A highly efficient method for the synthesis of aryl sulfonyl fluorides was developed from aryl sulfonyl chlorides using SO2F2 as fluoride source in up to 98% isolated yield under mild conditions. Gram scale experiments were also conducted, revealing the good practicality of this new protocol.
一种高效合成芳基磺酰氟的方法是从芳基磺酰氯中开发的,使用 SO 2 F 2作为氟化物源,在温和条件下分离收率高达 98%。还进行了克级实验,揭示了这种新协议的良好实用性。
Electrochemical Synthesis of Sulfonyl Fluorides with Triethylamine Hydrofluoride
作者:Lei Zhang、Xu Cheng、Qi‐Lin Zhou
DOI:10.1002/cjoc.202200112
日期:2022.7.15
manufacture diverse fluoro chemicals. The Et3N-3HF complex is a liquid HF with improve safety. In this work, we report electrochemical synthesis of a series of sulfonyl fluoride with Et3N-3HF as fluoride source. The sulfinic salt is a smell-less, non-volatile, and air-stable sulfur source in this reaction. With the combination of Et3N-3HF and aryl/alkyl sulfinic salt, the sulfonyl fluorides are achieved without
氢氟酸是工业上首选的氟化物来源,广泛应用于制造各种含氟化学品。Et 3 N-3HF 复合物是一种提高安全性的液体 HF。在这项工作中,我们报道了以 Et 3 N-3HF 作为氟化物源的一系列磺酰氟的电化学合成。在该反应中,亚磺酸盐是一种无味、不挥发且对空气稳定的硫源。通过 Et 3 N-3HF 和芳基/烷基亚磺酸盐的组合,无需使用外部氧化剂即可获得磺酰氟。此外,我们在涉及 Pd 催化的 C-S 交叉偶联和 S-F 键形成的串联反应中展示了进一步的优势。包括氨基酸、杂环、卤化物在内的多种官能团具有良好的耐受性。
Selective Fluorosulfonylation of Thianthrenium Salts Enabled by Electrochemistry
作者:Xianqiang Kong、Yiyi Chen、Qianwen Liu、WenJie Wang、Shuangquan Zhang、Qian Zhang、Xiaohui Chen、Yuan-Qing Xu、Zhong-Yan Cao
DOI:10.1021/acs.orglett.2c03956
日期:2023.2.3
A practical electrochemically driven method for fluorosulfonylation of both aryl and alkyl thianthrenium salts has been disclosed. The strategy does not need external redox reagents or metal catalysts. In combination with C–Hthianthrenation of aromatics, this method provides a new tool for the site-selective fluorosulfonylation of drugs.
Synthesis of 18F‐labeled Aryl Trifluoromethyl Sulfones, ‐Sulfoxides, and ‐Sulfides for Positron Emission Tomography
作者:Lukas Veth、Albert D. Windhorst、Danielle J. Vugts
DOI:10.1002/anie.202404278
日期:——
The mild and high-yielding synthesis of 18F-labeled aryl trifluoromethyl sulfones, -sulfoxides, and -sulfides using [18F]Ruppert-Prakash reagent is described. The application to the radiolabeling of different bioactive compounds using >1 GBq of 18F-labeling reagent is demonstrated. This work expands the radiochemical space of [18F]CF3-containing structural motifs for the use in positron emission tomography