Chemistry Questions
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wow nice
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Originally posted by HiAy3Captain:
wow nice
Wow, what's so nice. Please share?
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Originally posted by d3sT1nY:
Question: What is means by hydroxy group on the phenol is strongly activating due to the delocalisation of lone pair of electrons on oxygen into the phenyl ring.
As in activate is an English term used here? Means to start something?
Don't understand your question but OH group on phenol makes it strongly activating so its easier for another functional group to attached to it since the benzene ring is now more reactive.
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The OH group donates electrons to the benzene ring through resonance, therefore increasing electron density of the benzene ring. Since benzene is the nucleophile in the electrophilic aromatic substitutions, increasing e density will increase the nucleophilicity of the benzene ring as compared to unsubsituted C6H6. Like what dkcx said, it makes the ring more reactive towards electrophiles and hence OH activates the ring.