KO^tBu mediated efficient approach for the synthesis of fused heterocycles via intramolecular O-/N-arylations

Abstract

KO^tBu mediated an efficient methodology has been developed for the synthesis of 6<italic>H</italic>-benzo[<italic>c</italic>]chromenes, 6<italic>H</italic>-benzo[<italic>c</italic>]chromen-6-ones, carbazoles, dibenzofurans and dibenzooxepins.