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RCOOH after treatment with PCl(5) and KC...

RCOOH after treatment with `PCl_(5)` and KCN is subjected to hydrolysis followed by Clemmension's reduction, product obtained as `:

A

`RCH_(2)-COCl`

B

`RCH_(2)-COOH`

C

`RCOCN`

D

`RCN`

Text Solution

Verified by Experts

The correct Answer is:
B
`RCOOH+ PCl_(5) to RCOCl + POCl_(3) + HCl overset(KCN)to RCOCN+ KCl overset(2H_(2)O)to RCOCOOH+ 2NH_(3) underset(Zn-Hg//"conc. "HCl)overset("Clemensen.s reduction")to RCH_(2)COOH+ H_(2)O`
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