1H-benzo[de]cinnoline and 8-hydroxy-1-naphthonitrile
Abstract
8-Hydroxy-1-naphthaldehyde reacts with hydrazine to give 1H-benzo[de]cinnoline; some reduction to 8-methyl-1-naphthol also takes place. The oxime of 8-hydroxy-1-naphthaldehyde does not cyclise analogously to an oxazine; instead dehydration to the nitrile occurs.