N-Heterocyclic Carbene-Catalyzed Formal Intramolecular [3 + 2] Annulations of Cyclohexadienone-Tethered Ynals
作者:Ya-Jie Wang、Wen-Yu Kang、Yi-Wen Zhao、Yu-Hui Wang、Ping Tian
DOI:10.1021/acs.orglett.4c00950
日期:——
A formal [3 + 2] annulation of cyclohexadienone-tethered ynals is enabled by an N-heterocyclic carbene (NHC) catalyst, affording a tricyclo[6.2.1.04,11]undecane framework. This study represents the first demonstration of using C═C double bonds as the reaction partner in the NHC-catalyzed annulation of ynals. This strategy is characterized by mild reaction conditions and 100% atom economy as well as
N-杂环卡宾 (NHC) 催化剂可以实现环己二烯酮系链炔的正式 [3 + 2] 环化,从而提供三环[6.2.1.0 4,11 ]十一烷骨架。这项研究首次证明了使用 C=C 双键作为 NHC 催化的 ynals 成环反应中的反应伙伴。该策略具有反应条件温和、100%原子经济性以及较高的催化性能和效率的特点。