Chapter 22, Problem 22.57P

(a)

Interpretation Introduction

Interpretation:

The synthesis method of labetalol from salicylic acid and benzyl chloride has to be proposed.

Concept Introduction:

Retrosynthetic analysis:

In an organic synthesis, the transformation of target molecule into simpler precursor molecules regardless of any reactivity or interaction with reagents.  A retrosynthetic analysis is involving the breaking of a bond to form two or more synthons.

(b)

Interpretation Introduction

Interpretation:

The structure of dilevalol with its configuration has to be given.

Concept Introduction:

Stereoisomers and chiral:

Isomers differing only in their spatial arrangement of atoms are called as stereoisomers.

The geometric property of a molecule that cannot be superimposed on its mirror image is known as chirality.  Chiral carbon is the one which is attached with four different groups or atoms.