Concept explainers
(a)
Interpretation:
The given phenol has to be named.
Concept Introduction:
When one hydrogen atoms are replaced by a hydroxyl group in benzene is known as phenol. If the other hydrogen atoms present in phenol are replaced by other atoms or groups are known as phenol derivatives.
Phenol derivative with one substituent:
IUPAC system of naming phenol derivative considers phenol to be a part of main name. The numbering is given in a way that the substituent gets the least numbering possible.
Ortho- means disubstitution in 1,2
Meta- means disubstitution in 1,3
Para- means disubstitution in 1,4
In all the above derivatives of phenol, the first position is occupied by hydroxyl group.
Phenol derivatives with two or more substituents:
More than two groups are present in the benzene ring means, their positions are numbered. The numbering is always done in a way that the carbon atom bearing substituent gets the lowest numbering possible. If there is a choice of numbering system, then the group that comes alphabetically first is given the lowest number.
(b)
Interpretation:
The given phenol has to be named.
Concept Introduction:
When one hydrogen atoms are replaced by a hydroxyl group in benzene is known as phenol. If the other hydrogen atoms present in phenol are replaced by other atoms or groups are known as phenol derivatives.
Phenol derivative with one substituent:
IUPAC system of naming phenol derivative considers phenol to be a part of main name. The numbering is given in a way that the substituent gets the least numbering possible.
Ortho- means disubstitution in 1,2
Meta- means disubstitution in 1,3
Para- means disubstitution in 1,4
In all the above derivatives of phenol, the first position is occupied by hydroxyl group.
Phenol derivatives with two or more substituents:
More than two groups are present in the benzene ring means, their positions are numbered. The numbering is always done in a way that the carbon atom bearing substituent gets the lowest numbering possible. If there is a choice of numbering system, then the group that comes alphabetically first is given the lowest number.
(c)
Interpretation:
The given phenol has to be named.
Concept Introduction:
When one hydrogen atoms are replaced by a hydroxyl group in benzene is known as phenol. If the other hydrogen atoms present in phenol are replaced by other atoms or groups are known as phenol derivatives.
Phenol derivative with one substituent:
IUPAC system of naming phenol derivative considers phenol to be a part of main name. The numbering is given in a way that the substituent gets the least numbering possible.
Ortho- means disubstitution in 1,2
Meta- means disubstitution in 1,3
Para- means disubstitution in 1,4
In all the above derivatives of phenol, the first position is occupied by hydroxyl group.
Phenol derivatives with two or more substituents:
More than two groups are present in the benzene ring means, their positions are numbered. The numbering is always done in a way that the carbon atom bearing substituent gets the lowest numbering possible. If there is a choice of numbering system, then the group that comes alphabetically first is given the lowest number.
(d)
Interpretation:
The given phenol has to be named.
Concept Introduction:
When one hydrogen atoms are replaced by a hydroxyl group in benzene is known as phenol. If the other hydrogen atoms present in phenol are replaced by other atoms or groups are known as phenol derivatives.
Phenol derivative with one substituent:
IUPAC system of naming phenol derivative considers phenol to be a part of main name. The numbering is given in a way that the substituent gets the least numbering possible.
Ortho- means disubstitution in 1,2
Meta- means disubstitution in 1,3
Para- means disubstitution in 1,4
In all the above derivatives of phenol, the first position is occupied by hydroxyl group.
Phenol derivatives with two or more substituents:
More than two groups are present in the benzene ring means, their positions are numbered. The numbering is always done in a way that the carbon atom bearing substituent gets the lowest numbering possible. If there is a choice of numbering system, then the group that comes alphabetically first is given the lowest number.
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Chapter 14 Solutions
GENERAL,ORGANIC,+BIO.CHEM.-MINDTAP
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- Which class of compounds shows H-bonding even more than in alcohols? aldehydes carboxylic acids phenols ethersarrow_forwardGive all proper names for the following compound. Be sure to include both IUPAC and common names, if any. benzene benzenesulfonic acid benzaldehyde benzonitrile benzoic acid toluenearrow_forwardThe following compound falls under what category of compounds? R C-0-R ether carboxylic acid ketone ester O aldehyde Warrow_forward
- IUPAC name for the following compound?arrow_forwardWhat is the molecular formula for 1-propanol?arrow_forwardSuggest a simple chemical test that will differentiate between the following pairs of compounds. Write equations for the reactions involved. ▪ phenol and isopentyl alcohol ▪ tert-butyl alcohol and isobutyl alcohol ▪ neopentyl alcohol and ether ▪ sec-butyl alcohol and neopentyl alcohol ▪ propene and 2-butanolarrow_forward
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