Friedel–Crafts reaction is widely used for the C–C bond forming reaction to enable
the direct connection of electron-rich arenes to electron-deficient olefins with high
regioselectivity. Herein, a highly efficient, metal-free, and environmentally benign
F–C strategy of electron-rich arenes with N-arylmaleimides has been developed for the construction of 3-arylsuccinimides in the
presence of a green reagent methanesulfonic acid under mild reaction conditions. This
highly facile and high-yielding protocol has compatibility with different electron-rich
arenes.
Key words
Friedel–Crafts reaction - C-3 arylation - metal-free - green reagent - 3-arylsuccinimides