Enantioselective Synthesis of Cyclobutenes by Intermolecular [2+2] Cycloaddition with Non-<i>C</i><sub>2</sub> Symmetric Digold Catalysts
作者:Cristina García-Morales、Beatrice Ranieri、Imma Escofet、Laura López-Suarez、Carla Obradors、Andrey I. Konovalov、Antonio M. Echavarren
DOI:10.1021/jacs.7b07651
日期:2017.10.4
The enantioselective intermolecular gold(I)-catalyzed [2+2] cycloaddition of terminal alkynes and alkenes has been achieved using non-C2-chiral Josiphos digold(I) complexes as catalysts, by the formation of the monocationic complex. This new approach has been applied to the enantioselective total synthesis of rumphellaone A.
使用非 C2-手性 Josiphos digold(I) 配合物作为催化剂,通过形成单阳离子配合物,实现了对映选择性分子间金 (I) 催化的 [2+2] 环加成反应。这种新方法已应用于对映选择性全合成 rumphellaone A。