Chapter 23.1, Problem 1P

Interpretation Introduction

a)

Interpretation:

The product obtained in the aldol reaction of butanal is to be given.

Concept introduction:

Aldehydes and ketones with α-hydrogen undergo a base catalyzed carbonyl condensation reaction in aldol condensation. In this reaction two molecules of the reactant combine by forming a bond between α-carbon of one molecule and the carbonyl carbon of the second molecule. The product is a β-hydroxyaldehyde or ketone.

To give:

The product obtained in the aldol reaction of butanal.

Interpretation Introduction

b)

Interpretation:

The product obtained in the aldol reaction of acetophenone is to be given.

Concept introduction:

Aldehydes and ketones with α-hydrogen undergo a base catalyzed carbonyl condensation reaction in aldol condensation. In this reaction two molecules of the reactant combine by forming a bond between α-carbon of one molecule and the carbonyl carbon of the second molecule. The product is a β-hydroxyaldehyde or ketone.

To give:

The product obtained in the aldol reaction of acetophenone.

Interpretation Introduction

c)

Interpretation:

The product obtained in the aldol reaction of cyclopentanone is to be given.

Concept introduction:

Aldehydes and ketones with α-hydrogen undergo a base catalyzed carbonyl condensation reaction in aldol condensation. In this reaction two molecules of the reactant combine by forming a bond between α-carbon of one molecule and the carbonyl carbon of the second molecule. The product is a β-hydroxyaldehyde or ketone.

To give:

The product obtained in the aldol reaction of cyclopentanone.