Diastereoselective Radical Hydroacylation of Alkylidenemalonates with Aliphatic Aldehydes Initiated by Photolysis of Hypervalent Iodine(III) Reagents
作者:Sermadurai Selvakumar、Ryu Sakamoto、Keiji Maruoka
DOI:10.1002/chem.201600425
日期:2016.5.4
Diastereoselective radical hydroacylation of chiral alkylidenemalonates with aliphatic aldehydes is realized by the combination of a hypervalent iodine(III) reagent and UV‐light irradiation. The reaction is initiated by the photolysis of hypervalent iodine(III) reagents under mild, metal‐free conditions, and is the first example of diastereoselective addition of acyl radicals to olefins to afford chiral
手性亚烷基丙二酸酯与脂族醛的非对映选择性自由基加氢酰化是通过高价碘(III)试剂和紫外线照射的结合实现的。该反应是通过在温和,无金属的条件下对高价碘(III)试剂进行光解而引发的,并且是将自由基自由基非对映选择性地加成到烯烃上,从而以高度立体选择性的方式提供手性酮的第一个实例。所获得的旋光性酮是有用的手性合成子,以(-)-亚甲基半乳糖苷的短形式合成为例。