Chapter 12, Problem 12.7YT

Interpretation Introduction

Interpretation:

The mechanism that accounts for the formation of the product in Equation 12-21 is to be drawn.

Concept introduction:

Water can undergo an acid-catalyzed addition to an alkene or alkyne, producing an alcohol or ketone respectively. In these reactions, the electrophilic addition of ${\text{H}}^{\text{+}}$ produces the more stable carbocation intermediate; then ${\text{H}}_{\text{2}}\text{O}$ attacks the carbocation in a coordination step. Thus, we observe Markovnikov addition of water. Equation 12-21 produces an alcohol.