Chapter 24, Problem 24.46SP

(a)

Interpretation Introduction

To determine: The structures for the intermediates $1$ and $2$ in the given synthetic scheme.

Interpretation: The structures for the intermediates $1$ and $2$ in the given synthetic scheme are to be shown.

Concept introduction: Amino acids can occur in D and L configurations which are usually used by the cells of the living organism. The left-handed configuration of an amino acid around the central carbon atom is known as L-form of amino acid and the right-handed configuration of an amino acid around a central carbon atom is known as R-form of amino acid.

(b)

Interpretation Introduction

To determine: The fact that helps in knowing that the product is entirely the unnatural D-configuration.

Interpretation: The fact that helps in knowing that the product is entirely the unnatural D-configuration is to be given.

Concept introduction: Amino acids can occur in D and L configurations which are usually used by the cells of the living organism. The left-handed configuration of an amino acid around the central carbon atom is known as L-form of amino acid and the right-handed configuration of an amino acid around a central carbon atom is known as R-form of amino acid.