Chapter 18, Problem 18.54AP

Interpretation Introduction

(a)

Interpretation:

Among the given compounds, the one which liberates fluoride ion on reaction with an alcoholic $\text{KOH}$ is to be stated.

Concept introduction:

Aryl halides undergo substitution reactions only under drastic conditions. They generally are of two types, addition-elimination and elimination-addition reactions. The elimination addition reaction involves a benzyne intermediate. Whereas, in addition-elimination reaction, it involves Meisenheimer complex formation.

Interpretation Introduction

(b)

Interpretation:

Among the given compound, the one which is not prepared from Williamson ether synthesis is to be stated.

Concept introduction:

Williamson synthesis is a way of preparing ethers by the reaction between an alkyl halide and alkoxide. Williamson synthesis takes place through ${\text{S}}_{\text{N}}2$ reaction mechanism. The carbon atom at which the substitution takes place undergoes inversion of configuration.

Interpretation Introduction

(c)

Interpretation:

Among the given compounds, the one which gives acidic solution on standing with aqueous ethanol solution is to be stated.

Concept introduction:

Solvolysis reaction is the reaction where the nucleophile is a solvent molecule. It may occur in by ${\text{S}}_{\text{N}}\text{1}$, ${\text{S}}_{\text{N}}\text{2}$, or elimination reaction. It may involve the formation of a carbocation intermediate. It may also involve nonclassical ion formation.

Interpretation Introduction

(d)

Interpretation:

Among the given compounds, the one which is cleaved rapidly on reaction with $\text{HI}$ is to be stated.

Concept introduction:

Williamson synthesis is a way of preparing ethers by the reaction between an alkyl halide and alkoxide. Williamson synthesis takes place through ${\text{S}}_{\text{N}}2$ reaction mechanism. The carbon atom at which the substitution takes place undergoes inversion of configuration.