Chapter 14, Problem 14.54SP

(a)

Interpretation Introduction

To determine: The number of ether groups in the given molecule.

Interpretation: The number of ether groups in the given molecule is to be identified.

Concept introduction: The ether group is represented by $\text{R}-\text{O}-\text{R}$. Ethers are of two types. If the alkyl groups attached on either sides of the oxygen atom are the same then the ethers are known as symmetrical ethers. If the alkyl groups attached on either sides of the oxygen atom are different then the ether is known as asymmetrical ether.

(b)

Interpretation Introduction

To determine: The other oxygen-containing functional group in the given compound.

Interpretation: The other oxygen-containing functional group in the given compound is to be identified.

Concept introduction: The alcohol group is represented by $\text{R}-\text{O}-\text{H}$ and the ester group is represented as $\text{RCOOR}$.

(c)

Interpretation Introduction

To determine: The number of atoms present in the large ring.

Interpretation: Large ring contains large number of atoms called macrolide. The number of atoms present in the large ring is to be identified.

Concept introduction: Large ring contains large number of atoms called macrolide.

(d)

Interpretation Introduction

To determine: The number of chiral centres in the given molecule.

Interpretation: The number of chiral centres in the given molecule is to be identified.

Concept introduction: The substances that have four different groups and have non super imposable mirror image are chiral centers.

(e)

Interpretation Introduction

To determine: The number of stereoisomers in the given molecule.

Interpretation: The number of stereoisomers in the given molecule is to be calculated.

Concept introduction: The isomeric molecules having same molecular formula but different special arrangement of their atoms in space are called stereoisomer.