ChemInform Abstract: Heterocyclic Spirocyclohexadienones. Part 3.

Abstract

Heterocyclic Spirocyclohexadienones.Part 3.-Reaction of substituted naphthol derivatives with N-methylnaphthylamine (II) and paraformaldehyde in methanolic solution smoothly provides spirocyclohexadienones in good yield. A plausible reaction mechanism based on detailed studies on the behavior of the spiro-products towards protonic acids, carbonyl reagents and complex hydrides is deduced. -(MOEHRLE, H.; SCHAKE, D.; Arch.