From Simple Ugi Adducts to Indanes and δ-Amidomalonates: New Manganese(III)-Induced Radical Cascades
作者:Laurent El Kaim、Laurence Grimaud、Emilie Vieu
DOI:10.1021/ol701678d
日期:2007.10.1
A complete change of the traditional Ugiadducts framework has been obtained using new radical cascades as Ugi post-condensation reactions. Indanes and delta-amidomalonates were thus obtained in a one-pot procedure from aromatic aldehydes under a sequence involving Ugi addition followed by treatment of the adducts with Mn(III) and malonate or beta-ketoester. The radical step probably involves an intramolecular