Synthèse Dans La Série Des Phenanthridines I. Recherches Des Conditions Éxperimentales Optimales Dans La Préparation D'Alkyl-6 Phenanthridines Et De Leur Sel

The synthesis of 6-alkylphenanthridines and their corresponding salts has been developed. The well known “biphenyl method” has been studied. Acylation of o-aminobiphenyl is achieved by an acid or the corresponding anhydride or acyl chloride. Cyclization of the intermediate o-acylamidobiphenyl has been studied in various conditions (solvents, temperature…). Quaternization has also been accomplished: new 6-alkylphenanthridinium salts have been prepared in good yields.