Chapter 21, Problem 21.73P

Interpretation Introduction

Interpretation:

Complete way forgiven conversion is to be determined.

Concept introduction:

The protecting group is used as a temporary cover in synthesis for the essential functional group and avoids the interferes with another reaction. Protecting groups generally use in the multistep organic synthesis due to chemoselectivity. BOC is the good protecting group for amine and it added to amine in presence of a base. Removal of the BOC group by using strong acid with water, ${\text{H}}_{\text{3}}{\text{O}}^{\text{+}}$ and methanol. A synthesis may be designed by thinking in the reverse direction, from the product to the starting compound, in a method called retrosynthesis. Retrosynthesis involves starting with the product and determining a suitable precursor from which it can be synthesized, without considering specific reactions.