Palladium‐Catalyzed Dearomatizing Difunctionalization of Indoles and Benzofurans

Abstract

Abstract A palladium‐catalyzed dearomatizing difunctionalization of N ‐Boc‐indoles and benzofurans to give tricyclic indolines and 2,3‐dihydrobenzofurans with a fully substituted carbon center is described. Product formation occurs under mild conditions at room temperature with commercially available aryl boronic acids and 2,2,6,6‐tetramethylpiperidine‐1‐oxyl (TEMPO) as a mild oxidant in good yields.