Chapter 11, Problem 58P

Interpretation Introduction

(a)

Interpretation:

Give the reaction why the IUPAC name of the compound 1,3-Dimethylbutane is incorrect and give the correct IUPAC name for it.

Concept Introduction:

While naming the branched alkanes, first step is to identify the longest chain of carbon atoms and it is considered as the parent chain. The name of this parent chain becomes the root name of the compound.

Interpretation Introduction

(b)

Interpretation:

Give the reaction why the IUPAC name of the compound 4-Methylpentane is incorrect and give the correct IUPAC name for it.

Concept Introduction:

While naming the branched alkanes, first step is to identify the longest chain of carbon atoms and it is considered as the parent chain. The name of this parent chain becomes the root name of the compound.

Interpretation Introduction

(c)

Interpretation:

Give the reaction why the IUPAC name of the compound 2,2-Diethylbutane is incorrect and give the correct IUPAC name for it.

Concept Introduction:

While naming the branched alkanes, first step is to identify the longest chain of carbon atoms and it is considered as the parent chain. The name of this parent chain becomes the root name of the compound.

If there are two different substituents, then these are listed in alphabetical order and numbering of the chain is done from the end that gives the lower number to the substituent encountered first.

Interpretation Introduction

(d)

Interpretation:

Give the reaction why the IUPAC name of the compound 2-Ethyl-3-methylpentane is incorrect and give the correct IUPAC name for it.

Concept Introduction:

While naming the branched alkanes, first step is to identify the longest chain of carbon atoms and it is considered as the parent chain. The name of this parent chain becomes the root name of the compound.

Interpretation Introduction

(e)

Interpretation:

Give the reaction why the IUPAC name of the compound 2-Propylpentane is incorrect and give the correct IUPAC name for it.

Concept Introduction:

While naming the branched alkanes, first step is to identify the longest chain of carbon atoms and it is considered as the parent chain. The name of this parent chain becomes the root name of the compound.

Interpretation Introduction

(f)

Interpretation:

Give the reaction why the IUPAC name of the compound 2,2-Dimethylheptane is incorrect and give the correct IUPAC name for it.

Concept Introduction:

While naming the branched alkanes, first step is to identify the longest chain of carbon atoms and it is considered as the parent chain. The name of this parent chain becomes the root name of the compound.

If there are two different substituents, then these are listed in alphabetical order and numbering of the chain is done from the end that gives the lower number to the substituent encountered first.

Interpretation Introduction

(g)

Interpretation:

Give the reaction why the IUPAC name of the compound 2,2-Dimethylcyclopropane is incorrect and give the correct IUPAC name for it.

Concept Introduction:

While naming the alkanes having same substituents, numbering is done from the end that gives the lower number.

Interpretation Introduction

(h)

Interpretation:

Give the reaction why the IUPAC name of the compound 1-Ethyl-5-methylcyclohexane is incorrect and give the correct IUPAC name for it.

Concept Introduction:

While naming the branched alkanes, first step is to identify the longest chain of carbon atoms and it is considered as the parent chain. The name of this parent chain becomes the root name of the compound.

The numbering of the parent chain starts from the end that gives the lower number to the substituent encountered first.