[Fzang]

That is the question I'm given. No drawings, no clues, no nothing.

Previous question was benzoic acid + nitric acid/sulfuric acid which adds a meta-directed nitro-group to the benzoic acid. Simple as that... but the question in topic... I have no idea. Does it mean I add hydroflouric acid to cyclohexene to create some flourocyclohexane which can then (somehow) react with isopropylbenzene.. or what?

I'm clueless. Every other question in this section follows the "A + B with condition C", except the one in topic.

[Fzang]

Maybe this?





That would make perfect sense... I think.

If that's the case, could anybody explain the reaction mechanism, showing the intermediates formed?

[ooosh]

Dont you know the mechanism of F-C alkylation?

[Fzang]

HF attaches to the double bond, creating flourocyclohexane.

Flourocyclohexane is converted to cyclohexane-carbocation with AlF₃.

Carbocation reacts o/p with benzene isopropylbenzene.

Proton is removed from the o/p located carbon, restoring charge.

Proton regenerates AlF₄^- to AlF₃ and HF.

Is this correct?

[Fzang]

(Why can't I edit my posts?)

Correction to above. I think HF can create an electrophile/nucleophile by itself without a catalyst. Catalysts are only needed for pure halogens such as Br₂.

[ooosh]

See,you can solve it yourself.

[cupid.callin]

Its pretty simple example of freidal craft's alkylation.
But the ortho product will be in negligible amount due to steric hindrance .