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Organic And Biological Chemistry

7th Edition
STOKER + 1 other
ISBN: 9781305081079

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Chapter
Section
BuyFindarrow_forward

Organic And Biological Chemistry

7th Edition
STOKER + 1 other
ISBN: 9781305081079
Textbook Problem

Indicate whether each of the following compounds is an acetal.

Chapter 4, Problem 4.99EP, Indicate whether each of the following compounds is an acetal. , example  1

Chapter 4, Problem 4.99EP, Indicate whether each of the following compounds is an acetal. , example  2

Chapter 4, Problem 4.99EP, Indicate whether each of the following compounds is an acetal. , example  3

Chapter 4, Problem 4.99EP, Indicate whether each of the following compounds is an acetal. , example  4

(a)

Interpretation Introduction

Interpretation:

The given compound is an acetal or not has to be indicated.

Concept Introduction:

Aldehydes contain a carbonyl group that is bonded to a hydrogen atom and a carbon atom.  Ketones are compounds that contain a carbonyl group bonded to two carbon atoms.  Aldehydes and ketones undergo addition reaction across the carbonyl group.

Aldehydes and ketones react with alcohol to form hemiacetal as the product.  This reacts with further molecule of aldehyde or ketone to form acetal.

Explanation

Acetal is formed when the formed hemiacetal reacts with further alcohol molecule so that the hydroxyl group in the hemiacetal is converted into alkoxy group.  This can be shown as given below,

Acetal contains two alkoxy groups substituted on the same carbon atom.  Given structure of compound is,

(b)

Interpretation Introduction

Interpretation:

The given compound is an acetal or not has to be indicated.

Concept Introduction:

Aldehydes contain a carbonyl group that is bonded to a hydrogen atom and a carbon atom.  Ketones are compounds that contain a carbonyl group bonded to two carbon atoms.  Aldehydes and ketones undergo addition reaction across the carbonyl group.

Aldehydes and ketones react with alcohol to form hemiacetal as the product.  This reacts with further molecule of aldehyde or ketone to form acetal.

(c)

Interpretation Introduction

Interpretation:

The given compound is an acetal or not has to be indicated.

Concept Introduction:

Aldehydes contain a carbonyl group that is bonded to a hydrogen atom and a carbon atom.  Ketones are compounds that contain a carbonyl group bonded to two carbon atoms.  Aldehydes and ketones undergo addition reaction across the carbonyl group.

Aldehydes and ketones react with alcohol to form hemiacetal as the product.  This reacts with further molecule of aldehyde or ketone to form acetal.

(d)

Interpretation Introduction

Interpretation:

The given compound is an acetal or not has to be indicated.

Concept Introduction:

Aldehydes contain a carbonyl group that is bonded to a hydrogen atom and a carbon atom.  Ketones are compounds that contain a carbonyl group bonded to two carbon atoms.  Aldehydes and ketones undergo addition reaction across the carbonyl group.

Aldehydes and ketones react with alcohol to form hemiacetal as the product.  This reacts with further molecule of aldehyde or ketone to form acetal.

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