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《科学》 第391卷 第6781期 · 2026年1月8日 · 中文解读

利用三原子重排实现立体选择性骨架重排

Leveraging triatropic rearrangements for stereoselective skeletal reshuffling · Y. Niu et al.
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这篇讲什么
本文报道了一类新型周环反应——三原子重排,通过断裂三个σ键并形成两个σ键和一个π键,实现了环氧化合物的立体选择性碳迁移,为复杂环戊烷的构建提供了新策略。
原文开头
Yuan Niu1†, Yu Chen1†, Meng Zhou1, Huihui Zeng2, Ke Wang1, Peiyuan Yu1,2*, Zhe Dong1,2* Pericyclic reactions transform simple precursors into architecturally complex products with exquisite stereocontrol, making them central tools in synthesis. Here, we report a class of pericyclic reactions, called triatropic rearrangements, wherein three σ- bonds are broken concomitantly with the formation of two σ- bonds and one π- bond, all in a single transition state. Within this mechanistic manifold, carbon- oxygen bonds in epoxides are stereoselectively converted into carbon- carbon bonds in a process mediated by organoboron reagents. Epoxycycloalkanes undergo highly chemo- , regio- , and stereoselective carbon migration to furnish ring- contracted products with broad generality. …
摘自《科学》(Science)第391卷 第6781期 · 2026年1月8日,Y. Niu et al.。仅引用开头一小段供了解文章,版权归原刊所有,全文请阅读原刊。
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