Chapter 21, Problem 21.34P

Interpretation Introduction

Interpretation:

It is to be shown how to carry out the given synthesis.

Concept introduction:

When amines are treated with acyl chloride in the presence of a weak base like pyridine, the amine group is protected in the form of acetamide derivative. For deprotection, simply an acidic condition is required. Potassium dichromate (${\text{K}}_{\text{2}}{\text{Cr}}_{\text{2}}{\text{O}}_{\text{7}}$) is a strong oxidizing agent and oxidizes primary alcohol to a corresponding carboxylic acid.