TRIP-Catalyzed Asymmetric Synthesis of (+)-Yatein, (−)-α-Conidendrin, (+)-Isostegane, and (+)-Neoisostegane
作者:Peter Hartmann、Mattia Lazzarotto、Lorenz Steiner、Emmanuel Cigan、Silvan Poschenrieder、Peter Sagmeister、Michael Fuchs
DOI:10.1021/acs.joc.9b00065
日期:2019.5.3
The asymmetric allylation under the assistance of catalytic amounts of 3,3′-bis(2,4,6-triisopropylphenyl)-1,1′-binaphthyl-2,2′-diyl hydrogen phosphate (TRIP) allows the concise construction of the lignan scaffold from simple aldehydes and allylic bromides with full control of the two formed stereocenters. This young methodology has been employed to synthesize four naturally and pharmaceutically active
在催化量的 3,3'-双(2,4,6-三异丙基苯基)-1,1'-联萘-2,2'-二基磷酸氢酯 (TRIP) 的帮助下发生的不对称烯丙基化允许简明地构建木酚素支架来自简单的醛和烯丙基溴,完全控制两个形成的立体中心。这种年轻的方法已被用于合成四种天然和药物活性木酚素。二苄基丁内酯、四氢化萘和二苯并环辛二烯类的成员已经按照四步合成路线以 40-47% 的总产率合成。