A novel method for the ortho alkylation of acetanilide and aromatic urea derivatives via C–H activation was developed. Alkyl dibenzothiophenium salts are considered to be new reagents for the palladium-catalyzed C–H activation reaction, which enables the transfer of methyl and other alkyl groups from the sulfonium salt to the aniline derivatives under mild catalytic conditions.

中文翻译：

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ulf盐作为烷基化剂，用于钯催化的苯甲酸酯和芳香尿素的直接邻位烷基化

开发了一种通过C–H活化对乙酰苯胺和芳香族脲衍生物进行邻位烷基化的新方法。烷基二苯并噻吩鎓盐被认为是钯催化的C–H活化反应的新试剂，该反应能够在温和的催化条件下将甲基和其他烷基从salt盐转移至苯胺衍生物。