作者:Faye Buckingham、Samuel Calderwood、Begoña Checa、Thomas Keller、Matthew Tredwell、Thomas Lee Collier、Ian M. Newington、Rajiv Bhalla、Matthias Glaser、Véronique Gouverneur
DOI:10.1016/j.jfluchem.2015.07.030
日期:2015.12
We report a late stage oxidative nucleophilicfluorination of N-arylsulfonamides, a class of compounds so far not considered as precursors to 4-fluorophenyl sulfonamides. By installing a para-positioned tert-butyl substituent on the aniline, oxidative fluorination takes place regioselectively in the presence of HF·pyridine and PIDA. This methodology has been shown to give good yields for a variety