[kateoik]

Two deactivates group like CN and CHO in position 1,4 what product will give me in an aromatic sulfonation?

[wildfyr]

Is this hypothetical? Because such a deactivated ring will probably take some serious cooking in real life to sulfonate, and those functional groups could fall apart under such conditions.

What is your first thought?

[kateoik]

It's an exercise that my professor gave me. Hai thought that I will have an electrophilic substitution that will go in position metà respect to CHO because CHO it's a little bit more reactive than CN. But I have to proof why it forms this product with the resonance formes. The formes are 4 in bought cases and the positive charge goes in bought groups. I don't know if I did well but I am desperate I can't find nothing similar on the internet

[kateoik]

Both cases and both groups.... sorry for the English

[wildfyr]

This should help (Thanks Dan!) http://pubs.acs.org/doi/abs/10.1021/cr00002a004

[kateoik]

Thanks