Question

Why can aryl halides not be prepared by reaction of phenol with hcl in the presence of zncl2?

Answer 1

phenols are less reactive than alcohols. So the reaction carried out by alcohols is not given by aryl halides. So the reaction which is caried by alcohols is not given by phenol.






So alcohols give alkyl halides when reacted with HCl in presence of ZnCl2 which is called as Grove's process. But for the above reason aryl halides can not be prepared by reaction of phenol with HCl in presence of ZnCl2.





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Answer 2

Hey !!

Phenol does not react with HCl and ZnCl₂ to give aryl halides due to partial  double bond character between benzene ring and O which arises by resonance of benzene ring and OH group.

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