Chlorinated compounds are ubiquitous. However, accumulation of chlorine-containing waste has a negative impact on human health and the environment due to the inapplicability of common disposal methods, such as landfill and incineration. Here we report a sustainable approach to valorize chlorine-containing hydrocarbon waste, including solids (chlorinated polymers) and liquids (chlorinated solvents), based on copper and palladium catalysts with a NaNO₃ promoter. In the process, waste is oxidized to release the chlorine in the presence of N-directing arenes to afford valuable aryl chlorides, such as the FDA-approved drug vismodegib. The remaining hydrocarbon component is mineralized to afford CO, CO₂ and H₂O. Moreover, the CO and CO₂ generated could be further utilized directly. Thus, chlorine-containing hydrocarbon waste, including mixed waste, can serve as chlorination reagents that neither generate hazardous by-products nor involve specialty chlorination reagents. This tandem catalytic approach represents a promising method for the viable management of a wide and diverse range of chlorine-containing hydrocarbon wastes.

氯化化合物无处不在。然而，由于垃圾填埋和焚烧等常规处理方法不适用，含氯废物的积累会对人类健康和环境产生负面影响。_{在这里，我们报告了一种基于铜和钯催化剂以及 NaNO 3}促进剂的可持续方法，用于对含氯碳氢化合物废物进行增值，包括固体（氯化聚合物）和液体（氯化溶剂）。在此过程中，废物在 N 导向芳烃存在下被氧化释放出氯，从而获得有价值的芳基氯化物，例如 FDA 批准的药物 vismodegib。剩余的烃组分被矿化以提供CO、CO ₂和H ₂ O。此外，产生的CO和CO ₂可以进一步直接利用。因此，含氯烃废物，包括混合废物，可以用作氯化试剂，既不会产生危险的副产物，也不涉及特种氯化试剂。这种串联催化方法代表了一种有前途的方法，可以有效管理各种含氯烃废物。