Question:
The IUPAC name of the following compound is
The IUPAC name of the following compound is
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In aromatic compounds containing \(-CN\), the parent name becomes benzonitrile because nitrile has higher priority than alcohols and halogens.
Updated On: Jun 22, 2026
- 1-Bromo-2-hydroxybenzonitrile
- 2-Bromo-3-cyanophenol
- 2-Bromo-3-hydroxybenzonitrile
- 3-Hydroxy-2-bromobenzonitrile
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The Correct Option is C
Solution and Explanation
Step 1: Identify the principal functional group.
The compound contains: \[ -Br,\ -OH,\ -CN \] Among these, \[ -CN \] has the highest priority according to IUPAC nomenclature.
Therefore, the parent compound is benzonitrile The carbon attached to \[ -CN \] is numbered as carbon \(1\).
Step 2: Number the substituents.
From the structure: \[ -Br \] is attached to carbon \(2\).
\[ -OH \] is attached to carbon \(3\).
Thus, the substituents are: \[ 2-\text{Bromo} \] and \[ 3-\text{Hydroxy} \]
Step 3: Arrange substituents alphabetically.
Substituents are written in alphabetical order: Bromo before Hydroxy Hence, the IUPAC name becomes: \[ 2-\text{Bromo}-3-\text{hydroxybenzonitrile} \]
Step 4: Final conclusion.
Therefore, the correct IUPAC name is \[ \boxed{2\text{-Bromo-3-hydroxybenzonitrile}} \]
The compound contains: \[ -Br,\ -OH,\ -CN \] Among these, \[ -CN \] has the highest priority according to IUPAC nomenclature.
Therefore, the parent compound is benzonitrile The carbon attached to \[ -CN \] is numbered as carbon \(1\).
Step 2: Number the substituents.
From the structure: \[ -Br \] is attached to carbon \(2\).
\[ -OH \] is attached to carbon \(3\).
Thus, the substituents are: \[ 2-\text{Bromo} \] and \[ 3-\text{Hydroxy} \]
Step 3: Arrange substituents alphabetically.
Substituents are written in alphabetical order: Bromo before Hydroxy Hence, the IUPAC name becomes: \[ 2-\text{Bromo}-3-\text{hydroxybenzonitrile} \]
Step 4: Final conclusion.
Therefore, the correct IUPAC name is \[ \boxed{2\text{-Bromo-3-hydroxybenzonitrile}} \]
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