What is the main product when propanoic acid is treated with thionyl chloride?

Practice Questions

Q1
What is the main product when propanoic acid is treated with thionyl chloride?
  1. Propyl chloride
  2. Propanoic anhydride
  3. Propionyl chloride
  4. Propylene

Questions & Step-by-Step Solutions

What is the main product when propanoic acid is treated with thionyl chloride?
  • Step 1: Identify the starting material, which is propanoic acid (C2H5COOH).
  • Step 2: Identify the reagent being used, which is thionyl chloride (SOCl2).
  • Step 3: Understand that thionyl chloride is used to convert carboxylic acids into acyl chlorides.
  • Step 4: When propanoic acid reacts with thionyl chloride, the -OH group from the acid is replaced by a -Cl group.
  • Step 5: The product formed from this reaction is propionyl chloride (C2H5COCl).
  • Step 6: Therefore, the main product of the reaction is propionyl chloride.
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