Direct α-Benzylation of Methyl Enol Ethers with Activated Benzyl Alcohols: Its Rearrangement and Access to (±)-Tetrahydronyasol, Propterol A, and 1,3-Diarylpropane
作者:Tapan Kumar Jena、Faiz Ahmed Khan
DOI:10.1021/acs.joc.9b02064
日期:2019.11.1
Herein, we report a one-pot Lewis acid mediated synthesis of bi- and triarylpropanal derivatives and their corresponding isomeric ketones from aromatic enol ethers. This transformation takes place via nucleophilic attack of enol ethers to electron-rich benzyl alcohols. The substrate scope of this indicates that it might proceed via quinomethoxy methide as a key intermediate leading to propanal derivatives
在本文中,我们报道了一锅路易斯酸介导的从芳族烯醇醚合成的二芳基和三芳基丙醛衍生物及其相应的异构酮的合成。这种转化是通过烯醇醚向富电子的苄醇的亲核攻击而发生的。该物质的底物范围表明它可能通过喹甲氧基甲基化物作为导致丙醛衍生物的关键中间体进行,并且它们的Wagner-Meerwein重排提供了异构体酮。此外,该方法学适用于(±)-四氢nyasol,丙醇A和1,3-二芳基丙烷的合成。