<i>Ex Situ</i> Generation of Sulfuryl Fluoride for the Synthesis of Aryl Fluorosulfates
作者:Cedrick Veryser、Joachim Demaerel、Vidmantas Bieliu̅nas、Philippe Gilles、Wim M. De Borggraeve
DOI:10.1021/acs.orglett.7b02522
日期:2017.10.6
A convenient transformation of phenols into the corresponding aryl fluorosulfates is presented: the first protocol to completely circumvent direct handling of gaseous sulfuryl fluoride (SO2F2). The proposed method employs 1,1′-sulfonyldiimidazole as a precursor to generate near-stoichiometric amounts of SO2F2 gas using a two-chamber reactor. With NMR studies, it was shown that this ex situ gas evolution
提出了将苯酚方便地转化为相应的氟代芳基硫酸盐的方法:完全规避直接处理气态硫酰氟(SO 2 F 2)的第一种方法。所提出的方法使用1,1'-磺酰亚胺基咪唑作为前体,通过两腔反应器生成接近化学计量的SO 2 F 2气体。通过NMR研究表明,这种非原位气体的释放非常迅速,并且以良好的收率和良好的收率对各种酚和羟基化的杂芳烃进行了氟代硫酸化。
A New Portal to SuFEx Click Chemistry: A Stable Fluorosulfuryl Imidazolium Salt Emerging as an “F−SO<sub>2</sub>
+” Donor of Unprecedented Reactivity, Selectivity, and Scope
作者:Taijie Guo、Genyi Meng、Xiongjie Zhan、Qian Yang、Tiancheng Ma、Long Xu、K. Barry Sharpless、Jiajia Dong
DOI:10.1002/anie.201712429
日期:2018.3.1
in highly functional molecules. We now report that a solid fluorosulfuryl imidazolium triflate salt delivers the same “F−SO2+” fragment to Nu−H acceptor groups in the substrates. However, this triflate salt is a far more reactive fluorosulfurylating agent than SO2F2 and displays selectivity preferences of its own. Moreover, the new azolium triflate reagent reacts once with primary amines and anilines
已经发现,硫酰氟SO 2 F 2在各种环境中,甚至在高功能分子中,都可以使苯酚衍生化。现在,我们报告固体三氟甲磺酸氟磺酰基咪唑鎓盐向底物中的Nu-H受体基团传递相同的“ F-SO 2 + ”片段。但是,这种三氟甲磺酸盐是一种比SO 2 F 2更具活性的氟磺化剂,并显示出其自身的选择性偏好。而且,在停止反应之前,新的三氟甲磺酸偶氮鎓试剂与伯胺和苯胺反应一次。另一方面,用三乙胺和两当量的“ F-SO 2 +“供体存在,它以良好的收率继续进行双(氟硫磺酰基)酰亚胺的转化-这是我们从未见过的两个重要的转化反应,我们将磺酰氟用作亲电试剂。
FLUOROSULFONYL-CONTAINING COMPOUND, INTERMEDIATE THEREOF, PREPARATION METHOD THEREFOR AND USE THEREOF
申请人:Shanghai Institute of Organic Chemistry, Chinese
Academy of Sciences
公开号:EP3715342A1
公开(公告)日:2020-09-30
Disclosed in the present invention were a fluorosulfonyl-containing compound, an intermediate thereof, a preparation method therefor and use thereof. The fluorosulfonyl-containing compound disclosed in the present invention comprises a cation and an anion, the cation being as shown in Formula (1). The fluorosulfonyl-containing compound of the present invention can react with a substrate to efficiently synthesize a fluorosulfonylation product, has low toxicity, was simple to prepare, was convenient to use, and was in a solid stable state at normal temperature. Furthermore, the compound has a wide range of adaptable substrates, including phenolic compounds and amine compounds, and was the only solid form agent that can achieve such a chemical conversion, and therefore has important academic and application value.
Fluorosulfonyl-containing compound, intermediate thereof, preparation method therefor and use thereof
申请人:SHANGHAI INSTITUTE OF ORGANIC CHEMISTRY, CHINESE ACADEMY OF SCIENCES
公开号:US11091442B2
公开(公告)日:2021-08-17
Disclosed in the present invention were a fluorosulfonyl-containing compound, an intermediate thereof, a preparation method therefor and use thereof. The fluorosulfonyl-containing compound disclosed in the present invention comprises a cation and an anion, the cation being as shown in Formula (1). The fluorosulfonyl-containing compound of the present invention can react with a substrate to efficiently synthesize a fluorosulfonylation product, has low toxicity, was simple to prepare, was convenient to use, and was in a solid stable state at normal temperature. Furthermore, the compound has a wide range of adaptable substrates, including phenolic compounds and amine compounds, and was the only solid form agent that can achieve such a chemical conversion, and therefore has important academic and application value.