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-memberedrings 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-memberedring) were the main products when Sc(OTf)3 was employed.