Question:
What is IUPAC name of allylbromide ?
What is IUPAC name of allylbromide ?
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Allyl bromide is CH2=CH-CH2Br, and the bromine sits on the third carbon of the propene chain.
Updated On: Nov 12, 2026
- \(1\)-Bromopropene
- \(2\)-Bromopropene
- \(3\)-Bromopropene
- \(1\)-Bromoprop-\(2\)-ene
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The Correct Option is C
Solution and Explanation
Step 1: Understanding the Concept
The allyl group is \(\text{CH}_{2}=\text{CH}-\text{CH}_{2}-\), so allyl bromide is \(\text{CH}_{2}=\text{CH}-\text{CH}_{2}\text{Br}\).
Step 2: Name the compound
The parent chain has three carbons with a double bond, so it is propene.
Bromine is on the carbon at the opposite end from the double bond, which is carbon 3 when the double bond gets number 1.
Step 3: Result
The name is 3-bromopropene (3-bromoprop-1-ene), option (C).
Final Answer:
The IUPAC name is 3-bromopropene. \[ \boxed{\text{(C) }\text{3-Bromopropene}} \]
The allyl group is \(\text{CH}_{2}=\text{CH}-\text{CH}_{2}-\), so allyl bromide is \(\text{CH}_{2}=\text{CH}-\text{CH}_{2}\text{Br}\).
Step 2: Name the compound
The parent chain has three carbons with a double bond, so it is propene.
Bromine is on the carbon at the opposite end from the double bond, which is carbon 3 when the double bond gets number 1.
Step 3: Result
The name is 3-bromopropene (3-bromoprop-1-ene), option (C).
Final Answer:
The IUPAC name is 3-bromopropene. \[ \boxed{\text{(C) }\text{3-Bromopropene}} \]
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