QUESTION
How will you convert benzene into
(i) p-nitrobromobenzene (ii) m-nitrochlorobenzene
(iii) p-nitrotoluene (iv) acetophenone?
ANSWER
(i) Since, the two substituents in the benzene ring are present at p-position, therefore, the first substituent
(ii) Since, the two substituents in the benzene ring are present at w-positions, therefore, the first substituent in the benzene ring should be m-directing.
(iv) Acetophenone can be prepared by Friedel Crafts acylation.