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What is the principal product formed in the following sequence? R–C≡N (i) AlH(i-Bu)2 (ii) H2O

1. RCOOH
2. RCONH2
3. RCHO
4. RCH2NH2

Correct answer: RCH2NH2

Solution

The reaction sequence involves the reduction of a nitrile (R–C≡N) to a primary amine (RCH2NH2) using a bulky reducing agent like AlH(i-Bu)2, followed by hydrolysis with water, which converts the intermediate to the final amine product.

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