Palladium-Catalyzed Dearomatizing Difunctionalization of Indoles and Benzofurans
作者:Vincenzo Ramella、Zhiheng He、Constantin G. Daniliuc、Armido Studer
DOI:10.1002/ejoc.201600194
日期:2016.5
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 roomtemperature with commercially available aryl boronic acids and 2,2,6,6-tetramethylpiperidine-1-oxyl (TEMPO) as a mild oxidant in good yields.