Ru‐NHC‐Catalyzed Asymmetric Hydrogenation of 2‐Quinolones to Chiral 3,4‐Dihydro‐2‐Quinolones
作者:Tianjiao Hu、Lukas Lückemeier、Constantin Daniliuc、Frank Glorius
DOI:10.1002/anie.202108503
日期:2021.10.18
Direct enantioselective hydrogenation of unsaturated compounds to generate chiral three-dimensional motifs is one of the most straightforward and important approaches in synthetic chemistry. We realized the Ru(II)-NHC-catalyzed asymmetric hydrogenation of 2-quinolones under mild reaction conditions. Alkyl-, aryl- and halogen-substituted optically active dihydro-2-quinolones were obtained in high yields
不饱和化合物的直接对映选择性氢化产生手性三维图案是合成化学中最直接和最重要的方法之一。我们在温和的反应条件下实现了Ru(II)-NHC催化的2-喹诺酮类药物的不对称氢化。以高产率获得烷基、芳基和卤素取代的光学活性二氢-2-喹诺酮类化合物,并具有中等至优异的对映选择性。该反应为构建简单的手性 3,4-二氢-2-喹诺酮类化合物提供了一种高效且原子经济的途径。所需产物可进一步还原为四氢喹啉和八氢喹诺酮。