restricts their widespread application. Considering the ready availability and diversity of cyclic amines, we report a visible-light photocatalytic Barbier-type reaction of aziridines and azetidines with nonactivated aldehydes. A series of important γ- and δ-amino alcohols were synthesized in the presence of amines as electron donors. Moreover, this transition-metal-free protocol displays mild reaction
Barbier 型反应是一组经典的碳-碳键形成反应;然而,它们对
化学计量
金属的普遍使用限制了它们的广泛应用。考虑到环胺的易得性和多样性,我们报告了
氮丙啶和氮杂
环丁烷与未活化醛的可见光光催化 Barbier 型反应。在胺作为电子供体存在的情况下,合成了一系列重要的 γ- 和 δ-
氨基醇。此外,这种不含过渡
金属的方案显示出温和的反应条件、广泛的官能团耐受性和广泛的底物范围。机理研究表明,碳自由基和负碳离子可能作为关键中间体产生。