Abstract

A Cu/Pd‐catalyzed tandem radical cyclization and C‐H activation/carbene insertion of α‐bromocarbonyls with α‐diazoesters has been developed for the construction of fused quinolin‐2(1H)‐one scaffolds. The reaction proceeded well to afford a series of 3,5‐dihydrocyclopenta[de]quinolin‐2(1H)‐one derivatives. Additionally, bioactive molecules such as sesamol and estrone could be modified by using this method.

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