Chapter 25, Problem 25.3P

Interpretation Introduction

(a)

Interpretation: The structure corresponding to given compound is to be drawn.

Concept introduction: IUPAC nomenclature is a systematic way of naming the organic compounds. The basic principles of IUPAC naming for hydrocarbon are:

1. The hydrocarbon is named after the longest carbon chain.

2. The parent hydrocarbon containing amino group is named as alkane with suffix amine.

3. When the nitrogen atom of amine is substituted with alkyl groups, then the amine is named with prefix $\text{N}$ before the alkyl groups.

Answer to Problem 25.3P

The structure of the given compound is,

Explanation of Solution

The IUPAC name of the compound is $\text{2, 4-dimethylhexan-3-amine}$. The parent chain consists of hexane with amino group. Amino group is present at third carbon atom. Two methyl groups are present on second and fourth carbon atom. Hence, the structure of the given compound is,

Figure 1

Conclusion

The structure of the given compound is shown in Figure 1.

Interpretation Introduction

(b)

Interpretation: The structure corresponding to given compound is to be drawn.

Concept introduction: IUPAC nomenclature is a systematic way of naming the organic compounds. The basic principles of IUPAC naming for hydrocarbon are:

1. The hydrocarbon is named after the longest carbon chain.

2. The parent hydrocarbon containing amino group is named as alkane with suffix amine.

3. When the nitrogen atom of amine is substituted with alkyl groups, then the amine is named with prefix $\text{N}$ before the alkyl groups.

Answer to Problem 25.3P

The structure of the given compound is,

Explanation of Solution

The IUPAC name of the compound is $N\text{-methylpentan-1-amine}$. The parent chain consists of pentane with amino group. Amino group is present at first carbon atom. Methyl group is bonded to nitrogen atom. Hence, the structure of the given compound is,

Figure 2

Conclusion

The structure of the given compound is shown in Figure 2.

Interpretation Introduction

(c)

Interpretation: The structure corresponding to given compound is to be drawn.

Concept introduction: IUPAC nomenclature is a systematic way of naming the organic compounds. The basic principles of IUPAC naming for hydrocarbon are:

1. The hydrocarbon is named after the longest carbon chain.

2. The parent hydrocarbon containing amino group is named as alkane with suffix amine.

3. When the nitrogen atom of amine is substituted with alkyl groups, then the amine is named with prefix $\text{N}$ before the alkyl groups.

Answer to Problem 25.3P

The structure of the given compound is,

Explanation of Solution

The IUPAC name of the compound is $N\text{-isopropyl-}p\text{-nitroaniline}$. The parent ring consists of aniline. Amino group and nitro group are present at para position in the benzene ring. Isopropyl group is bonded to nitrogen atom. Hence, the structure of the given compound is,

Figure 3

Conclusion

The structure of the given compound is shown in Figure 3.

Interpretation Introduction

(d)

Interpretation: The structure corresponding to given compound is to be drawn.

Concept introduction: IUPAC nomenclature is a systematic way of naming the organic compounds. The basic principles of IUPAC naming for hydrocarbon are:

1. The hydrocarbon is named after the longest carbon chain.

2. The parent hydrocarbon containing amino group is named as alkane with suffix amine.

3. When the nitrogen atom of amine is substituted with alkyl groups, then the amine is named with prefix $\text{N}$ before the alkyl groups.

Answer to Problem 25.3P

The structure of the given compound is,

Explanation of Solution

The IUPAC name of the compound is $N\text{-methylpiperidine}$. The parent amine is piperidine. Methyl group is bonded to nitrogen atom. Hence, the structure of the given compound is,

Figure 4

Conclusion

The structure of the given compound is shown in Figure 4.

Interpretation Introduction

(e)

Interpretation: The structure corresponding to given compound is to be drawn.

Concept introduction: IUPAC nomenclature is a systematic way of naming the organic compounds. The basic principles of IUPAC naming for hydrocarbon are:

1. The hydrocarbon is named after the longest carbon chain.

2. The parent hydrocarbon containing amino group is named as alkane with suffix amine.

3. When the nitrogen atom of amine is substituted with alkyl groups, then the amine is named with prefix $\text{N}$ before the alkyl groups.

Answer to Problem 25.3P

The structure of the given compound is,

Explanation of Solution

The IUPAC name of the compound is $N,N\text{-dimethylethanamine}$.The parent chain consists of ethane with amino group. Two methyl groups are bonded to nitrogen atom. Hence, the structure of the given compound is,

Figure 5

Conclusion

The structure of the given compound is shown in Figure 5.

Interpretation Introduction

(f)

Interpretation: The structure corresponding to given compound is to be drawn.

Concept introduction: IUPAC nomenclature is a systematic way of naming the organic compounds. The basic principles of IUPAC naming for hydrocarbon are:

1. The hydrocarbon is named after the longest carbon chain.

2. The parent hydrocarbon containing amino group is named as alkane with suffix amine.

3. When the nitrogen atom of amine is substituted with alkyl groups, then the amine is named with prefix $\text{N}$ before the alkyl groups.

Answer to Problem 25.3P

The structure of the given compound is,

Explanation of Solution

The IUPAC name of the compound is $\text{2-aminocyclohexanone}$. The parent ring consists of cyclohexane with keto group. Amino group is present on second carbon atom. Methyl group is bonded to nitrogen atom. Hence, the structure of the given compound is,

Figure 6

Conclusion

The structure of the given compound is shown in Figure 6.

Interpretation Introduction

(g)

Interpretation: The structure corresponding to given compound is to be drawn.

Concept introduction: IUPAC nomenclature is a systematic way of naming the organic compounds. The basic principles of IUPAC naming for hydrocarbon are:

1. The hydrocarbon is named after the longest carbon chain.

2. The parent hydrocarbon containing amino group is named as alkane with suffix amine.

3. When the nitrogen atom of amine is substituted with alkyl groups, then the amine is named with prefix $\text{N}$ before the alkyl groups.

Answer to Problem 25.3P

The structure of the given compound is,

Explanation of Solution

The IUPAC name of the compound is $N\text{-methylaniline}$. The parent ring consists of aniline. Methyl group is bonded to nitrogen atom. Hence, the structure of the given compound is,

Figure 7

Conclusion

The structure of the given compound is shown in Figure 7.

Interpretation Introduction

(h)

Interpretation: The structure corresponding to given compound is to be drawn.

Concept introduction: IUPAC nomenclature is a systematic way of naming the organic compounds. The basic principles of IUPAC naming for hydrocarbon are:

1. The hydrocarbon is named after the longest carbon chain.

1. The parent hydrocarbon containing amino group is named as alkane with suffix amine.

2. When the nitrogen atom of amine is substituted with alkyl groups, then the amine is named with prefix $\text{N}$ before the alkyl groups.

Answer to Problem 25.3P

The structure of the given compound is,

Explanation of Solution

The IUPAC name of the compound is $m\text{-ethylaniline}$. The parent ring consists of aniline. Ethyl group and amino group are present at meta positions on benzene ring. Hence, the structure of the given compound is,

Figure 8

Conclusion

The structure of the given compound is shown in Figure 8.