Aromatic sulfonation can be reversed by heating an arylsulfonic acid in steam: SO3H + +
Chapter 26, Problem 26.41(choose chapter or problem)
Aromatic sulfonation can be reversed by heating an arylsulfonic acid in steam: SO3H + + H2O heat H H2SO4 (a) Draw a curved-arrow mechanism for this transformation. (b) Identify A, B, and C in the scheme shown in Fig. P26.42. (c) Explain why compound C cannot be synthesized in one step from thiophene.
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