demonstrated that alkylated benzene sulfonanilides undergo sulfuric acid (98%)–catalyzed rearrangement to alkylamino diaryl sulfones. Similar treatment of their unalkylated analogs typically leads only to hydrolysis. Surprisingly, when the unalkylated benzene sulfonanilides react with triflic acid, rearrangement to sulfones does occur. GRAPHICAL ABSTRACT
摘要 先前的工作表明,烷基化
苯磺酰苯胺在
硫酸 (98%) 催化下重排为烷基
氨基二芳基砜。对其未烷基化类似物的类似处理通常仅导致
水解。令人惊讶的是,当未烷基化的
苯磺酰苯胺与
三氟甲磺酸反应时,确实会发生重排为砜类。图形概要