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The major product 'P' is formed when ethyl bromide is heated with alcoholic AgCN . Which of the following reactions will yield the functional isomer of 'P' as the major product?

Options

  1. ACH ₃ CH ₂ NH ₂ + CHCl ₃ + KOH
  2. BCH ₃ CH ₂ Cl + AgCN
  3. CCH ₃ CH ₂ CONH ₂ + Br ₂ + NaOH
  4. DCH ₃ CH ₂ Br + KCN

Correct answer

D. CH ₃ CH ₂ Br + KCN

Step-by-step solution

When ethyl bromide reacts with AgCN , the ambidentate cyanide nucleophile attacks through the nitrogen atom, forming ethyl isocyanide as the major product P. CH ₃ CH ₂ Br + AgCN CH ₃ CH ₂ NC (P) The functional isomer of ethyl isocyanide ( CH ₃ CH ₂ NC ) is ethyl cyanide ( CH ₃ CH ₂ CN ). We must find the reaction that produces ethyl cyanide. Let us evaluate the given options: Option 1: CH ₃ CH ₂ NH ₂ with CHCl ₃ and KOH is the carbylamine reaction, which yields ethyl isocyanide (P itself). Option 2: CH ₃ CH ₂ Cl wi

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