Starting from o-anisidine, alkylated 8-hydroxyquinolines 2 and 8-amino
quinolines 3 were obtained. From the latter, dialkylsubstituted 1,10-p
henanthrolines 5 have been prepared in good yields. Reaction of unsubs
tituted 8-aminoquinoline under the same conditions, yielded monoalkyla
ted phenanthrolines 4.