Consider the organic molecule provided in the figure. It is subjected to the following reaction sequence: 1. LiAlH₄ in ether, followed by H₂O 2. NaNO₂ and HCl at 273-278 K 3. Warming with H₂O Identify the major organic product formed at the end of this sequence.

Step-by-step solution

The given starting material is pentanamide, which has a 5-carbon chain: CH₃CH₂CH₂CH₂CONH₂ . Reaction with LiAlH₄ in ether followed by H₂O reduces the amide to a primary amine. The carbonyl group ( -C=O ) is converted to a methylene group ( -CH₂- ). CH₃CH₂CH₂CH₂CONH₂ LiAlH₄ CH₃CH₂CH₂CH₂CH₂NH₂ Reaction of the resulting primary aliphatic amine (pentan-1-amine) with NaNO₂ and HCl at 273-278 K generates nitrous acid ( HNO₂ ), which forms an unstable aliphatic diazonium salt. CH₃(CH₂)₄NH₂ NaNO₂, HCl [CH₃(CH₂)₄N₂^+Cl^-] W