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Organic And Biological Chemistry

7th Edition
STOKER + 1 other
ISBN: 9781305081079

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Section
BuyFindarrow_forward

Organic And Biological Chemistry

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

Assign both an IUPAC name and a common name to each of the following thioethers.

  1. a. CH3—CH2—S—CH3

Chapter 3, Problem 3.143EP, Assign both an IUPAC name and a common name to each of the following thioethers. a. CH3CH2SCH3 , example  1

Chapter 3, Problem 3.143EP, Assign both an IUPAC name and a common name to each of the following thioethers. a. CH3CH2SCH3 , example  2

Chapter 3, Problem 3.143EP, Assign both an IUPAC name and a common name to each of the following thioethers. a. CH3CH2SCH3 , example  3

(a)

Interpretation Introduction

Interpretation:

The IUPAC name and common name for the given thioether has to be assigned.

Concept Introduction:

Any organic molecule can be named by using certain rules given by IUPAC (International Union for Pure and applied chemistry).  IUPAC name consists of three parts in major namely Prefix suffix and root word.

Prefix represents the substituent present in the molecule and its position in the root name.

Suffix denotes the presence of functional group if any in the molecule.  It can be an alkene, alkyne, alcohol, carboxylic acid, alcohol etc.

Root word represents the longest continuous carbon skeleton of the organic molecule.

IUPAC rules for naming thioether:

  • ✓ The base name is found from the longest carbon chain present in thioether.
  • ✓ The suffix –thio has to be added in order to obtain the alkylthio group name.  For example, ethyl becomes as ethylthio, methyl becomes as methylthio etc.
  • ✓ Alkylthio name has to be placed first with the number (carbon atom to which the alkykthio group is attached) followed by the base name.

Rules for assigning common names to thioether:

For obtaining common name for thioether, two rules are applicable, one for symmetrical ethers and one for unsymmetrical ethers.

  • ✓ For unsymmetrical thioethers, the two hydrocarbon groups that is attached to the oxygen atom is arranged in an alphabetical order and the word sulfide is added.  The words are separated by a space.  These names have three words with space between them.
  • ✓ For symmetrical ethers, prefix di- is used.  Then the word sulfide is added with a space between the two words.  These names have two words with space between them.
Explanation

Given structure of compound is shown below,

First step is to identify the longest carbon chain.  In this case it is a two carbon chain.  Hence, the base name is ethane.

Next step is to identify the alkylthio group.  In the given thioether, the alkylthio group is found to be methylthio as it contains only one carbon atom.

Alkylthio name is placed before the base name with the appropriate number that gives information about to which carbon atom the alkylthio group is attached...

(b)

Interpretation Introduction

Interpretation:

The IUPAC name and common name for the given thioether has to be assigned.

Concept Introduction:

Any organic molecule can be named by using certain rules given by IUPAC (International Union for Pure and applied chemistry).  IUPAC name consists of three parts in major namely Prefix suffix and root word.

Prefix represents the substituent present in the molecule and its position in the root name.

Suffix denotes the presence of functional group if any in the molecule.  It can be an alkene, alkyne, alcohol, carboxylic acid, alcohol etc.

Root word represents the longest continuous carbon skeleton of the organic molecule.

IUPAC rules for naming thioether:

  • ✓ The base name is found from the longest carbon chain present in thioether.
  • ✓ The suffix –thio has to be added in order to obtain the alkylthio group name.  For example, ethyl becomes as ethylthio, methyl becomes as methylthio etc.
  • ✓ Alkylthio name has to be placed first with the number (carbon atom to which the alkykthio group is attached) followed by the base name.

Rules for assigning common names to thioether:

For obtaining common name for thioether, two rules are applicable, one for symmetrical ethers and one for unsymmetrical ethers.

  • ✓ For unsymmetrical thioethers, the two hydrocarbon groups that is attached to the oxygen atom is arranged in an alphabetical order and the word sulfide is added.  The words are separated by a space.  These names have three words with space between them.
  • ✓ For symmetrical ethers, prefix di- is used.  Then the word sulfide is added with a space between the two words.  These names have two words with space between them.

(c)

Interpretation Introduction

Interpretation:

The IUPAC name and common name for the given thioether has to be assigned.

Concept Introduction:

Any organic molecule can be named by using certain rules given by IUPAC (International Union for Pure and applied chemistry).  IUPAC name consists of three parts in major namely Prefix suffix and root word.

Prefix represents the substituent present in the molecule and its position in the root name.

Suffix denotes the presence of functional group if any in the molecule.  It can be an alkene, alkyne, alcohol, carboxylic acid, alcohol etc.

Root word represents the longest continuous carbon skeleton of the organic molecule.

IUPAC rules for naming thioether:

  • ✓ The base name is found from the longest carbon chain present in thioether.
  • ✓ The suffix –thio has to be added in order to obtain the alkylthio group name.  For example, ethyl becomes as ethylthio, methyl becomes as methylthio etc.
  • ✓ Alkylthio name has to be placed first with the number (carbon atom to which the alkykthio group is attached) followed by the base name.

Rules for assigning common names to thioether:

For obtaining common name for thioether, two rules are applicable, one for symmetrical ethers and one for unsymmetrical ethers.

  • ✓ For unsymmetrical thioethers, the two hydrocarbon groups that is attached to the oxygen atom is arranged in an alphabetical order and the word sulfide is added.  The words are separated by a space.  These names have three words with space between them.
  • ✓ For symmetrical ethers, prefix di- is used.  Then the word sulfide is added with a space between the two words.  These names have two words with space between them.

(d)

Interpretation Introduction

Interpretation:

The IUPAC name and common name for the given thioether has to be assigned.

Concept Introduction:

Any organic molecule can be named by using certain rules given by IUPAC (International Union for Pure and applied chemistry).  IUPAC name consists of three parts in major namely Prefix suffix and root word.

Prefix represents the substituent present in the molecule and its position in the root name.

Suffix denotes the presence of functional group if any in the molecule.  It can be an alkene, alkyne, alcohol, carboxylic acid, alcohol etc.

Root word represents the longest continuous carbon skeleton of the organic molecule.

IUPAC rules for naming thioether:

  • ✓ The base name is found from the longest carbon chain present in thioether.
  • ✓ The suffix –thio has to be added in order to obtain the alkylthio group name.  For example, ethyl becomes as ethylthio, methyl becomes as methylthio etc.
  • ✓ Alkylthio name has to be placed first with the number (carbon atom to which the alkykthio group is attached) followed by the base name.

Rules for assigning common names to thioether:

For obtaining common name for thioether, two rules are applicable, one for symmetrical ethers and one for unsymmetrical ethers.

  • ✓ For unsymmetrical thioethers, the two hydrocarbon groups that is attached to the oxygen atom is arranged in an alphabetical order and the word sulfide is added.  The words are separated by a space.  These names have three words with space between them.
  • ✓ For symmetrical ethers, prefix di- is used.  Then the word sulfide is added with a space between the two words.  These names have two words with space between them.

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Sect-3.4 P-2QQSect-3.4 P-3QQSect-3.5 P-1QQSect-3.5 P-2QQSect-3.5 P-3QQSect-3.5 P-4QQSect-3.6 P-1QQSect-3.6 P-2QQSect-3.6 P-3QQSect-3.7 P-1QQSect-3.7 P-2QQSect-3.8 P-1QQSect-3.8 P-2QQSect-3.9 P-1QQSect-3.9 P-2QQSect-3.9 P-3QQSect-3.9 P-4QQSect-3.9 P-5QQSect-3.9 P-6QQSect-3.10 P-1QQSect-3.10 P-2QQSect-3.11 P-1QQSect-3.11 P-2QQSect-3.11 P-3QQSect-3.12 P-1QQSect-3.12 P-2QQSect-3.13 P-1QQSect-3.13 P-2QQSect-3.13 P-3QQSect-3.14 P-1QQSect-3.14 P-2QQSect-3.14 P-3QQSect-3.15 P-1QQSect-3.15 P-2QQSect-3.15 P-3QQSect-3.15 P-4QQSect-3.16 P-1QQSect-3.16 P-2QQSect-3.17 P-1QQSect-3.17 P-2QQSect-3.17 P-3QQSect-3.18 P-1QQSect-3.18 P-2QQSect-3.18 P-3QQSect-3.19 P-1QQSect-3.19 P-2QQSect-3.20 P-1QQSect-3.20 P-2QQSect-3.20 P-3QQSect-3.20 P-4QQSect-3.20 P-5QQSect-3.21 P-1QQSect-3.21 P-2QQSect-3.21 P-3QQSect-3.21 P-4QQSect-3.21 P-5QQCh-3 P-3.1EPCh-3 P-3.2EPCh-3 P-3.3EPCh-3 P-3.4EPCh-3 P-3.5EPCh-3 P-3.6EPCh-3 P-3.7EPCh-3 P-3.8EPCh-3 P-3.9EPCh-3 P-3.10EPCh-3 P-3.11EPCh-3 P-3.12EPCh-3 P-3.13EPCh-3 P-3.14EPCh-3 P-3.15EPCh-3 P-3.16EPCh-3 P-3.17EPCh-3 P-3.18EPCh-3 P-3.19EPCh-3 P-3.20EPCh-3 P-3.21EPCh-3 P-3.22EPCh-3 P-3.23EPCh-3 P-3.24EPCh-3 P-3.25EPCh-3 P-3.26EPCh-3 P-3.27EPCh-3 P-3.28EPCh-3 P-3.29EPCh-3 P-3.30EPCh-3 P-3.31EPCh-3 P-3.32EPCh-3 P-3.33EPCh-3 P-3.34EPCh-3 P-3.35EPCh-3 P-3.36EPCh-3 P-3.37EPCh-3 P-3.38EPCh-3 P-3.39EPCh-3 P-3.40EPCh-3 P-3.41EPCh-3 P-3.42EPCh-3 P-3.43EPCh-3 P-3.44EPCh-3 P-3.45EPCh-3 P-3.46EPCh-3 P-3.47EPCh-3 P-3.48EPCh-3 P-3.49EPCh-3 P-3.50EPCh-3 P-3.51EPCh-3 P-3.52EPCh-3 P-3.53EPCh-3 P-3.54EPCh-3 P-3.55EPCh-3 P-3.56EPCh-3 P-3.57EPCh-3 P-3.58EPCh-3 P-3.59EPCh-3 P-3.60EPCh-3 P-3.61EPCh-3 P-3.62EPCh-3 P-3.63EPCh-3 P-3.64EPCh-3 P-3.65EPCh-3 P-3.66EPCh-3 P-3.67EPCh-3 P-3.68EPCh-3 P-3.69EPCh-3 P-3.70EPCh-3 P-3.71EPCh-3 P-3.72EPCh-3 P-3.73EPCh-3 P-3.74EPCh-3 P-3.75EPCh-3 P-3.76EPCh-3 P-3.77EPCh-3 P-3.78EPCh-3 P-3.79EPCh-3 P-3.80EPCh-3 P-3.81EPCh-3 P-3.82EPCh-3 P-3.83EPCh-3 P-3.84EPCh-3 P-3.85EPCh-3 P-3.86EPCh-3 P-3.87EPCh-3 P-3.88EPCh-3 P-3.89EPCh-3 P-3.90EPCh-3 P-3.91EPCh-3 P-3.92EPCh-3 P-3.93EPCh-3 P-3.94EPCh-3 P-3.95EPCh-3 P-3.96EPCh-3 P-3.97EPCh-3 P-3.98EPCh-3 P-3.99EPCh-3 P-3.100EPCh-3 P-3.101EPCh-3 P-3.102EPCh-3 P-3.103EPCh-3 P-3.104EPCh-3 P-3.105EPCh-3 P-3.106EPCh-3 P-3.107EPCh-3 P-3.108EPCh-3 P-3.109EPCh-3 P-3.110EPCh-3 P-3.111EPCh-3 P-3.112EPCh-3 P-3.113EPCh-3 P-3.114EPCh-3 P-3.115EPCh-3 P-3.116EPCh-3 P-3.117EPCh-3 P-3.118EPCh-3 P-3.119EPCh-3 P-3.120EPCh-3 P-3.121EPCh-3 P-3.122EPCh-3 P-3.123EPCh-3 P-3.124EPCh-3 P-3.125EPCh-3 P-3.126EPCh-3 P-3.127EPCh-3 P-3.128EPCh-3 P-3.129EPCh-3 P-3.130EPCh-3 P-3.131EPCh-3 P-3.132EPCh-3 P-3.133EPCh-3 P-3.134EPCh-3 P-3.135EPCh-3 P-3.136EPCh-3 P-3.137EPCh-3 P-3.138EPCh-3 P-3.139EPCh-3 P-3.140EPCh-3 P-3.141EPCh-3 P-3.142EPCh-3 P-3.143EPCh-3 P-3.144EPCh-3 P-3.145EPCh-3 P-3.146EP

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