Herein, we report a direct diazenylation of active methylene compounds that is environmentally friendly, cost-effective, and scalable, utilizing a heterogeneous TiO₂ catalyst that is both accessible and recyclable. The scope of this transformation shows excellent compatibility with both electron-rich and electron-poor diazonium salts, yielding the desired products in very good yields at room temperature.

中文翻译：

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TiO2 催化活性亚甲基化合物与重氮盐的直接二氮化反应


在本文中，我们报道了活性亚甲基化合物的直接二氮化反应，该方法使用可接近且可回收的异质 TiO₂ 催化剂，环保、经济高效且可扩展。这种转变的范围显示出与富电子和贫电子重氮盐的出色相容性，在室温下以非常好的产率产生所需的产物。