A concise and efficient method for the synthesis of polyfluorinated aromaticethers and thioethers by synergistic cleavage of C-B bond and C-F bond of B(C6F5)3 is reported. The reaction could proceed smoothly with excellent functional-group compatibility. In addition, the transformation represents the first general application of B(C6F5)3 as reaction partners in cross-coupling reaction.
报道了一种通过协同裂解 B(C 6 F 5 ) 3的 CB 键和 CF 键合成多氟芳族醚和硫醚的简洁有效的方法。反应可以顺利进行,具有良好的官能团相容性。此外,该转变代表了 B(C 6 F 5 ) 3作为交叉偶联反应中的反应伙伴的首次普遍应用。
Synthesis of polyfluorinated aryl ethers via ligand-free palladium-catalyzed CF activation of pentafluorobenzene
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.