Explain heating any of the three isomeric dimethylbenzenes

Reference no: EM13156001

Heating any of the three isomeric dimethylbenzenes with HF in the presence of BF3 to 80 C leads to the equilibrium mixture shown below:

1,2-Dimethylbenzene: 18% , 1,3-Dimethylbenzene: 58% , 1,4-Dimethylbenzene: 24%

Why is the equilibrium concentration of the 1,2-isomer the lowest?

Reference no: EM13156001

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