1569261-53-5Relevant academic research and scientific papers
Photo-induced copper-catalyzed C-H chalcogenation of azoles at room temperature
Gandeepan, Parthasarathy,Mo, Jiayu,Ackermann, Lutz
, p. 5906 - 5909 (2017)
Inexpensive copper catalysts enabled direct C-H chalcogenations at ambient temperature by means of photo-induced catalysis. The expedient copper catalysis set the stage for C-S and C-Se bond formation from readily accessible non-volatile elemental chalcogens. The photo-assisted copper catalysis manifold proved suitable for a wide range of substrates with good functional group tolerance and exhibited high catalytic efficacy even at a reaction temperature of 25 °C.
Copper-Catalyzed Three-Component Coupling Reaction of Azoles, Se Powder, and Aryl Iodides
Gao, Chao,Wu, Ge,Min, Lin,Liu, Miaochang,Gao, Wenxia,Ding, Jinchang,Chen, Jiuxi,Huang, Xiaobo,Wu, Huayue
, p. 250 - 255 (2017/04/26)
A copper-catalyzed three-component coupling reaction of azoles, Se powder, and aryl iodide is described for the first time. This transformation provides a straightforward and facile pathway to synthesis 2-arylselanyl-azoles via a copper-catalyzed double C-Se bonds formation process. This reaction is attractive and practical since the cheap copper catalyst is employed and it does not require ligands, proceeds in generally good yields, and has a broad range of functional groups tolerance.
Copper oxide nanoparticle-catalyzed chalcogenation of the carbon-hydrogen bond in thiazoles: Synthesis of 2-(organochalcogen) thiazoles
Rosario, Alisson R.,Casola, Kamila K.,Oliveira, Carla E.S.,Zeni, Gilson
supporting information, p. 2960 - 2966 (2014/03/21)
We present (homepage: www.ufsm.br) herein the application of copper nanoparticles/dio-rganyl dichalcogenides to promote the synthesis of 2-(organochalcogen)thiazoles via direct carbon-hydro-gen bond activation in thiazoles. A systematic study of the catalytic system revealed that the presence and amount of base played an essential role in this reaction. The results revealed that electron-donating and electron-withdrawing substituents, in the aromat-ic ring bonded to the chalcogen atom of diorganyl di-chalcogenides, required one equiv. of base, while when neutral substituents were present two equiv. of base were needed to deliver the products in similar yields.
