Electrophilic Substitution Reactions of Haloarenes
C7H83Cl2/ hea...
Question
C7H83Cl2/heat→AFe/Br→BZn/HCl→C. Here, the compound C is:
A
3-bromo 2,4,6-trichlorotoluene
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B
o-bromotoluene
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C
P-bromotoluene
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D
m-bromotoluene
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Solution
The correct option is D m-bromotoluene The compound C is m-bromotoluene. First, the methyl group of toluene is chlorinated. Due to this, ortho para directing methyl group is converted into meta directing trichloromethyl group. Then aromatic ring is brominated. This is followed by the conversion of trichloromethyl group to methyl group. The overall reaction is toluene to m-bromotoluene.