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。
Visible-Light-Mediated Organocatalyzed Thiol–Ene Reaction Initiated by a Proton-Coupled Electron Transfer
作者:Vitalij V. Levin、Alexander D. Dilman
DOI:10.1021/acs.joc.9b01331
日期:2019.6.21
A convenient method for performing a thiol–ene reaction is described. The reaction is performed under blue-light irradiation and catalyzed by photoactive Lewis basic molecules such as acridine orange or naphthalene-fused N-acylbenzimidazole. It is believed that the process is initiated by a proton-coupled electron transfer process within the complex between the thiol and the Lewis basic catalyst.
Evidence for intramolecular [2+2] cycloaddition process in the photo-claisen rearrangement
作者:Boris S̆ket、Natas̆a Zupanc̆ic̆、Marko Zupan
DOI:10.1016/s0040-4020(01)87481-0
日期:1986.1
Photoreaction of pentafluorophenyl-prop-2-enyl ether in cyclohexane at λ = 253.7 nm resulted in intramolecular [2+2] cycloaddition, forming 2,3,4,5,6-pentafluoro-1,8-epoximethano bicyclo[4.2.0]octa-2,4-diene, while a similar reaction of the thio analogue led to C—S bond cleavage.