Forging Fluorine-Containing Quaternary Stereocenters by a Light-Driven Organocatalytic Aldol Desymmetrization Process
作者:Sara Cuadros、Luca Dell'Amico、Paolo Melchiorre
DOI:10.1002/anie.201706763
日期:2017.9.18
2-fluoro-substituted cyclopentane-1,3-diketones (1) leads to the stereoselective construction of valuable fluorine-containing quaternary stereocenters. The chemistry exploits the ability of a readily available amido-thiourea catalyst to selectively activate one of the enantiotopic carbonyl groups within 1 and promote an intermolecular aldol reaction of hydroxy-o-quinodimethanes, which are photochemically
破坏对称!非手性2-氟取代的环戊烷-1,3-二酮(1)的去对称化导致有价值的含氟季立体中心的立体选择性结构。化学利用了容易得到的酰氨基-硫脲催化剂,以选择性地激活内的对映羰基中的一个的能力1和促进的羟基的分子间醇醛缩合反应ø -quinodimethanes,其光化学从生成2。