What is the main product when phenol reacts with concentrated sulfuric acid?

What is the main product when phenol reacts with concentrated sulfuric acid?

Step 1: Understand that phenol is a compound that has a hydroxyl group (-OH) attached to a benzene ring.
Step 2: Know that concentrated sulfuric acid (H2SO4) is a strong acid that can react with phenol.
Step 3: Recognize that when phenol reacts with concentrated sulfuric acid, it undergoes a reaction called electrophilic substitution.
Step 4: In this reaction, the hydroxyl group (-OH) of phenol is replaced by a sulfate group (-OSO3H).
Step 5: The main product of this reaction is called phenyl sulfate, which is formed when the sulfate group attaches to the benzene ring.

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