A copper(II)-catalyzed protocol to construct trans-configured β-lactams and spirocyclic β-lactams from oximes and methyl propiolate has been developed, which features excellent substrate flexibility and diastereoselectivity (up to >99:1 dr). In situ FT-IR mechanistic experiments support that ketene species might be involved in the formation of β-lactams.
已经开发了一种
铜 (II) 催化的协议,用于从
肟和
丙炔酸甲酯构建反式配置的β-内酰胺和螺环 β-内酰胺,其具有出色的底物灵活性和非对映选择性(高达 >99:1 dr)。原位 FT-IR 机械实验支持
乙烯酮物质可能参与 β-内酰胺的形成。