,"pages":null},"PeriodicalIF":3.3,"publicationDate":"2024-06-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141504295","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Polyethylene glycol: an efficient solid–liquid transfer agent for K2CO3-catalyzed oxidative coupling reaction of alkyl mercaptan with sulfur as oxidant","authors":"Shan Jiang, Rui Wang, Changzi Jin, Fei Li, Heng Jiang","doi":"10.1007/s11164-024-05317-2","DOIUrl":"https://doi.org/10.1007/s11164-024-05317-2","url":null,"abstract":"<p>The solid–liquid phase transfer catalyzed (S-L PTC) properties of polyethylene glycol (PEG) were investigated in the preparation of dialkyl disulfide (R₂S₂) by oxidative coupling of alkyl mercaptan and sulfur with K₂CO₃ as catalyst under atmospheric pressure and solvent-free conditions. The results have showed that the S-L PTC properties of PEG are not significantly different from those of crown ether. The S-L PTC properties of PEG are reduced due to methylation of the terminal hydroxyl groups, indicating that the terminal hydroxyl group in PEG plays an important role in stabilizing the [PEG-K₂⁺ CO₃²⁻] complex. The results of infrared spectral analysis confirm that CO₃²⁻ in K₂CO₃ has a strong interaction with the terminal hydroxyl group in PEG. At the fixed molar ratio of –CH₂CH₂O-/K₂CO₃, the increase of PEG chain length has a positive correlation with the S-L PTC performance. The reaction rate and yield of R₂S₂ can be improved by increasing the amount of K₂CO₃ and the molar ratio of -CH₂CH₂O-/K₂CO₃ appropriately. The PEG400/K₂CO₃ system exhibits very high catalytic activity for the oxidative coupling reaction of alkyl mercaptan with sulfur as oxidant. The yield of the reaction product (<i>n</i>-C₈H₁₇)₂S₂ can still reach more than 97% by using 0.1 mol% K₂CO₃ and 0.006 mol% PEG400 (based on sulfur).</p><h3 data-test=\"abstract-sub-heading\">Graphical Abstract</h3>\u0000","PeriodicalId":753,"journal":{"name":"Research on Chemical Intermediates","volume":null,"pages":null},"PeriodicalIF":3.3,"publicationDate":"2024-06-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141258156","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Investigation on synergistic effect of CuO and Cu–O–Ce on efficient oxidation of ethyl acetate over CuO/CeO2 catalysts","authors":"Yuchuan Ye, Qing Wang, Han Chen, Liqiao Chen, Luhui Wang, Liuye Mo, Li Tan, Qinhong Wei, Jing Xu","doi":"10.1007/s11164-024-05315-4","DOIUrl":"https://doi.org/10.1007/s11164-024-05315-4","url":null,"abstract":"<p>The high activity of ethyl acetate (EA) combustion is studied over the CuO/CeO₂ catalysts which are prepared by the ball milling method, and the relationships between catalytic activity and active sites of CuO and Cu–O–Ce structure are investigated. The finely dispersed CuO particles (around 1.0 nm) and Cu–O–Ce structure are prepared in the CuO/CeO₂ catalysts when 5 wt% Cu loading is acquired with the calcination temperature at 500 °C. Complete conversion of ethyl acetate to CO₂ is achieved at 210 °C. Via controlling calcination temperatures and treatments by alkaline/acid, it is demonstrated that the synergistic effect between highly dispersed CuO and Cu–O–Ce structure results in a better ability of oxygen activation and catalytic activity for the 5-CuO/CeO₂(500) catalyst. This study provides a feasible strategy for designing an efficient CuO/CeO₂ catalyst and an insight into the structure–activity relationship.</p>","PeriodicalId":753,"journal":{"name":"Research on Chemical Intermediates","volume":null,"pages":null},"PeriodicalIF":3.3,"publicationDate":"2024-06-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141258157","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Superior performance of nickel doped vanadium pentoxide nanoparticles and their photocatalytic, antibacterial and antioxidant activities","authors":"A. Remila, V. Shally, C. Parvathiraja, T. Darwin, M. Priya Dharshini, T. Gerardin Jayam, Saikh M. Wabaidur, Masoom Raza Siddiqui","doi":"10.1007/s11164-024-05316-3","DOIUrl":"https://doi.org/10.1007/s11164-024-05316-3","url":null,"abstract":"<p>The present work reports the synthesis of pure V₂O₅ and Ni-doped V₂O₅ nanoparticles via co-precipitation method, exploring diverse concentrations of Ni²⁺ in V₂O₅ system. The valent reduction of V, Ni, Oxygen stabilization and formation of V₂O₅ and Ni-doped V₂O₅ nanoparticles were evident by characterization techniques such as X-ray diffraction, Fourier transform infrared spectroscopy, Photoluminescence and UV–Visible Diffuse Reflectance Spectroscopy. Bandgap variations and Crystallite size of pure V₂O₅ and Ni-doped V₂O₅ nanoparticles confirmed the reduction of Ni⁺ and V⁺ their difference was found to be ∆Eg = 1.52 eV and 24–43 nm, respectively. X-ray Photoelectron Spectroscopy analysis examined oxidation states and binding energies which is vital for understanding structural and compositional aspects. Evaluation of bacterial endurance against gram-positive (<i>S. aureus</i>) and gram-negative bacteria (<i>E.coli</i>), coupled with antioxidant activity measurements via 2,2-Diphenyl-1-picrylhydrazyl (DPPH) method, indicate the successful utilization of the synthesized nanoparticles for biomedical and wastewater treatment applications. In contagious diseases, Ni/V₂O₅ nanoparticles showed superior activity against both <i>S. aureus</i> and <i>E. coli.</i> Photocatalytic activity against MB (98%) and Rh–B (88%) dyes under visible light irradiation was also evaluated with Ni/V₂O₅ nanoparticles which is exhibiting enhanced performance. Pseudo-first-order kinetics revealed accelerated dye degradation upon Ni ion incorporation, suggesting improved electron–hole pair activity and ROS formation. The AOP facilitated by the photocatalyst holds promise for wastewater treatment, with advantages such as absence of secondary product formation and presence of activated electrons. The in-depth investigation about the properties of Ni²⁺ into V₂O₅ lead us towards the cost effective and multifunctional applications of these nanoparticles at industrial level.</p>","PeriodicalId":753,"journal":{"name":"Research on Chemical Intermediates","volume":null,"pages":null},"PeriodicalIF":3.3,"publicationDate":"2024-05-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141194826","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"1,3-(4,4'-dipyridinium disulfonic acid)propane dimethanesulfonate as an effective double-functional catalyst in preparing N,N′-Methylene bisamides, Tetrahydrochromeno-chromenes, and Pyrido-dipyrimidines","authors":"Ebraheem Abdu Musad Saleh, Bashar Mudhaffar Abdullah, Hala Kh. Mohammed, Asmaa F. Kassem, I. B. Sapaev, Pallavi Ghildiyal, Abdul-hameed. M. Hamoody, Ahmed Alawadi, Usama S. Altimari, Maryam Sadat Ghorayshi Nejad","doi":"10.1007/s11164-024-05290-w","DOIUrl":"https://doi.org/10.1007/s11164-024-05290-w","url":null,"abstract":"<p>In this paper, a dual-functional Brønsted acidic ionic liquid (BAIL) catalyst, namely 1,3-(4,4'-dipyridinium disulfonic acid)propane dimethanesulfonate (DPDSPDM), was produced, and its structure was identified using TGA, FT-IR, ¹³C NMR, ¹H NMR, and mass spectrometry techniques. Then, it was utilized as a versatile, homogeneous, and recyclable catalyst in preparing <i>N,N'</i>-Methylene bisamides (<b>1a-14a</b>, 5–13 min, 90–98%, 50 °C, solvent-free), Tetrahydrochromeno-chromenes (<b>1b-12b</b>, 8–20 min, 91–98%, 60 °C, solvent-free), and Pyrido-dipyrimidines (<b>1c-12c</b>, 2–5 min, 93–98%, 25 °C, H₂O). In all three synthetic routes, the catalytic activity scope of DPDSPDM was remarkable and general due to having basic (MeSO₃ˉ) and acidic (SO₃H) sites, and reasonable mechanisms were displayed to support this high performance. The reproducibility of this homogeneous catalyst along with advantages such as appropriate TOF (turnover frequency) and TON (turnover number) values, mild conditions, simplicity of the workup, short reaction times, high yields, non-metallic nature of the catalyst, and the use of cheap and available raw materials in its synthesis; making it a potential candidate for future research.</p><h3 data-test=\"abstract-sub-heading\">Graphical abstract</h3>\u0000","PeriodicalId":753,"journal":{"name":"Research on Chemical Intermediates","volume":null,"pages":null},"PeriodicalIF":3.3,"publicationDate":"2024-05-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141194592","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}