A mild and direct C–H arylation of quinoxazolin-2(1H)-ones with aryldiazonium salts has been developed. A wide variety of 3-arylquinoxazolin-2(1H)-ones were synthesized in up to 92% yield at room temperature under metal-free conditions. This strategy tolerates a wide range of functional groups and shows environmental friendliness and practicality.

中文翻译：

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在无金属条件下使用芳基重氮盐对喹喔啉-2(1H)-酮进行温和且直接的 C-H 芳基化

已经开发了喹恶唑啉-2(1H)-酮与芳基重氮盐的温和和直接的 C-H 芳基化。在室温、无金属条件下合成了多种 3-芳基喹恶唑啉-2(1H)-酮，产率高达 92%。这种策略容忍了广泛的功能组，并显示出环境友好性和实用性。