ChemistrySelect最新文献_第10页

Heterogeneously Catalyzed “One-Pot” Synthesis of Quinoline Derivatives: A Comprehensive Review 多相催化“一锅法”合成喹啉衍生物：综述

IF 1.9 4区化学

ChemistrySelect Pub Date : 2025-07-22 DOI: 10.1002/slct.202501633

Mona Yadav, Tejpal Singh Chundawat

引用次数: 0

Synthesis and Properties of Iron Clusters and Their Practical Applications in Carbon Nanotube Growth 铁团簇的合成、性质及其在碳纳米管生长中的实际应用

IF 1.9 4区化学

ChemistrySelect Pub Date : 2025-07-22 DOI: 10.1002/slct.202405513

Weiqiang Wei, Ya Xu, Zihan Wang, Chunyang Li, Dr. Prof. Huifang Li, Assoc. Prof. Changqing Chu, Dr. Prof. Yan He, Lisheng Zhang

{"title":"Synthesis and Properties of Iron Clusters and Their Practical Applications in Carbon Nanotube Growth","authors":"Weiqiang Wei, Ya Xu, Zihan Wang, Chunyang Li, Dr. Prof. Huifang Li, Assoc. Prof. Changqing Chu, Dr. Prof. Yan He, Lisheng Zhang","doi":"10.1002/slct.202405513","DOIUrl":"https://doi.org/10.1002/slct.202405513","url":null,"abstract":"This article reviews the roles of iron clusters as catalysts for the growth of carbon nanotubes (CNTs). The content covers the geometric structures of iron clusters, as well as their synthesis methods, including vapor deposition, solution chemistry methods, and thermal decomposition. The article discusses the influence of synthesis conditions on the morphology and size distribution of iron clusters. It also analyzes the physical properties of iron clusters, such as electronic structure, magnetism, stability, and catalytic activity. The article explores the mechanism of iron cluster catalysis for CNTs growth, emphasizing the role of nanoclusters in the growth process of CNTs. Smaller nanoclusters (>> 5 nm) usually promote multi-walled CNTs (MWCNTs), whereas larger nanoclusters (< 5 nm) are conducive to single-walled CNTs (SWCNTs). Strategies for enhancing the stability of nanoclusters at high temperatures are proposed. Finally, this article discusses the challenges of using nanoclusters to grow CNTs and explores possible future development directions in this field.","PeriodicalId":146,"journal":{"name":"ChemistrySelect","volume":"10 28","pages":""},"PeriodicalIF":1.9,"publicationDate":"2025-07-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144681082","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

One-Pot Three-Component Access to 2-Aminopyridine Derivatives 一锅三组分法获得2-氨基吡啶衍生物

IF 1.9 4区化学

ChemistrySelect Pub Date : 2025-07-22 DOI: 10.1002/slct.202502547

Ting Luo, Keyan Xue, Ruipeng Bao, Chengfei Tang, Xinhong Yu

{"title":"One-Pot Three-Component Access to 2-Aminopyridine Derivatives","authors":"Ting Luo, Keyan Xue, Ruipeng Bao, Chengfei Tang, Xinhong Yu","doi":"10.1002/slct.202502547","DOIUrl":"https://doi.org/10.1002/slct.202502547","url":null,"abstract":"Derivatives of 2-aminopyridines are recognized for their significant biological activity and hold considerable pharmaceutical value. However, the synthetic methodologies available, particularly multi-component reactions (MCRs), for preparing substituted 2-aminopyridine derivatives remain relatively scarce, limiting structural diversity. Addressing this challenge, our study introduces an innovative one-pot, three-component cascade strategy. This approach capitalizes on the synergistic interplay between Knoevenagel condensation and nucleophilic aromatic substitution (SNAr) reactions. Utilizing readily accessible starting materials—specifically 2-bromopyridine carboxaldehyde, ethyl cyanoacetate or cyanoacetamide, and diverse cyclic secondary amines—we efficiently assemble complex 2-aminopyridine scaffolds. The reaction proceeds smoothly in ethanol under reflux conditions at ambient pressure for a concise period of only 3 hours. This mild, eco-friendly, and highly efficient protocol achieves excellent yields of up to 94%. Its operational simplicity overcomes traditional synthesis limitations and significantly broadens the accessible substrate scope for these valuable compounds.","PeriodicalId":146,"journal":{"name":"ChemistrySelect","volume":"10 28","pages":""},"PeriodicalIF":1.9,"publicationDate":"2025-07-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144681049","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

First-Principles Insights into Superalkalis/Superhalogens-Doped Be₁₀O₁₀ Nanoring for Enhanced Harmonic Generation and Nonlinear Optical Response 超碱/超卤素掺杂Be₁₀O₁₀纳米化增强谐波产生和非线性光学响应的第一性原理研究

IF 1.9 4区化学

ChemistrySelect Pub Date : 2025-07-22 DOI: 10.1002/slct.202503027

Munazza Idrees, Adeel Mubarik, Xue-Hai Ju

{"title":"First-Principles Insights into Superalkalis/Superhalogens-Doped Be₁₀O₁₀ Nanoring for Enhanced Harmonic Generation and Nonlinear Optical Response","authors":"Munazza Idrees, Adeel Mubarik, Xue-Hai Ju","doi":"10.1002/slct.202503027","DOIUrl":"https://doi.org/10.1002/slct.202503027","url":null,"abstract":"By using the ωb97xd/6–31G(d,p) DFT approach, the enhanced structural, electrical, and optical properties of the Be10O10 doped with superalkali and superhalogens were investigated. The adsorption energies of the dopant molecules on Be10O10 indicate that their complexation is feasible. According to the DOS analysis, a new molecular orbital with the greatest energy has formed in the combined structure of the dopants and nanoring. As a consequence, the energy gap of the complex structures Li4O-Be10O10-II (4.181 eV) and AlF4-Be10O10-I (5.361 eV) seems to be significantly reduced. By using EDDM techniques, the NLO properties of the investigated complexes were evaluated. According to the EDDM findings, hyperpolarizability is enhanced by a donor-acceptor process that occurs when electrons are transferred from the Be10O10 to the dopants. The complexes exhibit isotropic NLO behavior with complex Li₄N-Be₁₀O₁₀-II showing high αaniso (1.21 × 102 a.u.) value. Doped isomers achieve high hyperpolarizability values of β = 9.91 × 103–2.05 × 10⁴ a.u with enhanced noncovalent interactions. Additionally, the computed second harmonic generation (SHG) β (−2ω, ω, ω) and the electro-optical Pockels effect (EOPE) β (−ω, ω, 0) at the frequencies of ω = 1064 nm (0.0428 au) and ω = 532 nm (0.0856 au) validate that all Be10O10 based isomers are potentially effective for high-performance nonlinear optical devices.","PeriodicalId":146,"journal":{"name":"ChemistrySelect","volume":"10 28","pages":""},"PeriodicalIF":1.9,"publicationDate":"2025-07-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144681429","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

Persulfate-Mediated Facile Oxidation of Aromatic/Aliphatic Aldehyde to Carboxylic Acid 过硫酸盐介导芳香族/脂肪族醛易氧化制羧酸

IF 1.9 4区化学

ChemistrySelect Pub Date : 2025-07-22 DOI: 10.1002/slct.202502707

Geeta Rathva, Dhaval Chauhan, Krimi Patel, Keshri Nath Tiwari, Jhillu Singh Yadav

引用次数: 0

Synthesis, Biological Evaluation, and Structure–Activity Relationships of Pyrrole Coumarin Conjugates Against Mycobacterium tuberculosis 吡咯香豆素偶联物抗结核分枝杆菌的合成、生物学评价及构效关系研究

IF 1.9 4区化学

ChemistrySelect Pub Date : 2025-07-22 DOI: 10.1002/slct.202501069

Preeti Rana, Manchella Sai Supriya, Mohammad Naiyaz Ahmad, Mohmmad Imran, Pradip Malik, Rupali Mahajan, Amit Asthana, Y. V. Madhavi, Arunava Dasgupta, Sidharth Chopra, Srinivas Nanduri

{"title":"Synthesis, Biological Evaluation, and Structure–Activity Relationships of Pyrrole Coumarin Conjugates Against Mycobacterium tuberculosis","authors":"Preeti Rana, Manchella Sai Supriya, Mohammad Naiyaz Ahmad, Mohmmad Imran, Pradip Malik, Rupali Mahajan, Amit Asthana, Y. V. Madhavi, Arunava Dasgupta, Sidharth Chopra, Srinivas Nanduri","doi":"10.1002/slct.202501069","DOIUrl":"https://doi.org/10.1002/slct.202501069","url":null,"abstract":"Considering the escalation of drug-resistant tuberculosis, there is an emerging need to develop new anti-tubercular agents with novel targets. In this context, a series of novel pyrrole coumarin conjugates were synthesized and evaluated against a mycobacterial pathogen panel consisting of Mycobacterium tuberculosis, M. abscessus, M. fortuitum, and M. chelonae. Most of the compounds exhibited selective anti-tubercular activity against M. tuberculosis with MICs ranging from 2 to 64 µg/mL. The active compounds were nontoxic toward Vero cells, demonstrating a favorable selectivity index. The active compounds were also tested against drug-resistant M. tuberculosis (DR-MTB) strains and found to be active against all resistant strains, with MIC values ranging from 2 to 4 µg/mL. Molecular docking studies were performed to gain insight into their mechanism of action, elucidating the potential binding mode and interactions at the enzyme's active site. Further, molecular dynamics simulation studies were carried out to validate the results obtained from the molecular docking study.","PeriodicalId":146,"journal":{"name":"ChemistrySelect","volume":"10 28","pages":""},"PeriodicalIF":1.9,"publicationDate":"2025-07-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144681046","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

Self-Healing Mechanism of Epoxy Resin Improved by Polydopamine Nanoparticles 聚多巴胺纳米粒子改性环氧树脂的自愈机制

IF 1.9 4区化学

ChemistrySelect Pub Date : 2025-07-22 DOI: 10.1002/slct.202502937

Yuhua Gao, Gongbin Wang, Meiyu Li, Yanxuan Ma, Qin Chang, Siyuan Wang, Dongying Xu, Shuangyang Fu

{"title":"Self-Healing Mechanism of Epoxy Resin Improved by Polydopamine Nanoparticles","authors":"Yuhua Gao, Gongbin Wang, Meiyu Li, Yanxuan Ma, Qin Chang, Siyuan Wang, Dongying Xu, Shuangyang Fu","doi":"10.1002/slct.202502937","DOIUrl":"https://doi.org/10.1002/slct.202502937","url":null,"abstract":"Thermosetting resins, due to their polymer structure, are easily damaged by mechanical, chemical, thermal, ultraviolet radiation and other factors, inevitably leading to local damage and microcracks difficult to detect, which impair mechanical properties and durability. To improve and test the self-healing properties of epoxy thermosetting resin, a protective coating with self-healing performance, polydopamine (PDA) self-healing modified epoxy resin (EP) composite material, was designed. The self-healing behavior and mechanism were tested and analyzed through tensile properties and digital speckle technology. Nano-PDA particles, synthesized via self-polymerization at pH = 9, exhibited uniform morphology and were incorporated into EP. Tensile performance experiments and digital speckle analysis were carried out on three types of composite materials, namely, PDA/EP, PDA/EP pre-damaged once, and PDA/EP pre-damaged three times. Therefore, 0.5wt%, 1.0wt%, and 1.5wt% PDA/EP composites exhibit varying degrees of reversible self-healing. When the PDA content is 1.0wt%, the strength recovery rate of the composite material reaches 87.1% after one pre damage and still reaches 83.9% after three pre damages. The strain cloud maps in the X and Y directions also indicate that PDA/EP materials can recover the structural stability at a certain degree after being per-damaged once or three times.","PeriodicalId":146,"journal":{"name":"ChemistrySelect","volume":"10 28","pages":""},"PeriodicalIF":1.9,"publicationDate":"2025-07-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144680982","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

Cytocompatible Electrolyte-Assisted Pseudocapacitive Electrode Based on Tin Monosulfide Nanoparticles 基于单硫化锡纳米颗粒的细胞相容性电解质辅助假电容电极

IF 1.9 4区化学

ChemistrySelect Pub Date : 2025-07-22 DOI: 10.1002/slct.202502542

J. Delphin, M. Daniel Sweetlin, D. S. Ivan Jebakumar

{"title":"Cytocompatible Electrolyte-Assisted Pseudocapacitive Electrode Based on Tin Monosulfide Nanoparticles","authors":"J. Delphin, M. Daniel Sweetlin, D. S. Ivan Jebakumar","doi":"10.1002/slct.202502542","DOIUrl":"https://doi.org/10.1002/slct.202502542","url":null,"abstract":"The growing demand for bio-integrated energy storage systems has sparked significant interest in the development of biocompatible and cost-competitive electrode materials for use in green electrolytes. To address the issue, we develop an electrode material based on tin monosulfide nanoparticles synthesized using a wet chemical method, which operates effectively in cyto-friendly phosphate buffered saline solution. The synthesized nanoparticles were crystallized in the orthorhombic phase, with an average crystallite size of 18 nm. Scanning electron micrographs revealed the presence of interconnected nanoparticles with roughly spherical shape. Electrical measurements confirm the dielectric properties of SnS nanoparticles as a function of frequency at different temperatures. The electrochemical analysis of the electrode fabricated from the SnS nanoparticles displays the electrochemical signature of pseudocapacitor. The fabricated pseudocapacitive electrode, with an areal specific capacitance of 44.7 mF cm−2 at a current density of 0.3 mA cm−2, delivers an areal energy density of 1.55 µW h cm−2 and an areal power density of 75 µW cm−2. All these findings demonstrate the significant potential of tin sulfide nanoparticles as an electrode material capable of operating under physiological conditions, making it suitable for use in implantable energy storage devices.","PeriodicalId":146,"journal":{"name":"ChemistrySelect","volume":"10 28","pages":""},"PeriodicalIF":1.9,"publicationDate":"2025-07-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144681044","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

Comprehensive Impact of Eaton's Reagent in Organic Synthesis: An Overview 伊顿试剂在有机合成中的综合影响：综述

IF 1.9 4区化学

ChemistrySelect Pub Date : 2025-07-21 DOI: 10.1002/slct.202502756

Satheeshkumar Rajendran, Nitin Bharat Charbe, Nikhil D. Amnerkar, Arul Murugesan, Saurabh C. Khadse, Sushesh Srivatsa Palakurthi, Sai Raghuveer Chava, Kolandaivel Prabha, Roberto Acevedo

{"title":"Comprehensive Impact of Eaton's Reagent in Organic Synthesis: An Overview","authors":"Satheeshkumar Rajendran, Nitin Bharat Charbe, Nikhil D. Amnerkar, Arul Murugesan, Saurabh C. Khadse, Sushesh Srivatsa Palakurthi, Sai Raghuveer Chava, Kolandaivel Prabha, Roberto Acevedo","doi":"10.1002/slct.202502756","DOIUrl":"https://doi.org/10.1002/slct.202502756","url":null,"abstract":"Eaton's reagent is a unique mixture of phosphorus pentoxide and methanesulfonic acid and has emerged as a versatile and potent catalyst in modern synthetic chemistry. This review provides a comprehensive overview of Eaton's reagent, detailing its preparation, mechanistic pathways, and diverse applications in organic synthesis. Since its introduction, Eaton's reagent has become invaluable, promoting a wide range of transformations, including Friedel–Crafts reactions, cyclodehydration, Beckmann rearrangement, aminolysis, and multi-component reactions. The reagent's distinct advantages over traditional catalysts, such as higher reactivity, milder reaction conditions, and improved yields, make it particularly effective for synthesizing heterocyclic compounds, pharmaceuticals, natural products, polymers, and advanced materials. Eaton's reagent has also been shown to facilitate solvent-free and eco-friendly synthetic methodologies, aligning with the increasing demand for sustainable chemical processes. This review consolidates recent advancements and applications of Eaton's reagent, underscoring its critical role in advancing synthetic methodologies and providing a foundation for future research to explore innovative reactions, mechanisms, and broader applications in organic synthesis.","PeriodicalId":146,"journal":{"name":"ChemistrySelect","volume":"10 28","pages":""},"PeriodicalIF":1.9,"publicationDate":"2025-07-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144672766","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

Ionic Liquid Functionalized Tragacanth Gum Hydrogel for Methyl Orange: Radiation Synthesis, Structure–Properties, and Selective Adsorption 甲基橙用离子液体功能化黄歌胶水凝胶：辐射合成、结构、性能及选择性吸附

IF 1.9 4区化学

ChemistrySelect Pub Date : 2025-07-21 DOI: 10.1002/slct.202501771

Xin Yang, Jifu Du, Zhen Dong, Long Zhao

{"title":"Ionic Liquid Functionalized Tragacanth Gum Hydrogel for Methyl Orange: Radiation Synthesis, Structure–Properties, and Selective Adsorption","authors":"Xin Yang, Jifu Du, Zhen Dong, Long Zhao","doi":"10.1002/slct.202501771","DOIUrl":"https://doi.org/10.1002/slct.202501771","url":null,"abstract":"The selective adsorption of purely targeted dye from mixed dye solutions draws significant attention for potential recovery and reuse. In this work, a series of alkyl substituted ionic liquids (1-alkyl -3-vinyl- imidazolium bromide [CnVIm]Br, n = 4, 6, 8, 10, and 12) modified tragacanth gum (TG-CnBr) was synthesized by radiation technique. The prepared TG based hydrogel was used to separate the molecules of methyl orange (MO) from the mixed anionic dyes. The correlation between the length of alkyl chain and the adsorption performance was investigated. TG-C12Br demonstrated the highest adsorption performance to MO among all the tested anionic dyes. The selectivity coefficient for MO versus indigo carmine (IC) and acid fuchsin (AF) are 5.856 and 107.5, respectively. The optimal conditions for the adsorption of MO were pH of 6.0, adsorbent dose of 0.6 mg/L, and contact time of 420 min. The maximum adsorption capacity of MO on TG-C12Br at 25, 35 and 50 °C are 389.11, 400.00, and 414.94 mg/g, respectively. The MO removal was enhanced under high salinity condition. The adsorption of MO probably through hydrophobic adsorption, hydrogen bond, electrostatic attraction, and π−π interactions. Therefore, TG-C12Br prepared by radiation technique exhibited a promising application prospect for selective adsorption of MO dye.","PeriodicalId":146,"journal":{"name":"ChemistrySelect","volume":"10 28","pages":""},"PeriodicalIF":1.9,"publicationDate":"2025-07-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144672782","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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