An Efficient Route to Polysubstituted Tetrahydronaphthols: Silver-Catalyzed [4+2] Cyclization of 2-Alkylbenzaldehydes and Alkenes
作者:Shifa Zhu、Renxiao Liang、Huanfeng Jiang、Wanqing Wu
DOI:10.1002/anie.201204798
日期:2012.10.22
Silver bullet: A methodology for stereoselective synthesis of polysubstituted tetrahydronaphthols catalyzed by [Ag+]/NPO has been developed. The reactions proceeded through an unprecedented [4+2] cyclization of 2‐(2‐formylphenyl)ethanone and an alkene, in both inter‐ and intramolecular fashion. NPO=pyridine N‐oxide.
银子弹:[Ag + ] / NPO催化的立体选择性合成多取代四氢萘的方法。反应以分子间和分子内的方式,以前所未有的[4 + 2]环化2-(2-甲酰基苯基)乙酮和烯烃的过程进行。NPO =吡啶N-氧化物