Chapter 10, Problem 10.3YT

Interpretation Introduction

Interpretation:

Necessary curved arrows for the following reaction are to be drawn and each step is to be labeled as either “proton transfer” or “${\text{S}}_{\text{N}}2$.”

Concept introduction:

A curved arrow represents the movement of the pair of valence electrons.

A curved arrow is used to indicate bond formation or bond breaking.

In case of proton transfer reaction, proton is abstracted by the electronegative atom like nitrogen.

In ${\text{S}}_{\text{N}}2$ reaction, nucleophilic substitution takes place in a single step. In this reaction, bond formation between the nucleophile and substrate and bond breaking between the leaving group and substrate take place simultaneously.