Donor‐Acceptor Cyclopropanes: Activation Enabled by a Single, Vinylogous Acceptor
作者:Nils L. Ahlburg、Oliver Hergert、Peter G. Jones、Daniel B. Werz
DOI:10.1002/anie.202214390
日期:2023.1.2
A new class of donor-acceptor cyclopropanes bearing only a single, vinylogousacceptor moiety is presented. The system is capable of cycloadditions through Brønsted or Lewis acid catalysis with numerous reagents: aldehydes, ketones, thioketones, nitriles, naphth-2-ols, cyclopropanes, nitrones and isobenzofurans. The mechanism was explored in detail by kinetic and mechanistic experiments.