The organocatalytic synthesis of perfluorophenylsulfides <i>via</i> the thiolation of trimethyl(perfluorophenyl)silanes and thiosulfonates
作者:Jinyun Luo、Muze Lin、Leifang Wu、Zhihua Cai、Lin He、Guangfen Du
DOI:10.1039/d1ob01350e
日期:——
The organic superbase t-Bu-P4-catalyzed direct thiolation of trimethyl(perfluorophenyl)silanes and thiosulfonates was developed. Yields of perfluorophenylsulfides of up to 97% under catalysis of 5 mol% t-Bu-P4 were achieved. This method was shown to provide an efficient way to construct the perfluorophenyl–sulfur bond under mild metal-free reaction conditions.
开发了有机超碱t -Bu-P 4催化的三甲基(全氟苯基)硅烷和硫代磺酸盐的直接硫醇化反应。在 5 mol% t -Bu-P 4的催化下,全氟苯硫醚的产率高达 97% 。该方法被证明提供了一种在温和的无金属反应条件下构建全氟苯基-硫键的有效方法。
Expedient synthesis of tetrafluorophenoxthiines and derivatives by copper(I)-catalyzed cross-coupling reaction
作者:Chuanming Yu、Gaobo Hu、Cuiling Zhang、Ran Wu、Haiwei Ye、Guanghui Yang、Xiangjun Shi
DOI:10.1016/j.jfluchem.2013.05.023
日期:2013.9
synthesized from pentafluorobenzene and arylthiols or diaryldisulfides in the presence of copper catalyst and ligand by using O2 as the oxidant, t-BuOLi as the base at 100 °C. The ligand (E)-3-(dimethylamino)-1-(2-hydroxyphenyl)prop-2-en-1-one (L) played an indispensable role in the reaction. This work contains a notable mode of CF bondactivation, which is in the ortho position to the CH bond of pentafluorobenzene
The thiolate anion as a nucleophile Part XIV. further reactions of tin(II) arenethiolates
作者:J.Joseph Jesudason、Michael E. Peach
DOI:10.1016/s0022-1139(00)81036-2
日期:1988.12
The reactions of tin(II) benzenethiolate in DMF with hexafluorobenzene, chloropentafluorobenzene and bromopentafluorobenzene have been compared. Replacement of fluorine and chlorine by the phenylthio group and protodebromination were observed. DMF was a better solvent than either ethylene glycol/pyridine mixture (1:2) or diglyme for the reaction. New products have been isolated and characterized from
Copper-Catalyzed Direct Thiolation of Pentafluorobenzene with Diaryl Disulfides or Aryl Thiols by C-H and C-F Bond Activation
作者:Chuanming Yu、Cuiling Zhang、Xiangjun Shi
DOI:10.1002/ejoc.201101676
日期:2012.4
A Cu-catalyzed cross-coupling reaction of diaryldisulfides or arylthiols with pentafluorobenzene using CuBr as the catalyst, tBuOLi or tBuOK as the base in DMSO at 60 °C under an O2 atmosphere was investigated. The corresponding bisarylthiolation products were obtained in moderate to good yields by C–Hbond and C–Fbondactivation. When 1,10-phenanthroline·H2O and DDQ were added to the above system
Rhodium-catalyzed interconversion between acid fluorides and thioesters controlled using heteroatom acceptors
作者:Mieko Arisawa、Toru Yamada、Masahiko Yamaguchi
DOI:10.1016/j.tetlet.2010.09.009
日期:2010.11
A rhodium complex catalyzed the equilibrium acyl transfer reaction between acid fluorides and thioesters. In the presence of fluoride or thiolate acceptors, the reaction could be shifted to either product. RhH(PPh3)(4)-dppe catalyzed the reaction of acid fluorides and diorgano disulfides in the presence of triphenylphosphine giving thioesters, which was accompanied by triphenylphosphine difluoride. The same complex catalyzed the reaction of aryl thioesters and hexafluorobenzene giving acid fluorides, which was accompanied by 1,4-di(arylthio)-2,3,5,6-tetrafluorobenzenes. (C) 2010 Published by Elsevier Ltd.