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 room temperature with commercially available aryl boronic acids and 2,2,6,6-tetramethylpiperidine-1-oxyl (TEMPO) as a mild oxidant in good yields.
描述了钯催化的 N-Boc-吲哚和苯并呋喃的脱芳构化双官能化,得到具有完全取代的碳中心的三环二氢吲哚和 2,3-二氢苯并呋喃。在温和条件下,在室温下使用市售的芳基硼酸和 2,2,6,6-四甲基哌啶-1-氧基 (TEMPO) 作为温和的氧化剂以良好的收率形成产品。