A convenient iron‐catalyzed oxidative dehydrogenative coupling reaction of 3,4‐Dihydro‐1,4‐benzoxazin‐2‐ones with malonic esters or ketones was performed under mild reaction conditions to construct alkyl–alkyl C(sp³)−C(sp³) bonds. This transformation can be catalyzed efficiently by magnetically recoverable iron nanoparticles and the catalyst can be recycled easily for 7 times without decreasing activity.

中文翻译：

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3,4-二氢-1,4-苯并恶嗪-2-酮中铁催化的C（sp3）-C（sp3）键形成

在温和的反应条件下，进行了方便的铁催化的3,4-二氢-1,4-苯并恶嗪-2-酮与丙二酸酯或酮的氧化脱氢偶联反应，以构建烷基-烷基C（sp ³）-C（sp ³）债券。该转变可以通过可磁回收的铁纳米颗粒有效地催化，并且该催化剂可以容易地循环使用7次而不会降低活性。