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What is the expected product when anisole undergoes bromination?

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Question: What is the expected product when anisole undergoes bromination?

Options:

  1. Bromobenzene
  2. Ortho-bromoanisole
  3. Para-bromoanisole
  4. No reaction

Correct Answer: Para-bromoanisole

Solution:

The expected product is para-bromoanisole, as the methoxy group is an electron-donating group that directs electrophilic substitution to the para position.

What is the expected product when anisole undergoes bromination?

Practice Questions

Q1
What is the expected product when anisole undergoes bromination?
  1. Bromobenzene
  2. Ortho-bromoanisole
  3. Para-bromoanisole
  4. No reaction

Questions & Step-by-Step Solutions

What is the expected product when anisole undergoes bromination?
  • Step 1: Understand what anisole is. Anisole is a compound that has a methoxy group (-OCH3) attached to a benzene ring.
  • Step 2: Know what bromination means. Bromination is a chemical reaction where bromine (Br) is added to a compound.
  • Step 3: Identify the type of reaction. Bromination of anisole is an electrophilic substitution reaction, where the bromine acts as an electrophile.
  • Step 4: Recognize the role of the methoxy group. The methoxy group is an electron-donating group, which means it helps to stabilize the positive charge that forms during the reaction.
  • Step 5: Determine the directing effects of the methoxy group. Since the methoxy group is electron-donating, it directs the bromination to the positions on the benzene ring that are ortho and para to it.
  • Step 6: Identify the preferred product. The para position is typically favored over the ortho position due to steric hindrance, leading to the formation of para-bromoanisole as the main product.
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