Divergent Access to Seven/Five-Membered Rings Based on [1,6]-Hydride Shift/Cyclization Process
作者:Daiki Hoshino、Keiji Mori
DOI:10.1021/acs.orglett.1c03523
日期:2021.12.17
We have achieved a divergent access to seven/five-membered rings based on a [1,6]-hydride shift/cyclization process from benzylidenemalonate with an o-alkoxymethyl group. Whereas Yb(OTf)3 afforded benzoxepines (with a seven-membered ring) selectively, indanes (with a five-membered ring) were the main products when Sc(OTf)3 was employed.
我们已经实现了基于 [1,6]-氢化物移位/环化过程从带有邻烷氧基甲基的亚苄基丙二酸酯获得七/五元环的不同途径。Yb(OTf) 3选择性地提供苯并氧杂环庚烷(具有七元环),而使用Sc(OTf) 3时,茚满(具有五元环)是主要产物。