Research on Chemical Intermediates最新文献

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Bio-inspired synthesis of Ag/TiO2 nanocomposites: catalytic applications in tetraketone synthesis and anticancer activity on the MCF-7 cell line Ag/TiO2纳米复合材料的仿生合成:在四酮合成中的催化应用及MCF-7细胞系的抗癌活性
IF 2.8 3区 化学
Research on Chemical Intermediates Pub Date : 2025-04-25 DOI: 10.1007/s11164-025-05596-3
Komal Gupta, Kirti Saini, Kundan Singh Shekhawat, Jaya Mathur
{"title":"Bio-inspired synthesis of Ag/TiO2 nanocomposites: catalytic applications in tetraketone synthesis and anticancer activity on the MCF-7 cell line","authors":"Komal Gupta,&nbsp;Kirti Saini,&nbsp;Kundan Singh Shekhawat,&nbsp;Jaya Mathur","doi":"10.1007/s11164-025-05596-3","DOIUrl":"10.1007/s11164-025-05596-3","url":null,"abstract":"<div><p>As environmental concerns grow and the focus on sustainability increases, green synthesis methods are acknowledged for their simplicity and eco-friendly approach. This study presents an innovative approach for synthesising Ag/TiO<sub>2</sub> nanocomposites from the flower extract of <i>Tagetes erecta</i>. The Ag/TiO<sub>2</sub> nanocomposites were characterised through various techniques. The X-ray Diffraction (XRD) analysis of the nanocomposites showed a crystalline anatase phase of TiO<sub>2</sub>, integrated with silver nanoparticles in the structure. The Scanning Electron Microscopy (SEM) revealed that the particles were nearly semi-spherical and the Transmission Electron Microscopy (TEM) technique confirmed the crystalline nature of nanocomposites with a size range of 20 to 25 nm. The specific surface area of the nanocomposites was found to be 48.913 m<sup>2</sup>/g through the Brunauer–Emmett–Teller (BET) analysis. The UV–visible spectroscopic (UV–Vis) analysis indicated enhanced visible-range absorption, and the Fourier Transform Infrared Spectroscopy (FTIR) highlighted the involvement of phytoconstituents of the flower extract in the synthesis and stabilisation of the nanocomposites. The Energy Dispersive X-ray Spectroscopy (EDX) validated their elemental composition. Zeta potential analysis indicated moderate stability, while Dynamic Light Scattering (DLS) measured the hydrodynamic particle size of the nanocomposites. The nanocomposites displayed notable catalytic properties in the one-pot synthesis of tetraketones using dimedone and substituted aromatic aldehydes. The reactions proceeded smoothly under mild conditions with simple work-up procedures. High product yields were achieved in short reaction times, and the catalyst was easily recovered and retained activity for five reaction cycles. The nanocomposites demonstrated notable anticancer activity on the MCF-7 breast cancer cell line. At a concentration of 60 μg/mL, a cytotoxicity of 83.26% was observed, with an IC₅₀ value of 35.12 μg/mL. These findings showcase the potential of Ag/TiO<sub>2</sub> nanocomposites as effective catalysts and promising anticancer agents.</p><h3>Graphical abstract</h3><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":753,"journal":{"name":"Research on Chemical Intermediates","volume":"51 6","pages":"3125 - 3153"},"PeriodicalIF":2.8,"publicationDate":"2025-04-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144073741","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}
引用次数: 0
Sustainable one-pot synthesis, digital ADMET modelling, DFT analysis, molecular docking and biological screening of dibutyl((5-hydroxy-3-methyl-1-phenyl-1H-pyrazol-4-yl)(aryl)methyl) phosphonates 可持续一锅合成,数字ADMET建模,DFT分析,分子对接和(5-羟基-3-甲基-1-苯基- 1h -吡唑-4-基)(芳基)甲基)膦酸酯的生物筛选
IF 2.8 3区 化学
Research on Chemical Intermediates Pub Date : 2025-04-24 DOI: 10.1007/s11164-025-05590-9
Sumithra Poreddy, Mohan Gundluru, Surendra Pothuraju, Poojitha Bellala, Jyothibabu Sajila Arya, Suresh Reddy Cirandur
{"title":"Sustainable one-pot synthesis, digital ADMET modelling, DFT analysis, molecular docking and biological screening of dibutyl((5-hydroxy-3-methyl-1-phenyl-1H-pyrazol-4-yl)(aryl)methyl) phosphonates","authors":"Sumithra Poreddy,&nbsp;Mohan Gundluru,&nbsp;Surendra Pothuraju,&nbsp;Poojitha Bellala,&nbsp;Jyothibabu Sajila Arya,&nbsp;Suresh Reddy Cirandur","doi":"10.1007/s11164-025-05590-9","DOIUrl":"10.1007/s11164-025-05590-9","url":null,"abstract":"<div><p>This study presents a sustainable one-pot synthesis of novel pyrazolyl phosphonate derivatives via a three-component reaction using 3-methyl-1-phenyl-2-pyrazoline-5-one, aryl aldehydes and dibutyl phosphite, catalyzed by thiamine hydrochloride under solvent-free conditions. Two of these synthetic chemicals were chosen for in-depth density functional theory analysis due to their electron-donating (methoxy) and electron-withdrawing (nitro) groups, providing insights into their electronic properties, reactivity and stability through highest occupied molecular orbital-lowest unoccupied molecular orbital energy gap calculations. Strong interactions with the active sites of acetylcholinesterase (AChE) were found by molecular docking experiments. The compounds also exhibited potent anti-inflammatory and antioxidant activities in biological assays. Additionally, absorption, distribution, metabolism, excretion and toxicity profiling suggested favourable bioavailability and low toxicity, demonstrating their medicinal potential in the creation of new drugs.</p><h3>Graphical abstract</h3>\u0000<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":753,"journal":{"name":"Research on Chemical Intermediates","volume":"51 6","pages":"3317 - 3350"},"PeriodicalIF":2.8,"publicationDate":"2025-04-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144073822","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}
引用次数: 0
Micro-mesoporous HY zeolite functionalized with ionic liquid and heteropoly acid: a high-performance catalyst for green synthesis of polyhydroquinolines 离子液体和杂多酸功能化微介孔HY分子筛:绿色合成多对苯二酚类化合物的高性能催化剂
IF 2.8 3区 化学
Research on Chemical Intermediates Pub Date : 2025-04-24 DOI: 10.1007/s11164-025-05598-1
Mojgan Zendehdel, Fatemeh Tavakoli, Nasim javanmard
{"title":"Micro-mesoporous HY zeolite functionalized with ionic liquid and heteropoly acid: a high-performance catalyst for green synthesis of polyhydroquinolines","authors":"Mojgan Zendehdel,&nbsp;Fatemeh Tavakoli,&nbsp;Nasim javanmard","doi":"10.1007/s11164-025-05598-1","DOIUrl":"10.1007/s11164-025-05598-1","url":null,"abstract":"<div><p>To enhance the catalytic properties of HY zeolite by tuning its acidity and modifying its porosity, we synthesized a novel heterogeneous acidic catalyst by functionalizing HY zeolite with 3-chloropropyltrimethoxysilane, ionic liquid (MI), chlorosulfonic acid (SA), and heteropoly acid (HPA). The physicochemical properties of this catalyst were characterized using NH₃-TPD, BET, XRD, FT-IR, FESEM, EDX, MAP, and TGA/DTA analyses. FESEM, BET, and XRD results confirmed a significant transformation in porosity to a micro-meso structure while retaining the zeolite’s structural integrity. The novel catalyst (HY-MI-SA-HPA), featuring enhanced acidity and tunable porosity, was applied to the synthesis of polyhydroquinoline derivatives. Catalytic performance was evaluated under mild, solvent-free conditions, achieving up to 99% conversion with using minimal catalyst quantities (as low as 0.04 g), a 20-min reaction time, and ambient temperature. Additionally, reusability tests showed that the catalyst retained high activity and stability across five consecutive reaction cycles, highlighting its potential for sustainable catalytic applications.</p></div>","PeriodicalId":753,"journal":{"name":"Research on Chemical Intermediates","volume":"51 6","pages":"3039 - 3065"},"PeriodicalIF":2.8,"publicationDate":"2025-04-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144073823","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}
引用次数: 0
Enhanced photocatalytic hydrogen production under UV light: improved electron transfer in mesoporous Co–SnO2 for energy exploration and blue LED applications 紫外光下增强光催化制氢:用于能源勘探和蓝色LED应用的介孔Co-SnO2中改进的电子转移
IF 2.8 3区 化学
Research on Chemical Intermediates Pub Date : 2025-04-24 DOI: 10.1007/s11164-025-05597-2
R. Silambarasan, K. Anbalagan
{"title":"Enhanced photocatalytic hydrogen production under UV light: improved electron transfer in mesoporous Co–SnO2 for energy exploration and blue LED applications","authors":"R. Silambarasan,&nbsp;K. Anbalagan","doi":"10.1007/s11164-025-05597-2","DOIUrl":"10.1007/s11164-025-05597-2","url":null,"abstract":"<div><p>This work aims to synthesize and evaluate SnO<sub>2</sub> and co-implanted SnO<sub>2</sub> nanoparticles for photocatalytic hydrogen evolution and electrochemical applications. SnO<sub>2</sub> nanoparticles were produced hydrothermally, and co-implanted SnO<sub>2</sub> was prepared using photo-induced chemical processes, resulting in ordered cobalt incorporation. To determine their versatility, they were characterized structurally, magnetically, and optically. Cobalt-induced surface defects and exchange interactions increased the ferromagnetic saturation (<i>M</i><sub><i>S</i></sub>) in Co–implanted SnO<sub>2</sub>, as indicated by vibrational sampling magnetism <i>(VSM)</i> analysis. Pigment analysis using the CIE 1976 system revealed a blue shift in emission, with pigment coordinates moving from (x = 0.26, y ≈ 0.36) to (x ≈ 0.22, y ≈ 0.30) for the Co-implanted SnO<sub>2</sub>. This indicates better quantum confinement and potential optoelectronic applications. Photocatalytic hydrogen evolution studies revealed a high production rate of 80 μmol/h under UV–visible irradiation. The increased activity was attributed to the mesoporous structure and cobalt doping, which increases the surface area and reduces electron–hole recombination. Mott-Schottky analysis revealed a favourable shift in the flat-band energy <i>(E</i><sub><i>fb​</i></sub><i>)</i>. This indicates a high charge separation efficiency and a negative conduction band edge, which are favourable for hydrogen evolution. A high specific capacitance of 685 F/g at a current density of 1 A/g and an excellent retention of 92% over 800 charge–discharge cycles were demonstrated by electrochemical measurements of the assembled SnO<sub>2</sub>. Electrochemical impedance spectroscopy (EIS) Nyquist plots showed a low charge transfer resistance of about <i>(R</i><sub><i>ct</i></sub><i>​)</i> 3.2 Ω, indicating excellent electron mobility. The enhanced charge transfers and low recombination rates were further verified by transient photovoltage responses. These results highlight the potential of Co-implanted SnO<sub>2</sub> nanocomposites as high-performance materials for energy storage and hydrogen evolution. This research provides essential design ideas for power band modulation, defect engineering, multifunctional catalysts, and optimised nanostructures for improved performance in sustainable energy applications. Their performance in photocatalytic processes is aided by assessing their BET surface area and electrochemically active surface area (ECSA).</p><h3>Graphical abstract</h3>\u0000<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":753,"journal":{"name":"Research on Chemical Intermediates","volume":"51 6","pages":"3203 - 3227"},"PeriodicalIF":2.8,"publicationDate":"2025-04-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144073824","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}
引用次数: 0
Correction: Synthesis, spectroscopic characterization, and evaluation of the antibacterial activity of 3d transition metal complexes derived from bis(pyrazolyl)methane ligand 修正:合成,光谱表征,并评价三维过渡金属配合物衍生的双(吡唑基)甲烷配体的抗菌活性
IF 2.8 3区 化学
Research on Chemical Intermediates Pub Date : 2025-04-23 DOI: 10.1007/s11164-025-05592-7
S. Nakul, R. Bhagavathish, Naveen V. Kulkarni, Dineshchakravarthy Senthurpandi, Radhika K. Madalgi, Suresh B. Arakera, B. A. Aysha Hameeda, Deepthi Jose
{"title":"Correction: Synthesis, spectroscopic characterization, and evaluation of the antibacterial activity of 3d transition metal complexes derived from bis(pyrazolyl)methane ligand","authors":"S. Nakul,&nbsp;R. Bhagavathish,&nbsp;Naveen V. Kulkarni,&nbsp;Dineshchakravarthy Senthurpandi,&nbsp;Radhika K. Madalgi,&nbsp;Suresh B. Arakera,&nbsp;B. A. Aysha Hameeda,&nbsp;Deepthi Jose","doi":"10.1007/s11164-025-05592-7","DOIUrl":"10.1007/s11164-025-05592-7","url":null,"abstract":"","PeriodicalId":753,"journal":{"name":"Research on Chemical Intermediates","volume":"51 6","pages":"3439 - 3441"},"PeriodicalIF":2.8,"publicationDate":"2025-04-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144073905","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}
引用次数: 0
Synergistic integration of sulfur-modified graphite felt electrode with NiFe LDH catalysts for enhanced OER efficiency 硫改性石墨毡电极与NiFe LDH催化剂协同集成以提高OER效率
IF 2.8 3区 化学
Research on Chemical Intermediates Pub Date : 2025-04-23 DOI: 10.1007/s11164-025-05588-3
Danni Li, Muhammad Umair Mushtaq, Yingming Tang, Sa Li, Fubin Hou, Khurram Shahzad Ayub, Limei Cao, Ji Yang
{"title":"Synergistic integration of sulfur-modified graphite felt electrode with NiFe LDH catalysts for enhanced OER efficiency","authors":"Danni Li,&nbsp;Muhammad Umair Mushtaq,&nbsp;Yingming Tang,&nbsp;Sa Li,&nbsp;Fubin Hou,&nbsp;Khurram Shahzad Ayub,&nbsp;Limei Cao,&nbsp;Ji Yang","doi":"10.1007/s11164-025-05588-3","DOIUrl":"10.1007/s11164-025-05588-3","url":null,"abstract":"<div><p>The modification of NiFe layered double hydroxide (LDH)-based catalysts has garnered significant attention as a promising strategy for enhancing oxygen evolution reaction (OER) efficiency. In this work, graphite felt (GF) was modified using sodium thiosulfate as a sulfur source, followed by the deposition of NiFe LDH via a one-step hydrothermal process. The sulfur-treated GF electrodes exhibited an increased defect density and a well-developed microporous structure, which improved catalyst adhesion. Electrochemical evaluations demonstrated that the S-Ni<sub>7</sub>Fe<sub>3</sub> LDH/TGF exhibited superior OER activity, achieving an overpotential of 290 mV at 10 mA cm<sup>−2</sup> and a Tafel slope of 87.84 mV dec<sup>−1</sup>, outperforming the unmodified Ni<sub>7</sub>Fe<sub>3</sub> LDH/TGF (302 mV). Additionally, the modified electrode displayed remarkable durability, sustaining 310 h of operation under demanding conditions (1 M KOH, 1 A cm<sup>−2</sup>, and 60 °C), underscoring its robust electrochemical stability. This study highlights the critical role of substrate modification in enhancing electrocatalytic efficiency and provides a promising pathway for developing high-performance OER catalysts for industrial applications through three-dimensional carbon-based engineering.</p></div>","PeriodicalId":753,"journal":{"name":"Research on Chemical Intermediates","volume":"51 6","pages":"3019 - 3038"},"PeriodicalIF":2.8,"publicationDate":"2025-04-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144073962","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}
引用次数: 0
Innovative approaches in wastewater treatment: kinetic and isotherm investigation of dye adsorption on sulfur-modified PET fibers 废水处理的创新方法:硫改性PET纤维对染料吸附的动力学和等温线研究
IF 2.8 3区 化学
Research on Chemical Intermediates Pub Date : 2025-04-22 DOI: 10.1007/s11164-025-05599-0
Mutluhan Bıyıkoğlu
{"title":"Innovative approaches in wastewater treatment: kinetic and isotherm investigation of dye adsorption on sulfur-modified PET fibers","authors":"Mutluhan Bıyıkoğlu","doi":"10.1007/s11164-025-05599-0","DOIUrl":"10.1007/s11164-025-05599-0","url":null,"abstract":"<div><p>This study demonstrates the efficacy of sulfur-modified polyethylene terephthalate fibers (CS<sub>2</sub>-NaOH-IDA/GMA-PET) for the removal of methylene blue dye from aqueous solutions. Sulfur-containing xanthate structure was formed on PET fibers by innovative chemical modifications. Thus, the adsorption capacity and surface reactivity of the fibers were increased. The fibers exhibited optimal adsorption at a pH of 8, with a maximum capacity of 129.87 mg/g, while the adsorption kinetics followed a second-order model (q<sub>e</sub> = 7.5 mg/g, R<sup>2</sup> = 0.9985). Isothermal and thermodynamics studies have been also performed. The results showed that the Langmuir isotherm fitted the experimental results. And thermodynamic parameters such as ∆G°, ∆H° and ∆S° were calculated. The adsorption of methylene blue on CS<sub>2</sub>-NaOH-IDA/GMA-PET fibers is a spontaneous and endothermic process. Fourier-transform infrared spectroscopy and scanning electron microscopy analyses confirmed structural changes, and thermogravimetric analysis revealed reducing thermal stability due to the incorporation of functional groups. According to desorption and reusability studies, CS<sub>2</sub>-NaOH-IDA/GMA-PET fibers can be reused at least five times without significant change in the removal efficiency of MB dye. This study presents a novel approach by chemically modifying PET fibers through successive functionalization with GMA, IDA, NaOH, and CS<sub>2</sub>, resulting in a multi-functional adsorbent surface enriched with hydroxyl, carboxyl, amine, and sulfur-containing groups. Unlike conventional adsorbents, this composite demonstrates enhanced surface reactivity, high adsorption capacity, and excellent reusability. The use of PET as a base material also offers a sustainable and cost-effective alternative for industrial dye removal applications.</p><h3>Graphical abstract</h3>\u0000<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":753,"journal":{"name":"Research on Chemical Intermediates","volume":"51 6","pages":"3281 - 3299"},"PeriodicalIF":2.8,"publicationDate":"2025-04-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s11164-025-05599-0.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144074038","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Fabrication of BiOBr/CAU-17 Z-scheme heterojunction composites with enhanced photocatalytic performance for Rhodamine B degradation 增强光催化降解罗丹明B性能的BiOBr/CAU-17 z型异质结复合材料的制备
IF 2.8 3区 化学
Research on Chemical Intermediates Pub Date : 2025-04-22 DOI: 10.1007/s11164-025-05583-8
Yu Zhang, Xinyan Xiao, Fei Wang, Ting Lu, Xia Cheng
{"title":"Fabrication of BiOBr/CAU-17 Z-scheme heterojunction composites with enhanced photocatalytic performance for Rhodamine B degradation","authors":"Yu Zhang,&nbsp;Xinyan Xiao,&nbsp;Fei Wang,&nbsp;Ting Lu,&nbsp;Xia Cheng","doi":"10.1007/s11164-025-05583-8","DOIUrl":"10.1007/s11164-025-05583-8","url":null,"abstract":"<div><p>Photocatalytic degradation of dye wastewater has great potential due to its eco-friendly, simple, and solar energy-based characteristics. In this work, an energy-saving and convenient precipitation method was explored to compound two classical photocatalyst materials BiOBr and CAU-17. The Z-scheme heterojunction decreases the agglomeration of the BiOBr nanosheets and addresses the issue of the low photogenerated carrier participation rate of CAU-17. The solvothermal method was used to prepare CAU-17 nanorods, and then BiOBr nanosheets were grown on them at room temperature to fabricate BiOBr/CAU-17 composites. The samples were characterized by XRD, SEM, TEM, XPS, DRS, PL, EIS, and other techniques. The photodegradation performance was tested using Rhodamine B (RhB) as the model pollutant. The 80% BiOBr/CAU-17 composite (0.1 g/L) exhibited a degradation rate of 99.41% for RhB under simulated sunlight in 60 min, with an apparent rate constant of 0.0631 min⁻<sup>1</sup>, which is 3.45 times faster than pure BiOBr and 315.5 times faster than CAU-17. Free radical capture and EPR tests confirmed that<b> ·</b>O<sub>2</sub>⁻ and h⁺ were the main active species in the process, and a reasonable photocatalytic mechanism is proposed. Additionally, cyclic tests are conducted to confirm the stability and durability of the composite, proving the potential of BiOBr/CAU-17 composites for efficient and sustainable photocatalytic applications.</p></div>","PeriodicalId":753,"journal":{"name":"Research on Chemical Intermediates","volume":"51 6","pages":"3179 - 3201"},"PeriodicalIF":2.8,"publicationDate":"2025-04-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144074041","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}
引用次数: 0
Anion impact of two new organic phosphoric acid-based salts on spectroscopic characteristics, thermal behavior, and catalytic activity 两种新型有机磷酸基盐的阴离子对光谱特性、热行为和催化活性的影响
IF 2.8 3区 化学
Research on Chemical Intermediates Pub Date : 2025-04-22 DOI: 10.1007/s11164-025-05585-6
Lia Zaharani, Mohd Rafie Johan, Nader Ghaffari Khaligh
{"title":"Anion impact of two new organic phosphoric acid-based salts on spectroscopic characteristics, thermal behavior, and catalytic activity","authors":"Lia Zaharani,&nbsp;Mohd Rafie Johan,&nbsp;Nader Ghaffari Khaligh","doi":"10.1007/s11164-025-05585-6","DOIUrl":"10.1007/s11164-025-05585-6","url":null,"abstract":"<div><p>Selective solubility of a catalyst can be an advantage to easily separation the catalyst from reaction media after the reaction is complete. Two phosphoric acid-based organic salts with selective solubility were prepared by stirring 4,4ʹ-trimethylenedipiperidine (TMDP) with phosphoric acid (PA) (85 wt.%) at two different mole ratios of 1:1 and 1:2. The chemical structure of the products was characterized using spectroscopic techniques, including <sup>31</sup>P NMR, which demonstrated the formation of two distinct phosphoric-based organic salts. The melting point of products using a capillary tube in ambient conditions and the DSC profile in the nitrogen atmosphere confirmed that both products were molten salts (melting points &gt; 100 °C), contrary to a previous report. The detailed spectroscopic data, physical properties, and thermal behavior of new phosphoric acid-based organic salts were recorded and reported for the first time. Due to the abundance of active sites for donor and acceptor hydrogen bonds and their insolubility in organic solvents, even methanol and ethanol, as-prepared organic phosphoric acid-based salts were utilized as hydrogen bond catalysts in a multicomponent reaction to prepare pyrrolidinone scaffolds. A 100% conversion was achieved in the reaction using only 35 mg of TMDP-PA (1:2) and TMDP-PA (1:1) per 1 mmol of the substrate at 60 °C within 65 and 95 min, respectively. The substrate scope of the current catalytic protocol was explored using TMDP-PA (1:2), resulting in good to excellent products using a catalytic amount of TMDP-PA (1:2). Both molten salts exhibited high recyclability, and the recovered catalysts were successfully reused in consecutive runs without significant loss of activity. This study highlights the effectiveness of two new phosphoric acid-based organic salts as heterogeneous catalysts for organic synthesis.</p></div>","PeriodicalId":753,"journal":{"name":"Research on Chemical Intermediates","volume":"51 6","pages":"3383 - 3406"},"PeriodicalIF":2.8,"publicationDate":"2025-04-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144074040","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}
引用次数: 0
Ratiometric fluorescence sensing of besifloxacin based on oxygen-doped g-C3N4-MOF composite interface 基于氧掺杂g-C3N4-MOF复合界面的贝西沙星比率荧光传感
IF 2.8 3区 化学
Research on Chemical Intermediates Pub Date : 2025-04-22 DOI: 10.1007/s11164-025-05589-2
Min Zhang, Chenyang Huang, Chao He, Xing Zhang, Jie Zheng, Lei Lin
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