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But-2-yne heated with NaNH2 in mineral o...

But-2-yne heated with `NaNH_2` in mineral oil and them treated with water. Which of the following compounds is formed finally?

A

`CH_3CH_2CH_2CH_3`

B

`CH_3CH_2C-=CH`

C

`(CH_3)_2C=CH_2`

D

`CH_2=C=CHCH_3`

Text Solution

Verified by Experts

The correct Answer is:
B
When alkynes are heated with sodamide in an inert solvent, the triple bond moves towards the end of the chain:
`CH_3C-=CCH_3+NaNH_2overset("Mineral oil")underset(Delta)toNH_3+CH_3CH_2C-=Cnaoverset(H^(+))toCH_3CH_2C-=CH`
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