Stereoselective Synthesis of Cyclohexane Derivatives: Tandem Lithium Iodide Mediated Intramolecular Conjugate Addition of Thiols to α,β-Bisenones
作者:SungYong Seo、Minseok Jeon、Chaeyoung Yun
DOI:10.1055/a-1754-7424
日期:2022.6
A tandem intramolecular conjugate addition reaction was conducted with α,β-bisenones as selected Michael acceptors which were converted into 1,2,3-trisubstituted six-membered rings in the presence of activated sulfur nucleophiles. The products were obtained in good to excellent yields (maximum yield: 99%). Various substituted α,β-bisenones and sulfur nucleophiles were examined to understand the substrate
使用 α,β-双烯酮作为选定的迈克尔受体进行串联分子内共轭加成反应,在活化的硫亲核试剂存在下将其转化为 1,2,3-三取代六元环。产品以良好至极好的收率获得(最大收率:99%)。检查了各种取代的 α,β-双烯酮和硫亲核试剂以了解反应的底物范围。仅分离出一种非对映异构体,因为碘化锂介导的烯醇捕获反应提高了涉及 1,2,3-三取代环己烷的反应的立体选择性。