Chapter 8.14C, Problem 8.35P

(a)

Interpretation Introduction

To determine: The accomplishment of the given conversion.

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

Concept introduction: Osmium tetraoxide with ${\text{H}}_{\text{2}}{\text{O}}_{\text{2}}$ is preferably used for syn dihydroxylation of alkenes. In the first step formation of osmate ester takes place followed by hydrolysis of osmate ester by ${\text{H}}_{\text{2}}{\text{O}}_{\text{2}}$. Hydrogen peroxide re-oxidizes osmium to osmium tetra oxide to continue the dihydroxylation process.

(b)

Interpretation Introduction

To determine: The accomplishment of the given conversion.

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

Concept introduction: A solution of peroxyacetic acid in water is preferably used for anti dihydroxylation of alkenes. The mechanism proceeds through formation of epoxide followed by anti addition of diol through hydrolysis.

(c)

Interpretation Introduction

To determine: The accomplishment of the given conversion.

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

Concept introduction: A solution of peroxyacetic acid in water is preferably used for anti dihydroxylation of alkenes. The mechanism proceeds through formation of epoxide followed by anti addition of diol through hydrolysis.

(d)

Interpretation Introduction

To determine: The accomplishment of the given conversion.

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

Concept introduction: Osmium tetraoxide with ${\text{H}}_{\text{2}}{\text{O}}_{\text{2}}$ is preferably used for syn dihydroxylation of alkenes. In the first step formation of osmate ester takes place followed by hydrolysis of osmate ester by ${\text{H}}_{\text{2}}{\text{O}}_{\text{2}}$. Hydrogen peroxide re-oxidizes osmium to osmium tetra oxide to continue the dihydroxylation process.