A class of effective decarboxylative perfluoroalkylating reagents: [(phen)<sub>2</sub>Cu](O<sub>2</sub>CR<sub>F</sub>)
作者:Yangjie Huang、Manjaly J. Ajitha、Kuo-Wei Huang、Zhongxing Zhang、Zhiqiang Weng
DOI:10.1039/c6dt00277c
日期:——
[(phen)2Cu](O2CRF) (1) for the decarboxylative perfluoroalkylation of aryl and heteroaryl halides. Treatment of copper tert-butyloxide with phenanthroline ligands, with subsequent addition of perfluorocarboxylic acids afforded air-stable copper(I) perfluorocarboxylato complexes 1. These complexes reacted with a variety of aryl and heteroaryl halides to form perfluoroalkyl(hetero)arenes in moderate to high
Heterogeneous Photoinduced Homolytic Aromatic Substitution of Electron-Rich Arenes with Perfluoroalkyl Groups in Water and Aqueous Media - A Radical-Ion Reaction
作者:Sebastián Barata-Vallejo、Marina Martín Flesia、Beatriz Lantaño、Juan E. Argüello、Alicia B. Peñéñory、Al Postigo
DOI:10.1002/ejoc.201201271
日期:2013.2
transfer (PET) substitutionreaction of electron-rich aromatic nuclei with perfluoroalkyl Rf groups was carried out in water or aqueous mixtures to render substitution products resulting from replacement of aromatic H atoms with the Rf moiety in good yields (57–88 %). Some mechanistic aspects are discussed, supporting the notion of a PET reaction leading to a classical radical homolyticaromatic substitution
富电子芳香核与全氟烷基 Rf 基团的光诱导电子转移 (PET) 取代反应在水或水性混合物中进行,以良好的产率 (57-88%) 提供由 Rf 部分取代芳香族 H 原子产生的取代产物)。讨论了一些机理方面,支持 PET 反应的概念,导致经典的自由基均裂芳烃取代 (HAS),然后是电子转移 (ET),然后是质子转移 (PT) 序列。提出了一种叠加在氧化还原过程上的自由基机制来解释产品的形成。
A General, Regiospecific Synthetic Route to Perfluoroalkylated Arenes via Arenediazonium Salts with R<sub>F</sub>Cu(CH<sub>3</sub>CN) Complexes
A mild method of converting arylamines into perfluoroalkylatedarenes is described. Relatively stable RFCu(CH3CN) complexes are used as perfluoroalkylating agents, which react smoothly with arenediazoniumsalts to produce various perfluoroalkylarenes in good yields. Based on the results of clock trapping experiments with diallyl ether, a radical process might be involved in the reaction.
New Methods of Free-Radical Perfluoroalkylation of Aromatics and Alkenes. Absolute Rate Constants and Partial Rate Factors for the Homolytic Aromatic Substitution by <i>n</i>-Perfluorobutyl Radical
n-C(4)F(9)I has been utilized as source of C(4)F(9)(*) radical through iodine abstraction by phenyl or methyl radical. The reaction with alkenes, carried out in the presence of catalytic amount of Cu(OAc)(2), leads to substitution by a mechanism substantially identical to the aromatic substitution and not to the usual chain addition of perfluoroalkyl group and iodine atom to the double bond. This has
Synthesis of aminophenyl and methoxyphenyl perfluoroalkyl ketones
作者:Hyeran Lee、Agnieszka Czarny、Merle A. Battiste、Lucjan Strekowski
DOI:10.1016/s0022-1139(98)00230-9
日期:1998.9
The title compounds are obtained by direct hydrolysis of the corresponding 2/4-perfluoroalkyl-substituted anilines and anisoles by the system AcOH/HBr/H2O/Al2O3. A two-step preparation of 2/4-perfluoroacylanilines involves the treatment of the 2/4-perfluoroalkylaniline with sodium ethoxide followed by hydrolysis of the resultant diethyl acetal with hydriodic acid.
通过用AcOH / HBr / H 2 O / Al 2 O 3系统直接水解相应的2 / 4-全氟烷基取代的苯胺和茴香醚,可以得到标题化合物。2 / 4-全氟酰基苯胺的两步制备包括用乙醇钠处理2 / 4-全氟烷基苯胺,然后用氢碘酸水解所得的二乙缩醛。