Chapter 23, Problem 34A

a.

Interpretation Introduction

Interpretation: To give the IUPAC names for the given halocarbons.

Concept Introduction: The naming of halocarbons is done by selecting the longest carbon chain. In a trivial system, the haloalkanes are termed alkyl halide. The R-X is used to indicate the alkyl halides in which the R group is the alkyl group and X is the halogen.

Answer to Problem 34A

3-chloroprop-1-ene.

Explanation of Solution

In the structure, the longest carbon chain contains three carbons. There is a double bond in the structure and also a chlorine molecule. Since the double bond is given more priority than the halogen numbering of the longest carbon chain is given from the carbon-containing double bond. Therefore, the name of the structure is given as 3-chloroprop-1-ene.

b.

Interpretation Introduction

Interpretation: To give the IUPAC names for the given halocarbons.

Concept Introduction: The naming of halocarbons is done by selecting the longest carbon chain. In a trivial system, the haloalkanes are termed alkyl halide. The R-X is used to indicate the alkyl halides in which the R group is the alkyl group and X is the halogen.

Answer to Problem 34A

1,2-dichloro-4-methylpentane

Explanation of Solution

The longest carbon chain contains five carbons. There are two chlorine molecules one at the first carbon and the other at the second carbon. There is also a methyl group present at the fourth carbon in the structure. Therefore, it is named 1,2-dichloro-4-methylpentane.

c.

Interpretation Introduction

Interpretation: To give the IUPAC names for the given halocarbons.

Concept Introduction: The naming of halocarbons is done by selecting the longest carbon chain. In a trivial system, the haloalkanes are termed alkyl halide. The R-X is used to indicate the alkyl halides in which the R group is the alkyl group and X is the halogen.

Answer to Problem 34A

1,3-dibromobenzene

Explanation of Solution

In this case, the benzene with 6 carbons is the longest chain. There is a bromine atom present at the first carbon and the third carbon. Therefore, it is named 1,3-dibromobenzene.