<i>O</i>-<i>vs. N</i>-protonation of 1-dimethylaminonaphthalene-8-ketones: formation of a<i>peri</i>N–C bond or a hydrogen bond to the pi-electron density of a carbonyl group

Abstract

<italic>Peri</italic>-amino-naphthylketones protonate on<italic>O</italic>or<italic>N</italic>forming a long<italic>peri</italic>-N–C bond or a hydrogen bond to the ketone's π-density.