ChemistryOpen最新文献

{"title":"Toward Polymeric Room Temperature Acid Generators","authors":"Joel W. Roberts,&nbsp;Amie N. Lanzendorf,&nbsp;Jazmin E. Aguilar-Romero,&nbsp;Mara L. Paterson,&nbsp;Catherine A. Jalomo,&nbsp;Ephraim G. Morado,&nbsp;Steven C. Zimmerman","doi":"10.1002/open.202400289","DOIUrl":"10.1002/open.202400289","url":null,"abstract":"<p>Although a variety of acid-generating molecules have been developed, the formation of toxic byproducts and the need for light-activation or temperatures that may be incompatible with physiological conditions leave room for the optimization of biocompatible acid-generators. Herein, we report 4-hydroxybenzyl chloride derivatives that generate hydrochloric acid via hydrolysis at the benzylic position at room temperature in the absence of light. Utilizing the acetal protected 4-hydroxybenzyl chloride scaffold, we access a myriad of compounds that generate acid at different rates.</p>","PeriodicalId":9831,"journal":{"name":"ChemistryOpen","volume":"14 3","pages":""},"PeriodicalIF":2.5,"publicationDate":"2024-11-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/open.202400289","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142726521","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Molecular Hybrids of Quinoline and Sulfonamide: Design, Synthesis and in Vitro Anticancer Studies","authors":"Padyala Panduranga,&nbsp;Parameshwar Makam,&nbsp;Naresh Kumar Katari,&nbsp;Rambabu Gundla,&nbsp;Sreekantha Babu Jonnalagadda,&nbsp;Bharat Kumar Tripuramallu","doi":"10.1002/open.202400334","DOIUrl":"10.1002/open.202400334","url":null,"abstract":"<p>Molecular hybrids of diversely functionalized quinoline and sulfonamide have been designed. Multistep synthetic strategies have been used for the synthesis. The anti-cancer properties have been evaluated against various cancer cell lines including HCT116, A549, U2OS, CCRF-CEM, Jurkat, MOLT-4, RAMOS, and K562. Non-cancer cell lines MRC-5 and BJ were also included for comparison. When examining the effects on A549, HCT116, and U2OS cells, all tested compounds exhibited limited potency with IC₅₀ values exceeding 50 μM, indicating weak activity against these cell lines. Against the ITK high cells <i>Viz</i>. are Jurkat, CCRF-CEM and MOLT-4, <b>9 e, 9 p</b> and <b>9 j</b> found to the maximum potent compounds with IC₅₀ values of 7.43±7.40 μM, 13.19±1.25 μM and 5.57±7.56 μM respectively. Similarly, in the BTK high cells screenings, <b>9 n</b> and <b>9 e</b> molecules with an IC₅₀ value of 2.76±0.79 μM and 5.47±1.71 μM against RAMOS and K562 respectively are highly potent. Interestingly, all the molecules have exhibited IC₅₀ value &gt;50 μM against the non-cancer cells (MRC-5 and BJ), which indicates the promising non-cytotoxic nature of the molecules.</p>","PeriodicalId":9831,"journal":{"name":"ChemistryOpen","volume":"14 3","pages":""},"PeriodicalIF":2.5,"publicationDate":"2024-11-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/open.202400334","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142726509","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Newly Synthesized Citral Derivatives Serve as Novel Inhibitor in HepG2 Cells.","authors":"Wei Gao, Xiaoju Hua, Shengliang Liao, Zhikai Xiahou, Haikuan Yang, Lifang Hu, Yunyang Chi","doi":"10.1002/open.202400112","DOIUrl":"https://doi.org/10.1002/open.202400112","url":null,"abstract":"<p><p>2H-pyran compound 1 synthesized from 6-methylpyridine-2,4-diol and citral, has been used for Cu-catalyzed N-arylation with a range of arylboric acids to obtain arylated pyranopyridine core structure derivatives (yield up to 77 %). Among them, compound 3 h exhibited a much better inhibitory effect on HepG2 liver cancer cells compared to citral, and the IC₅₀ value was 5.3 μM following exposure with the newly synthesized derivatives (herein named 3 h for short in this paper), which was lower than that of the cisplatin (6.5 μM). Meanwhile, the cell-cycle arrest of HepG2 cells occurred in the S phase, and the apoptosis of HepG2 cells was significantly increased with increasing drug concentration. In addition, real-time fluorescence quantification PCR and Western blotting experiments showed that the expression of apoptotic protein BAX was increased, while the expression of anti-apoptotic protein BCL2 was inhibited in a dose-dependent fashion. The results of these experiments indicated that apoptosis was promoted in HepG2 cells via apoptotic signaling pathway activated by 3 h. Furthermore, 3 h effectively decreased the phosphorylation levels of PI3 K, ATK and ERK, resulting in the inhibitions of MAPK/ERK and PI3 K/ATK signaling pathways. Briefly, 3 h has been found to show inhibitory effects on the survival of HepG2 liver cancer cells and may be used as anti-cancer drug in the future.</p>","PeriodicalId":9831,"journal":{"name":"ChemistryOpen","volume":" ","pages":"e202400112"},"PeriodicalIF":2.5,"publicationDate":"2024-11-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142726512","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}

{"title":"Plant-Derived Natural Products and Their Nano Transformation: A Sustainable Option Towards Desert Locust Infestations","authors":"Patrick Mangundu,&nbsp;Rebaone Makaudi,&nbsp;Hugues Kamdem Paumo,&nbsp;Bathabile Ramalapa,&nbsp;Lesego Tshweu,&nbsp;Naledi Raleie,&nbsp;Lebogang Katata-Seru","doi":"10.1002/open.202400271","DOIUrl":"10.1002/open.202400271","url":null,"abstract":"<p>The desert locust has been recognized as the most devastating migratory pest in the world. Swarms of this pest have been threatening vast regions of pastures and crops in Africa, Middle East, and South Asia. The biological management of expanding swarms has become a strategy of particular interest due to environmental awareness and economic issues associated with chemical pesticides. The present review aims to explore the latest updates and information about pesticidal plants that are distributed across Africa. Searches on Web of Science, Google Scholar, PubMed, and Scopus databases from 2013–2024 revealed a total of 22 plant species probed for insecticidal activities against desert locusts. The formulation, active ingredients, and biological effects of essential oils and other extracts from these plants are presented. Despite the promising anti-insecticidal effects of the plant extracts and compounds, issues related to their solubility and instability under environmental conditions have been observed. To address such major quality defects, methods for the encapsulation of plant natural products within nanostructures are detailed. Given the presence of bioactive compounds with nucleophiles bearing functional groups, the reported plant extracts have been exploited to fabricate metal nanoparticles with inherent insecticidal activities. In this paper, a holistic overview of prepared phytochemical-coated metal nanopesticides is also presented. In summary, this study offers insights into the integration of nanoformulated natural resources as a more sustainable option to control desert locust invasions.</p>","PeriodicalId":9831,"journal":{"name":"ChemistryOpen","volume":"14 3","pages":""},"PeriodicalIF":2.5,"publicationDate":"2024-11-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/open.202400271","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142726516","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Homochiral Self-Sorting During Macrocycle Formation and their Chiroptical Properties.","authors":"Diptiprava Sahoo, Soumen De","doi":"10.1002/open.202400400","DOIUrl":"https://doi.org/10.1002/open.202400400","url":null,"abstract":"<p><p>Several BINOL-derived C2-symmetric aldehydes were synthesized to investigate chiral self-sorting phenomena during macrocycle formation in the presence of aliphatic and aromatic bisamines. While self-sorting was unsuccessful with aliphatic amines, aromatic amine dictated complete homochiral self-sorting, confirmed by ¹H NMR analysis and molecular modelling. Additionally, the impact of macrocyclization on the chiroptical properties of these macrocycles was examined. The Cotton effects band red-shifted for aromatic amines owing to extended conjugation. Notably, a substantial increase in specific rotation was observed upon macrocycle formation.</p>","PeriodicalId":9831,"journal":{"name":"ChemistryOpen","volume":" ","pages":"e202400400"},"PeriodicalIF":2.5,"publicationDate":"2024-11-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142726489","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}

{"title":"Lightweight 3D-net Copper-Plated Polyimide Current Collector for Lithium-Ion Batteries.","authors":"Tingyu Song, Yonggang Min","doi":"10.1002/open.202400018","DOIUrl":"https://doi.org/10.1002/open.202400018","url":null,"abstract":"<p><p>Current collector (CC) is an indispensable constituent in lithium-ion battery (LIB). It plays an important role in supporting electrode materials and conducting electrons between the electrode materials and the external circuit. However, the density of metal CC is high and it hinders the lightweight development of LIB. In this work, lightweight three-dimensional (3D) CC was designed and prepared via a facile electroless plating method. The 3D copper-plated polyimide CC has a low areal density. The 3D structure of Cu-PI CC 2 can facilitate Li⁺ transfer between electrode materials and electrolyte owing to electrolyte can permeate through electrode. Moreover, the lithium titanate anode assembled with the 3D copper-plated polyimide Cu-PI CC 2 exhibited enhanced cycling and rate performance.</p>","PeriodicalId":9831,"journal":{"name":"ChemistryOpen","volume":" ","pages":"e202400018"},"PeriodicalIF":2.5,"publicationDate":"2024-11-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142726499","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}

{"title":"Evaluation of Multidentate Ligands Derived from Ethyl 1,2,4-triazine-3-carboxylate Building Blocks as Potential An(III)-Selective Extractants for Nuclear Reprocessing.","authors":"Andrey V Zaytsev, Petr Distler, Jan John, Andreas Wilden, Giuseppe Modolo, Mark Sims, Frank W Lewis","doi":"10.1002/open.202400306","DOIUrl":"https://doi.org/10.1002/open.202400306","url":null,"abstract":"<p><p>Bis-1,2,4-triazine ligands are amongst the most promising soft N-donor ligands for the partitioning of trivalent actinides from trivalent lanthanides; a key separation proposed in the future reprocessing of spent nuclear fuels. In an effort to improve the extraction properties of these benchmark ligands, we propose herein a general ligand design approach that is inspired by the field of drug discovery, and we apply it to a new class of ligands in which the bidentate 3-(2-pyridyl)-1,2,4-triazine unit of the benchmark ligands is replaced by a bidentate 1,2,4-triazine-3-carboxamide unit. A series of nine novel ligands were synthesized by reactions of readily available ethyl 1,2,4-triazine-3-carboxylate building blocks with different polyamine cores and evaluated for their ability to extract and separate Am(III) and Cm(III) from Eu(III). One of the reported ligands can co-extract Am(III) and Eu(III) from nitric acid into cyclohexanone, albeit with no selectivity between the metal ions. NMR titration experiments suggested that ligand 23 b formed a chiral 1 : 1 complex species with La(III) but not Lu(III) or Y(III), suggesting the coordination cavity of the ligand is sensitive to the size of the metal ion. The structures and thermodynamic parameters for the proposed complexes were further supported by DFT calculations.</p>","PeriodicalId":9831,"journal":{"name":"ChemistryOpen","volume":" ","pages":"e202400306"},"PeriodicalIF":2.5,"publicationDate":"2024-11-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142726486","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}

{"title":"A Facile Synthesis of 3-Substituted Coumarins and Investigation of Their 3CLpro Inhibition Activity Against SARS-CoV-2.","authors":"Manoj K Choudhary, Khalid Ansari, Vivek Junghare, Sandip K Nayak, Saugata Hazra, Soumyaditya Mula","doi":"10.1002/open.202400319","DOIUrl":"https://doi.org/10.1002/open.202400319","url":null,"abstract":"<p><p>The major threat to public health due to the outbreak of severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2) infection has been recognised as a global issue. The increase in morbidity is primarily due to the lack of SARS-CoV-2 specific drugs. One of the major strategies to combat this threat is to deactivate the enzymes responsible for the replication of corona virus. To this end, 3-arylidene/3-hydroxycoumarin induced deactivation of 3-chymotrypsin like protease (3CLpro) enzyme, which takes the pivotal role in the replication and maturation, was investigated. For ready availability of the compounds for the above investigation, we have developed a user-friendly protocol for the synthesis 3-hydroxycoumarin derivatives from cheap and readily available starting materials in two steps; i) Bronsted acid catalysed Friedel-Crafts alkylation of phenols with Morita-Baylis-Hillman adducts followed by intramolecular lactonization to trans-3-arylidenechroman-2-ones in one-pot and ii) ozonolysis in reasonably good yields. Pharmacokinetic assessments of coumarin derivatives revealed drug-like characteristics with moderate or low toxicity values. Notably, these hydroxycoumarins exhibited enhanced binding affinity against the 3CL protease of SARS-CoV-2, fitting well into the binding pocket akin to the previously studied inhibitor N3. Furthermore, a molecular dynamics study elucidated the dynamic behaviour of these small molecules when bound to the protein, showcasing intriguing complexities within the active site. Despite backbone variations and residual fluctuations, compounds 3 d-f and 6 a exhibited a consistent behaviour, instilling confidence in the therapeutic potential of these coumarins for combating SARS-CoV-2.</p>","PeriodicalId":9831,"journal":{"name":"ChemistryOpen","volume":" ","pages":"e202400319"},"PeriodicalIF":2.5,"publicationDate":"2024-11-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142726454","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}

{"title":"Moisture Sorption by Low-Cost Pyridinium-Based Protic Ionic Liquids: Kinetics and Physico-Electrochemical Properties","authors":"Sayyar Muhammad,&nbsp; Najia,&nbsp;Zarshad Ali,&nbsp;Samina Aziz,&nbsp;Muhammad Hammad Khan,&nbsp;Maroosh Iqbal,&nbsp;Umair Hassan,&nbsp;Jalal Khan,&nbsp;Asad Ali","doi":"10.1002/open.202400165","DOIUrl":"10.1002/open.202400165","url":null,"abstract":"<p>We report the synthesis of two pyridinium-based room temperature protic ionic liquids (PILs), pyridinium bisulfate, [HPyr][HSO₄] and pyridinium sulphate, [HPyr]₂[SO₄] and investigation of the kinetics of their water sorption behaviour and its influence on their density, ionic conductivity, and potential windows. The PILs were synthesized by the reaction of pyridine base with an acid, H₂SO₄, under solventless conditions, and confirmed by FTIR spectroscopy and 1H NMR spectra. The appearance vibration bands in the 3095–3252 cm⁻¹ range for −NH⁺ stretching in the FTIR spectra and a peak at a chemical shift of 8.439 ppm in the 1H-NMR of the liquids confirm their synthesis as no such bands/peaks can be seen in that of the pure pyridine spectra. The PILs’ hygroscopic nature was examined by exposing them (5 mL each sample with exposed surface area 3.143 cm²) to air for varied time intervals at a relative humidity, RH=58±5 % and T=20±5 °C. Coulometric Karl-Fischer (KF) titration was used to determine how much moisture each PIL sample absorbed at each time interval. The findings reveal that when the PIL was exposed to air for longer periods of time, more moisture was absorbed, and the results correspond well with the pseudo first-order kinetic model. The densities and conductivities of several samples of the two PILs were examined, and it was discovered that as the percentage water content of the PILs grew, density decreased but conductivities increased. Furthermore, it was discovered that when temperature rose, the conductivity of each of the PILs increased, and the results fit well to the Arrhenius linear equation since the regression coefficient, R², for each of the samples approached the perfect fit value of one. The electrochemical window (EW) data, the mechanism of moisture oxidation within the EWs of each PIL at Pt and Au electrodes, and the electrocatalytic role played by the Pt and Au surface oxides during ethanol oxidation are evaluated and discussed in light of their future sustainable energy applications.</p>","PeriodicalId":9831,"journal":{"name":"ChemistryOpen","volume":"14 1","pages":""},"PeriodicalIF":2.5,"publicationDate":"2024-11-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11726693/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142726505","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"CO2 Photoreduction Under Visible Light by TiO2 and Carbon Dots Derived from Pyrolized Bio-Oil","authors":"Miss Giorgia Ferraro,&nbsp;Dr. Marco Pizzolato,&nbsp;Miss Teresa Botrè,&nbsp;Prof. Giuseppina Cerrato,&nbsp;Prof. Federica Menegazzo,&nbsp;Prof. Michela Signoretto","doi":"10.1002/open.202400286","DOIUrl":"10.1002/open.202400286","url":null,"abstract":"<p>Herein, we report a study on pyrolysis bio-oil upgrading from leather shaving waste to dope in situ titania (TiO₂) with carbon dots (cds). The cds doped TiO₂ exhibits remarkable activity as photocatalyst under solar light for the direct conversion of carbon dioxide (CO₂) and water vapor (H₂O) to methane (CH₄). Morover, the catalytic activity also increased under uv radiation.</p>","PeriodicalId":9831,"journal":{"name":"ChemistryOpen","volume":"14 2","pages":""},"PeriodicalIF":2.5,"publicationDate":"2024-11-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/open.202400286","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142726456","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}