thenextchemist
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Is sulfonation faster with phenol than with benzene?

Because phenol has two positions (ortho and para) in which sulfonation can occur.
And OH group is electron donating, so the sulfonation reaction should happen faster with phenol than benzene, right?

Thanks!
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_NMcC_
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(Original post by Bloom77)
Is sulfonation faster with phenol than with benzene?

Because phenol has two positions (ortho and para) in which sulfonation can occur.
And OH group is electron donating, so the sulfonation reaction should happen faster with phenol than benzene, right?

Thanks!
Yes, the hydroxyl group 'activates' the ring and makes it more reactive to electrophiles than benzene.

Hydroxyls are 2,4 directing groups.
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