Benzothiophenes are common motifs in bioactive compounds, but selective functionalization at C3 is challenging. Here the authors report a method starting from benzothiophene S-oxides via an interrupted Pummerer reaction, giving access to a range of C3-alkylated and -arylated products.
- Harry J. Shrives
- José A. Fernández-Salas
- David J. Procter