Chapter 13, Problem 13.47UKC

a.

Interpretation Introduction

Interpretation:

The amine present in benzphetamine has to be labelled as primary, secondary, or tertiary.

Concept Introduction:

Amines are compounds that contains carbon atom bonded to nitrogen in ammonia by replacing one or more hydrogen atoms.  Primary amine is the one, which has only one carbon atom and two hydrogen atoms bonded to the nitrogen atom.  General structure of primary amine is ${\text{RNH}}_{\text{2}}$.  Secondary amine is the one, which has two carbon atoms and one hydrogen atom bonded to the nitrogen atom.  General structure of secondary amine is ${\text{R}}_{\text{2}}\text{NH}$.  Tertiary amine is the one, which has three carbon atoms bonded to the nitrogen atom.  General structure of tertiary amine is ${\text{R}}_{\text{3}}\text{N}$.

b.

Interpretation Introduction

Interpretation:

Constitutional isomer of benzphetamine has to be drawn which contains a primary amine.

Concept Introduction:

Constitutional isomers are the ones that have the same molecular formula but they differ in the connectivity of atoms present in the compound.  The difference in connectivity between the atoms of the molecules results in different compounds.

c.

Interpretation Introduction

Interpretation:

Constitutional isomer of benzphetamine has to be drawn which contains a tertiary amine.

Concept Introduction:

Refer part “b.”.

d.

Interpretation Introduction

Interpretation:

Product that is formed when benzphetamine is treated with acetic acid has to be drawn.