Photoinduced Electron Transfer Promoted Radical Ring Expansion and Cyclization Reactions of α-(ω-Carboxyalkyl) β-Keto Esters
作者:Keisuke Nishikawa、Tomoki Ando、Kousuke Maeda、Toshio Morita、Yasuharu Yoshimi
DOI:10.1021/ol303460u
日期:2013.2.1
Photoinduced electron transfer (PET) promoted decarboxylation of α-(ω-carboxyalkyl) β-keto esters undergoes radical ring expansion and cyclization reactions. This mild and environmentally friendly method can provide one-carbon expanded γ-keto esters and bicyclic alcohols, and the product distribution is strongly dependent on the length of the alkyl chain containing the terminal carboxylate group.
光诱导电子转移(PET)促进α-(ω-羧烷基)β-酮酯的脱羧反应经历自由基扩环和环化反应。这种温和且环保的方法可提供单碳膨胀的γ-酮酯和双环醇,并且产物的分布在很大程度上取决于包含末端羧酸酯基团的烷基链的长度。