Iridium/Copper Co-catalyzed <i>Anti</i>-Stereoselective Ring Opening of Oxabenzonorbornadienes with Grignard Reagents
作者:Guo Cheng、Wen Yang、Yue Li、Dingqiao Yang
DOI:10.1021/acs.joc.6b01479
日期:2016.9.2
developed for the ring-opening reaction of oxabenzonorbornadienes with a wide variety of Grignard reagents, which afforded the corresponding anti-2-substituted 1,2-dihydronaphthalen-1-ols in high yields (up to 99% yield) under mild conditions. The effects of catalyst loading, Lewis acid, Grignard reagent loading, and reaction temperature on the yield were investigated. To the best of our knowledge, it
合作催化已被广泛认为是提高合成效率的最有效策略之一。开发了一种新的铱/铜助催化剂,用于氧杂苯并降冰片二烯与各种格氏试剂的开环反应,从而以高收率(高达99%)提供了相应的抗-2-取代的1,2-二氢萘-1-醇。产量)在温和的条件下。研究了催化剂用量,路易斯酸,格利雅试剂用量和反应温度对产率的影响。据我们所知,它是氧杂双环烯烃与格氏试剂亲核体以反式-立体选择性方式开环反应的第一个例子。