What is the effect of electron-withdrawing groups on the basicity of amines?

Practice Questions

Q1
What is the effect of electron-withdrawing groups on the basicity of amines?
  1. Increase basicity
  2. Decrease basicity
  3. No effect
  4. Varies with the group

Questions & Step-by-Step Solutions

What is the effect of electron-withdrawing groups on the basicity of amines?
Correct Answer: Electron-withdrawing groups decrease the basicity of amines.
  • Step 1: Understand what amines are. Amines are compounds that contain a nitrogen atom bonded to hydrogen atoms or carbon atoms.
  • Step 2: Know what basicity means. Basicity refers to the ability of a substance to accept protons (H+ ions).
  • Step 3: Learn about electron-withdrawing groups. These are groups of atoms that pull electrons away from other atoms, making them less electron-rich.
  • Step 4: Identify how electron-withdrawing groups affect nitrogen in amines. When these groups are attached to the amine, they reduce the amount of electron density on the nitrogen atom.
  • Step 5: Realize that less electron density on nitrogen means it is less able to attract protons. This makes the amine less basic.
  • Step 6: Conclude that the presence of electron-withdrawing groups decreases the basicity of amines.
No concepts available.
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