A series of new hypervalentiodinereagents based on the 1,3‐dihydro‐3,3‐dimethyl‐1,2‐benziodoxole and 1,2‐benziodoxol‐3‐(1H)‐one scaffolds, which contain a functionalized tetrafluoroethyl group, have been prepared, characterized, and used in synthetic applications. Their corresponding electrophilic fluoroalkylation reactions with various sulfur, oxygen, phosphorus, and carbon‐centered nucleophiles
[EN] HYPERVALENT IODINE CF2CF2X REAGENTS AND THEIR USE<br/>[FR] RÉACTIFS CF2CF2X À BASE D'IODE HYPERVALENT ET LEUR UTILISATION
申请人:ETH ZUERICH
公开号:WO2016019475A1
公开(公告)日:2016-02-11
A hypervalent iodine of formula (I) or formula (II) wherein R is a nucleophile and a method for their production is described. Such compounds can be used for fluoroethylation of compounds carrying a reactive group. A preferred compound carrying a reactive group is cystein in any environment such as peptide targets.
N-(2-bromotetrafluoroethyl) derivatives of five-membered nitrogen-containing heterocycles
作者:Kirill I. Petko、Taras M. Sokolenko、Andreii V. Bezdudny、Lev M. Yagupolskii
DOI:10.1016/j.jfluchem.2005.07.005
日期:2005.10
The synthesis of N-(2-bromotetrafluoroethyl) derivatives of five-membered heterocycles containing one to three nitrogen atom(s) in the ring has been carried out. The reactions of these compounds with various sulfur-containing nucleophiles have been studied, and corresponding sulfides, sulfones and sulfinic acid salts were obtained.
作者:Kirill I. Petko、Sergey Y. Kot、Lev M. Yagupolskii
DOI:10.1016/j.jfluchem.2008.01.008
日期:2008.4
A facile synthetic route to N-polyfluoro(trimethylsilyl)ethyl azole derivatives was developed starting from N-bromo(chloro)polyfluoroethyl-substituted azoles. The silanes thus obtained were reacted with various electrophiles in the presence of the fluoride ion to yield the corresponding fluorinated carbinols, ketones, carboxylic acids, and methyl dithiocarboxylates as well as N-pentafluoroethylbenzimidazole
leads to unique properties, and perfluoroalkylationreagents play a vital role. Although various types of perfluoroalkylationreagents have been developed, existing nucleophilic perfluoroalkylationreagents suffer from chemical lability and limited structural diversity. This work aims to address these challenges by introducing a novel nucleophilic perfluoroalkylationreagent, 4-pyridyl perfluoroalkyl sulfide
将全氟烷基基团引入分子中会产生独特的性质,而全氟烷基化试剂起着至关重要的作用。尽管已经开发了各种类型的全氟烷基化试剂,但现有的亲核全氟烷基化试剂存在化学不稳定和结构多样性有限的问题。这项工作旨在通过引入一种新型亲核全氟烷基化试剂4-吡啶基全氟烷基硫醚(4-PySR f )来解决这些挑战,该试剂表现出基于N-硼基吡啶基阴离子的独特的全氟烷基阴离子释放机制化学。在二硼(4) 化合物和醇盐碱存在下,4-PySR f 有效地将全氟烷基转移到各种亲电子试剂上。值得注意的是,与其他已建立的试剂相比,它表现出优异的转移功能化全氟烷基基团、实现分子内全氟烷基化反应以及参与多步骤合成序列的适用性,为合成复杂的氟化分子提供了稳健的策略。这项工作扩大了 N-硼基吡啶基阴离子化学的合成潜力,并拓宽了亲核全氟烷基化反应的范围。