Question

Notes: A ‘detailed’ mechanism should illustrate all intermediates, by-products, and electron-pushing arrows. The marking scheme is given for each question as a guide; It is subject to minor changes.

In class, we learned how to sulfonate aromatic rings by treating them with SO₃ and H₂SO₄. This reaction is reversible. Propose a detailed mechanism for this reverse reaction. Note, catalysts are reactants that are regenerated at the end of a reaction sequence.

Answer 1

The answer is attach below

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