Chapter 18, Problem 18.6YT

Interpretation Introduction

Interpretation:

The acetal of pentanal in which both RO groups are propoxy (${\text{CH}}_{\text{3}}{\text{CH}}_{\text{2}}{\text{CH}}_{\text{2}}\text{O}$) groups is to be drawn.

Concept introduction:

When an aldehyde or a ketone is treated with a large excess of an alcohol under acidic conditions, the alcohol adds twice to the carbonyl carbon to produce an acetal. The acetal has two alkoxy (RO) groups from the alcohol attached to the initial carbonyl carbon.