Selective Deprotection and Sulfonyl Group Migration of N-Aryl Sulfonamides Mediated by TfOH (Trifluoromethanesulfonic Acid): Reaction Patterns and Synthetic Implications
Sulfonyl groups are among the most common classes of groups used in amine protection chemistry. Their role is not limited to temporarily masking an amino group; they also significantly alter the reactivity of the nitrogen atom. As a result, they are often used in selective alkylation, Mitsunobu ...
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