hi friend its simple see first step is mono nitration at ortho position then reduction of -NO₂ group by LiAlH₄ then treatment with NaNO₂/HCl which convert it into dissonium salt and finally treatment with CuBr and you will get the desired product

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hey aman if u will use NO₂+ THEN THE PARA will also be formed.............

 

so the major concern is to make 100% ortho...........

for this ..............para should be blocked..............ok.........

 

now.............

C6H5CH₃ +   ( CH₃)₃Br  --->  (CH₃)₃--C6H5- CH₃

[ NOTE : HERE ORTHO WILL NOT BE FORMED BECAUSE........

             due to stearic hindrance..........only para will be formed]

now use NO₂+ REAGENT............NO₂  WILL HAVE NO OPTION BUT JUST ...IT WILL ATTACH TO ORTHO.............

NOW..............REDUCE IT BY Sn/HCl.............to NH₂............

USE NaNO₂ / HCl  AND  then CuBr................

the desired product will be obtained.................

thanku...........