Chapter 8, Problem 8.29AP

Interpretation Introduction

(a)

Interpretation:

The structures of all ethers with the molecular formula ${\text{C}}_{\text{5}}{\text{H}}_{\text{12}}\text{O}$ are to be drawn.

Concept introduction:

The compounds that have the same molecular formula but have different connectivity of molecules are termed as constitutional isomers. The constitutional isomers are also known as structural isomers. These compounds consist of the same chemical formula but the sequence of atoms to each other is different.

Interpretation Introduction

(b)

Interpretation:

The chiral ethers with the molecular formula ${\text{C}}_{\text{5}}{\text{H}}_{\text{12}}\text{O}$ are to be identified.

Concept introduction:

A carbon atom that has four non-equivalent atoms or groups attached to it is known as chiral carbon atom. Chiral carbon centers are also called as asymmetric or stereogenic centers.

Interpretation Introduction

(c)

Interpretation:

All the ethers with the molecular formula ${\text{C}}_{\text{5}}{\text{H}}_{\text{12}}\text{O}$ are to be named using common and IUPAC substitutive nomenclature.

Concept introduction:

The ethers contain $\text{R}-\text{O}-{\text{R}}^{\text{'}}$ functional group in their parent chain and are named by using smaller alkoxy substituent. Ethers can be symmetrical or asymmetrical. The name of ether depends upon the groups bonded to oxygen. The groups attached with the oxygen can either be same or different.

The systematic naming of organic compound is given by IUPAC nomenclature. The naming of organic compound is done such that the structure of organic compound is correctly interpreted from the name.

Interpretation Introduction

(d)

Interpretation:

In all the ethers with the molecular formula ${\text{C}}_{\text{5}}{\text{H}}_{\text{12}}\text{O}$, the two $\alpha \text{-}$ carbons on each structure are to be shown.

Concept introduction:

In organic compounds, an alpha carbon atom is the first carbon atom that is bonded to a functional group. In ethers $\text{R}-\text{O}-{\text{R}}^{\text{'}}$, there are two alpha carbon atoms that are bonded to an oxygen atom and are denoted as $\alpha \text{-}$ carbon in the structure.