Iodine-mediated Z-selective oxidation of ketones to α,β-unsaturated esters: synthesis and mechanistic studies
作者:Michael J. Zacuto、Dongwei Cai
DOI:10.1016/j.tetlet.2005.09.176
日期:2005.11
Z-selective oxidation of simple acyclic ketones to Z-2,3-trisubstituted α,β-unsaturatedesters is described. Enolates generated under the reaction conditions undergo double iodination followed by a Favorskii-related rearrangement to the unsaturated ester. This reaction represents the first stereoselective one-step transformation of ketones to α,β-unsaturatedesters. Mechanistic studies suggest that an