Chapter 27, Problem 20E

Interpretation Introduction

(a)

Interpretation:

The formula of the product obtained by the reaction of $\left(\text{R}\right)\text{-2-iodobutane}$ with $\text{KCN}$ should be written.

Concept introduction:

Nucleophilic substitution reaction $\left({\text{S}}_{\text{N}}2\right)$ is a single step substitution reaction in which electron rich species substitute leaving group. The attack takes place from the back side of the electrophilic center thus an inversion of the configuration takes place. Also, there is a single transition state because bond breaking and bond making occurs simultaneously.

Interpretation Introduction

(b)

Interpretation:

The reaction mechanism of the given nucleophilic substitution reaction is to be determined.

Concept introduction:

Nucleophilic substitution reaction $\left({\text{S}}_{\text{N}}2\right)$ is a single step substitution reaction in which electron rich species substitute leaving group. The attack takes place from the back side of the electrophilic center thus an inversion of the configuration takes place. Also, there is a single transition state because bond breaking and bond making occurs simultaneously.