A facile protocol is described for the synthesis of benzil derivatives from readily accessible diarylacetylene derivatives using the NH₄I/EtOCS₂K system. This novel protocol results in excellent chemoselectivity and provided good to excellent yields. A control experiment indicated that the reaction proceeds via NH₄I promoted EtOCS₂K dimerization to give the corresponding dixanthogen and subsequent dixanthogen assisted oxidation.

中文翻译：

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NH ₄ I / EtOCS ₂ K促进了由二苯基乙炔衍生物合成取代的苯甲醚

描述了一种使用NH ₄ I / EtOCS ₂ K系统从易于获得的_二芳基乙炔衍生物合成苯衍生物的简便方案。这种新颖的方案产生了出色的化学选择性，并提供了良好的优异收率。对照实验表明，反应是通过NH ₄ I促进EtOCS ₂ K二聚而进行的，从而得到相应的地黄原胶和随后的地黄原胶辅助的氧化反应。