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C(6)H(5)-CH=CHCHO overset((X))rarr C(6)H...

`C_(6)H_(5)-CH=CHCHO overset((X))rarr C_(6)H_(5)CH=CH_(2)OH`
In the above sequence (X) can be:

A

`H_2//Ni`

B

`NaBH_4`

C

`K_2Cr_2O_7//H^(+)`

D

Both (a) and (b)

Text Solution

Verified by Experts

The correct Answer is:
B
`NaBH_4 and LiAlH_4` attacks only carbonyl group and reduce it into alcohol group. They do not attack on double bond.
`underset("cinnamic aldehyde")(C_6H_5-CH =CHCHO) overset(NaBH_4)to underset ("cinnamic alcohol")(C_6H_5-CH = CH. CH_2OH)`
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