Chapter 10.5, Problem 5E

Interpretation Introduction

Interpretation: The reason behind formation of $\text{2-bromohexane}$ when $1\text{-hexene}$ reacts with polar $\text{HBr}$ should be explained mechanistically.

Concept introduction: Alkenes are considered electron-rich and undergo addition reaction in presence of electrophilic halo acids.The product formed is governed by Markovnikov’s Rule. Rule suggests that negative part of halo acid HX must go to the carbon that has more alkyl substituents or less $\text{H}$ atoms. This is evident as intermediate carbocation involved in this pathway is highly reactive intermediate. In general tertiary carbocation are mote reactive that in turn are more than primary carbocation.