Enantioselective Radical Hydroacylation of α,β-Unsaturated Carbonyl Compounds with Aldehydes by Triplet Excited Anthraquinone
作者:Yao Luo、Qi Wei、Liangkun Yang、Yuqiao Zhou、Weidi Cao、Zhishan Su、Xiaohua Liu、Xiaoming Feng
DOI:10.1021/acscatal.2c04047
日期:2022.10.21
hydroacylation of α-substituted α,β-unsaturated carbonyl compounds through direct hydrogen atom transfer in the presence of the photocatalyst anthraquinone and chiral N,N′-dioxide/metal complexes. This mild, robust method provided a facile access to a wide array of chiral ketones with α-tertiary stereocenters by using the readily available aldehyde as a hydroacylation reagent. Based on the spectroscopy experiments
手性酮的合成一直是化学研究的长期焦点。对映选择性自由基加氢酰化作为获得各种手性酮的有用策略,仅限于与 β-取代烯烃的反应,其中通过立体控制的自由基加成到前手性烯烃产生 β-立体中心。在此,我们通过在光催化剂蒽醌和手性N ,'-二氧化物/金属配合物。这种温和、稳健的方法通过使用容易获得的醛作为氢化酰化试剂,提供了一种容易获得具有 α-叔立体中心的手性酮的方法。基于光谱实验和控制实验以及DFT计算,提出了氢原子转移/自由基加成/对映选择性反向氢原子转移序列。