Über Mannichbasen, 15. Mitt. Reaktion von Hexamethylentetramin mit 1-Naphthol und 2-bzw. 4-substituierten Derivaten

Mannich Bases, XV: Reaction of Hexamethylenetetramine with 1-Naphthol and its 2- and 4-Substituted Derivatives The product from the reaction of hexamethylenetetramine with 1-naphthol described by Duff and Bills does not show the N,O-acetal structure 1 that was claimed by the authors. Rather, the product is polycondensated material, which probably forms in reactions of the 2- and 4-positions of 1-naphthol. This assumption is confirmed by model experiments with 1-naphthol derivatives which carry substituents at positions 2 or 4.