alleryIdentify the correct conversion: $CH_3CN \xrightarrow{?} CH_3CHO$ (one step).
AClemmensen reduction
BEtard reaction
CRosenmund's reduction
DStephen's reduction
Answer & Solution
Correct answer: D. Stephen's reduction
$CH_3CN \xrightarrow{SnCl_2/HCl,\,then\,H_2O} CH_3CHO$ — Stephen's reduction.
Rosenmund needs $RCOCl$, not $RCN$. Etard works on toluene.
Clemmensen reduces $C=O$ to $CH_2$, not $CN$ to $CHO$.
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