Synthesis of polyfluorinated aryl ethers via ligand-free palladium-catalyzed CF activation of pentafluorobenzene
摘要:
An efficient, ligand-free palladium-catalyzed method for the cross coupling reaction of pentafluor-benzene with phenols was developed. This reaction proceeds via a highly selective C-F bond activation in the 3-position and is compatible with a variety of functional groups, delivering polyfluorinated aryl ethers in moderate to excellent yields. (C) 2013 Elsevier B.V. All rights reserved.
An efficient, ligand-free palladium-catalyzed method for the cross coupling reaction of pentafluor-benzene with phenols was developed. This reaction proceeds via a highly selective C-F bond activation in the 3-position and is compatible with a variety of functional groups, delivering polyfluorinated aryl ethers in moderate to excellent yields. (C) 2013 Elsevier B.V. All rights reserved.
Nucleophilic aryloxydefluorination of pentafluorobenzene without noble metal catalysis
作者:Nicolay Yu. Adonin、Vadim V. Bardin
DOI:10.1016/j.jfluchem.2013.05.016
日期:2013.9
1-Phenoxy-2,3,5,6-tetrafluorobenzene and 1-(4'-fluorophenoxy)-2,3,5,6-tetrafluorobenzene were prepared in a quantitative yield from C6F5H, ArOH and K2CO3 (DMF or DMSO, 120 degrees C, 9-11 h). The catalytic effect of Pd(OAc)(2) in the presence of AgNO3 as claimed in Ref. [1] was not confirmed. (C) 2013 Elsevier B.V. All rights reserved.