Chapter 18.5, Problem 18.8P

Interpretation Introduction

(a)

Interpretation:

The amine in heroine is to be classified as 1° (primary), 2° (secondary) or 3° (tertiary).

Concept Introduction:

• Amines are organic compound which are derived from ammonia by replacing one or more hydrogen atoms of ammonia by the alkyl groups. The amines can be classified as-

1. Primary amines ( ${\text{RNH}}_2$) - When one hydrogen of ammonia is replaced by the alkyl or aryl group.
2. Secondary amines ( ${\text{R}}_2\text{NH}$) - When two hydrogen atoms of ammonia are replaced by the alkyl or aryl groups.
3. Tertiary amine ( ${\text{R}}_3\text{N}$) - When all three hydrogen atoms of ammonia are replaced by the alkyl or aryl groups.

Interpretation Introduction

(b)

Interpretation:

All the functional groups in the heroine are to be identified.

Concept Introduction:

The substituents present within the molecule and are responsible for the characteristic chemical reactions for the molecules is known as functional groups.