α‑Acyl-α-diazoacetates in Transition-Metal-Free β‑Lactam Synthesis
收藏Figshare2019-08-21 更新2026-04-29 收录
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https://figshare.com/articles/dataset/_Acyl-_-diazoacetates_in_Transition-Metal-Free_Lactam_Synthesis/9759989
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资源简介:
Thermally promoted reaction of α-acyl-α-diazoacetates with imines has been investigated. The transformation, earlier reported predominantly under transition metal catalyzed conditions, delivers α-alkoxycarbonyl-substituted β-lactams with outstanding diastereoselectivity. DFT calculations performed in order to evaluate energetically feasible reaction pathways revealed the intermediacy of 1,3-oxazin-4-one intermediates hitherto never implicated in the Staudinger synthesis of β-lactams.
创建时间:
2019-08-21



