Ruthenium-Catalyzed Brook Rearrangement Involved Domino Sequence Enabled by Acylsilane–Aldehyde Corporation
作者:Xiunan Lu、Jian Zhang、Liangyao Xu、Wenzhou Shen、Feifei Yu、Liyuan Ding、Guofu Zhong
DOI:10.1021/acs.orglett.0c01983
日期:2020.7.17
A ruthenium-catalyzed [1,2]-Brook rearrangement involved domino sequence is presented to prepare highly functionalized silyloxy indenes with atomic- and step-economy. This domino reaction is triggered by acylsilane-directed C–H activation, and the aldehyde controlled the subsequent enol cyclization/Brook Rearrangement other than β–H elimination. The protocol tolerates a broad substitution pattern,
提出了一种钌催化的涉及多米诺骨牌序列的[1,2]-布鲁克重排,以原子和步骤经济的方式制备高功能化的甲硅烷氧基茚。这种多米诺骨牌反应是由酰基硅烷引导的 C-H 活化引发的,醛控制着随后的烯醇环化/布鲁克重排,而不是 β-H 消除。该方案允许广泛的取代模式,并且甲硅烷氧基茚的进一步合成精制允许获得各种有趣的茚和茚满酮衍生物。