Iron-Catalyzed Cyclotrimerization of Terminal Alkynes by Dual Catalyst Activation in the Absence of Reductants
作者:Davide Brenna、Matteo Villa、Tim N. Gieshoff、Fabian Fischer、Marko Hapke、Axel Jacobi von Wangelin
DOI:10.1002/anie.201705087
日期:2017.7.10
metals under mild conditions is at the heart of sustainable synthesis. The cyclotrimerization of alkynes is a valuable atom‐efficient reaction in organic synthesis that is enabled by several metal catalysts, including iron. This study reports an effective iron‐catalyzed cyclotrimerization for the regioselective synthesis of 1,2,4‐substituted arenes (1 mol % catalyst, toluene, 20 °C, 5 min). A dual activation
作者:Wei-Zhen Wang、Qiang Wang、Xinglei He、Yi-Han Shen、Zi’ang Zhai、Ruiying Zhang、Yuanming Li、Ke-Yin Ye
DOI:10.1021/acs.orglett.4c00445
日期:2024.3.22
preparation of polycyclic aromatichydrocarbons (PAHs) by the Scholl reaction is typically performed by using superstoichiometric oxidants. Herein, we develop an electrochemical continuous-flow Scholl reaction to access PAHs that features a reduction in the use of supporting electrolytes and easy scale-up without changing the reaction conditions and setups. This reaction allows the synthesis of distorted