Chapter 16.4, Problem 1LTS

Interpretation Introduction

Interpretation:

For the given reaction, the products and the mechanism that explains the formation of each product are needed to be determined.

Concept introduction:

Conjugated Dienes undergoes addition reactions with $\text{HBr}$ as similar to simple alkenes addition with $\text{HBr}$.

• The allylic carbocation is formed as an intermediate by the addition of proton in the $\text{HBr}$,
• The ${\text{Br}}^{-}$(nucleophilic) can attacks in either of the two resonance stabilized carbocation’s in the in the allylic intermediate.