How would you prepare (2)
i) 1,2-dibromobutane from 1-butyne,
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Answer : The reaction are shown below.
Explanation :
This reaction is a dehydrohalogenation of dihaloalkanes. This is also known as the 1,2- elimination reaction.
When 1,2-dibromobutane react with strong base like alcoholic KOH result in the formation of but-1-yne or 1-butyne. The alcoholic KOH is a dehydrohalogentating agents.
The given reaction conversion are shown below.
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