Mn(III)-based C–C bond formation: regioselective α′-allylation of various α,β-unsaturated, α and β-alkoxy α,β-unsaturated ketones
作者:Cihangir Tanyeli、Devrim Özdemirhan
DOI:10.1016/j.tet.2005.06.031
日期:2005.8
The Manganese(III) -based regioselective alpha'-keto radical generation of unsaturated ketones is a versatile synthetic procedure with broad applicability. The generated alpha'-keto radical slowly creates a metal enolate in a solvent at reflux. The resultant metal enolate affords the corresponding alpha'-allylated alpha,beta-unsaturated ketones in good yields. This method is the first example of the metal mediated regioselective alpha'-allylation of alpha,beta-unsaturated ketones. The ketones that have alpha or beta-alkoxy groups also work efficiently. (c) 2005 Elsevier Ltd. All rights reserved.