Synthesis of Isocoumarin via PTSA-Catalyzed Annulation of Diarylalkynes
作者:Olivier Provot、Mouâd Alami、Gaëlle Le Bras、Abdallah Hamze、Samir Messaoudi、Pierre-Benoît Le Calvez、Jean-Daniel Brion
DOI:10.1055/s-2008-1072575
日期:2008.5
p-Toluenesulfonic acid (PTSA) in ethanol was used as a mild acid catalyst for the annulation of various functionalized diarylalkynes under microwave irradiation. This metal-free process allowed the synthesis of a range of 3-aryl-substituted isocoumarins in good yields.