Concept explainers
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(a)
Interpretation: The correct name should be given for the incorrectly named organic compound 2,4,6-tribromobenzene.
Concept Introduction:
Nomenclature of benzene and its derivative compounds:
Monosubstituted alkylbenzenes are named as derivatives of benzene; for example butylbenzene.
When one of the special case compounds (example aniline, toluene, phenol) is involved, the compound is named as a derivative of the special compound.
Nomenclature of benzene compound with more substituents,
If one of the substituents imparts a special name, name the molecule as a derivative of that parent.
If none of the substituents imparts a special name, number the substituents to give the smallest set of numbers, and list them in alphabetical order before the ending “benzene”.
Example:
To indicate relative position on a benzene ring, three terms are mainly used and they are,
- (1) Ortho-(o): On adjacent carbons (1,2)
- (2) Meta-(m): Separated by one carbon (1,3)
- (3) Para-(p): Separated by two carbons (1,4)
(b)
Interpretation: The correct name should be given for the incorrectly named organic compound 3-hydroxynitrobenzene.
Concept introduction:
Nomenclature of benzene and its derivative compounds:
Monosubstituted alkylbenzenes are named as derivatives of benzene; for example butylbenzene.
When one of the special case compounds (example aniline, toluene, phenol…) is involved, the compound is named as a derivative of the special compound.
Nomenclature of benzene compound with more substituents,
If one of the substituents imparts a special name, name the molecule as a derivative of that parent.
If none of the substituents imparts a special name, number the substituents to give the smallest set of numbers, and list them in alphabetical order before the ending “benzene”.
Example:
To indicate relative position on a benzene ring, three terms are mainly used and they are,
- (1) Ortho-(o): On adjacent carbons (1,2)
- (2) Meta-(m): Separated by one carbon (1,3)
- (3) Para-(p): Separated by two carbons (1,4)
(c)
Interpretation: The correct name should be given for the incorrectly named organic compound
Concept introduction:
Nomenclature of benzene and its derivative compounds:
Monosubstituted alkylbenzenes are named as derivatives of benzene; for example butylbenzene.
When one of the special case compounds (example aniline, toluene, phenol…) is involved, the compound is named as a derivative of the special compound.
Nomenclature of benzene compound with more substituents,
If one of the substituents imparts a special name, name the molecule as a derivative of that parent.
If none of the substituents imparts a special name, number the substituents to give the smallest set of numbers, and list them in alphabetical order before the ending “benzene”.
Example:
To indicate relative position on a benzene ring, three terms are mainly used and they are,
- (1) Ortho-(o): On adjacent carbons (1,2)
- (2) Meta-(m): Separated by one carbon (1,3)
- (3) Para-(p): Separated by two carbons (1,4)
(d)
Interpretation: The correct name should be given for the incorrectly named organic compound 1,6-dichlorobenzene.
Concept introduction:
Nomenclature of benzene and its derivative compounds:
Monosubstituted alkylbenzenes are named as derivatives of benzene; for example butylbenzene.
When one of the special case compounds (example aniline, toluene, phenol…) is involved, the compound is named as a derivative of the special compound.
Nomenclature of benzene compound with more substituents,
If one of the substituents imparts a special name, name the molecule as a derivative of that parent.
If none of the substituents imparts a special name, number the substituents to give the smallest set of numbers, and list them in alphabetical order before the ending “benzene”.
Example:
To indicate relative position on a benzene ring, three terms are mainly used and they are,
- (1) Ortho-(o): On adjacent carbons (1,2)
- (2) Meta-(m): Separated by one carbon (1,3)
- (3) Para-(p): Separated by two carbons (1,4)
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Chapter 19 Solutions
EBK ORGANIC CHEMISTRY
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