Chapter 16.12, Problem 15P

Interpretation Introduction

Interpretation:

A synthesis for the given compounds using the given starting materials is to be outlined.

Concept Introduction:

Alcohols contain hydroxyl group, which is not a good leaving group. Therefore, alcohols do not show substitution reactions directly.

Alcohols upon reaction with phosphorus tribromide are converted into alkyl bromides.

Bromine is a good leaving group and can be substituted by conjugate base of ${\text{H}}_{\text{2}}\text{S}$ to form alkane thiols.