首页 > 最新文献

Journal of Fluorine Chemistry最新文献

英文 中文
6-Polyfluoroalkyl-1-arylhexane-1,3,5-triones: Syntheses, ring-chain tautomerism and dehydrative cyclization to 6-polyfluoroalkyl-1-arylpyran-4H-ones 6-多氟烷基-1-芳基己烷-1,3,5-三酮:合成、环链同分异构和脱水环化为 6-多氟烷基-1-芳基吡喃-4H-酮
IF 1.7 4区 化学 Q3 CHEMISTRY, INORGANIC & NUCLEAR Pub Date : 2024-11-01 DOI: 10.1016/j.jfluchem.2024.110368
Ivan A. Kochnev, Lyudmila S. Zavyalova, Azaliia I. Avkhadieva, Nikolay A. Tverdokhlebov, Alexey Y. Barkov
In this work, we present a synthetic protocol for the synthesis of non-symmetrical fluoroalkylated triketones. The synthesis is based on the reaction of benzoyl acetones with esters in the presence of excess lithium hydride. The tautomeric equilibrium of triketones in CDCl3 and DMSO‑d6 solutions was studied. The synthetic application of 1,3,5-triketones has been demonstrated. A method has been developed for the efficient synthesis of 2-aryl-6-(polyfluoroalkyl)-4H-pyran-4-ones by dehydrative cyclization.
在这项工作中,我们提出了一种非对称氟烷基化三酮的合成方案。该合成基于苯甲酰基丙酮与酯在过量氢化锂存在下的反应。研究了三酮在 CDCl3 和 DMSO-d6 溶液中的同分异构平衡。证明了 1,3,5-三酮的合成应用。开发了一种通过脱水环化高效合成 2-芳基-6-(多氟烷基)-4H-吡喃-4-酮的方法。
{"title":"6-Polyfluoroalkyl-1-arylhexane-1,3,5-triones: Syntheses, ring-chain tautomerism and dehydrative cyclization to 6-polyfluoroalkyl-1-arylpyran-4H-ones","authors":"Ivan A. Kochnev,&nbsp;Lyudmila S. Zavyalova,&nbsp;Azaliia I. Avkhadieva,&nbsp;Nikolay A. Tverdokhlebov,&nbsp;Alexey Y. Barkov","doi":"10.1016/j.jfluchem.2024.110368","DOIUrl":"10.1016/j.jfluchem.2024.110368","url":null,"abstract":"<div><div>In this work, we present a synthetic protocol for the synthesis of non-symmetrical fluoroalkylated triketones. The synthesis is based on the reaction of benzoyl acetones with esters in the presence of excess lithium hydride. The tautomeric equilibrium of triketones in CDCl<sub>3</sub> and DMSO‑<em>d</em><sub>6</sub> solutions was studied. The synthetic application of 1,3,5-triketones has been demonstrated. A method has been developed for the efficient synthesis of 2-aryl-6-(polyfluoroalkyl)-4<em>H</em>-pyran-4-ones by dehydrative cyclization.</div></div>","PeriodicalId":357,"journal":{"name":"Journal of Fluorine Chemistry","volume":"280 ","pages":"Article 110368"},"PeriodicalIF":1.7,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142660305","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
Controlled nucleophilic aromatic substitution of hexafluorobenzene using a flow microreactor 利用流动微反应器控制六氟苯的亲核芳香取代反应
IF 1.7 4区 化学 Q3 CHEMISTRY, INORGANIC & NUCLEAR Pub Date : 2024-11-01 DOI: 10.1016/j.jfluchem.2024.110366
Aya Takano, Fuji Saito, Hiroyuki Murata, Tsuyuka Sugiishi, Hideki Amii
Nucleophilic aromatic substitution (SNAr) contributes to creating a variety of useful materials. It is well-known that selective SNAr reactions of perfluorinated aromatics such as hexafluorobenzene with nucleophiles are difficult to achieve using conventional macro batch systems due to the contamination of the di-substituted products. To take advantage of flow microreactor system, we succeeded in the controlled SNAr reactions of hexafluorobenzene with organolithiums employing continuous flow reactors.
亲核芳烃置换(SNAr)有助于创造各种有用的材料。众所周知,全氟芳烃(如六氟苯)与亲核剂的选择性 SNAr 反应由于二取代产物的污染而很难在传统的宏批处理系统中实现。为了利用流动微反应器系统的优势,我们采用连续流动反应器成功地控制了六氟苯与有机锂的 SNAr 反应。
{"title":"Controlled nucleophilic aromatic substitution of hexafluorobenzene using a flow microreactor","authors":"Aya Takano,&nbsp;Fuji Saito,&nbsp;Hiroyuki Murata,&nbsp;Tsuyuka Sugiishi,&nbsp;Hideki Amii","doi":"10.1016/j.jfluchem.2024.110366","DOIUrl":"10.1016/j.jfluchem.2024.110366","url":null,"abstract":"<div><div>Nucleophilic aromatic substitution (S<sub>N</sub>Ar) contributes to creating a variety of useful materials. It is well-known that selective S<sub>N</sub>Ar reactions of perfluorinated aromatics such as hexafluorobenzene with nucleophiles are difficult to achieve using conventional macro batch systems due to the contamination of the di-substituted products. To take advantage of flow microreactor system, we succeeded in the controlled S<sub>N</sub>Ar reactions of hexafluorobenzene with organolithiums employing continuous flow reactors.</div></div>","PeriodicalId":357,"journal":{"name":"Journal of Fluorine Chemistry","volume":"280 ","pages":"Article 110366"},"PeriodicalIF":1.7,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142554884","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}
引用次数: 0
Corrosion of iron in liquid uranium hexafluoride at 80 °C. Part I: Normal and abnormal experimental kinetics 铁在 80 °C 的液态六氟化铀中的腐蚀。第一部分:正常和异常实验动力学
IF 1.7 4区 化学 Q3 CHEMISTRY, INORGANIC & NUCLEAR Pub Date : 2024-11-01 DOI: 10.1016/j.jfluchem.2024.110370
Mickaël Achour , Sylvie Chatain , Laure Martinelli , Fréderic Miserque , Laurent Jouffret , Marc Dubois , Pierre Bonnet , Ania Selmi , Lionel Mazellier , Bertrand Morel , Sylvie Delpech
The results reported here are the first on pure iron corrosion in liquid UF6 at 80 °C. Two kinetic behaviours have been observed: one led to micrometric scales (from micron to hundreds of microns after several months) and the other one to hundreds of nanometers for several months. The higher corrosion kinetics resulted in the presence of impurities such as NOxF complexes formed by interaction between the medium and the reactor material. These NOxF catalysed the corrosion reaction leading to a corrosion mechanism controlled by the cathodic reaction rate. Effect of impurities in UF6 coming from experimental conditions or nature of uranium ore should then be systematically and carefully checked. Whatever the corrosion kinetics and the presence of impurities, the nature of the layer was identical: a duplex fluoride scale composed of an iron rich layer, FeF2, and a uranium rich layer evolving over time from U2F9 to UF5.
本文报告的结果是首次对 80 °C 下液态六氟化铀中的纯铁腐蚀进行研究。观察到两种动力学行为:一种是微米尺度(几个月后从微米到几百微米),另一种是几个月后达到几百纳米。较高的腐蚀动力学产生于杂质的存在,如介质和反应器材料之间相互作用形成的 NOxF 复合物。这些 NOxF 催化了腐蚀反应,形成了一种由阴极反应速率控制的腐蚀机制。因此,应系统、仔细地检查实验条件或铀矿石性质对六氟化铀中杂质的影响。无论腐蚀动力学如何以及是否存在杂质,腐蚀层的性质都是相同的:由富铁层 FeF2 和随时间从 U2F9 演化为 UF5 的富铀层组成的双相氟化物鳞片。
{"title":"Corrosion of iron in liquid uranium hexafluoride at 80 °C. Part I: Normal and abnormal experimental kinetics","authors":"Mickaël Achour ,&nbsp;Sylvie Chatain ,&nbsp;Laure Martinelli ,&nbsp;Fréderic Miserque ,&nbsp;Laurent Jouffret ,&nbsp;Marc Dubois ,&nbsp;Pierre Bonnet ,&nbsp;Ania Selmi ,&nbsp;Lionel Mazellier ,&nbsp;Bertrand Morel ,&nbsp;Sylvie Delpech","doi":"10.1016/j.jfluchem.2024.110370","DOIUrl":"10.1016/j.jfluchem.2024.110370","url":null,"abstract":"<div><div>The results reported here are the first on pure iron corrosion in liquid UF<sub>6</sub> at 80 °C. Two kinetic behaviours have been observed: one led to micrometric scales (from micron to hundreds of microns after several months) and the other one to hundreds of nanometers for several months. The higher corrosion kinetics resulted in the presence of impurities such as NO<sub>x</sub>F complexes formed by interaction between the medium and the reactor material. These NO<sub>x</sub>F catalysed the corrosion reaction leading to a corrosion mechanism controlled by the cathodic reaction rate. Effect of impurities in UF<sub>6</sub> coming from experimental conditions or nature of uranium ore should then be systematically and carefully checked. Whatever the corrosion kinetics and the presence of impurities, the nature of the layer was identical: a duplex fluoride scale composed of an iron rich layer, FeF<sub>2</sub>, and a uranium rich layer evolving over time from U<sub>2</sub>F<sub>9</sub> to UF<sub>5</sub>.</div></div>","PeriodicalId":357,"journal":{"name":"Journal of Fluorine Chemistry","volume":"280 ","pages":"Article 110370"},"PeriodicalIF":1.7,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142660304","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
Oligoacrylates with perfluoroalkyl substituents based on hexafluoropropylene trimer as environment friendly hydrophobic coatings 基于六氟丙烯三聚体的具有全氟烷基取代基的寡聚丙烯酸酯作为环保型疏水性涂料
IF 1.7 4区 化学 Q3 CHEMISTRY, INORGANIC & NUCLEAR Pub Date : 2024-11-01 DOI: 10.1016/j.jfluchem.2024.110369
P.D. Shkinev , M.I. Shagidanova , G.V. Cherkaev , F.V. Drozdov
The most effective classes of polymer water repellents include acrylic polymer with perfluoroalkyl additives. However, due to the prohibition of substances with a long perfluoroalkyl linear chain longer than 6 carbon atoms by the Stockholm Convention on Persistent Organic Pollutants, there is a significant necessity to replace them with approved analogues. This work considered substituted acrylates based on commercially available hexafluoropropylene trimer and their polymerization in a supercritical CO2 medium as the most convenient way and the hydrophobizing ability on various types of surfaces. The contact angles of the coatings obtained based on these oligomers are up to 111 ° on glass and aluminum, and 130 ° on cotton fabric, which is comparable to analogs with linear perfluoroalkyl substituents.
最有效的聚合物防水剂包括含有全氟烷基添加剂的丙烯酸聚合物。然而,由于《关于持久性有机污染物的斯德哥尔摩公约》禁止使用含有超过 6 个碳原子的长全氟烷基线性链的物质,因此亟需用经批准的类似物来替代它们。这项研究考虑了基于市售六氟丙烯三聚体的替代丙烯酸酯及其在超临界二氧化碳介质中聚合的最便捷方法以及在各类表面上的疏水能力。基于这些低聚物获得的涂层在玻璃和铝上的接触角高达 111 °,在棉织物上的接触角高达 130 °,与带有线性全氟烷基取代基的类似物不相上下。
{"title":"Oligoacrylates with perfluoroalkyl substituents based on hexafluoropropylene trimer as environment friendly hydrophobic coatings","authors":"P.D. Shkinev ,&nbsp;M.I. Shagidanova ,&nbsp;G.V. Cherkaev ,&nbsp;F.V. Drozdov","doi":"10.1016/j.jfluchem.2024.110369","DOIUrl":"10.1016/j.jfluchem.2024.110369","url":null,"abstract":"<div><div>The most effective classes of polymer water repellents include acrylic polymer with perfluoroalkyl additives. However, due to the prohibition of substances with a long perfluoroalkyl linear chain longer than 6 carbon atoms by the Stockholm Convention on Persistent Organic Pollutants, there is a significant necessity to replace them with approved analogues. This work considered substituted acrylates based on commercially available hexafluoropropylene trimer and their polymerization in a supercritical CO<sub>2</sub> medium as the most convenient way and the hydrophobizing ability on various types of surfaces. The contact angles of the coatings obtained based on these oligomers are up to 111 ° on glass and aluminum, and 130 ° on cotton fabric, which is comparable to analogs with linear perfluoroalkyl substituents.</div></div>","PeriodicalId":357,"journal":{"name":"Journal of Fluorine Chemistry","volume":"280 ","pages":"Article 110369"},"PeriodicalIF":1.7,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142561249","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
FeCl3⋅6H2O-mediated cyclization of fluorinated 2’-hydroxychalcones in alcohol medium into flavanones with antiviral activity FeCl3⋅6H2O介导的氟化2'-羟基查耳酮在酒精介质中环化成具有抗病毒活性的黄烷酮类化合物
IF 1.7 4区 化学 Q3 CHEMISTRY, INORGANIC & NUCLEAR Pub Date : 2024-11-01 DOI: 10.1016/j.jfluchem.2024.110371
Jiaying Wang , Larisa Politanskaya , Boris Selivanov , Iana Esaulkova , Alexandrina Volobueva , Vladimir Zarubaev
A simple, inexpensive and efficient approach for the synthesis of fluorinated 2-arylchroman-4-ones from corresponding 2′-hydroxychalcones has been realized. The reactions are successfully conducted in presence of FeCl3⋅6H2O in EtOH at 100 °C. It was found that the same transformation takes place in the reaction system FeCl3⋅6H2O/MeOH/100 °C. In contrast, the use of FeCl3⋅6H2O in MeOH at 150 °C leads to the oxidative cyclization of 2′-hydroxychalcones to form 2-arylchromen-4-ones. A some of the obtained fluorinated flavanones were evaluated for their inhibitory activity against influenza A virus A/Puerto Rico/8/34 (H1N1) in the MDCK cell culture. Among the studied heterocycles 6,7-difluoro-2-(4-methoxyphenyl)chroman-4-one exhibited the highest anti-influenza virus activity (IC50 = 11.4 μM, SI = 91).
实现了从相应的 2′-羟基查耳酮合成氟化 2-芳基苯并吡喃-4-酮的简单、廉价和高效的方法。在 100 °C、EtOH 溶液中有 FeCl3⋅6H2O 的条件下,反应得以成功进行。研究发现,在 FeCl3⋅6H2O/MeOH/100 °C 反应体系中也发生了同样的转化。相反,在 150 °C、MeOH 中使用 FeCl3⋅6H2O 会导致 2′-羟基查耳酮氧化环化,生成 2-芳基苯并吡喃-4-酮。在 MDCK 细胞培养中,对获得的一些含氟黄酮对甲型流感病毒 A/Puerto Rico/8/34 (H1N1) 的抑制活性进行了评估。在所研究的杂环中,6,7-二氟-2-(4-甲氧基苯基)色满-4-酮的抗流感病毒活性最高(IC50 = 11.4 μM,SI = 91)。
{"title":"FeCl3⋅6H2O-mediated cyclization of fluorinated 2’-hydroxychalcones in alcohol medium into flavanones with antiviral activity","authors":"Jiaying Wang ,&nbsp;Larisa Politanskaya ,&nbsp;Boris Selivanov ,&nbsp;Iana Esaulkova ,&nbsp;Alexandrina Volobueva ,&nbsp;Vladimir Zarubaev","doi":"10.1016/j.jfluchem.2024.110371","DOIUrl":"10.1016/j.jfluchem.2024.110371","url":null,"abstract":"<div><div>A simple, inexpensive and efficient approach for the synthesis of fluorinated 2-arylchroman-4-ones from corresponding 2′-hydroxychalcones has been realized. The reactions are successfully conducted in presence of FeCl<sub>3</sub>⋅6H<sub>2</sub>O in EtOH at 100 °C. It was found that the same transformation takes place in the reaction system FeCl<sub>3</sub>⋅6H<sub>2</sub>O/MeOH/100 °C. In contrast, the use of FeCl<sub>3</sub>⋅6H<sub>2</sub>O in MeOH at 150 °C leads to the oxidative cyclization of 2′-hydroxychalcones to form 2-arylchromen-4-ones. A some of the obtained fluorinated flavanones were evaluated for their inhibitory activity against influenza A virus A/Puerto Rico/8/34 (H1N1) in the MDCK cell culture. Among the studied heterocycles 6,7-difluoro-2-(4-methoxyphenyl)chroman-4-one exhibited the highest anti-influenza virus activity (IC<sub>50</sub> = 11.4 μM, SI = 91).</div></div>","PeriodicalId":357,"journal":{"name":"Journal of Fluorine Chemistry","volume":"280 ","pages":"Article 110371"},"PeriodicalIF":1.7,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142699340","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
Two F-18 radiochemistry methods to synthesize a promising transient receptor potential canonical 5 (TRPC5) radioligand 用两种 F-18 放射化学方法合成有前景的瞬态受体电位 5 (TRPC5) 放射配体
IF 1.7 4区 化学 Q3 CHEMISTRY, INORGANIC & NUCLEAR Pub Date : 2024-10-22 DOI: 10.1016/j.jfluchem.2024.110367
Yanbo Yu , Sandip B. Jadhav , Zhimin Xing , Hao Jiang , Lin Qiu , Tianyu Huang , Joel S. Perlmutter , Zibo Li , Zhude Tu
TRPC5 is a member of the mammalian transient receptor potential (TRP) channel superfamily and it has been implicated in various physiological and pathological mechanisms of neurological and psychiatric diseases. Fluorine-18 is one of the most widely used radionuclides for PET imaging due to its favorable chemical characteristics and nuclear-physical properties. Herein, we describe two complementary radiosynthetic approaches and preliminary in vivo evaluation for [18F]TZ78141 as a novel and promising fluorine-18 labeled radiotracer for imaging TRPC5. The latter strategy employed a ruthenium-mediated radiofluorination method, facilitating the rapid synthesis of the desired radiotracer with substantial advantages in simplicity and efficiency.
TRPC5 是哺乳动物瞬时受体电位(TRP)通道超家族的成员,它与神经和精神疾病的各种生理和病理机制有关。氟-18 具有良好的化学特性和核物理特性,是 PET 成像最广泛使用的放射性核素之一。在此,我们介绍了两种互补的放射合成方法,并对[18F]TZ78141进行了初步的体内评估,它是一种新型的、有前途的氟-18标记放射性示踪剂,可用于TRPC5成像。后一种策略采用了钌介导的放射性氟化方法,有助于快速合成所需的放射性示踪剂,在简便性和效率方面具有很大的优势。
{"title":"Two F-18 radiochemistry methods to synthesize a promising transient receptor potential canonical 5 (TRPC5) radioligand","authors":"Yanbo Yu ,&nbsp;Sandip B. Jadhav ,&nbsp;Zhimin Xing ,&nbsp;Hao Jiang ,&nbsp;Lin Qiu ,&nbsp;Tianyu Huang ,&nbsp;Joel S. Perlmutter ,&nbsp;Zibo Li ,&nbsp;Zhude Tu","doi":"10.1016/j.jfluchem.2024.110367","DOIUrl":"10.1016/j.jfluchem.2024.110367","url":null,"abstract":"<div><div>TRPC5 is a member of the mammalian transient receptor potential (TRP) channel superfamily and it has been implicated in various physiological and pathological mechanisms of neurological and psychiatric diseases. Fluorine-18 is one of the most widely used radionuclides for PET imaging due to its favorable chemical characteristics and nuclear-physical properties. Herein, we describe two complementary radiosynthetic approaches and preliminary <em>in vivo</em> evaluation for [<sup>18</sup>F]<strong>TZ78141</strong> as a novel and promising fluorine-18 labeled radiotracer for imaging TRPC5. The latter strategy employed a ruthenium-mediated radiofluorination method, facilitating the rapid synthesis of the desired radiotracer with substantial advantages in simplicity and efficiency.</div></div>","PeriodicalId":357,"journal":{"name":"Journal of Fluorine Chemistry","volume":"280 ","pages":"Article 110367"},"PeriodicalIF":1.7,"publicationDate":"2024-10-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142527122","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
The synthesis of N-Trifluoromethyl hydroxylamine from (trifluoromethyl)trimethylsilane 从(三氟甲基)三甲基硅烷合成 N-三氟甲基羟胺
IF 1.7 4区 化学 Q3 CHEMISTRY, INORGANIC & NUCLEAR Pub Date : 2024-10-16 DOI: 10.1016/j.jfluchem.2024.110356
Haixia Song, Qin Wang, Xingjie Ruan, Weilong Hu, Le Liu, Xin-Hua Duan, Mingyou Hu
We have presented a straightforward approach for the synthesis of N-CF3 hydroxylamines, utilizing TMSCF3 for the N-trifluoromethylation of nitrosoarenes with the assistance of CsF. This method demonstrates excellent tolerance towards various functional groups and can be applied to a wide range of substrates, highlighting its versatility and utility in synthetic applications. The nucleophilic N-trifluoromethylation pathway for N-CF3 hydroxylamines provides a practical protocol for the synthesis of promising molecular architectures in the field of medicinal chemistry.
我们提出了一种直接合成 N-CF3 羟基胺的方法,利用 TMSCF3 在 CsF 的辅助下对亚硝基烯烃进行 N-三氟甲基化反应。该方法对各种官能团具有极佳的耐受性,可用于多种底物,突出了其在合成应用中的多功能性和实用性。N-CF3 羟基胺的亲核 N-三氟甲基化途径为药物化学领域合成前景广阔的分子结构提供了一个实用的方案。
{"title":"The synthesis of N-Trifluoromethyl hydroxylamine from (trifluoromethyl)trimethylsilane","authors":"Haixia Song,&nbsp;Qin Wang,&nbsp;Xingjie Ruan,&nbsp;Weilong Hu,&nbsp;Le Liu,&nbsp;Xin-Hua Duan,&nbsp;Mingyou Hu","doi":"10.1016/j.jfluchem.2024.110356","DOIUrl":"10.1016/j.jfluchem.2024.110356","url":null,"abstract":"<div><div>We have presented a straightforward approach for the synthesis of <em>N</em>-CF<sub>3</sub> hydroxylamines, utilizing TMSCF<sub>3</sub> for the <em>N</em>-trifluoromethylation of nitrosoarenes with the assistance of CsF. This method demonstrates excellent tolerance towards various functional groups and can be applied to a wide range of substrates, highlighting its versatility and utility in synthetic applications. The nucleophilic <em>N</em>-trifluoromethylation pathway for <em>N</em>-CF<sub>3</sub> hydroxylamines provides a practical protocol for the synthesis of promising molecular architectures in the field of medicinal chemistry.</div></div>","PeriodicalId":357,"journal":{"name":"Journal of Fluorine Chemistry","volume":"280 ","pages":"Article 110356"},"PeriodicalIF":1.7,"publicationDate":"2024-10-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142527123","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 of 4-fluoroisocoumarins by copper-catalyzed annulation of 2-halobenzoic acids and 2-fluoro-1,3-diketones 铜催化 2-卤苯甲酸和 2-氟-1,3-二酮环化合成 4-氟异香豆素
IF 1.7 4区 化学 Q3 CHEMISTRY, INORGANIC & NUCLEAR Pub Date : 2024-10-09 DOI: 10.1016/j.jfluchem.2024.110355
Haruki Sakagami, Akira Tsubouchi, Akio Saito
Fluorinated heterocycles have been promising in the field of medicinal, agrochemical and materials chemistry due to their unique properties. However, despite the potentially very useful structures of fluorinated isocoumarins, the synthetic method of fluorinated isocoumarins remains a challenging topic. Herein, we describe the synthetic method of fluorinated isocoumarins by tandem coupling-cyclization-deacylation reaction of readily available 2-halobenzoic acids and 2-fluoro-1,3-diketones. This study provides one of the few synthetic methods of fluorinated isocoumarins.
含氟杂环由于其独特的性质,在医药、农用化学品和材料化学领域大有可为。然而,尽管含氟异香豆素具有非常有用的潜在结构,但其合成方法仍然是一个具有挑战性的课题。在此,我们介绍了通过现成的 2-卤代苯甲酸和 2-氟-1,3-二酮的串联偶联-环化-酰化反应合成氟化异香豆素的方法。这项研究提供了为数不多的氟化异香豆素的合成方法之一。
{"title":"Synthesis of 4-fluoroisocoumarins by copper-catalyzed annulation of 2-halobenzoic acids and 2-fluoro-1,3-diketones","authors":"Haruki Sakagami,&nbsp;Akira Tsubouchi,&nbsp;Akio Saito","doi":"10.1016/j.jfluchem.2024.110355","DOIUrl":"10.1016/j.jfluchem.2024.110355","url":null,"abstract":"<div><div>Fluorinated heterocycles have been promising in the field of medicinal, agrochemical and materials chemistry due to their unique properties. However, despite the potentially very useful structures of fluorinated isocoumarins, the synthetic method of fluorinated isocoumarins remains a challenging topic. Herein, we describe the synthetic method of fluorinated isocoumarins by tandem coupling-cyclization-deacylation reaction of readily available 2-halobenzoic acids and 2-fluoro-1,3-diketones. This study provides one of the few synthetic methods of fluorinated isocoumarins.</div></div>","PeriodicalId":357,"journal":{"name":"Journal of Fluorine Chemistry","volume":"280 ","pages":"Article 110355"},"PeriodicalIF":1.7,"publicationDate":"2024-10-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142445557","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
CF3S-N bond formation under mild conditions. Easy access to trifluoromethanesulfenamides with a versatile reagent 在温和条件下形成 CF3S-N 键。利用多功能试剂轻松获得三氟甲磺酰胺
IF 1.7 4区 化学 Q3 CHEMISTRY, INORGANIC & NUCLEAR Pub Date : 2024-10-01 DOI: 10.1016/j.jfluchem.2024.110353
Clément Delobel , Fabien Toulgoat , Thierry Billard
Trifluoromethanesulfenamides (CF3SN-molecules) are interesting products for further applications. In particular, the presence of the CF3SN group can contribute to increase their lipophilicity. The better way to obtain such products is the direct trifluoromethylthiolation of the corresponding amines. Herein, an efficient method under mild conditions (room temperature, iodide catalysis) is described to obtain the expected trifluoromethanesulfenamides in a late-stage functionalization. This method is based on the use of the reagent BB23 (N-tosyl, N-methyltrifluoromethanesulfenamide), demonstrating the high versatility and polyvalence of this reagent in organofluorine chemistry. Some bioactive elaborated compounds were successfully functionalized.
三氟甲磺酰胺(CF3SN-分子)是一种可进一步应用的有趣产品。特别是,CF3SN 基团的存在有助于增加其亲脂性。获得此类产品的更好方法是直接对相应的胺进行三氟甲基硫代反应。本文介绍了一种在温和条件下(室温、碘催化)获得预期三氟甲烷磺酰胺后期官能化产物的有效方法。该方法基于试剂 BB23(N-对甲基苯磺酰基,N-甲基三氟甲磺酰胺)的使用,证明了该试剂在有机氟化学中的高度通用性和多价性。一些具有生物活性的化合物被成功地功能化。
{"title":"CF3S-N bond formation under mild conditions. Easy access to trifluoromethanesulfenamides with a versatile reagent","authors":"Clément Delobel ,&nbsp;Fabien Toulgoat ,&nbsp;Thierry Billard","doi":"10.1016/j.jfluchem.2024.110353","DOIUrl":"10.1016/j.jfluchem.2024.110353","url":null,"abstract":"<div><div>Trifluoromethanesulfenamides (CF<sub>3</sub>SN-molecules) are interesting products for further applications. In particular, the presence of the CF<sub>3</sub>SN group can contribute to increase their lipophilicity. The better way to obtain such products is the direct trifluoromethylthiolation of the corresponding amines. Herein, an efficient method under mild conditions (room temperature, iodide catalysis) is described to obtain the expected trifluoromethanesulfenamides in a late-stage functionalization. This method is based on the use of the reagent <strong>BB23</strong> (<em>N</em>-tosyl, <em>N</em>-methyltrifluoromethanesulfenamide), demonstrating the high versatility and polyvalence of this reagent in organofluorine chemistry. Some bioactive elaborated compounds were successfully functionalized.</div></div>","PeriodicalId":357,"journal":{"name":"Journal of Fluorine Chemistry","volume":"279 ","pages":"Article 110353"},"PeriodicalIF":1.7,"publicationDate":"2024-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142424967","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}
引用次数: 0
The perfluoroalkylthiolation reaction of thiols with perfluoroalkanesulfenic acids 硫醇与全氟烷基亚磺酸的全氟烷基硫代反应
IF 1.7 4区 化学 Q3 CHEMISTRY, INORGANIC & NUCLEAR Pub Date : 2024-10-01 DOI: 10.1016/j.jfluchem.2024.110354
Ye-lin Liu , Xiao-Yu Geng , Min Jiang , Jin-Tao Liu
The perfluoroalkylthiolation reactions of thiols with perfluoroalkanesulfenic acids were achieved without adding any additives, giving a series of unsymmetric disulfides in good to excellent yields. After simple removal of solvent from reaction system under reduced pressure, most products could be obtained with high purity. The reaction tolerates both aryl and alkyl thiols and has advantages such as easy-to-handle, additive-free and simple separation procedure.
硫醇与全氟烷基亚磺酸的全氟烷基硫代反应无需添加任何添加剂即可实现,并以良好至极佳的收率得到一系列不对称二硫化物。在减压下从反应体系中简单移除溶剂后,大多数产物都能以高纯度获得。该反应对芳基和烷基硫醇均有耐受性,并具有易于操作、无添加剂和分离过程简单等优点。
{"title":"The perfluoroalkylthiolation reaction of thiols with perfluoroalkanesulfenic acids","authors":"Ye-lin Liu ,&nbsp;Xiao-Yu Geng ,&nbsp;Min Jiang ,&nbsp;Jin-Tao Liu","doi":"10.1016/j.jfluchem.2024.110354","DOIUrl":"10.1016/j.jfluchem.2024.110354","url":null,"abstract":"<div><div>The perfluoroalkylthiolation reactions of thiols with perfluoroalkanesulfenic acids were achieved without adding any additives, giving a series of unsymmetric disulfides in good to excellent yields. After simple removal of solvent from reaction system under reduced pressure, most products could be obtained with high purity. The reaction tolerates both aryl and alkyl thiols and has advantages such as easy-to-handle, additive-free and simple separation procedure.</div></div>","PeriodicalId":357,"journal":{"name":"Journal of Fluorine Chemistry","volume":"279 ","pages":"Article 110354"},"PeriodicalIF":1.7,"publicationDate":"2024-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142424968","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.
×
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学术文献互助
Book学术文献互助群
群 号:481959085
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