Identify the reagent used in the following co | vedclass

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Question

(A) The conversion of a nitrile $(-CN)$ to an aldehyde $(-CHO)$ while preserving other functional groups like a double bond is achieved using Diisobut

Vedclass · Accepted Answer

$AlH(i-Bu)_2 / H_3O^{+}$

Vedclass · Answer

(A) The conversion of a nitrile $(-CN)$ to an aldehyde $(-CHO)$ while preserving other functional groups like a double bond is achieved using Diisobutylaluminium hydride ($DIBAL-H$ or $AlH(i-Bu)_2$),followed by acid hydrolysis $(H_3O^{+})$. $DIBAL-H$ is a selective reducing agent that reduces nitriles to imines,which upon hydrolysis yield aldehydes. Therefore,the correct reagent is $AlH(i-Bu)_2 / H_3O^{+}$.

Identify the reagent used in the following conversion: $\text{Pent-3-enenitrile} \xrightarrow{A} \text{Pent-3-enal}$

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