A highly regioselective and atom-efficient strategy for the construction of fused free (NH) heteroarenes through a palladium-catalyzed perfluoroalkyl insertionreaction has been accomplished. This protocol employed multiple iodofluoroalkanes as practical and available perfluoroalkyl sources to provide an operationally simple and versatile route for the synthesis of perfluoroalkylated indoles. Moreover
Direct CH perfluoroalkylation of (di)benzo(hetero)arenes in aqueous media
作者:Beatriz Lantaño、Sebastián Barata-Vallejo、M. Rosario Torviso、Sergio M. Bonesi、Juan E. Argüello、Al Postigo
DOI:10.1016/j.jfluchem.2014.02.008
日期:2014.5
of benzo- and dibenzo-(hetero)aromatic compounds without formal leaving groups is achieved efficiently in organic solvent: water mixtures under photostimulation. The methodology is compared to previously reported trifluoromethylation strategies of these nuclei in terms of product yields and regioselectivity. The global reaction is a radical homolytic aromaticsubstitution process, where the perfluoroalkyl-substituted