Nucleophilic perfluoroalkylation of diaryldisulfides with perfluorocarboxylate salts
作者:Nicolas Roques
DOI:10.1016/s0022-1139(00)00374-2
日期:2001.2
A new industrial and economical route to trifluoromethyl aryl sufides by thermal decarboxylation of trifluoroacetate salts has been recently developed. The possibility of generalising this reaction of “trifluorodecarboxylation” to RfCO2K (Rf: CCl3, CF2Cl, CF3CF2, CF3CF2CF2) in order to synthesise RfSAr has been studied. Thus, the reaction was effective with RfCO2K (Rf=CCl3, CF3CF2) and a new route
最近已经开发了通过三氟乙酸盐的热脱羧制备三氟甲基芳基硫化物的新的工业和经济途径。为了合成R f SAr,已经研究了将“三氟脱羧”反应合成为R f CO 2 K(R f:CCl 3,CF 2 Cl,CF 3 CF 2,CF 3 CF 2 CF 2)的可能性。因此,该反应在R f CO 2 K(R f = CCl 3,CF 3 CF 2),并简要举例说明了制备芳基五氟乙基硫化物CF 3 CF 2 SAr的新途径。
Copper-mediated oxidative pentafluoroethylthiolation of aryl boronic acids with TMSC2F5 and elemental sulfur
作者:Jia-Xiang Xiang、Xiu-Hua Xu、Feng-Ling Qing
DOI:10.1016/j.jfluchem.2017.07.008
日期:2017.11
A copper-mediated oxidative pentafluoroethylthiolation of arylboronicacids with TMSC2F5 and S8 was developed. This reaction provides a new access to various aryl pentafluoroethyl thioethers. The use of 2-fluoropyridine as the ligand and the ability to carry out the reaction at 70 °C are key features of this oxidative coupling reaction.
开发了铜介导的芳基硼酸与TMSC 2 F 5和S 8的氧化五氟乙硫基化。该反应提供了获得各种芳基五氟乙基硫醚的新途径。使用2-氟吡啶作为配体以及在70°C下进行反应的能力是该氧化偶联反应的关键特征。
Catalytic Borylation of SCF<sub>3</sub>-Functionalized Arenes by Rhodium(I) Boryl Complexes: Regioselective CH Activation at the<i>ortho</i>-Position
作者:Sabrina I. Kalläne、Thomas Braun
DOI:10.1002/anie.201406424
日期:2014.8.25
An unprecedented reaction pathway for the borylation of SCF3‐containing arenes using [Rh(Bpin)(PEt3)3] (pin=pinacolato) is reported. Catalytic processes were developed and the functionalizations proceed under mild reaction conditions. The CHactivations occur with a unique regioselectivity for the position ortho to the SCF3 group, which apparently serves as directing group. Borylated SCF3 compounds
Procédé de préparation de perhalogénoalkylthioéthers
申请人:RHONE-POULENC SPECIALITES CHIMIQUES
公开号:EP0117780A1
公开(公告)日:1984-09-05
L'invention concerne un procédé de préparation de perhalogénoalkylthioéthers, caractérisé en ce que l'on fait réagir un thiophénate alcalin avec un composé de formule:
dans laquelle X1 représente le chlore ou le brome et X2 représente le chlore, le fluor, le radical CF3, le radical CF2CI ou le radical CFCI2 quand X1 représente le chlore, X2 ne peut représenter ni le fluor ni le radical CF2CI, dans un solvant aprotique polaire non nitré sous une pression supérieure à 1 bar.
Les produits obtenus sont utiles comme intermédiaires de synthèse de composés ayant une activité pharmaceutique ou phytosanitaire.