Copper Hydride-Catalyzed Conjugate Reduction-Aldol Addition Domino Reaction of<i>α</i>,<i>β</i>-Unsaturated Carboxylates with Ketones
作者:Zengchang Li、Lan Jiang、Zhengning Li、Huiying Chen
DOI:10.1002/cjoc.201300036
日期:2013.4
Copper hydride‐catalyzed conjugate reduction‐intermolecular aldol addition domino reactions were realized using α,β‐unsaturated carboxylates as hydride acceptors and a silane as the reducing reagent. High diastereoselectivities were achieved with 4,5‐bis(diphenylphosphino)‐9,9‐dimethylxanthene as the ligand and tert‐butyl acrylate as the hydride acceptor.
以α,β-不饱和羧酸盐为氢化物受体,以硅烷为还原剂,实现了氢化铜催化的共轭还原-分子间羟醛加成多米诺反应。以4,5-双(二苯基膦基)-9,9-二甲基x吨为配体,以丙烯酸叔丁酯为氢化物受体实现了较高的非对映选择性。