Essential Organic Chemistry, Global Edition
Essential Organic Chemistry, Global Edition
3rd Edition
ISBN: 9781292089034
Author: Paula Yurkanis Bruice
Publisher: PEARSON
Question
Book Icon
Chapter 12.9, Problem 25P

(a)

Interpretation Introduction

Interpretation: The products for the given reaction have to be identified.

Concept Introduction:

Ketals:

Ketals are used to protect the carbonyl group of the ketone.

In the following example, the carbonyl group of the acetone has been protected as ketal by using ethylene glycol.

Example:

  Essential Organic Chemistry, Global Edition, Chapter 12.9, Problem 25P , additional homework tip  1

In acidic condition, a ketone reacts with two molecules of alcohol or a molecule of diol to form ketal or cyclic ketal respectively.

General scheme:

  Essential Organic Chemistry, Global Edition, Chapter 12.9, Problem 25P , additional homework tip  2

 Hydrolysis of Ketal:

 Hydrolysis of ketal gives back the corresponding alcohol and the corresponding ketone from which the ketal has been formed. The hydrolysis takes place only in acidic conditions. So, the hydrolysis of ketal is an acid-catalyzed hydrolysis reaction.

 General scheme:

 Essential Organic Chemistry, Global Edition, Chapter 12.9, Problem 25P , additional homework tip  3

(b)

Interpretation Introduction

Interpretation: The products for the given reaction have to be found.

Concept Introduction:

Ketals:

Ketals are used to protect the carbonyl group of the ketone.

In the following example, the carbonyl group of the acetone has been protected as ketal by using ethylene glycol.

Example:

Essential Organic Chemistry, Global Edition, Chapter 12.9, Problem 25P , additional homework tip  4

In acidic condition, a ketone reacts with two molecules of alcohol or a molecule of diol to form ketal or cyclic ketal respectively.

General scheme:

Essential Organic Chemistry, Global Edition, Chapter 12.9, Problem 25P , additional homework tip  5

 Hydrolysis of Ketal:

 Hydrolysis of ketal gives back the corresponding alcohol and the corresponding ketone from which the ketal has been formed. The hydrolysis takes place only in acidic conditions. So, the hydrolysis of ketal is an acid-catalyzed hydrolysis reaction.

 General scheme:

 Essential Organic Chemistry, Global Edition, Chapter 12.9, Problem 25P , additional homework tip  6

Blurred answer
Students have asked these similar questions
what is the product of the given reactions?
What are the products of the following reaction?
Draw the products of the following reaction. Indicate whether reaction is an oxidation or a reduction.
Knowledge Booster
Background pattern image
Recommended textbooks for you
Text book image
Chemistry
Chemistry
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Cengage Learning
Text book image
Chemistry
Chemistry
ISBN:9781259911156
Author:Raymond Chang Dr., Jason Overby Professor
Publisher:McGraw-Hill Education
Text book image
Principles of Instrumental Analysis
Chemistry
ISBN:9781305577213
Author:Douglas A. Skoog, F. James Holler, Stanley R. Crouch
Publisher:Cengage Learning
Text book image
Organic Chemistry
Chemistry
ISBN:9780078021558
Author:Janice Gorzynski Smith Dr.
Publisher:McGraw-Hill Education
Text book image
Chemistry: Principles and Reactions
Chemistry
ISBN:9781305079373
Author:William L. Masterton, Cecile N. Hurley
Publisher:Cengage Learning
Text book image
Elementary Principles of Chemical Processes, Bind...
Chemistry
ISBN:9781118431221
Author:Richard M. Felder, Ronald W. Rousseau, Lisa G. Bullard
Publisher:WILEY