SEARCH

SEARCH BY CITATION

Keywords:

  • benzo[a]carbazoles;
  • C[BOND]S bond homolytic cleavage;
  • domino reaction;
  • 6πe electrocyclization;
  • photochemical activation

Abstract

The photochemical synthesis of benzo[a]carbazoles from easily synthesizable 2-aryl-3-(1-tosylalkyl)indoles is presented. Irradiation of these substrates in polar aprotic solvents (acetone or THF) gives selectively the target products in satisfactory yields. This versatile and efficient procedure promises to be a useful alternative to the multistep strategies reported in the literature.