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Question

Convert Ethanol to But-1-yne.

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Solution

CH3CH2OHethanolAl2O3CH2=CH2HBrCH3CH2Br
CHCH+CH3CH2BrNaNH2CHCHCH2CH3but1yne

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

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