A simple iodine-mediated approach is reported for the synthesis of sulfenylated imidazo[1,2-a]pyridines through the reaction of imidazo[1,2-a]pyridines with ethyl arylsulfinates under mild conditions. The reaction scope was investigated, and a plausible mechanism is proposed to elucidate the reaction process and activation mode. The results indicate that ethyl sulfinates are efficient sulfur sources for the construction of C–S bonds.

中文翻译：

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碘介导的芳基亚磺酸乙酯与咪唑并[1,2-a]吡啶的亚磺酰化

报道了一种简单的碘介导的方法，该方法通过使咪唑并[1,2-a]吡啶与芳基亚磺酸乙酯在温和的条件下反应来合成亚磺酰基化的咪唑并[1,2-a]吡啶。研究了反应范围，并提出了一个合理的机理来阐明反应过程和活化方式。结果表明，亚磺酸乙酯是构建CS键的有效硫源。