Question
Write a note on elimination reaction.
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Explain dehydrohalogenation reaction.
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Explain dehydrohalogenation reaction.
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Answer
When alkyl halide having at least one $\beta$-hydrogen is boiled with alcoholic solution of potassium hydroxide ( $KOH$ ), an alkene is formed due to elimination of hydrogen atom from $\beta$-carbon and halogen atom from $\alpha$-carbon, is called dehydrohalogenation.
Tertiary butyl bromide when heated with alcoholic solution of potassium hydroxide forms isobutylene.
This reaction is called $\beta$-elimination (or 1,2-elimination) reaction as it involves elimination of halogen and a $\beta$-hydrogen atom.
As hydrogen and halogen is removed in this reaction it is also known as dehydrohalogenation reaction.
Tertiary butyl bromide when heated with alcoholic solution of potassium hydroxide forms isobutylene.
This reaction is called $\beta$-elimination (or 1,2-elimination) reaction as it involves elimination of halogen and a $\beta$-hydrogen atom.
As hydrogen and halogen is removed in this reaction it is also known as dehydrohalogenation reaction.
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