Asymmetric Synthesis of 1,4‐Dicarbonyl Compounds from Aldehydes by Hydrogen Atom Transfer Photocatalysis and Chiral Lewis Acid Catalysis
作者:Yulong Kuang、Kai Wang、Xiangcheng Shi、Xiaoqiang Huang、Eric Meggers、Jie Wu
DOI:10.1002/anie.201910414
日期:2019.11.18
pharmaceutical drug synthesis. We herein report a mild pathway for the efficient enantioselective synthesis of these compounds directly from aldehydes through synergistic cooperation between a neutral eosin Y hydrogen atom transfer photocatalyst and a chiral rhodium Lewis acid catalyst. This method is distinguished by its operational simplicity, abundant feedstocks, atom economy, and ability to generate products
富含对映体的1,4-二羰基化合物是天然产物和药物合成中的多功能合成子。我们在此报告了通过中性曙红Y氢原子转移光催化剂与手性铑路易斯酸催化剂之间的协同合作直接从醛类有效地对映选择性合成这些化合物的温和途径。该方法的特点是操作简便,原料丰富,原子经济,并且能够以高收率(高达99%)和高对映选择性(高达99%ee)生成产品。