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Roverset(PCl5)toAunderset(excess)overset...

`Roverset(PCl_5)toAunderset(excess)overset(NaNH_2)toBoverset(H_2O)to`propyne
Identify the reactant.

A

`CH_3COCH_3`

B

`CH_3CH_2CHO`

C

`CH_3CH=CH_2`

D

`CH_3COCH_3` or `CH_3CHO`

Text Solution

Verified by Experts

The correct Answer is:
D
It involves a double dehydrohalogenation of a gemdichloride:
`CH_3COCH_3`
`CH_3CCl_2CH_3`
or `overset(PCl_5)to` or `overset(NaNH_2)toCH_3C-=overline(C)Na^(+)`
`CH_3CH_2CHO`
`CH_3CH_2CHCl_2`
`overset(H_2O)toCH_3C-=CH`
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