Chapter 13, Problem 13.131QP

(a)

Interpretation Introduction

To determine: If the anion of Crestor is chiral and the number of chiral centers present in this compound.

Interpretation: The chirality of the anion of Crestor and the number of chiral centers in a compound is to be identified.

Concept introduction: Chiral molecules are those molecules that consist of different groups or atoms around the centre atom. They don’t possess symmetry. Optical activity of compounds relies upon chirality. Only those compounds can rotate light that possess chiral centers.

(b)

Interpretation Introduction

To determine: The constitutional isomers of Crestor.

Interpretation: The structures of the possible constitutional isomers for the given anion are to be drawn.

Concept introduction: Constitutional isomers are the type of isomers that comprises of same molecular formula but they differ in the connectivity of different atoms in the structures.