Q1. During the coupling reaction, why does the coupling occur in the 1-position for 2-naphthol? (Hint: write the resonance structure for 2-naphthol in basic solution)
Q2. Para red, also called American Flag Red, a bright-red ago dye, is easily prepared from the reaction of p-nitroaniline, sodium nitrite, and 2-naphthol under the same conditions. Suggest the mechanism for this reaction.
These Question from Organic Chemist II. Experiment: Dyes and Dyeing.