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Which of the following is a better reduc...

Which of the following is a better reducing agent for the following reaction
`RCOOH to RCH_2OH`

A

`SnCl_2//HCL`

B

`NaBH_4//ether`

C

`H_2//P_d`

D

`B_2H_6//H_3O^+`

Text Solution

Verified by Experts

The correct Answer is:
D
Carboxyli acids when treated with either diborane or LAH, get reduced to primary alcohols. Diborane is a better reagent than LAH for such conversion, as it does not affect other functional groups such as ester, nitro , halo etc.
`R-COOH+B_2H_6 underset(H_3O^+) to R-CH_2OH`
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