Which sequence of reactions will make the below transformation in the most effic

Question

Which sequence of reactions will make the below transformation in the most efficient way (major product/s obtained at the first step of the sequence is/are reacting further and the desired final is also the major product of the reaction). N+-O HO Select one: a. First step: Br; Second step: HNO3 + H2SO4 b. First step: H2SO4; Second step: Br, with FeBr, (catalyst) c. First step: HBr with FeBr3 (catalyst); Second step: HNO3 + H2S04 d. First step: HNO3+ H2SO4: Second step: Br2 with FeBr3 (catalyst) e. First step: Br2 with FeBr3 (catalyst); Second step: HNO3 + H2S04 f. First step: HNO3 , second step: Br2 with FeBr3 (catalyst)

Explanation / Answer

Option D is correct

First step: HNO3 + H2SO4; second step: Br2 with FeBr3 (catalyst)

Explanation: -COOH group on benzene ring is an electron withdrawing group and directs the incoming electrophile to meta position. NO2 group is also an electron withdrawing group and directs the incoming electrophile to meta position.

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