Chapter F, Problem F.10P

Interpretation Introduction

(a)

Interpretation:

For the given molecule, the IUPAC is to be written.

Concept introduction:

There are two types of acid anhydrides, symmetric and asymmetric. In symmetric acid anhydrides, the alkyl groups bonded to both carbonyl carbons are the same, i.e., formed from dehydration of two molecules of the same carboxylic acid. The general form of symmetric acid anhydride name is alkanoic anhydride. In asymmetric acid anhydrides, the alkyl groups bonded to both carbonyl carbons are different, i.e., formed from dehydration of molecules of different carboxylic acids. The general form of asymmetric acid anhydride name is alkanoic alkanoic anhydride. The two alkanoic groups appear in alphabetical order. The ‘alkanoic’ corresponds to the specific carboxylic acid(s) that undergo dehydration to produce the anhydride. The ‘alkan’ is the root name for the longest chain containing the carbonyl group.

Interpretation Introduction

(b)

Interpretation:

For the given molecule, the IUPAC is to be written.

Concept introduction:

Acid anhydrides are of two types symmetric and asymmetric. In symmetric acid anhydrides, the alkyl groups bonded to both carbonyl carbons are the same i.e. formed from dehydration of two molecules of same carboxylic acid. The general form of symmetric acid anhydride name is alkanoic anhydride. In asymmetric acid anhydrides, the alkyl groups bonded to both carbonyl carbons are different i.e. formed from dehydration of two molecules of different carboxylic acids. The general form of asymmetric acid anhydride name is alkanoic anhydride. The two alkanoic groups appear in alphabetical order. The ‘alkanoic’ corresponds to the specific carboxylic acid(s) that undergo(es) dehydration to produce the anhydride. The ‘alkan’ is the root name stands for the longest chain having the carbonyl group.

Interpretation Introduction

(c)

Interpretation:

For the given molecule, the IUPAC is to be written.

Concept introduction:

Acid anhydrides are of two types, symmetric and asymmetric. In symmetric acid anhydrides, the alkyl groups bonded to both carbonyl carbons are the same, i.e., formed from dehydration of two molecules of the same carboxylic acid. The general form of symmetric acid anhydride name is alkanoic anhydride. In asymmetric acid anhydrides, the alkyl groups bonded to both carbonyl carbons are different, i.e., formed from dehydration of molecules of different carboxylic acids. The general form of asymmetric acid anhydride name is alkanoic alkanoic anhydride. The two alkanoic groups appear in alphabetical order. The ‘alkanoic’ corresponds to the specific carboxylic acid(s) that undergo(es) dehydration to produce the anhydride. The ‘alkan’ is the root name for the longest chain containing the carbonyl group.