High-Valent Pentamethylcyclopentadienylcobalt(III) or -iridium(III)-Catalyzed CH Annulation with Alkynes: Synthesis of Heterocyclic Quaternary Ammonium Salts
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- 作者：Ye-Xing Lao ; Shang-Shi Zhang ; Xu-Ge Liu ; Chun-Yong Jiang ; Jia-Qiang Wu ; Qingjiang Li ; Zhi-Shu Huang and Honggen Wang
- 刊名：Advanced Synthesis & Catalysis
- 出版年：2016
- 出版时间：June 30, 2016
- 年：2016
- 卷：358
- 期：13
- 页码：2186-2191
- 全文大小：1487K
- ISSN：1615-4169
文摘
Nine types of diversely fused heterocyclic quaternary ammonium salts were constructed through an oxidative CH annulation reaction. Both high-valent pentamethylcyclopentadienylcobalt(III) and pentamethylcyclopentadienyliridium(III) were found to be effective as catalyst for this reaction. Broad substrate scope and good functional group tolerance were observed.