An Effective Preparation of Sulfonyl- or Sulfinyl-Substituted Fluorinated Alkenes and their Stereoselective Addition-Elimination Reactions with Organocuprates
pentafluoropropen‐1‐yl sulfone or sulfoxide, which are easily prepared from commercially available 1,2‐dibromofluoroalkanes, with various organocuprates affords substitution or β‐reduction products in good to excellent yields through an addition–eliminationreaction sequence.
Visible-Light-Induced Arylthiofluoroalkylations of Unactivated Heteroaromatics and Alkenes
作者:Yeojin Choi、Chunghyeon Yu、Jun Soo Kim、Eun Jin Cho
DOI:10.1021/acs.orglett.6b01495
日期:2016.7.1
Visible-light-induced arylthiofluoroalkylations of unactivated heteroaromatics and alkenes have been developed utilizing readily available arylthiofluoroalkyl sources. This method enables simultaneous installation of sulfur and fluoroalkyl moieties, two important functional groups, which demonstrates its potential use for late-stage modifications in the synthesis of functional molecules. This method
Catalytic olefination reaction. Synthesis of fluorinated ethers and thioethers
作者:V. M. Muzalevskiy、E. S. Balenkova、A. V. Shastin、A. G. Goldberg、V. G. Nenajdenko
DOI:10.1007/s11172-012-0187-2
日期:2012.7
Novel synthetic approaches involving catalytic olefination to access fluorinated propyl, allyl, and propargyl ethers and thioethers were developed.
开发了涉及催化烯烃化以获得氟化丙基、烯丙基和炔丙基醚和硫醚的新型合成方法。
Selective fluoroalkylation of thiophenols by 1,2-dibromotetrafluoroethane activated by sulfur dioxide
作者:Vyacheslav G. Koshechko、Lydiya A. Kiprianova、Ludmyla I. Fileleeva、Ludmyla I. Kalinina
DOI:10.1016/j.jfluchem.2007.06.006
日期:2007.11
Treatment of 1,2-dibromotetrafluoroethane with thiophenols in DMF in the presence of sulfur dioxide and pyridines having pK(a) > 5 gives fluoroalkylated thioethers in high yields under mild conditions. The influence of thiophenol reactant structure and medium basicity is discussed. (c) 2007 Elsevier B.V. All rights reserved.
Activation of free-radical polyfluoroalkylation of organic substrates with freon BrCF2CF2Br using a system of organic base-electron transfer mediator
作者:Vyacheslav G. Koshechko、Lydiya A. Kiprianova、Ludmyla I. Kalinina
DOI:10.1016/j.jfluchem.2009.11.003
日期:2010.2
A polyfluoroalkylation of pyrrole and phenols with freon BrCF2CF2Br using sulfur dioxide-substituted pyridine activating system proceeds at the aromatic nucleus by a free-radical mechanism. The essential influence of the basicity of the medium is demonstrated and discussed. (C) 2009 Elsevier B.V. All rights reserved.