COMEDK2022ChemistryAldehydes and Ketones
X and Y in the following reactions are
Correct answer
2
Step-by-step solution
The reaction of butan-2-one ( CH₃COCH₂CH₃ ) with HCN in the presence of KCN is a nucleophilic addition reaction, which forms a cyanohydrin. The product X is 2-hydroxy-2-methylbutanenitrile, represented as CH₃C(OH)(CN)CH₂CH₃ . The conversion of the cyanohydrin X to the final product, which is 1-amino-2-methylbutan-2-ol ( CH₃C(OH)(CH₂NH₂)CH₂CH₃ ), involves the reduction of the nitrile group ( -CN ) to a primary amine group ( -CH₂NH₂ ). Lithium aluminium hydride ( LiAlH₄ ) is a strong reducing agent capable of reducin