Chapter 19.15, Problem 19.22P

(a)

Interpretation Introduction

Interpretation:

The structure of the major product obtained from $\left(R,R\right)$ isomer of the amine is to be drawn.

Concept introduction:

In Hoffman’s elimination reaction, the less substituted alkene as the more favourable product, whereas according to Zaitsev rule more substituted alkenes are considered as more favourable product. The notations $\text{E}\text{or}\text{Z}$ are used to describe the geometry around the double bond of an alkene, whereas nomenclature cis or trans is used to describe the relative configurations $\left(\text{R}\text{or}\text{S}\right)$. In the cis or trans compound, the molecular formula remains same but arrangement of the atoms in space is different. Cis or trans and $\text{E}\text{or}\text{Z}$ are not interrelated to each other.

(b)

Interpretation Introduction

Interpretation:

The formation of the Zaitsev product using stereochemical drawings of the transition states are to be shown.

Concept introduction:

In Hoffman’s elimination reaction, the less substituted alkene as the more favourable product, whereas according to Zaitsev rule more substituted alkenes are considered as more favourable product. The notations $\text{E}\text{or}\text{Z}$ are used to describe the geometry around the double bond of an alkene, whereas nomenclature cis or trans is used to describe the relative configurations $\left(\text{R}\text{or}\text{S}\right)$. In the cis or trans compound, the molecular formula remains same but arrangement of the atoms in space is different. Cis or trans and $\text{E}\text{or}\text{Z}$ are not interrelated to each other.