General, Organic, and Biological Chemistry
General, Organic, and Biological Chemistry
7th Edition
ISBN: 9781285853918
Author: H. Stephen Stoker
Publisher: Cengage Learning
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Chapter 16, Problem 16.98EP

(a)

Interpretation Introduction

Interpretation:

The IUPAC name for the ester formed when ethanoic acid and propyl alcohol react has to be assigned.

Concept Introduction:

Esters are prepared by condensation of carboxylic acid with an alcohol.  A molecule of water is lost on this reaction.  The reaction that takes place in producing esters is known as esterification reaction.

Esterification reaction is the one in which the carboxylic acid is condensed with an alcohol (or phenol) in presence of strong acid catalyst to produce ester.  The general reaction scheme can be given as,

General, Organic, and Biological Chemistry, Chapter 16, Problem 16.98EP , additional homework tip  1

For naming an ester, it can be structurally viewed in a way that contains an acyl group and an alkyl group.

General, Organic, and Biological Chemistry, Chapter 16, Problem 16.98EP , additional homework tip  2

Rules to obtain IUPAC name and common name for an ester:

  • Alkyl part appears first in the IUPAC name and it is followed by the acyl part of ester as a separate word.
  • Name of the alkyl part in the ester is just a name of R group.  It can be alkyl, cycloalkyl, or aryl group.
  • Acyl part present in the ester is named by considering the acid name and replacing the suffix “-ic acid” with “-ate”.
  • To obtain the common name the alkyl part name is the same while the acyl part name is derived from the common name of the acid by replacing the suffix “-ic acid” with “-ate”.

(a)

Expert Solution
Check Mark

Answer to Problem 16.98EP

IUPAC name of the ester formed is propyl ethanoate.

Explanation of Solution

Given carboxylic acid and alcohol structure is,

General, Organic, and Biological Chemistry, Chapter 16, Problem 16.98EP , additional homework tip  3

The reaction between two compounds that are shown above, result in the formation of ester.  The structure of the ester formed and the complete reaction can be given as shown below,

General, Organic, and Biological Chemistry, Chapter 16, Problem 16.98EP , additional homework tip  4

The structure of ester is,

General, Organic, and Biological Chemistry, Chapter 16, Problem 16.98EP , additional homework tip  5

The alkyl and acyl group is identified as shown below,

General, Organic, and Biological Chemistry, Chapter 16, Problem 16.98EP , additional homework tip  6

Alkyl group contains three carbon atoms.  Hence alkyl group is named as propyl.  The acyl group contains two carbon atoms.  The IUPAC name of carboxylic acid that contains three carbon atoms is ethanoic acid.  For naming acyl group in ester the suffix “-ic acid” is converted into “-ate”.  This gives the name of acyl part as ethanoate.  Therefore IUPAC name of the given ester is propyl ethanoate.

General, Organic, and Biological Chemistry, Chapter 16, Problem 16.98EP , additional homework tip  7

Conclusion

IUPAC name of the formed ester is assigned.

(b)

Interpretation Introduction

Interpretation:

The IUPAC name for the ester formed when acetic acid and 1-pentanol react has to be assigned.

Concept Introduction:

Esters are prepared by condensation of carboxylic acid with an alcohol.  A molecule of water is lost on this reaction.  The reaction that takes place in producing esters is known as esterification reaction.

Esterification reaction is the one in which the carboxylic acid is condensed with an alcohol (or phenol) in presence of strong acid catalyst to produce ester.  The general reaction scheme can be given as,

General, Organic, and Biological Chemistry, Chapter 16, Problem 16.98EP , additional homework tip  8

For naming an ester, it can be structurally viewed in a way that contains an acyl group and an alkyl group.

General, Organic, and Biological Chemistry, Chapter 16, Problem 16.98EP , additional homework tip  9

Rules to obtain IUPAC name and common name for an ester:

  • Alkyl part appears first in the IUPAC name and it is followed by the acyl part of ester as a separate word.
  • Name of the alkyl part in the ester is just a name of R group.  It can be alkyl, cycloalkyl, or aryl group.
  • Acyl part present in the ester is named by considering the acid name and replacing the suffix “-ic acid” with “-ate”.
  • To obtain the common name the alkyl part name is the same while the acyl part name is derived from the common name of the acid by replacing the suffix “-ic acid” with “-ate”.

(b)

Expert Solution
Check Mark

Answer to Problem 16.98EP

IUPAC name of the ester formed is pentyl ethanoate.

Explanation of Solution

Given carboxylic acid and alcohol structure is,

General, Organic, and Biological Chemistry, Chapter 16, Problem 16.98EP , additional homework tip  10

The reaction between two compounds that are shown above, result in the formation of ester.  The structure of the ester formed and the complete reaction can be given as shown below,

General, Organic, and Biological Chemistry, Chapter 16, Problem 16.98EP , additional homework tip  11

The structure of ester is,

General, Organic, and Biological Chemistry, Chapter 16, Problem 16.98EP , additional homework tip  12

The alkyl and acyl group is identified as shown below,

General, Organic, and Biological Chemistry, Chapter 16, Problem 16.98EP , additional homework tip  13

Alkyl group contains five carbon atoms.  Hence alkyl group is named as pentyl.  The acyl group contains two carbon atoms.  The IUPAC name of carboxylic acid that contains three carbon atoms is ethanoic acid.  For naming acyl group in ester the suffix “-ic acid” is converted into “-ate”.  This gives the name of acyl part as ethanoate.  Therefore IUPAC name of the given ester is pentyl ethanoate.

General, Organic, and Biological Chemistry, Chapter 16, Problem 16.98EP , additional homework tip  14

Conclusion

IUPAC name of the formed ester is assigned.

(c)

Interpretation Introduction

Interpretation:

The IUPAC name for the ester formed when acetic acid and 2-pentanol react has to be assigned.

Concept Introduction:

Esters are prepared by condensation of carboxylic acid with an alcohol.  A molecule of water is lost on this reaction.  The reaction that takes place in producing esters is known as esterification reaction.

Esterification reaction is the one in which the carboxylic acid is condensed with an alcohol (or phenol) in presence of strong acid catalyst to produce ester.  The general reaction scheme can be given as,

General, Organic, and Biological Chemistry, Chapter 16, Problem 16.98EP , additional homework tip  15

For naming an ester, it can be structurally viewed in a way that contains an acyl group and an alkyl group.

General, Organic, and Biological Chemistry, Chapter 16, Problem 16.98EP , additional homework tip  16

Rules to obtain IUPAC name and common name for an ester:

  • Alkyl part appears first in the IUPAC name and it is followed by the acyl part of ester as a separate word.
  • Name of the alkyl part in the ester is just a name of R group.  It can be alkyl, cycloalkyl, or aryl group.
  • Acyl part present in the ester is named by considering the acid name and replacing the suffix “-ic acid” with “-ate”.
  • To obtain the common name the alkyl part name is the same while the acyl part name is derived from the common name of the acid by replacing the suffix “-ic acid” with “-ate”.

(c)

Expert Solution
Check Mark

Answer to Problem 16.98EP

IUPAC name of the ester formed is 1-methylbutyl ethanoate.

Explanation of Solution

Given carboxylic acid and alcohol structure is,

General, Organic, and Biological Chemistry, Chapter 16, Problem 16.98EP , additional homework tip  17

The reaction between two compounds that are shown above, result in the formation of ester.  The structure of the ester formed and the complete reaction can be given as shown below,

General, Organic, and Biological Chemistry, Chapter 16, Problem 16.98EP , additional homework tip  18

The structure of ester is,

General, Organic, and Biological Chemistry, Chapter 16, Problem 16.98EP , additional homework tip  19

The alkyl and acyl group is identified as shown below,

General, Organic, and Biological Chemistry, Chapter 16, Problem 16.98EP , additional homework tip  20

Alkyl group contains five carbon atoms.  Four carbon in a long chain with a methyl group substituted in the first carbon atom.  Hence alkyl group is named as 1-methylbutyl.  The acyl group contains two carbon atoms.  The IUPAC name of carboxylic acid that contains three carbon atoms is ethanoic acid.  For naming acyl group in ester the suffix “-ic acid” is converted into “-ate”.  This gives the name of acyl part as ethanoate.  Therefore IUPAC name of the given ester is 1-methylbutyl ethanoate.

General, Organic, and Biological Chemistry, Chapter 16, Problem 16.98EP , additional homework tip  21

Conclusion

IUPAC name of the formed ester is assigned.

(d)

Interpretation Introduction

Interpretation:

The IUPAC name for the ester formed when ethanol and benzoic acid react has to be assigned.

Concept Introduction:

Esters are prepared by condensation of carboxylic acid with an alcohol.  A molecule of water is lost on this reaction.  The reaction that takes place in producing esters is known as esterification reaction.

Esterification reaction is the one in which the carboxylic acid is condensed with an alcohol (or phenol) in presence of strong acid catalyst to produce ester.  The general reaction scheme can be given as,

General, Organic, and Biological Chemistry, Chapter 16, Problem 16.98EP , additional homework tip  22

For naming an ester, it can be structurally viewed in a way that contains an acyl group and an alkyl group.

General, Organic, and Biological Chemistry, Chapter 16, Problem 16.98EP , additional homework tip  23

Rules to obtain IUPAC name and common name for an ester:

  • Alkyl part appears first in the IUPAC name and it is followed by the acyl part of ester as a separate word.
  • Name of the alkyl part in the ester is just a name of R group.  It can be alkyl, cycloalkyl, or aryl group.
  • Acyl part present in the ester is named by considering the acid name and replacing the suffix “-ic acid” with “-ate”.
  • To obtain the common name the alkyl part name is the same while the acyl part name is derived from the common name of the acid by replacing the suffix “-ic acid” with “-ate”.

(d)

Expert Solution
Check Mark

Answer to Problem 16.98EP

IUPAC name of the ester formed is ethyl benzoate.

Explanation of Solution

Given carboxylic acid and alcohol structure is,

General, Organic, and Biological Chemistry, Chapter 16, Problem 16.98EP , additional homework tip  24

The reaction between two compounds that are shown above, result in the formation of ester.  The structure of the ester formed and the complete reaction can be given as shown below,

General, Organic, and Biological Chemistry, Chapter 16, Problem 16.98EP , additional homework tip  25

The structure of ester is,

General, Organic, and Biological Chemistry, Chapter 16, Problem 16.98EP , additional homework tip  26

The alkyl and acyl group is identified as shown below,

General, Organic, and Biological Chemistry, Chapter 16, Problem 16.98EP , additional homework tip  27

Alkyl group contains only two carbon atoms.  Hence alkyl group is named as ethyl.  The acyl group contains a benzene ring structure.  The IUPAC name of carboxylic acid that contains benzene ring is benzoic acid.  For naming acyl group in ester the suffix “-ic acid” is converted into “-ate”.  This gives the name of acyl part as benzoate.  Therefore IUPAC name of the given ester is ethyl benzoate.

General, Organic, and Biological Chemistry, Chapter 16, Problem 16.98EP , additional homework tip  28

Conclusion

IUPAC name of the formed ester is assigned.

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Chapter 16 Solutions

General, Organic, and Biological Chemistry

Ch. 16.3 - Prob. 1QQCh. 16.3 - Prob. 2QQCh. 16.3 - Prob. 3QQCh. 16.4 - Prob. 1QQCh. 16.4 - Prob. 2QQCh. 16.4 - Prob. 3QQCh. 16.5 - Prob. 1QQCh. 16.5 - Prob. 2QQCh. 16.5 - Prob. 3QQCh. 16.6 - Prob. 1QQCh. 16.6 - Prob. 2QQCh. 16.7 - Prob. 1QQCh. 16.7 - Prob. 2QQCh. 16.7 - Prob. 3QQCh. 16.8 - Prob. 1QQCh. 16.8 - Prob. 2QQCh. 16.8 - Prob. 3QQCh. 16.8 - Prob. 4QQCh. 16.9 - Prob. 1QQCh. 16.9 - Prob. 2QQCh. 16.10 - Prob. 1QQCh. 16.10 - Prob. 2QQCh. 16.11 - Prob. 1QQCh. 16.11 - Prob. 2QQCh. 16.11 - Prob. 3QQCh. 16.12 - Prob. 1QQCh. 16.12 - Prob. 2QQCh. 16.12 - Prob. 3QQCh. 16.12 - Prob. 4QQCh. 16.13 - Prob. 1QQCh. 16.13 - Prob. 2QQCh. 16.14 - Prob. 1QQCh. 16.14 - Prob. 2QQCh. 16.14 - Prob. 3QQCh. 16.15 - Prob. 1QQCh. 16.15 - Prob. 2QQCh. 16.15 - Prob. 3QQCh. 16.16 - Prob. 1QQCh. 16.16 - Prob. 2QQCh. 16.16 - Prob. 3QQCh. 16.17 - Prob. 1QQCh. 16.17 - Prob. 2QQCh. 16.18 - Prob. 1QQCh. 16.18 - Prob. 2QQCh. 16.18 - Prob. 3QQCh. 16.19 - Prob. 1QQCh. 16.19 - Prob. 2QQCh. 16.19 - Prob. 3QQCh. 16.19 - Prob. 4QQCh. 16.20 - Prob. 1QQCh. 16.20 - Prob. 2QQCh. 16.20 - Prob. 3QQCh. 16.20 - Prob. 4QQCh. 16 - Prob. 16.1EPCh. 16 - Prob. 16.2EPCh. 16 - Prob. 16.3EPCh. 16 - Prob. 16.4EPCh. 16 - Prob. 16.5EPCh. 16 - Prob. 16.6EPCh. 16 - Prob. 16.7EPCh. 16 - Prob. 16.8EPCh. 16 - Prob. 16.9EPCh. 16 - Prob. 16.10EPCh. 16 - Prob. 16.11EPCh. 16 - Prob. 16.12EPCh. 16 - Prob. 16.13EPCh. 16 - Prob. 16.14EPCh. 16 - Prob. 16.15EPCh. 16 - Prob. 16.16EPCh. 16 - Prob. 16.17EPCh. 16 - Prob. 16.18EPCh. 16 - Prob. 16.19EPCh. 16 - Prob. 16.20EPCh. 16 - Prob. 16.21EPCh. 16 - Prob. 16.22EPCh. 16 - Prob. 16.23EPCh. 16 - Prob. 16.24EPCh. 16 - Prob. 16.25EPCh. 16 - Prob. 16.26EPCh. 16 - Prob. 16.27EPCh. 16 - Prob. 16.28EPCh. 16 - Prob. 16.29EPCh. 16 - Prob. 16.30EPCh. 16 - Prob. 16.31EPCh. 16 - Prob. 16.32EPCh. 16 - Prob. 16.33EPCh. 16 - Prob. 16.34EPCh. 16 - Prob. 16.35EPCh. 16 - Prob. 16.36EPCh. 16 - Prob. 16.37EPCh. 16 - Prob. 16.38EPCh. 16 - Prob. 16.39EPCh. 16 - Prob. 16.40EPCh. 16 - Determine the maximum number of hydrogen bonds...Ch. 16 - Prob. 16.42EPCh. 16 - Prob. 16.43EPCh. 16 - Prob. 16.44EPCh. 16 - Prob. 16.45EPCh. 16 - Prob. 16.46EPCh. 16 - Prob. 16.47EPCh. 16 - Prob. 16.48EPCh. 16 - Prob. 16.49EPCh. 16 - Prob. 16.50EPCh. 16 - Prob. 16.51EPCh. 16 - Prob. 16.52EPCh. 16 - Prob. 16.53EPCh. 16 - Prob. 16.54EPCh. 16 - Prob. 16.55EPCh. 16 - Prob. 16.56EPCh. 16 - Give the IUPAC name for each of the following...Ch. 16 - Give the IUPAC name for each of the following...Ch. 16 - Prob. 16.59EPCh. 16 - Give the common name for each of the carboxylic...Ch. 16 - Prob. 16.61EPCh. 16 - Write a chemical equation for the preparation of...Ch. 16 - Prob. 16.63EPCh. 16 - Prob. 16.64EPCh. 16 - Prob. 16.65EPCh. 16 - Prob. 16.66EPCh. 16 - Prob. 16.67EPCh. 16 - Prob. 16.68EPCh. 16 - Prob. 16.69EPCh. 16 - Prob. 16.70EPCh. 16 - Prob. 16.71EPCh. 16 - Prob. 16.72EPCh. 16 - Prob. 16.73EPCh. 16 - Prob. 16.74EPCh. 16 - Prob. 16.75EPCh. 16 - Prob. 16.76EPCh. 16 - Prob. 16.77EPCh. 16 - Prob. 16.78EPCh. 16 - Prob. 16.79EPCh. 16 - Prob. 16.80EPCh. 16 - Prob. 16.81EPCh. 16 - Prob. 16.82EPCh. 16 - Prob. 16.83EPCh. 16 - Prob. 16.84EPCh. 16 - Prob. 16.85EPCh. 16 - Prob. 16.86EPCh. 16 - Prob. 16.87EPCh. 16 - Prob. 16.88EPCh. 16 - Prob. 16.89EPCh. 16 - Prob. 16.90EPCh. 16 - Prob. 16.91EPCh. 16 - Prob. 16.92EPCh. 16 - Assign an IUPAC name to each of the following...Ch. 16 - Prob. 16.94EPCh. 16 - Prob. 16.95EPCh. 16 - Prob. 16.96EPCh. 16 - Prob. 16.97EPCh. 16 - Prob. 16.98EPCh. 16 - Prob. 16.99EPCh. 16 - Prob. 16.100EPCh. 16 - How many carbon atoms are present in a molecule of...Ch. 16 - Prob. 16.102EPCh. 16 - Prob. 16.103EPCh. 16 - Prob. 16.104EPCh. 16 - Prob. 16.105EPCh. 16 - Prob. 16.106EPCh. 16 - Prob. 16.107EPCh. 16 - Prob. 16.108EPCh. 16 - Prob. 16.109EPCh. 16 - Prob. 16.110EPCh. 16 - Prob. 16.111EPCh. 16 - Prob. 16.112EPCh. 16 - Prob. 16.113EPCh. 16 - Prob. 16.114EPCh. 16 - Prob. 16.115EPCh. 16 - Prob. 16.116EPCh. 16 - Prob. 16.117EPCh. 16 - Prob. 16.118EPCh. 16 - Prob. 16.119EPCh. 16 - Prob. 16.120EPCh. 16 - Prob. 16.121EPCh. 16 - Prob. 16.122EPCh. 16 - Prob. 16.123EPCh. 16 - Prob. 16.124EPCh. 16 - Prob. 16.125EPCh. 16 - Prob. 16.126EPCh. 16 - Prob. 16.127EPCh. 16 - Prob. 16.128EPCh. 16 - Prob. 16.129EPCh. 16 - Prob. 16.130EPCh. 16 - Prob. 16.131EPCh. 16 - Prob. 16.132EPCh. 16 - Prob. 16.133EPCh. 16 - Prob. 16.134EPCh. 16 - Prob. 16.135EPCh. 16 - Prob. 16.136EPCh. 16 - Prob. 16.137EPCh. 16 - Prob. 16.138EPCh. 16 - Prob. 16.139EPCh. 16 - Prob. 16.140EPCh. 16 - Prob. 16.141EPCh. 16 - Prob. 16.142EPCh. 16 - Prob. 16.143EPCh. 16 - Prob. 16.144EPCh. 16 - Prob. 16.145EPCh. 16 - Prob. 16.146EPCh. 16 - Prob. 16.147EPCh. 16 - Prob. 16.148EPCh. 16 - Draw a condensed structural formula for the...Ch. 16 - Prob. 16.150EPCh. 16 - Prob. 16.151EPCh. 16 - Prob. 16.152EPCh. 16 - Prob. 16.153EPCh. 16 - Prob. 16.154EPCh. 16 - Prob. 16.155EPCh. 16 - Prob. 16.156EPCh. 16 - Prob. 16.157EPCh. 16 - Prob. 16.158EPCh. 16 - Prob. 16.159EPCh. 16 - Prob. 16.160EPCh. 16 - Prob. 16.161EPCh. 16 - Prob. 16.162EPCh. 16 - Prob. 16.163EPCh. 16 - Prob. 16.164EP
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