Chapter 11, Problem 11.42SP

(a)

Interpretation Introduction

To determine: The accomplishment of given synthetic conversion.

Interpretation: The accomplishment of given synthetic conversion is to be stated.

Concept introduction: The metallic sodium is used for conversion of alcohols into sodium alkoxide. The further reaction of sodium alkoxide with an alkyl halide yields ether compounds.

(b)

Interpretation Introduction

To determine: The accomplishment of given synthetic conversion.

Interpretation: The accomplishment of given synthetic conversion is to be stated.

Concept introduction: Sodium hydroxide is used for the conversion of alkyl halide into primary alcohol. The conversion of a primary alcohol into aldehyde is done by PCC reagent.

The Grignard reagent is prepared by reaction of an alkyl halide with metallic magnesium in the presence of THF (tetra hydro furan). The further reaction of prepared aldehyde with Grignard reagent in the presence of ${\text{ether/H}}_{\text{3}}{\text{O}}^{\text{+}}$ followed by heat yields an alkene with $\text{C-C}\text{coupling}$.

(c)

Interpretation Introduction

To determine: The accomplishment of given synthetic conversion.

Interpretation: The accomplishment of given synthetic conversion is to be stated.

Concept introduction: The Grignard reagent is prepared by reaction of an alkyl halide with metallic magnesium in the presence of THF (tetra hydro furan). The further reaction of an aldehyde with Grignard reagent in the presence of ${\text{ether/H}}_{\text{3}}{\text{O}}^{\text{+}}$ yields an alcohol. The conversion of a primary alcohol into aldehyde is done by PCC reagent.

(d)

Interpretation Introduction

To determine: The accomplishment of given synthetic conversion.

Interpretation: The accomplishment of given synthetic conversion is to be stated.

Concept introduction: The conversion of a primary alcohol into aldehyde is done by PCC reagent. The further reaction of aldehyde with Grignard reagent in the presence of ${\text{ether/H}}_{\text{3}}{\text{O}}^{\text{+}}$ yields an alcohol.