Chapter 8.6, Problem 12P

Interpretation Introduction

a)

Interpretation:

The product obtained by the catalytic hydrogenation of 2-methyl-2-pentene is to be given.

Concept introduction:

Alkenes react with H₂ in the presence of metal catalysts such as palladium or platinum to yield the corresponding alkanes as the products. The addition occurs with syn stereochemistry. Normally only a single product is produced as the catalyst will interact only from the least hindered and most accessible face of the alkene.

To give:

The product obtained by the catalytic hydrogenation of 2-methyl-2-pentene.

Interpretation Introduction

b)

Interpretation:

The product obtained by the catalytic hydrogenation of 3,3-dimethylcyclopentene is to be given.

Concept introduction:

Alkenes react with H₂ in the presence of metal catalysts such as palladium or platinum to yield the corresponding alkanes as the products. The addition occurs with syn stereochemistry. Normally only a single product is produced as the catalyst will interact only from the least hindered and most accessible face of the alkene.

To give:

The product obtained by the catalytic hydrogenation of 3,3-dimethylcyclopentene.

Interpretation Introduction

c)

Interpretation:

The product obtained by the catalytic hydrogenation of 3-tert-butylcyclohexene is to be given.

Concept introduction:

Alkenes react with H₂ in the presence of metal catalysts such as palladium or platinum to yield the corresponding alkanes as the products. The addition occurs with syn stereochemistry. Normally only a single product is produced as the catalyst will interact only from the least hindered and most accessible face of the alkene.

To give:

The product obtained by the catalytic hydrogenation of 3-tert-butylcyclohexene.