Cyclisation of 2-azidodiphenylmethane and 2-azidobiphenyls by regiospecific N-attack of arylnitrenium–aluminium chloride complexes
Abstract
Decomposition of 2-azidodiphenylmethane and 2-azidobiphenyls in CH2Cl2 in the presence of AlCl3 gave 9,10-dihydroacridine and carbazoles, respectively, in reasonable yields by regiospecific N-attack of an arylnitrenium–AlCl3 complex.