Identify the substrate ' A ' in the following conversion. $A \xrightarrow[\mathrm{H}_3…

Identify the substrate ' A ' in the following conversion. $A \xrightarrow[\mathrm{H}_3 \mathrm{O}^{+}]{\mathrm{AlH}(\mathrm{i}-\mathrm{Bu})_2} \text { Pent-3-enal }$
  1. Pentanenitrile
  2. Pent-3-enenitrile
  3. Pent-3-en-1-amine
  4. Pent-3-ynenitrile

Solution

$\mathrm{H}_3 \mathrm{C}-\mathrm{CH}=\mathrm{CH}-\mathrm{CH}_2-\mathrm{C} \equiv \mathrm{~N} \xrightarrow[\mathrm{H}_3 \mathrm{O}^{+}]{\mathrm{AlI}(i-\mathrm{Bu})_2}$
Pent-3-enenitrile $\mathrm{H}_3 \mathrm{C}-\mathrm{CH}=\mathrm{CH}-\mathrm{CH}_2-\mathrm{CHO}$
Pent-3-enal

Asked in: MHT CET 2024 (16 May Shift 1)

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