C_7H_8 [ Heat ] 3 Cl _2 A Fe/Br _2 B Zn/HCl C. Here, the compound C is [BITSAT 2007]

JEE Main Chemistry question

. Here, the compound is [BITSAT 2007]

(A)3-bromo 2,4,5,6-trichlorotoluene
(B)*o*-bromo tolueneCorrect
(C)*p*-bromo toluene
(D)*m*-bromo toluene

Answer: (B)

Solution

Toluene's methyl group is exhaustively chlorinated (side-chain, radical conditions) to benzotrichloride, CHCCl (). Fe/Br then brominates the (now unsubstituted at the methyl position) ring electrophilically; since –CCl is strongly

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Question ID VK-142273