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Which reaction is used to prepare alkynes from alkenes?
Which reaction is used to prepare alkynes from alkenes?
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Q1
Which reaction is used to prepare alkynes from alkenes?
Hydrogenation
Dehydrohalogenation
Hydrohalogenation
Halogenation
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Dehydrohalogenation of vicinal dihalides can be used to prepare alkynes from alkenes.
Questions & Step-by-step Solutions
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Q
Q: Which reaction is used to prepare alkynes from alkenes?
Solution:
Dehydrohalogenation of vicinal dihalides can be used to prepare alkynes from alkenes.
Steps: 5
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Step 1: Start with an alkene, which is a hydrocarbon with a double bond.
Step 2: Convert the alkene into a vicinal dihalide by adding two halogen atoms (like Cl or Br) across the double bond.
Step 3: The vicinal dihalide has two halogen atoms on adjacent carbon atoms.
Step 4: Perform a reaction called dehydrohalogenation, which means removing the halogen atoms and a hydrogen atom from the vicinal dihalide.
Step 5: This removal creates a triple bond between the two carbon atoms, resulting in an alkyne.
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