Chapter 12, Problem 59P

(a)

Interpretation Introduction

Interpretation:The name of the following compound should be determined:

Concept Introduction: International Union of Pure and Applied Chemistry (IUPAC) recommended a nomenclature method used for naming organic chemical compounds.

Answer to Problem 59P

1-chloro-4-nitrobenzene.

Explanation of Solution

For the given organic compound, the number of substituents present on benzene ring is two and no substituent in the compound imparts special name. So, the numbering is done according to alphabetical order:

The name of the substituent at position 1 is chloro and at position 4 is nitro. So, the name of the compound is 1-chloro-4-nitrobenzene.

(b)

Interpretation Introduction

Interpretation: The name of the following compound should be determined:

Concept Introduction: International Union of Pure and Applied Chemistry (IUPAC) recommended a nomenclature method used for naming organic chemical compounds.

Answer to Problem 59P

2-bromotoluene.

Explanation of Solution

For the given organic compound, the number of substituents present on benzene ring is two and due to presence of methyl group its parent molecule is -toluene. The numbering for rest substituent is done as shown:

The name of the substituent is -bromo and is present at position 2 so, the name of the compound is 2-bromotoluene.

(c)

Interpretation Introduction

Interpretation: The name of the following compound should be determined:

${\text{C}}_{\text{6}}{\text{H}}_{\text{5}}{\text{CH}}_{\text{2}}{\text{CH}}_{\text{2}}{\text{CH}}_{\text{2}}\text{Cl}$

Concept Introduction: International Union of Pure and Applied Chemistry (IUPAC) recommended a nomenclature method used for naming organic chemical compounds.

Answer to Problem 59P

1-chloro-3-phenylpropane.

Explanation of Solution

In ${\text{C}}_{\text{6}}{\text{H}}_{\text{5}}{\text{CH}}_{\text{2}}{\text{CH}}_{\text{2}}{\text{CH}}_{\text{2}}\text{Cl}$ compound, ${\text{C}}_{\text{6}}{\text{H}}_{\text{5}}$ represents phenyl group, obtained by removing hydrogen atom from benzene ring. The parent chain in the compound is of three carbon atoms alkane so, named as propane and phenyl is present as a substituent so, the numbering is done as:

$\begin{array}{l}{\text{C}}_{\text{6}}{\text{H}}_{\text{5}}{\text{CH}}_{\text{2}}{\text{CH}}_{\text{2}}{\text{CH}}_{\text{2}}\text{Cl}\\ \text{ 3 2 1}\end{array}$

The substituent at position 1 is chloro so, the name of the compound is 1-chloro-3-phenylpropane.

(d)

Interpretation Introduction

Interpretation: The name of the following compound should be determined:

Concept Introduction: International Union of Pure and Applied Chemistry (IUPAC) recommended a nomenclature method used for naming organic chemical compounds.

Answer to Problem 59P

2-bromo-2-phenylbutane.

Explanation of Solution

In the given compound, ${\text{C}}_{\text{6}}{\text{H}}_{\text{5}}$ represents phenyl group, obtained by removing hydrogen atom from benzene ring. The parent chain in the compound is of four carbon atoms alkane so, named as butane and phenyl is present as a substituent so, the numbering is done as:

The substituent at position 2 is bromo so, the name of the compound is 2-bromo-2-phenylbutane.

(e)

Interpretation Introduction

Interpretation: The name of the following compound should be determined:

Concept Introduction: International Union of Pure and Applied Chemistry (IUPAC) recommended a nomenclature method used for naming organic chemical compounds.

Answer to Problem 59P

2-nitroaniline.

Explanation of Solution

For the given organic compound, the number of substituents present on benzene ring is two and due to presence of amine group its parent molecule is -aniline. The numbering for the substituent is done as shown:

The name of the substituent is -nitro present at position 2 so, the name of the compound is 2-nitroaniline.

(f)

Interpretation Introduction

Interpretation: The name of the following compound should be determined:

Concept Introduction: International Union of Pure and Applied Chemistry (IUPAC) recommended a nomenclature method used for naming organic chemical compounds.

Answer to Problem 59P

2-phenylphenol.

Explanation of Solution

For the given organic compound, the number of substituents present on benzene ring is two and due to presence of hydroxyl group its parent molecule is -phenol. The numbering for the substituent is done as shown:

The name of the substituent is -phenyl present at position 2 so, the name of the compound is 2-phenylphenol.

(g)

Interpretation Introduction

Interpretation: The name of the following compound should be determined:

Concept Introduction: International Union of Pure and Applied Chemistry (IUPAC) recommended a nomenclature method used for naming organic chemical compounds.

Answer to Problem 59P

trans -1,2-diphenylethene.

Explanation of Solution

In the given compound, ${\text{C}}_{\text{6}}{\text{H}}_{\text{5}}$ represents phenyl group, obtained by removing hydrogen atom from benzene ring. The parent chain in the compound is of two carbon atoms alkene so, named as ethene and phenyl is present as a substituent so, the numbering is done as:

The phenyl substituents are present at opposite sides of the double bond so, the name of the compound istrans -1,2-Diphenylethene

(h)

Interpretation Introduction

Interpretation: The name of the following compound should be determined:

Concept Introduction: International Union of Pure and Applied Chemistry (IUPAC) recommended a nomenclature method used for naming organic chemical compounds.

Answer to Problem 59P

2,4-dichlorotoluene.

Explanation of Solution

For the given organic compound, the number of substituents present on benzene ring are three and due to presence of methyl group its parent molecule is -toluene. The numbering for the substituent is done as shown:

The name of the substituent is -chloro present at position 2 and 4 so, the name of the compound is 2,4-dichlorotoluene.