I came up with that -N=O group shows both +M and -M and I understand that. In my textbook it was written that " -N=O group attached to benzene shows both + m and -m depending on the nature of other groups attached to benzene" I really couldn't get it,how are that groups how to see owe to which group N=O will show +m and by which it will show -m?

  • $\begingroup$ chemistry.stackexchange.com/questions/57044/… $\endgroup$ – Mithoron May 3 '20 at 16:02
  • $\begingroup$ There answer is written that-N=O becomes o-p directing in both electrophilic and nucleophilic substitution. I didn't get this why it will be o-p directing when ring is electron rich when -NO is showing -M . Shouldn't it be meta directing in nucleophilic substitution when ring is electron rich? $\endgroup$ – SM Sheikh May 3 '20 at 16:21

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