Journal of Fluorine Chemistry最新文献_第2页

α-perfluoroalkylthiolation reaction of β-ketoesters with perfluoroalkyl sulfoxides β-酮酯与全氟烷基亚砜的α-全氟烷基硫基化反应

IF 1.9 4区化学

Journal of Fluorine Chemistry Pub Date : 2026-04-01 Epub Date: 2026-04-13 DOI: 10.1016/j.jfluchem.2026.110568

Yang Li, Min Jiang, Jin-Tao Liu

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Expanding the biocatalytic toolbox: PLE-catalyzed kinetic resolution and lipophilicity modulation of 2-fluoroalkyl chroman-4-ols 扩展生物催化工具箱：2-氟烷基铬-4-醇的le催化动力学分解和亲脂性调节

IF 1.9 4区化学

Journal of Fluorine Chemistry Pub Date : 2026-04-01 Epub Date: 2026-04-07 DOI: 10.1016/j.jfluchem.2026.110566

Oleksii S. Timokhin , Andrii S. Rashevskyi , Olexandr V. Kucher , Dmytro Lesyk , Yuliia Holota , Petro Borysko , Stepan G. Pilyo , Oleksandr O. Grygorenko , Viktoriia S. Moskvina

{"title":"Expanding the biocatalytic toolbox: PLE-catalyzed kinetic resolution and lipophilicity modulation of 2-fluoroalkyl chroman-4-ols","authors":"Oleksii S. Timokhin , Andrii S. Rashevskyi , Olexandr V. Kucher , Dmytro Lesyk , Yuliia Holota , Petro Borysko , Stepan G. Pilyo , Oleksandr O. Grygorenko , Viktoriia S. Moskvina","doi":"10.1016/j.jfluchem.2026.110566","DOIUrl":"10.1016/j.jfluchem.2026.110566","url":null,"abstract":"<div><div>Chroman-4-ols bearing 2-fluoroalkyl substituents are highly valuable 3D scaffolds in medicinal chemistry. Herein, we report a robust chemoenzymatic methodology for the asymmetric synthesis of enantioenriched 2-fluoroalkyl-substituted chroman-4-ols. The approach features a highly diastereoselective reduction of 2-fluoroalkyl chromones followed by an efficient pig liver esterase (PLE)-catalyzed hydrolytic kinetic resolution of the corresponding racemic acetates. This sequence provided access to both enantiomers of the target chroman-4-ols – directly via the enzymatically cleaved (2<em>R</em>,4<em>R</em>)-alcohols and through mild alcoholysis of the unreacted (2<em>S</em>,4<em>S</em>)-acetates – with excellent optical purities (up to >99% <em>ee</em>) and high selectivity factors (typically <em>S</em> > 100) for a series of derivatives bearing CHF<sub>2</sub>, CF<sub>3</sub>, C<sub>2</sub>F<sub>5</sub>, CF<sub>2</sub>Me, and CF<sub>2</sub>Cl groups. Furthermore, systematic physicochemical profiling uncovered a pronounced dichotomy in lipophilicity: while the reduction of non-fluorinated chromones to chromanols results in a negligible change or slight increase in Log<em>P</em>, the reduction of their fluorinated analogs causes a substantial drop in lipophilicity. The proposed chemotypes enable simultaneous control over both the 3D stereochemical space and the ADME profile, allowing for rational design of fluorinated chroman-based potential therapeutics.</div></div>","PeriodicalId":357,"journal":{"name":"Journal of Fluorine Chemistry","volume":"291 ","pages":"Article 110566"},"PeriodicalIF":1.9,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147703212","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

Synthesis and biological activity of 2-SF5-pyridyl substituted analogs of commercial neonicotinoid insecticides Sulfoxaflor, Flupyradifurone, Imidacloprid and Thiamethoxam 新烟碱类商品杀虫剂亚砜、氟吡喃酮、吡虫啉和噻虫嗪的2- sf5 -吡啶取代类似物的合成及生物活性

IF 1.9 4区化学

Journal of Fluorine Chemistry Pub Date : 2026-04-01 DOI: 10.1016/j.jfluchem.2026.110565

Oleksandr S. Kanishchev , Andrew J.F. Edmunds , Peter Maienfisch , William R. Dolbier Jr

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Refrigerant solubility in 1-ethyl-3-methylimidazolium bis(fluorosulfonyl)imide and upper-bound for R-410A separation with ionic liquids 制冷剂在1-乙基-3-甲基咪唑双（氟磺酰基）亚胺中的溶解度和R-410A与离子液体分离的上界

IF 1.9 4区化学

Journal of Fluorine Chemistry Pub Date : 2026-04-01 Epub Date: 2026-04-30 DOI: 10.1016/j.jfluchem.2026.110571

Miguel Viar, Gabriel Zarca, Ane Urtiaga

{"title":"Refrigerant solubility in 1-ethyl-3-methylimidazolium bis(fluorosulfonyl)imide and upper-bound for R-410A separation with ionic liquids","authors":"Miguel Viar, Gabriel Zarca, Ane Urtiaga","doi":"10.1016/j.jfluchem.2026.110571","DOIUrl":"10.1016/j.jfluchem.2026.110571","url":null,"abstract":"<div><div>Ionic liquids (ILs) are promising entrainers for the separation of azeotropic refrigerant mixtures, particularly within the ongoing transition toward low-global-warming-potential (GWP) alternatives. The development of extractive distillation processes requires reliable vapor–liquid equilibrium (VLE) data and accurate thermodynamic models. In this work, the solubility of several hydrofluorocarbons (R-32, R-125 and R-134a), hydrofluoroolefins (R-1234yf and R-1234ze(E)) and CO₂ in 1-ethyl-3-methylimidazolium bis(fluorosulfonyl)imide ([C₂C₁im][FSI]) was experimentally determined over temperatures from 283.15 to 323.15 K and pressures up to 1.1 MPa applying the isochoric saturation method. All refrigerant/IL systems were satisfactorily described using both the Peng–Robinson equation of state coupled with the Boston–Mathias mixing rule and the Non-Random Two-Liquid (NRTL) activity coefficient model, yielding average absolute deviations below 1% and 6%, respectively. The relative absorption performance was assessed through the Henry’s law constants and mixing thermodynamic properties, showing that the IL selected exhibited high ideal selectivity towards different refrigerant blends. In the case of R-410A, a near-azeotropic mixture of R-32 and R-125, the [C<sub>2</sub>C<sub>1</sub>im][FSI] selectivity was higher than previously reported for any other IL with a fluorinated anion, yet lower than for nitrile-based ILs. Furthermore, an upper-bound relationship between the ideal R-32/R-125 selectivity and R-32 absorption capacity was reported for the first time, establishing a quantitative benchmark for future IL screening and design. The presented data and its subsequent analysis expand the available thermodynamic knowledge for refrigerant/IL systems and provide a basis for future development an IL-based separation process for R-410A.</div></div>","PeriodicalId":357,"journal":{"name":"Journal of Fluorine Chemistry","volume":"291 ","pages":"Article 110571"},"PeriodicalIF":1.9,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147797782","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

Erratum to “Fluoride ion detection with heterocyclic chromogenic and fluorogenic probes: Molecular design and response pathways” [Journal of Fluorine Chemistry 290 (2026) 110543] 对“杂环显色和荧光探针检测氟离子：分子设计和响应途径”的勘误[氟化学杂志290 (2026)110543]

IF 1.9 4区化学

Journal of Fluorine Chemistry Pub Date : 2026-04-01 Epub Date: 2026-03-19 DOI: 10.1016/j.jfluchem.2026.110560

Duraisamy Udhayakumari , A. Nanthakumar

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Obituary: Professor Herbert Walter Roesky (1935–2025) – transforming fluorine chemistry across the periodic table 讣告：赫伯特·沃尔特·罗斯基教授（1935-2025）——改变了元素周期表上的氟化学

IF 1.9 4区化学

Journal of Fluorine Chemistry Pub Date : 2026-04-01 DOI: 10.1016/j.jfluchem.2026.110563

Sakya S. Sen , Gašper Tavčar

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Corrigendum to “Luminescent, highly halogenated 2-(2-hydroxyphenyl)benzothiazole derivatives and their zinc complexes” [Journal of Fluorine Chemistry 2023, 270, 110165] “发光的，高度卤化的2-（2-羟基苯基）苯并噻唑衍生物及其锌配合物”的勘误表[氟化学杂志2023,270,110165]

IF 1.9 4区化学

Journal of Fluorine Chemistry Pub Date : 2026-04-01 Epub Date: 2026-03-01 DOI: 10.1016/j.jfluchem.2026.110551

Lana Hadi Chawishli , Aya Ibrahim , Svitlana Karamshuk , Hana Khan , Majid Motevalli , Saltanat Toiganbayeva , Isaac Abrahams , William P Gillin , Peter B Wyatt

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1H, 13C, 15N, and 19F random coil NMR shifts of trifluoromethyl-bearing amino acids 含三氟甲基氨基酸的1H， 13C， 15N和19F随机线圈核磁共振偏移

IF 1.9 4区化学

Journal of Fluorine Chemistry Pub Date : 2026-04-01 Epub Date: 2026-04-22 DOI: 10.1016/j.jfluchem.2026.110567

David Reiter, Selin Türk, Mario Schubert, Beate Koksch

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Acid-base equilibria in molten fluoride salts and their impact on molten salt reactors 熔盐中的酸碱平衡及其对熔盐反应器的影响

IF 1.9 4区化学

Journal of Fluorine Chemistry Pub Date : 2026-04-01 Epub Date: 2026-04-15 DOI: 10.1016/j.jfluchem.2026.110569

O. Hunsberger , G.S. Rakib , L. Vergari

{"title":"Acid-base equilibria in molten fluoride salts and their impact on molten salt reactors","authors":"O. Hunsberger , G.S. Rakib , L. Vergari","doi":"10.1016/j.jfluchem.2026.110569","DOIUrl":"10.1016/j.jfluchem.2026.110569","url":null,"abstract":"<div><div>Molten halide salts find use in a variety of applications, including fission reactors, fusion reactors, energy storage, and electrochemical processes. The breadth of applications of molten salts is made possible by the wide range of thermo-physical properties that can be obtained by tuning the salt composition. This wide range of variability can in part be attributed to acid-base equilibria, which can affect both solvent and solute behavior. While acid-base equilibria have been largely reviewed for chloride salts, owing to their wide use in electrochemical applications, only limited and sparse literature is present on acid-base equilibria in fluoride salts (i.e., fluoroacidity). Through this paper, we aim to clarify the inherent connection of fluoroacidity and molten salt chemical structure, illustrating how knowledge of the fluoroacidity of a given salt can be used to predict the physicochemical properties of such salt. In our analysis, we observe that fluoroacidity influences solvent (viscosity, self-diffusivities, electrical conductivity, thermal conductivity) and solute properties (solubility, diffusion coefficients, vapor pressures). We complement this analysis with a review of experimental and computational methods to evaluate the fluoroacidity of the salt, describing a wide range of techniques that can be used to indirectly probe fluoroacidity. The effects of radiation on fluoroacidity and the relationship between fluoroacidity and corrosion emerge as key knowledge gaps. Additionally, the development of direct methods for fluoroacidity quantification emerges as an important engineering objective.</div></div>","PeriodicalId":357,"journal":{"name":"Journal of Fluorine Chemistry","volume":"291 ","pages":"Article 110569"},"PeriodicalIF":1.9,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147749734","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

Catalyst and additive-free electrophilic trifluoromethylthiolation for the synthesis of CF3S-substituted indole and its derivatives in water 在水中合成cf3s取代吲哚及其衍生物的无催化剂和添加剂亲电性三氟甲基硫基化

IF 1.9 4区化学

Journal of Fluorine Chemistry Pub Date : 2026-04-01 Epub Date: 2026-04-02 DOI: 10.1016/j.jfluchem.2026.110564

Xiaolong Wang, Pei Zhang, Chunhua Han, Yang Zhang

引用次数: 0