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Action of Water on Calcium Carbide

Convert Ethan...

Question

Convert Ethanol to But-1-yne.

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Solution

$C H_{3} C H_{2} O H e t h a n o l A l_{2} O_{3} ⟶ C H_{2} = C H_{2} H B r ⟶ C H_{3} C H_{2} B r$
$C H \equiv C H + C H_{3} C H_{2} B r N a N H_{2} ⟶ C H \equiv C H - C H_{2} C H_{3} b u t - 1 - y n e$

Note: NaNH2 acts as base takes up acidic H of alkyne which is terminal alkyne.

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Q. How can we convert Ethanol to But-1-yne ?

Q. Give reasons:
1. thionyl chloride is preferred reagent for converting ethanol to chloroethane
2. Tert-butyl bromide has lower bioling point than n-butyl bromide
3. although alkyl halides are polar in nature they are not soluble in water

Q. Convert Ethyl alcohol to Tert-Butyl alcohol.

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