Which of the following is the strongest o,p-d | vedclass

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Question

(A) The strength of an $o,p$-directing group is determined by its ability to donate electrons to the benzene ring via the resonance effect ($+R$ or $+

Vedclass · Accepted Answer

$OH$

Vedclass · Answer

(A) The strength of an $o,p$-directing group is determined by its ability to donate electrons to the benzene ring via the resonance effect ($+R$ or $+M$ effect).Among the given options,the $-OH$ group has a strong $+R$ effect due to the lone pairs on the oxygen atom,which are effectively donated to the ring.Halogens like $-Cl$ and $-Br$ exhibit a $-I$ effect that outweighs their $+R$ effect,making them deactivating groups,although they remain $o,p$-directing.The phenyl group $(-C_6H_5)$ is a weaker electron-donating group compared to $-OH$.Therefore,$-OH$ is the strongest $o,p$-directing group among the choices.

Which of the following is the strongest $o,p$-directing group?

Similar Questions

Which one of the following functional groups is not meta directing?

Which of the following are necessary conditions for the electrophilic aromatic halogenation of benzene?

How would you convert the following compounds into benzene?
$(i)$ Ethyne
$(ii)$ Ethene
$(iii)$ Hexane

The total number of aromatic species generated in the following reactions is:

Assertion : Cyclopentadienyl anion is much more stable than allyl anion.
Reason : Cyclopentadienyl anion is aromatic in character.

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