Question

If a dinitration product were formed in the reaction, at what position on the ring would the second nitro group be added?  Explain the reasoning behind your answer and draw relevant resonance structures to reinforce your rationale.

Answer 1

Ntro UW If dinstration occurs for a reaction the 2nd nitration will occurs at the meta position with respect to the first nitro group. [meta position) As the nitro group is election withdrawing in nature so Nog group is meta directing group for the electrophilic aromatic substitution reaction. So the and nitration occurs at meta position. for the electrophilic aromatic substitution occurs and the electron rich centre. For ritrobenzene the electron density is more aut meta position compare to the ortho & para position. Hence the and nitration occurs at meta position. ) 0 - 0 - ه ه ه N-00 from the above resonate bructure we can see that the meta position has more electron density compare to orto & para position .