首页 > 最新文献
paperpass

Journal of Fluorine Chemistry最新文献

英文 中文
Visible light-induced photolysis of phosphonium iodides for the radical arylthiodifluoromethylation of isocyanides 可见光诱导的异氰化物自由基芳基硫代二氟甲基化的碘化磷光解
IF 1.9 4区 化学 Q3 CHEMISTRY, INORGANIC & NUCLEAR Pub Date : 2026-04-01 Epub Date: 2026-04-23 DOI: 10.1016/j.jfluchem.2026.110570
Guikai Ye, Weidong Meng, Yangen Huang
A photo-induced charge transfer complexation strategy with phosphonium iodides has been developed to enable arylthiodifluoromethylation reactions of isocyanides. The transformation proceeds via addition of the arylthiodifluoromethyl radical which is generated by photolysis of the arylthiodifluoromethyl phosphonium iodide to the isonitrile group followed by intramolecular cyclization. This strategy provides a convenient, mild, and green approach for the synthesis of arylthiodifluoromethylated phenanthridines and isoquinolines.
采用光诱导电荷转移络合策略与碘化磷进行了异氰化物芳基硫代二氟甲基化反应。转化通过将芳基硫代二氟甲基碘化磷光解生成的芳基硫代二氟甲基自由基加成到异腈基上,然后进行分子内环化。该策略为合成芳基硫代二氟甲基化菲咯啉和异喹啉提供了一种方便、温和和绿色的方法。
{"title":"Visible light-induced photolysis of phosphonium iodides for the radical arylthiodifluoromethylation of isocyanides","authors":"Guikai Ye,&nbsp;Weidong Meng,&nbsp;Yangen Huang","doi":"10.1016/j.jfluchem.2026.110570","DOIUrl":"10.1016/j.jfluchem.2026.110570","url":null,"abstract":"<div><div>A photo-induced charge transfer complexation strategy with phosphonium iodides has been developed to enable arylthiodifluoromethylation reactions of isocyanides. The transformation proceeds via addition of the arylthiodifluoromethyl radical which is generated by photolysis of the arylthiodifluoromethyl phosphonium iodide to the isonitrile group followed by intramolecular cyclization. This strategy provides a convenient, mild, and green approach for the synthesis of arylthiodifluoromethylated phenanthridines and isoquinolines.</div></div>","PeriodicalId":357,"journal":{"name":"Journal of Fluorine Chemistry","volume":"291 ","pages":"Article 110570"},"PeriodicalIF":1.9,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147749732","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
Preparation and synthetic applications of polyfluoroalkanethioamides✰ 聚氟烷硫酰胺的制备及合成应用
IF 1.9 4区 化学 Q3 CHEMISTRY, INORGANIC & NUCLEAR Pub Date : 2026-02-01 Epub Date: 2026-02-25 DOI: 10.1016/j.jfluchem.2026.110549
Sergiy S. Mykhaylychenko, Yuriy G. Shermolovich
Polyfluoroalkyl-substituted thioamides have attracted growing interest over the past two decades and have currently emerged as versatile fluorine-containing building-blocks. In the first part of the review, the different synthetic approaches developed so far for the preparation of polyfluoroalkanethioamides have been described and analyzed, with emphasis on their scope and limitations. In the second part, the chemical properties of polyfluoroalkanethioamides are discussed, highlighting a variety of their applications in the synthesis of organofluorine compounds that underscore their high synthetic potential. The review covers the literature published from 1956, when the synthesis of polyfluoroalkanethioamides was first reported, until the present. The bibliography contains 121 references.
在过去二十年中,多氟烷基取代的硫酰胺引起了越来越多的兴趣,目前已成为多功能含氟基石。在审查的第一部分中,对迄今为止为制备多氟烷硫酰胺而开发的不同合成方法进行了描述和分析,重点介绍了它们的范围和局限性。第二部分讨论了聚氟烷硫酰胺的化学性质,重点介绍了它们在合成有机氟化合物方面的各种应用,强调了它们具有很高的合成潜力。本综述涵盖了从1956年首次报道聚氟烷硫酰胺合成到现在为止发表的文献。参考书目包含121篇参考文献。
{"title":"Preparation and synthetic applications of polyfluoroalkanethioamides✰","authors":"Sergiy S. Mykhaylychenko,&nbsp;Yuriy G. Shermolovich","doi":"10.1016/j.jfluchem.2026.110549","DOIUrl":"10.1016/j.jfluchem.2026.110549","url":null,"abstract":"<div><div>Polyfluoroalkyl-substituted thioamides have attracted growing interest over the past two decades and have currently emerged as versatile fluorine-containing building-blocks. In the first part of the review, the different synthetic approaches developed so far for the preparation of polyfluoroalkanethioamides have been described and analyzed, with emphasis on their scope and limitations. In the second part, the chemical properties of polyfluoroalkanethioamides are discussed, highlighting a variety of their applications in the synthesis of organofluorine compounds that underscore their high synthetic potential. The review covers the literature published from 1956, when the synthesis of polyfluoroalkanethioamides was first reported, until the present. The bibliography contains 121 references.</div></div>","PeriodicalId":357,"journal":{"name":"Journal of Fluorine Chemistry","volume":"290 ","pages":"Article 110549"},"PeriodicalIF":1.9,"publicationDate":"2026-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147397941","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
Suzuki-Miyaura cross-couplings from carboxylic acids via in situ acyl fluoride electrophiles 通过原位酰氟亲电试剂从羧酸中产生的Suzuki-Miyaura交叉偶联
IF 1.9 4区 化学 Q3 CHEMISTRY, INORGANIC & NUCLEAR Pub Date : 2026-02-01 Epub Date: 2026-01-10 DOI: 10.1016/j.jfluchem.2026.110537
Liam N.D. Beardmore, Alexander J. Hague, Steven L. Cobb, William D.G. Brittain
Acyl fluorides have been previously shown to be competent electrophiles in the generation of ketones via Suzuki-Miyaura Cross-Couplings. However, such methodologies rely on isolated, pre-formed acyl fluorides which hampers the scope and flexibility of these approaches. In addition many acyl fluorides are unstable under ambient conditions and they suffer from instability during synthesis, isolation, or storage. Herein we report the use of an in situ generation of acyl fluorides in combination with Suzuki-Miyaura Cross-Coupling to generate di-aryl ketones. This allows the direct conversion of ubiquitous carboxylic acids to highly valuable ketones. The developed methodology was also found to be applicable to a range of aromatic and heteroaromatic carboxylic acids, affording an increased reaction scope compared to contemporary approaches.
酰基氟化物已被证明是通过铃木-宫浦交叉偶联产生酮的亲电试剂。然而,这种方法依赖于分离的、预先形成的酰基氟化物,这妨碍了这些方法的范围和灵活性。此外,许多酰基氟化物在环境条件下是不稳定的,它们在合成、分离或储存过程中遭受不稳定。在这里,我们报告使用原位生成酰基氟化物与Suzuki-Miyaura交叉偶联相结合来生成二芳基酮。这使得无处不在的羧酸直接转化为高价值的酮。开发的方法也被发现适用于一系列芳香族和杂芳香族羧酸,与当代方法相比,提供了更大的反应范围。
{"title":"Suzuki-Miyaura cross-couplings from carboxylic acids via in situ acyl fluoride electrophiles","authors":"Liam N.D. Beardmore,&nbsp;Alexander J. Hague,&nbsp;Steven L. Cobb,&nbsp;William D.G. Brittain","doi":"10.1016/j.jfluchem.2026.110537","DOIUrl":"10.1016/j.jfluchem.2026.110537","url":null,"abstract":"<div><div>Acyl fluorides have been previously shown to be competent electrophiles in the generation of ketones via Suzuki-Miyaura Cross-Couplings. However, such methodologies rely on isolated, pre-formed acyl fluorides which hampers the scope and flexibility of these approaches. In addition many acyl fluorides are unstable under ambient conditions and they suffer from instability during synthesis, isolation, or storage. Herein we report the use of an <em>in situ</em> generation of acyl fluorides in combination with Suzuki-Miyaura Cross-Coupling to generate di-aryl ketones. This allows the direct conversion of ubiquitous carboxylic acids to highly valuable ketones. The developed methodology was also found to be applicable to a range of aromatic and heteroaromatic carboxylic acids, affording an increased reaction scope compared to contemporary approaches.</div></div>","PeriodicalId":357,"journal":{"name":"Journal of Fluorine Chemistry","volume":"290 ","pages":"Article 110537"},"PeriodicalIF":1.9,"publicationDate":"2026-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145975212","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
Regioselective syntheses of 5-polyfluoroalkyl-3-hydroxyfuranes by oxidative cyclization of 6-polyfluoroalkyl-1-arylhexane-1,3,5-triones with hypervalent iodine(III) compounds 6-多氟烷基-1-芳基己烷-1,3,5-三酮与高价碘(III)化合物氧化环化合成5-多氟烷基-3-羟基呋喃
IF 1.9 4区 化学 Q3 CHEMISTRY, INORGANIC & NUCLEAR Pub Date : 2026-02-01 Epub Date: 2026-02-02 DOI: 10.1016/j.jfluchem.2026.110542
Ivan A. Kochnev, Alexey Y. Barkov
In this work, regioselective cyclization of 6-polyfluoroalkyl-1-arylhexane-1,3,5-triones to 5-polyfluoroalkyl-3-hydroxyfuranes is reported. The synthesis of 5-polyfluoroalkyl-3-hydroxyfuranes is based on hypervalent iodine (III)-mediated oxidative cyclization of 6-polyfluoroalkyl-1-arylhexane-1,3,5-triones in DCM. The effect of the hypervalent iodine (III) reagents, bases and solvents has been studied. This convenient and simple method allows the gram-scale synthesis of 5-polyfluoroalkyl-3-hydroxyfuranes with yields up to 67 %.
本文报道了6-多氟烷基-1-芳基己烷-1,3,5-三酮的区域选择性环化成5-多氟烷基-3-羟基呋喃。基于高价碘(III)介导的DCM中6-多氟烷基-1-芳基己烷-1,3,5-三酮的氧化环化,合成了5-多氟烷基-3-羟基呋喃。研究了高价碘(III)的试剂、碱和溶剂的影响。该方法简便、简单,可实现克级5-多氟烷基-3-羟基呋喃的合成,收率可达67%。
{"title":"Regioselective syntheses of 5-polyfluoroalkyl-3-hydroxyfuranes by oxidative cyclization of 6-polyfluoroalkyl-1-arylhexane-1,3,5-triones with hypervalent iodine(III) compounds","authors":"Ivan A. Kochnev,&nbsp;Alexey Y. Barkov","doi":"10.1016/j.jfluchem.2026.110542","DOIUrl":"10.1016/j.jfluchem.2026.110542","url":null,"abstract":"<div><div>In this work, regioselective cyclization of 6-polyfluoroalkyl-1-arylhexane-1,3,5-triones to 5-polyfluoroalkyl-3-hydroxyfuranes is reported. The synthesis of 5-polyfluoroalkyl-3-hydroxyfuranes is based on hypervalent iodine (III)-mediated oxidative cyclization of 6-polyfluoroalkyl-1-arylhexane-1,3,5-triones in DCM. The effect of the hypervalent iodine (III) reagents, bases and solvents has been studied. This convenient and simple method allows the gram-scale synthesis of 5-polyfluoroalkyl-3-hydroxyfuranes with yields up to 67 %.</div></div>","PeriodicalId":357,"journal":{"name":"Journal of Fluorine Chemistry","volume":"290 ","pages":"Article 110542"},"PeriodicalIF":1.9,"publicationDate":"2026-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147397905","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
Fluoride ion detection with heterocyclic chromogenic and fluorogenic probes: Molecular design and response pathways 杂环显色和荧光探针检测氟离子:分子设计和反应途径
IF 1.9 4区 化学 Q3 CHEMISTRY, INORGANIC & NUCLEAR Pub Date : 2026-02-01 Epub Date: 2026-01-31 DOI: 10.1016/j.jfluchem.2026.110543
Duraisamy Udhayakumari , A. Nanthakumar
Fluoride ions exhibit a dual nature as essential trace elements and potential toxicants, demanding sensitive and selective detection methods. Chromogenic and fluorogenic chemosensors have emerged as effective tools due to their simplicity, rapid response, and visual readout. In this context, heterocycle-based molecular probes have attracted increasing attention for fluoride sensing owing to their tunable electronic properties, strong anion–receptor interactions, and versatile signal transduction mechanisms. This review summarizes recent advances in heterocyclic chromogenic and fluorogenic probes for toxic fluoride ion detection, with emphasis on molecular design strategies such as hydrogen bonding, deprotonation, Lewis acid–base interactions, and reaction-based sensing. Key photophysical pathways, including ICT, PET, ESIPT, and AIE, are discussed to elucidate structure–property–function relationships. Challenges such as interference from basic anions, solvent effects, and limited aqueous compatibility are highlighted, along with future perspectives to guide the development of robust heterocycle-based probes for reliable fluoride monitoring.
氟离子表现出必需微量元素和潜在毒物的双重性质,需要灵敏和选择性的检测方法。显色和荧光化学传感器由于其简单,快速反应和视觉读数而成为有效的工具。在此背景下,基于杂环的分子探针由于其可调谐的电子特性、强阴离子受体相互作用和通用的信号转导机制而引起了越来越多的关注。本文综述了用于毒性氟离子检测的杂环显色和荧光探针的最新进展,重点介绍了氢键、去质子化、路易斯酸碱相互作用和基于反应的传感等分子设计策略。讨论了主要的光物理途径,包括ICT、PET、ESIPT和AIE,以阐明结构-性能-功能关系。强调了来自碱性阴离子的干扰、溶剂效应和有限的水相容性等挑战,以及指导开发可靠氟化物监测的坚固的杂环探针的未来前景。
{"title":"Fluoride ion detection with heterocyclic chromogenic and fluorogenic probes: Molecular design and response pathways","authors":"Duraisamy Udhayakumari ,&nbsp;A. Nanthakumar","doi":"10.1016/j.jfluchem.2026.110543","DOIUrl":"10.1016/j.jfluchem.2026.110543","url":null,"abstract":"<div><div>Fluoride ions exhibit a dual nature as essential trace elements and potential toxicants, demanding sensitive and selective detection methods. Chromogenic and fluorogenic chemosensors have emerged as effective tools due to their simplicity, rapid response, and visual readout. In this context, heterocycle-based molecular probes have attracted increasing attention for fluoride sensing owing to their tunable electronic properties, strong anion–receptor interactions, and versatile signal transduction mechanisms. This review summarizes recent advances in heterocyclic chromogenic and fluorogenic probes for toxic fluoride ion detection, with emphasis on molecular design strategies such as hydrogen bonding, deprotonation, Lewis acid–base interactions, and reaction-based sensing. Key photophysical pathways, including ICT, PET, ESIPT, and AIE, are discussed to elucidate structure–property–function relationships. Challenges such as interference from basic anions, solvent effects, and limited aqueous compatibility are highlighted, along with future perspectives to guide the development of robust heterocycle-based probes for reliable fluoride monitoring.</div></div>","PeriodicalId":357,"journal":{"name":"Journal of Fluorine Chemistry","volume":"290 ","pages":"Article 110543"},"PeriodicalIF":1.9,"publicationDate":"2026-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147397906","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
Tuning of Mg–Al LDH-derived nanocomposites via calcination and metal ratio control: Implications for fluoride removal efficiency 通过煅烧和金属比例控制调谐Mg-Al ldh衍生纳米复合材料:对除氟效率的影响
IF 1.9 4区 化学 Q3 CHEMISTRY, INORGANIC & NUCLEAR Pub Date : 2026-02-01 Epub Date: 2026-01-13 DOI: 10.1016/j.jfluchem.2026.110539
Bholanath Panda, Supriya Mandal, Debasish Mondal, Julekha Khatun, Rajesh Singh, Debasis Dhak
Groundwater fluoride contamination is a global issue that endangers drinking water and human health. Long term human developed and environmental management both greatly depends on the defluorination of aqueous solution. The most defluorination method is adsorption, which is both economical and effective. For the defluorination of water in drinking water we have synthesized different magnesium aluminium oxide/layered double hydroxide nanocomposite material (Mg2+: Al3+ = 1:1, 1:2, and 2:1 abbreviated as MAO11–400, MAO12–500, and MAO21–600 heat treated at 400 °C, 500 °C and 600 °C respectively) by one pot solution combustion method using triethanolamine as a fuel and stabilizer. The thermal stability of the sample was checked by TGA analysis. The crystalline nature of the sample was characterised by XRD study. The functional group of the sample was identified by the FTIR study. The adsorption isotherm and pore volume of the samples were identified by the BET isotherm and BJH method respectively. Different magnesium aluminium oxide/layered double hydroxide nanocomposite materials were investigated by batch experiments. Based on the results, the Freundlich isothermal model could accurately describe the samples fluoride absorption behaviour, and the maximum adsorption capacity according to the Langmuir model was estimated as 133.51 mg/g for the sample MAO12–400. The adsorption kinetics data indicates that it follows pseudo-second-order model, and adsorption equilibrium reached within just 20 min of the sample MAO12–400. The samples have fluoride ion selectivity especially when various ions were present in real water, and work over wide pH range. XPS outcomes indicated that ion exchange between hydroxide ions of the sample and fluoride ions of the sample were mainly responsible for fluoride adsorption. Based on the kinetics data it may be concluded that all the adsorbents are quick and effective adsorbent, and may be used for fluoride mitigation from drinking water.
地下水氟化物污染是危害饮用水和人类健康的全球性问题。长期的人类发展和环境管理都在很大程度上依赖于水溶液的除氟。吸附法除氟效果好,经济有效。本文以三乙醇胺为燃料和稳定剂,采用一锅溶液燃烧法合成了不同氧化镁铝/层状双氢氧化物纳米复合材料(Mg2+: Al3+ = 1:1、1:2和2:1,分别简称为MAO11-400、MAO12-500和MAO21-600,分别经400℃、500℃和600℃热处理)。通过热重分析对样品的热稳定性进行了检验。用XRD对样品的晶体性质进行了表征。通过FTIR研究确定了样品的官能团。采用BET等温线和BJH法分别测定了样品的吸附等温线和孔隙体积。通过批量实验研究了不同的镁铝氧化物/层状双氢氧化物纳米复合材料。结果表明,Freundlich等温模型能较准确地描述样品的氟吸附行为,Langmuir模型估计样品MAO12-400的最大吸附量为133.51 mg/g。吸附动力学数据表明,该吸附过程符合准二阶模型,仅在20 min内达到吸附平衡。样品具有氟离子选择性,特别是当各种离子存在于实际水中时,并且在很宽的pH范围内工作。XPS结果表明,氟化物的吸附主要是由氢氧根离子与氟离子之间的离子交换引起的。根据动力学数据可以得出结论,所有吸附剂都是快速有效的吸附剂,可以用于饮用水中的氟减排。
{"title":"Tuning of Mg–Al LDH-derived nanocomposites via calcination and metal ratio control: Implications for fluoride removal efficiency","authors":"Bholanath Panda,&nbsp;Supriya Mandal,&nbsp;Debasish Mondal,&nbsp;Julekha Khatun,&nbsp;Rajesh Singh,&nbsp;Debasis Dhak","doi":"10.1016/j.jfluchem.2026.110539","DOIUrl":"10.1016/j.jfluchem.2026.110539","url":null,"abstract":"<div><div>Groundwater fluoride contamination is a global issue that endangers drinking water and human health. Long term human developed and environmental management both greatly depends on the defluorination of aqueous solution. The most defluorination method is adsorption, which is both economical and effective. For the defluorination of water in drinking water we have synthesized different magnesium aluminium oxide/layered double hydroxide nanocomposite material (Mg<sup>2+</sup>: Al<sup>3+</sup> = 1:1, 1:2, and 2:1 abbreviated as MAO11–400, MAO12–500, and MAO21–600 heat treated at 400 °C, 500 °C and 600 °C respectively) by one pot solution combustion method using triethanolamine as a fuel and stabilizer. The thermal stability of the sample was checked by TGA analysis. The crystalline nature of the sample was characterised by XRD study. The functional group of the sample was identified by the FTIR study. The adsorption isotherm and pore volume of the samples were identified by the BET isotherm and BJH method respectively. Different magnesium aluminium oxide/layered double hydroxide nanocomposite materials were investigated by batch experiments. Based on the results, the Freundlich isothermal model could accurately describe the samples fluoride absorption behaviour, and the maximum adsorption capacity according to the Langmuir model was estimated as 133.51 mg/g for the sample MAO12–400. The adsorption kinetics data indicates that it follows pseudo-second-order model, and adsorption equilibrium reached within just 20 min of the sample MAO12–400. The samples have fluoride ion selectivity especially when various ions were present in real water, and work over wide pH range. XPS outcomes indicated that ion exchange between hydroxide ions of the sample and fluoride ions of the sample were mainly responsible for fluoride adsorption. Based on the kinetics data it may be concluded that all the adsorbents are quick and effective adsorbent, and may be used for fluoride mitigation from drinking water.</div></div>","PeriodicalId":357,"journal":{"name":"Journal of Fluorine Chemistry","volume":"290 ","pages":"Article 110539"},"PeriodicalIF":1.9,"publicationDate":"2026-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146074397","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
Synthetic utility of α,α-difluoro-β-lactams as a divergent platform for accessing CF₂-containing β-amino acid derivatives α,α-二氟-β-内酰胺作为获取含CF₂的β-氨基酸衍生物的发散平台的合成效用
IF 1.9 4区 化学 Q3 CHEMISTRY, INORGANIC & NUCLEAR Pub Date : 2026-02-01 Epub Date: 2026-02-24 DOI: 10.1016/j.jfluchem.2026.110546
Atsushi Tarui, Naotaka Yamada, Akimasa Ueda, Yukiko Karuo, Shoki Hoshikawa, Kazuyuki Sato, Kentaro Kawai, Masaaki Omote
We report a divergent synthetic approach to α,α-difluoro-β-amino esters and thioesters based on the nucleophilic ring-opening of α,α-difluoro-β-lactams. The high reactivity of the lactam scaffold arises from the combined effects of significant ring strain and the strong electron-withdrawing character of the CF₂ group without the need for external activating agents. The ring-opening reaction of α,α-difluoro-β-lactams with alcohols in the presence of diisopropylethylamine in 2,2,2-trifluoroethanol afforded the corresponding α,α-difluoro-β-amino esters in good to excellent yields. In contrast, switching the solvent to N,N-dimethyl formamide enabled efficient reactions with thiol nucleophiles, providing access to α,α-difluoro-β-amino thioesters in high yields. This study demonstrates that α,α-difluoro-β-lactams are a versatile platform for synthesizing fluorinated β-amino acid derivatives with potential applications in medicinal chemistry and peptide ligation chemistry.
我们报道了一种基于α,α-二氟-β-内酰胺亲核开环的α,α-二氟-β-氨基酯和硫酯的合成方法。内酰胺支架的高反应性源于显著的环应变和CF₂基团的强吸电子特性的共同作用,而不需要外部活性剂。在2,2,2-三氟乙醇中,在二异丙乙胺存在下,α,α-二氟-β-内酰胺与醇类开环反应,得到相应的α,α-二氟-β-氨基酯,收率高至优异。相反,将溶剂转换为N,N-二甲基甲酰胺可以与巯基亲核试剂进行高效反应,从而高产出α,α-二氟-β-氨基硫酯。本研究表明,α,α-二氟-β-内酰胺是合成含氟β-氨基酸衍生物的通用平台,在药物化学和肽连接化学方面具有潜在的应用前景。
{"title":"Synthetic utility of α,α-difluoro-β-lactams as a divergent platform for accessing CF₂-containing β-amino acid derivatives","authors":"Atsushi Tarui,&nbsp;Naotaka Yamada,&nbsp;Akimasa Ueda,&nbsp;Yukiko Karuo,&nbsp;Shoki Hoshikawa,&nbsp;Kazuyuki Sato,&nbsp;Kentaro Kawai,&nbsp;Masaaki Omote","doi":"10.1016/j.jfluchem.2026.110546","DOIUrl":"10.1016/j.jfluchem.2026.110546","url":null,"abstract":"<div><div>We report a divergent synthetic approach to α,α-difluoro-β-amino esters and thioesters based on the nucleophilic ring-opening of α,α-difluoro-β-lactams. The high reactivity of the lactam scaffold arises from the combined effects of significant ring strain and the strong electron-withdrawing character of the CF₂ group without the need for external activating agents. The ring-opening reaction of α,α-difluoro-β-lactams with alcohols in the presence of diisopropylethylamine in 2,2,2-trifluoroethanol afforded the corresponding α,α-difluoro-β-amino esters in good to excellent yields. In contrast, switching the solvent to <em>N,N</em>-dimethyl formamide enabled efficient reactions with thiol nucleophiles, providing access to α,α-difluoro-β-amino thioesters in high yields. This study demonstrates that α,α-difluoro-β-lactams are a versatile platform for synthesizing fluorinated β-amino acid derivatives with potential applications in medicinal chemistry and peptide ligation chemistry.</div></div>","PeriodicalId":357,"journal":{"name":"Journal of Fluorine Chemistry","volume":"290 ","pages":"Article 110546"},"PeriodicalIF":1.9,"publicationDate":"2026-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147397907","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
Surface degradation and modification of traditional Chinese paintings exposed to fluorinated chemical agents 氟化化学试剂对中国画表面降解和改性的影响
IF 1.9 4区 化学 Q3 CHEMISTRY, INORGANIC & NUCLEAR Pub Date : 2026-02-01 Epub Date: 2026-01-11 DOI: 10.1016/j.jfluchem.2026.110538
Muying Ge , Hongru Zhou , Kai Wang , Hideki Yoshioka , Haiting Wu , Ziyi Lu , Yafei Zhou , Biao Zhou
Fires in historic buildings frequently cause severe cultural heritage losses. Fluorinated fire agent can be effectively applied to protect historic buildings. However, fluorinated fire agents may exert certain impacts on the surfaces of artifacts near the fire site. It is essential to elucidate the mechanisms by which fluorinated fire agents affect the surfaces of the interior artworks. This study systematically investigates the surface corrosive and modification effects of five fluorinated fire agents (C3H2BrF3, C9F18, C5H3OF9, C6F12O, and C3H2ClF3) on the surface of a selected Chinese painting. Colorimetric analysis, SEM, XRD, and FTIR-ATR were used to assess changes in color, microstructural morphology, crystalline composition, and molecular structure, separately. It is found that C3H2BrF3 caused severe corrosion to the fiber structure and significantly altered the chemical composition. C5H3OF9 induced wrinkling of fibers and disruptions to molecular bonding structures of the painting surface. C6F12O caused alterations in the crystalline phases and slight structural damage on the surface. C3H2ClF3 and C9F18 exhibited comparatively milder effects on surfaces. The findings demonstrate that fluorinated fire agents inflict varying degrees of corrosion and chemical modification on the selected painting surface. It elucidates the surface modification mechanisms induced by fluorinated fire extinguishing agents and contributes to the conservation of cultural heritage.
历史建筑火灾经常造成严重的文化遗产损失。氟化灭火剂可以有效地应用于历史建筑的保护。但是,含氟灭火剂会对火灾现场附近的文物表面产生一定的影响。阐明氟化火剂对室内艺术品表面的影响机制是十分必要的。本研究系统考察了五种氟化火剂(C3H2BrF3、C9F18、C5H3OF9、c6f120、C3H2ClF3)对一幅中国画表面的腐蚀和改性效果。用比色分析、SEM、XRD和FTIR-ATR分别评估颜色、微观结构形态、晶体组成和分子结构的变化。发现C3H2BrF3对纤维结构造成了严重的腐蚀,并显著改变了纤维的化学成分。C5H3OF9引起纤维起皱,破坏了涂层表面的分子键结构。c6f120o引起了晶相的改变和表面轻微的结构损伤。C3H2ClF3和C9F18对表面的影响相对温和。研究结果表明,氟化火剂对选定的油漆表面造成不同程度的腐蚀和化学改性。阐明了含氟灭火剂引起的表面改性机理,有助于文物保护。
{"title":"Surface degradation and modification of traditional Chinese paintings exposed to fluorinated chemical agents","authors":"Muying Ge ,&nbsp;Hongru Zhou ,&nbsp;Kai Wang ,&nbsp;Hideki Yoshioka ,&nbsp;Haiting Wu ,&nbsp;Ziyi Lu ,&nbsp;Yafei Zhou ,&nbsp;Biao Zhou","doi":"10.1016/j.jfluchem.2026.110538","DOIUrl":"10.1016/j.jfluchem.2026.110538","url":null,"abstract":"<div><div>Fires in historic buildings frequently cause severe cultural heritage losses. Fluorinated fire agent can be effectively applied to protect historic buildings. However, fluorinated fire agents may exert certain impacts on the surfaces of artifacts near the fire site. It is essential to elucidate the mechanisms by which fluorinated fire agents affect the surfaces of the interior artworks. This study systematically investigates the surface corrosive and modification effects of five fluorinated fire agents (C<sub>3</sub>H<sub>2</sub>BrF<sub>3</sub>, C<sub>9</sub>F<sub>18</sub>, C<sub>5</sub>H<sub>3</sub>OF<sub>9</sub>, C<sub>6</sub>F<sub>12</sub>O, and C<sub>3</sub>H<sub>2</sub>ClF<sub>3</sub>) on the surface of a selected Chinese painting. Colorimetric analysis, SEM, XRD, and FTIR-ATR were used to assess changes in color, microstructural morphology, crystalline composition, and molecular structure, separately. It is found that C<sub>3</sub>H<sub>2</sub>BrF<sub>3</sub> caused severe corrosion to the fiber structure and significantly altered the chemical composition. C<sub>5</sub>H<sub>3</sub>OF<sub>9</sub> induced wrinkling of fibers and disruptions to molecular bonding structures of the painting surface. C<sub>6</sub>F<sub>12</sub>O caused alterations in the crystalline phases and slight structural damage on the surface. C<sub>3</sub>H<sub>2</sub>ClF<sub>3</sub> and C<sub>9</sub>F<sub>18</sub> exhibited comparatively milder effects on surfaces. The findings demonstrate that fluorinated fire agents inflict varying degrees of corrosion and chemical modification on the selected painting surface. It elucidates the surface modification mechanisms induced by fluorinated fire extinguishing agents and contributes to the conservation of cultural heritage.</div></div>","PeriodicalId":357,"journal":{"name":"Journal of Fluorine Chemistry","volume":"290 ","pages":"Article 110538"},"PeriodicalIF":1.9,"publicationDate":"2026-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145975211","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
Fluorine in Pharmaceuticals and Synthetic Strategies for Fluorine-Containing Molecules in Anticancer Drug Discovery: A Review 药物中的氟及抗癌药物中含氟分子的合成策略综述
IF 1.9 4区 化学 Q3 CHEMISTRY, INORGANIC & NUCLEAR Pub Date : 2026-02-01 Epub Date: 2026-01-07 DOI: 10.1016/j.jfluchem.2026.110527
Vivek Kumar , Meenu , M. Shaquiquzzaman, M. Mumtaz Alam, Mymoona Akhter, Darakhshan Parveen, Mohammad Kaleem, Shyama Charan, Md. Khalid Saifullah, Sharba Tasneem
Fluorine has emerged as a key element in modern drug discovery. It influences the pharmacokinetic and pharmacodynamic properties of the drug substance, affecting the overall pharmacological profile. Its impact is reflected in the growing number of FDA-approved fluorine-containing drugs across diverse disease areas, particularly in oncology. This review provides a comprehensive account of FDA-approved fluorine-containing drugs, highlighting their clinical applications in various diseases. Special emphasis is placed on fluorine-containing anticancer agents, tracing their synthetic evolution from 1955 to 2024 as reported in the literature. By integrating structural, mechanistic, and synthetic perspectives, this work emphasises the critical role of fluorination in shaping drug design strategies and therapeutic innovation. Furthermore, a target-oriented classification and SAR evaluation of fluorinated drugs are presented to elucidate how specific fluorine substitutions shape potency, selectivity, and overall therapeutic performance. To support these analyses, a comparative SAR table is included, detailing fluorine positions, their impact on potency and pharmacokinetics, and the mechanistic rationale underlying these effects. The insights presented herein aim to guide future medicinal chemistry efforts toward the rational development of next-generation fluorinated drugs with enhanced efficacy and safety profiles.
氟已成为现代药物发现的关键因素。它影响原料药的药代动力学和药效学性质,影响整体药理学概况。它的影响反映在越来越多的fda批准的含氟药物在不同的疾病领域,特别是在肿瘤学领域。本综述全面介绍了fda批准的含氟药物,重点介绍了它们在各种疾病中的临床应用。特别强调含氟抗癌剂,追踪其合成演变从1955年到2024年的文献报道。通过整合结构、机制和合成的观点,这项工作强调了氟化在塑造药物设计策略和治疗创新中的关键作用。此外,针对氟化药物的目标导向分类和SAR评价提出了阐明特异性氟取代如何影响效力,选择性和整体治疗性能。为了支持这些分析,包括一个比较SAR表,详细说明了氟的位置,它们对效价和药代动力学的影响,以及这些影响的机制基础。本文提出的见解旨在指导未来的药物化学工作,以合理开发下一代氟化药物,提高疗效和安全性。
{"title":"Fluorine in Pharmaceuticals and Synthetic Strategies for Fluorine-Containing Molecules in Anticancer Drug Discovery: A Review","authors":"Vivek Kumar ,&nbsp;Meenu ,&nbsp;M. Shaquiquzzaman,&nbsp;M. Mumtaz Alam,&nbsp;Mymoona Akhter,&nbsp;Darakhshan Parveen,&nbsp;Mohammad Kaleem,&nbsp;Shyama Charan,&nbsp;Md. Khalid Saifullah,&nbsp;Sharba Tasneem","doi":"10.1016/j.jfluchem.2026.110527","DOIUrl":"10.1016/j.jfluchem.2026.110527","url":null,"abstract":"<div><div>Fluorine has emerged as a key element in modern drug discovery. It influences the pharmacokinetic and pharmacodynamic properties of the drug substance, affecting the overall pharmacological profile. Its impact is reflected in the growing number of FDA-approved fluorine-containing drugs across diverse disease areas, particularly in oncology. This review provides a comprehensive account of FDA-approved fluorine-containing drugs, highlighting their clinical applications in various diseases. Special emphasis is placed on fluorine-containing anticancer agents, tracing their synthetic evolution from 1955 to 2024 as reported in the literature. By integrating structural, mechanistic, and synthetic perspectives, this work emphasises the critical role of fluorination in shaping drug design strategies and therapeutic innovation. Furthermore, a target-oriented classification and SAR evaluation of fluorinated drugs are presented to elucidate how specific fluorine substitutions shape potency, selectivity, and overall therapeutic performance. To support these analyses, a comparative SAR table is included, detailing fluorine positions, their impact on potency and pharmacokinetics, and the mechanistic rationale underlying these effects. The insights presented herein aim to guide future medicinal chemistry efforts toward the rational development of next-generation fluorinated drugs with enhanced efficacy and safety profiles.</div></div>","PeriodicalId":357,"journal":{"name":"Journal of Fluorine Chemistry","volume":"290 ","pages":"Article 110527"},"PeriodicalIF":1.9,"publicationDate":"2026-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145908881","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
Organophotocatalytic defluorinative γ-substitution towards monofluoroalkenes 有机光催化对单氟烯烃的脱氟γ-取代
IF 1.9 4区 化学 Q3 CHEMISTRY, INORGANIC & NUCLEAR Pub Date : 2026-02-01 Epub Date: 2026-01-23 DOI: 10.1016/j.jfluchem.2026.110540
Taylor Semeniuk, Dennis D. Toporkov, Tyler de Goede, Jean-Denys Hamel
An organophotocatalytic process for the defluorinative γ-substitution of allylic difluorides with N-alkylanilines, 2-oxoacids and N-protected α-amino acids was devised, which was previously reported using metal-based photoredox catalysts. In several instances, the organophotocatalytic reaction conditions produced yields comparable to or better than the metal-based catalytic processes. Additionally, our new method has expanded the functional group tolerance to include N-acetyl α-amino acids. Fine-tuning each set of reaction conditions to implement organophotocatalysis provided a greener and more affordable avenue towards the synthesis of monofluoroalkenes.
设计了一种用n -烷基苯胺、2-氧酸和n -保护α-氨基酸取代烯丙基二氟化物的有机光催化工艺,该工艺先前使用金属基光氧化还原催化剂进行了报道。在一些情况下,有机光催化反应条件产生的产率与金属基催化过程相当或更好。此外,我们的新方法扩大了功能基耐受性,包括n -乙酰基α-氨基酸。对每组反应条件进行微调以实现有机光催化,为合成单氟烯烃提供了一条更环保、更经济的途径。
{"title":"Organophotocatalytic defluorinative γ-substitution towards monofluoroalkenes","authors":"Taylor Semeniuk,&nbsp;Dennis D. Toporkov,&nbsp;Tyler de Goede,&nbsp;Jean-Denys Hamel","doi":"10.1016/j.jfluchem.2026.110540","DOIUrl":"10.1016/j.jfluchem.2026.110540","url":null,"abstract":"<div><div>An organophotocatalytic process for the defluorinative γ-substitution of allylic difluorides with <em>N</em>-alkylanilines, 2-oxoacids and <em>N</em>-protected α-amino acids was devised, which was previously reported using metal-based photoredox catalysts. In several instances, the organophotocatalytic reaction conditions produced yields comparable to or better than the metal-based catalytic processes. Additionally, our new method has expanded the functional group tolerance to include <em>N</em>-acetyl α-amino acids. Fine-tuning each set of reaction conditions to implement organophotocatalysis provided a greener and more affordable avenue towards the synthesis of monofluoroalkenes.</div></div>","PeriodicalId":357,"journal":{"name":"Journal of Fluorine Chemistry","volume":"290 ","pages":"Article 110540"},"PeriodicalIF":1.9,"publicationDate":"2026-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146024191","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
期刊
Journal of Fluorine Chemistry
全部 Acc. Chem. Res. ACS Applied Bio Materials ACS Appl. Electron. Mater. ACS Appl. Energy Mater. ACS Appl. Mater. Interfaces ACS Appl. Nano Mater. ACS Appl. Polym. Mater. ACS BIOMATER-SCI ENG ACS Catal. ACS Cent. Sci. ACS Chem. Biol. ACS Chemical Health & Safety ACS Chem. Neurosci. ACS Comb. Sci. ACS Earth Space Chem. ACS Energy Lett. ACS Infect. Dis. ACS Macro Lett. ACS Mater. Lett. ACS Med. Chem. Lett. ACS Nano ACS Omega ACS Photonics ACS Sens. ACS Sustainable Chem. Eng. ACS Synth. Biol. Anal. Chem. BIOCHEMISTRY-US Bioconjugate Chem. BIOMACROMOLECULES Chem. Res. Toxicol. Chem. Rev. Chem. Mater. CRYST GROWTH DES ENERG FUEL Environ. Sci. Technol. Environ. Sci. Technol. Lett. Eur. J. Inorg. Chem. IND ENG CHEM RES Inorg. Chem. J. Agric. Food. Chem. J. Chem. Eng. Data J. Chem. Educ. J. Chem. Inf. Model. J. Chem. Theory Comput. J. Med. Chem. J. Nat. Prod. J PROTEOME RES J. Am. Chem. Soc. LANGMUIR MACROMOLECULES Mol. Pharmaceutics Nano Lett. Org. Lett. ORG PROCESS RES DEV ORGANOMETALLICS J. Org. Chem. J. Phys. Chem. J. Phys. Chem. A J. Phys. Chem. B J. Phys. Chem. C J. Phys. Chem. Lett. Analyst Anal. Methods Biomater. Sci. Catal. Sci. Technol. Chem. Commun. Chem. Soc. Rev. CHEM EDUC RES PRACT CRYSTENGCOMM Dalton Trans. Energy Environ. Sci. ENVIRON SCI-NANO ENVIRON SCI-PROC IMP ENVIRON SCI-WAT RES Faraday Discuss. Food Funct. Green Chem. Inorg. Chem. Front. Integr. Biol. J. Anal. At. Spectrom. J. Mater. Chem. A J. Mater. Chem. B J. Mater. Chem. C Lab Chip Mater. Chem. Front. Mater. Horiz. MEDCHEMCOMM Metallomics Mol. Biosyst. Mol. Syst. Des. Eng. Nanoscale Nanoscale Horiz. Nat. Prod. Rep. New J. Chem. Org. Biomol. Chem. Org. Chem. Front. PHOTOCH PHOTOBIO SCI PCCP Polym. Chem.
﹀
mjeditor
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
0
微信
客服QQ
Book学术公众号 扫码关注我们
反馈
×
意见反馈
请填写您的意见或建议
请填写您的手机或邮箱
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
现在去查看 取消
×
提示
确定
Book学术官方微信
Book学术官方微信
Book学术文献互助
Book学术文献互助群
群 号:604180095
Book学术
文献互助 智能选刊 最新文献 互助须知 联系我们:info@booksci.cn
Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。
Copyright © 2023 Book学术 All rights reserved.
ghs 京公网安备 11010802042870号 京ICP备2023020795号-1