How will you convert benzene into (i) p-nitrobromobenzene (ii) m-nitrobromobenzene

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First do bromination with FeBr3/ Br2, you will get bromo benzene,then nitration with concern HNO3/ H2SO4( nitrating reagent)
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(I) Benzene+AlBr3+Br2=Bromo Benzene Bromo Benzene+H2SO4+HNO3=p-nitrobromobenzene as halogens are Ortho para directing. (Ii)Benzene+H2SO4+HNO3=nitro Benzene Nitrobenzene+ AlBr3 +Br2=m-nitrobromobenzene as nitro group is meta directing.
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A) first bromination followed by nitration.Bromination can be done by AlBr3+ Br2, followed by nitration with HNO3+ H2SO4,as bromine is Ortho,para directing. B) first nitration followed by bromination as nitro group is meta directing
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I hv chemistry teacher qualified CSIR -UGC-NET & GATE with all India rank -6 with 5 years tec exp...

First on reacts with benzene presence of any Lewis acid then u will take any bromination electrophile eg.NBS.Br2 . bromination attached any position in benzene then using nitrating reagent this NO2 electrophile from HNO3 +H2SO4 reagent incoming towords of para position on bromo benzene . Short trick...
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First on reacts with benzene presence of any Lewis acid then u will take any bromination electrophile eg.NBS.Br2 . bromination attached any position in benzene then using nitrating reagent this NO2 electrophile from HNO3 +H2SO4 reagent incoming towords of para position on bromo benzene . Short trick :- any electron donating group give Ortho ,para directing product eg.bromo benzene or any halo benzene .aniline .toulene . Or Any electron withdrawing group meta directing product .eg cyno benzene ,nitro benzene any carbonyl group attached with benzene all give meta product with incoming electrophile. read less
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