Chapter 9, Problem 89AE

Interpretation Introduction

Interpretation: Indole smells terrible in high concentrations but has a pleasant floral like odor when highly diluted (Figure 1) the molecule is planar, and the nitrogen is a very weak base, with $K_b=2\times {10}^{-12}$ . An explanation as to how the given statement corresponding to indole leads to the conclusion that it is an aromatic molecule is to be stated.

Concept introduction: Indole is an organic compound, and is hetercyclic, which is found in jasmine. It is also known s benzopyrole and precursor to an amino acid; tryptophan.

To determine: An explanation as to how the given statement corresponding to indole leads to the conclusion that it is an aromatic molecule.

Figure 1