
Concept explainers
Give the IUPAC name for each compounds.
a. c.
e.
g.
b. d.
f.
h.

(a)
Interpretation: The IUPAC name of the given compound is to be stated.
Concept introduction: IUPAC nomenclature is a systematic way of naming the organic compounds. The basic principles of IUPAC naming for benzene derivatives are:
1. The compound consists of benzene ring is named as substituent followed by benzene.
2. When the ring is mono-substituted, then there is no need of numbering.
3. When the ring is substituted with same substituents, then numbering to one substituent is given and for other substituent, numbering proceed from clockwise or anticlockwise such that it gets lower number.
4. When the ring is substituted with different substituents, then the numbering is done according to priority.
5. Substituents on benzene ring is also indicated using ortho, meta, para prefix. The prefix ortho is used when substituents are on adjacent carbon, meta is used when substituents are separated by one carbon atom, para is used when substituents are across each other in benzene ring.
Answer to Problem 17.27P
The IUPAC name of the given compound is
Explanation of Solution
The given compound is,
Figure 1
The parent ring is benzene. The substituent attached to the benzene ring is sec-butyl. Therefore, the IUPAC name of the given compound is
The IUPAC name of the given compound is

(b)
Interpretation: The IUPAC name of the given compound is to be stated.
Concept introduction: IUPAC nomenclature is a systematic way of naming the organic compounds. The basic principles of IUPAC naming for benzene derivatives are:
1. The compound consists of benzene ring is named as substituent followed by benzene.
2. When the ring is mono-substituted, then there is no need of numbering.
3. When the ring is substituted with same substituents, then numbering to one substituent is given and for other substituent, numbering proceed from clockwise or anticlockwise such that it gets lower number.
4. When the ring is substituted with different substituents, then the numbering is done according to priority.
5. Substituents on benzene ring is also indicated using ortho, meta, para prefix. The prefix ortho is used when substituents are on adjacent carbon, meta is used when substituents are separated by one carbon atom, para is used when substituents are across each other in benzene ring.
Answer to Problem 17.27P
The IUPAC name of the given compound is
Explanation of Solution
The given compound is,
Figure 2
The parent ring is benzene. Chlorine atom is present on first carbon atom and ethyl group is present on third carbon atom. The two substituents are separated by one carbon atom. The IUPAC name of the given compound is
The IUPAC name of the given compound is

(c)
Interpretation: The IUPAC name of the given compound is to be stated.
Concept introduction: IUPAC nomenclature is a systematic way of naming the organic compounds. The basic principles of IUPAC naming for benzene derivatives are:
1. The compound consists of benzene ring is named as substituent followed by benzene.
2. When the ring is mono-substituted, then there is no need of numbering.
3. When the ring is substituted with same substituents, then numbering to one substituent is given and for other substituent, numbering proceed from clockwise or anticlockwise such that it gets lower number.
4. When the ring is substituted with different substituents, then the numbering is done according to priority.
5. Substituents on benzene ring is also indicated using ortho, meta, para prefix. The prefix ortho is used when substituents are on adjacent carbon, meta is used when substituents are separated by one carbon atom, para is used when substituents are across each other in benzene ring.
Answer to Problem 17.27P
The IUPAC name of the given compound is
Explanation of Solution
The given compound is,
Figure 3
The parent ring is benzene. Chlorine atom is present on first carbon atom and methyl group is present on fourth carbon atom. The two substituents are across each other in benzene ring. The IUPAC name of the given compound is
The IUPAC name of the given compound is

(d)
Interpretation: The IUPAC name of the given compound is to be stated.
Concept introduction: IUPAC nomenclature is a systematic way of naming the organic compounds. The basic principles of IUPAC naming for benzene derivatives are:
1. The compound consists of benzene ring is named as substituent followed by benzene.
2. When the ring is mono-substituted, then there is no need of numbering.
3. When the ring is substituted with same substituents, then numbering to one substituent is given and for other substituent, numbering proceed from clockwise or anticlockwise such that it gets lower number.
4. When the ring is substituted with different substituents, then the numbering is done according to priority.
5. Substituents on benzene ring is also indicated using ortho, meta, para prefix. The prefix ortho is used when substituents are on adjacent carbon, meta is used when substituents are separated by one carbon atom, para is used when substituents are across each other in benzene ring.
Answer to Problem 17.27P
The IUPAC name of the given compound is
Explanation of Solution
The given compound is,
Figure 4
The parent ring is aniline. Chlorine atom and amine group are adjacent to each other in benzene ring. The IUPAC name of the given compound is
The IUPAC name of the given compound is

(e)
Interpretation: The IUPAC name of the given compound is to be stated.
Concept introduction: IUPAC nomenclature is a systematic way of naming the organic compounds. The basic principles of IUPAC naming for a benzene derivatives are:
1. The compound consists of benzene ring is named as substituent followed by benzene.
2. When the ring is mono-substituted, then there is no need of numbering.
3. When the ring is substituted with same substituents, then numbering to one substituent is given and for other substituent, numbering proceed from clockwise or anticlockwise such that it gets lower number.
4. When the ring is substituted with different substituents, then the numbering is done according to priority.
5. Substituents on benzene ring is also indicated using ortho, meta, para prefix. The prefix ortho is used when substituents are on adjacent carbon, meta is used when substituents are separated by one carbon atom, para is used when substituents are across each other in benzene ring.
Answer to Problem 17.27P
The IUPAC name of the given compound is
Explanation of Solution
The given compound is,
Figure 5
The parent ring is aniline. Two bromine atoms are present on second and third position. When same substituents are present then prefix depends on number of substituents are used. The IUPAC name of the given compound is
The IUPAC name of the given compound is

(f)
Interpretation: The IUPAC name of the given compound is to be stated.
Concept introduction: IUPAC nomenclature is a systematic way of naming the organic compounds. The basic principles of IUPAC naming for a benzene derivatives are:
1. The compound consists of benzene ring is named as substituent followed by benzene.
2. When the ring is mono-substituted, then there is no need of numbering.
3. When the ring is substituted with same substituents, then numbering to one substituent is given and for other substituent, numbering proceed from clockwise or anticlockwise such that it gets lower number.
4. When the ring is substituted with different substituents, then the numbering is done according to priority.
5. Substituents on benzene ring is also indicated using ortho, meta, para prefix. The prefix ortho is used when substituents are on adjacent carbon, meta is used when substituents are separated by one carbon atom, para is used when substituents are across each other in benzene ring.
Answer to Problem 17.27P
The IUPAC name of the given compound is
Explanation of Solution
The given compound is,
Figure 6
The parent ring is phenol. Two nitro groups are present on second and fifth position. When same substituents are present then prefix depends on number of substituents are used. The IUPAC name of the given compound is
The IUPAC name of the given compound is

(g)
Interpretation: The IUPAC name of the given compound is to be stated.
Concept introduction: IUPAC nomenclature is a systematic way of naming the organic compounds. The basic principles of IUPAC naming for a benzene derivatives are:
1. The compound consists of benzene ring is named as substituent followed by benzene.
2. When the ring is mono-substituted, then there is no need of numbering.
3. When the ring is substituted with same substituents, then numbering to one substituent is given and for other substituent, numbering proceed from clockwise or anticlockwise such that it gets lower number.
4. When the ring is substituted with different substituents, then the numbering is done according to priority.
5. Substituents on benzene ring is also indicated using ortho, meta, para prefix. The prefix ortho is used when substituents are on adjacent carbon, meta is used when substituents are separated by one carbon atom, para is used when substituents are across each other in benzene ring.
Answer to Problem 17.27P
The IUPAC name of the given compound is
Explanation of Solution
The given compound is,
Figure 7
The parent ring is benzene. Ethyl group is present on second carbon atom, isopropyl group on third carbon atom and propyl group on fifth position. When same substituents are present then prefix depends on number of substituents are used. The IUPAC name of the given compound is
The IUPAC name of the given compound is

(h)
Interpretation: The IUPAC name of the given compound is to be stated.
Concept introduction: IUPAC nomenclature is a systematic way of naming the organic compounds. The basic principles of IUPAC naming for a cycloalkane are:
1. The cycloalkane is named after its parent hydrocarbon chain with a prefix cyclo.
2. When the ring is mono-substituted then there is no need of numbering.
3. When the ring is substituted with same substituents then numbering to one substituent is given and for other substituent numbering proceed from clockwise or anticlockwise such that it gets lower number.
4. When the ring is substituted with different substituents, then the numbering is done according to priority.
5. When alkyl chain has more carbon atoms than the cycloalkane then, the substituent is named as cycloalkyl group.
Answer to Problem 17.27P
The IUPAC name of the given compound is
Explanation of Solution
The given compound is,
Figure 8
The number of carbon atoms in ring is six. Hence, its parent cycloalkane is cyclohexane.. Bromine atom is present on first carbon atom and phenyl group is present on second carbon atom. Both groups points in the same direction. The IUPAC name of the given compound is
The IUPAC name of the given compound is
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Chapter 17 Solutions
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