Which one of the following compounds undergoes electrophilic aromatic substitution at the fastest rate?
Answer: (c) option is correct option.
explanation:
since it has O which is electron donar also, it is in conjugation with double bond of benzene ring. Which make it more reactive towards the electrophilic aromatic substitution.
In compounds A and B , group associated with benzene are deactivating group , so they will not give ArSN at good rate ,
While , in D , O is not in conjugation which makes it less reactive than C,
And in E ,there is no hetero atom , this C will be more reactive than E.
Consequently, C will give aromatic electrophilic substitution at fastest rate.
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