Chapter 20.9, Problem 10P

Interpretation Introduction

Interpretation:

Among the products, acetate ion or $\text{1-}$

pentanol, the one that contains isotopically labeled oxygen atom has to be identified when pentyl acetate undergoes saponification with ${}^{\text{18}}\text{O}$ labeled water.

Concept introduction:

The reaction in which the hydrolysis of an ester into alcohol and carboxylic acid takes place in the presence of an acid catalyst, such a reaction is commonly known as acid-catalyzed hydrolysis of an ester.

When ester undergoes hydrolysis in base, it is known as saponification.