Organic Chemistry
Organic Chemistry
2nd Edition
ISBN: 9781118452288
Author: David R. Klein
Publisher: WILEY
Question
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Chapter 4, Problem 40PP

(a)

Interpretation Introduction

Interpretation:

The name of each substituent in the given molecule should be identified.

Concept introduction:

Substituent chains are the group of molecules or atoms attached to a parent chain of a compound. Naming of the substituent chain is same as that of name of parent chain.

Name for the alkyl substituent chain depends on the number of carbon atoms present in the substituent chain. The suffix for the substituent chain is ‘yl’ instead of the parent name suffix ‘ane’.

Number of carbon atoms Name of alkyl substituent
1 methyl
2 ethyl
3 propyl
4 butyl
5 pentyl
6 hexyl
7 heptyl
8 octyl
9 nonyl

(c)

Interpretation Introduction

Interpretation:

The name of each substituent in the given molecule should be identified.

Concept introduction:

Substituent chains are the group of molecules or atoms attached to a parent chain of a compound. Naming of the substituent chain is same as that of name of parent chain.

Name for the alkyl substituent chain depends on the number of carbon atoms present in the substituent chain. The suffix for the substituent chain is ‘yl’ instead of the parent name suffix ‘ane’.

Number of carbon atoms Name of alkyl substituent
1 methyl
2 ethyl
3 propyl
4 butyl
5 pentyl
6 hexyl
7 heptyl
8 octyl
9 nonyl

(b)

Interpretation Introduction

Interpretation:

The common name and IUPAC name of each substituent in the given molecule should be identified.

Concept introduction:

Substituent chains are the attached chains to a parent chain of a compound. Branched alkyl substituents are called complex substituent. Naming of the substituent chain is same as that of name of parent chain.

There are two types of naming the substituents, common name and IUPAC name.

The common name is the conventional name of the substituent.

IUPAC name is a systematic name.. The principles of IUPAC name of a substituent is same as that of alkane parent chain except the suffix where ‘yl’ is used instead of ‘ane’.

  • Identify the longest chain and give name by counting the number of carbon atoms. (Refer below mentioned table)
  • Number the longest chain, such that the substituents get lowest number.
  • For substituents the suffix will be ‘yl’. (Example: methyl, ethyl, etc.)
  • Substituents are written first in IUPAC name with their respective carbon number and then the parent chain is written.
Number of carbon atoms Name of substituent alkane
1 meth
2 eth
3 prop
4 but
5 pent
6 hex
7 hept
8 oct
9 non

(d)

Interpretation Introduction

Interpretation:

The common name and IUPAC name of each substituent in the given molecule should be identified.

Concept introduction:

Substituent chains are the attached chains to a parent chain of a compound. Branched alkyl substituents are called complex substituent. Naming of the substituent chain is same as that of name of parent chain.

There are two types of naming the substituents, common name and IUPAC name.

The common name is the conventional name of the substituent.

IUPAC name is a systematic name.. The principles of IUPAC name of a substituent is same as that of alkane parent chain except the suffix where ‘yl’ is used instead of ‘ane’.

  • Identify the longest chain and give name by counting the number of carbon atoms. (Refer below mentioned table)
  • Number the longest chain, such that the substituents get lowest number.
  • For substituents the suffix will be ‘yl’. (Example: methyl, ethyl, etc.)
  • Substituents are written first in IUPAC name with their respective carbon number and then the parent chain is written.
Number of carbon atoms Name of substituent alkane
1 meth
2 eth
3 prop
4 but
5 pent
6 hex
7 hept
8 oct
9 non

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Chapter 4 Solutions

Organic Chemistry

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