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Olympiad workbookNSECGeneral Organic Chemistry

Reaction of para-Chloroaniline with acetic anhydride in pyridine gave a crude mixture of 94 % of para-chloroacetanilide and 6 % unreacted amine. From the following, the best treatment suitable for purification of para-chloroacetanilide is

Options

  1. Atreating the reaction mixture with methyl iodide
  2. Bwashing an ether solution of the crude product with concentrated brine (aq. NaCl )
  3. Cwashing an ether solution of the crude product with 5 % cold aqueous sulfuric acid
  4. Dwashing an ether solution of the crude product with 5 % aqueous sodium carbonate

Correct answer

C. washing an ether solution of the crude product with 5 % cold aqueous sulfuric acid

Step-by-step solution

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