Chapter 21.5, Problem 31PP

Interpretation Introduction

Interpretation:

The name of the following compound should be determined:

Concept introduction:

The ring structures of the compound having uncommon stability due to delocalized pi electron density shared in between all the carbon atoms of the ring is said to be an aromatic compound.

Answer to Problem 31PP

The name of the compound is propylbenzene.

Explanation of Solution

In order to give the name to the multiple substituted aromatic compounds, the following steps are followed:

1. For single substituted aromatic compound (when the substituent contains six or fewer carbons), the name of the substituted group is written first followed by the name of the aromatic compound.
2. For single substituted aromatic compound (when the substituent contains more than six carbons), the name of the aromatic compound is written first followed by the name of the substituted group.
3. For single substituted aromatic compound, the numbering on the ring is done in such a way that the multiple substituents get the lowest number.

The given structure is:

The given structure is single substituted aromatic compound, benzene that contains three carbon chain, propyl as a substituent so, the name of the compound is propylbenzene.

Interpretation Introduction

Interpretation:

The name of the following compound should be determined:

Concept introduction:

The ring structures of the compound having uncommon stability due to delocalized pi electron density shared in between all the carbon atoms of the ring is said to be an aromatic compound.

Answer to Problem 31PP

The name of the compound is 1-ethyl-2-methylbenzene.

Explanation of Solution

The given structure is:

The given structure is single substituted aromatic compound, benzene that contains two substituents; two carbon chain, ethyl and one carbon, methyl (the numbering of the substituents is done in alphabetical order in the compound).

So, the name of the compound is 1-ethyl-2-methylbenzene.

Interpretation Introduction

Interpretation:

The name of the following compound should be determined:

Concept introduction:

The ring structures of the compound having uncommon stability due to delocalized pi electron density shared in between all the carbon atoms of the ring is said to be an aromatic compound.

Answer to Problem 31PP

The name of the compound is 1-ethyl-2, 3-dimethylbenzene.

Explanation of Solution

The given structure is:

The given structure is single substituted aromatic compound, benzene that contains three substituents; two carbon chain, ethyl and two one carbon, methyl substituents (the numbering of the substituents is done in alphabetical order in the compound).

So, the name of the compound is 1-ethyl-2, 3-dimethylbenzene.