Chapter 18, Problem 45P

Interpretation Introduction

Interpretation:

A mechanistic reason for the observed regiospecific addition of the alcohol to dihydropyran is to be proposed.

Concept introduction:

In hydration of an alkene, the first step involves the protonation of alkene to form an intermediate carbocation. In the next step, the carbocation is attacked by the nucleophile. Finally, deprotonation through a base yields the final product.

Resonance structure is a blend of two or more Lewis structures. Resonance structures are represented by a double headed arrow between the structures.