Chapter 7, Problem 91IP

(a)

Interpretation Introduction

Interpretation:

A mechanism for conversion of compound one to compound two has to be proposed.

Concept Introduction:

$S_{N}1$Reaction: It is a nucleophilic substitution reaction in which the rate determining step depends on one reactant. First step is the formation of more stable carbocation which is followed by the attack of nucleophile. Formation of more stable carbocation and the leaving group present in the substrate plays very important role in the reactivity of ${\text{S}}_{\text{N}}\text{1}$ reaction.

Carbocation: It is carbon ion that bears a positive charge on it.

Leaving group: It is a fragment that leaves from a substrate with a pair of electrons via heterolytic bond cleavage.

Carbocation stability order:

(b)

Interpretation Introduction

Interpretation:

The instantaneous conversion of compound 1 to compound 2 has to be justified using necessary drawings.

Concept Introduction:

$S_{N}1$Reaction: It is a nucleophilic substitution reaction in which the rate determining step depends on one reactant. First step is the formation of more stable carbocation which is followed by the attack of nucleophile. Formation of more stable carbocation and the leaving group present in the substrate plays very important role in the reactivity of ${\text{S}}_{\text{N}}\text{1}$ reaction.

Carbocation: It is carbon ion that bears a positive charge on it.

Leaving group: It is a fragment that leaves from a substrate with a pair of electrons via heterolytic bond cleavage.

Carbocation stability order: