1269925-87-2Relevant academic research and scientific papers
Photo-Induced Ruthenium-Catalyzed C?H Arylations at Ambient Temperature
Ackermann, Lutz,Casnati, Anna,Korvorapun, Korkit,Kuniyil, Rositha,Struwe, Julia,Waeterschoot, Marjo,Zangarelli, Agnese
supporting information, p. 18103 - 18109 (2020/08/21)
Ambient temperature ruthenium-catalyzed C?H arylations were accomplished by visible light without additional photocatalysts. The robustness of the ruthenium-catalyzed C?H functionalization protocol was reflected by a broad range of sensitive functional groups and synthetically useful pyrazoles, triazoles and sensitive nucleosides and nucleotides, as well as multifold C?H functionalizations. Biscyclometalated ruthenium complexes were identified as the key intermediates in the photoredox ruthenium catalysis by detailed computational and experimental mechanistic analysis. Calculations suggested that the in situ formed photoactive ruthenium species preferably underwent an inner-sphere electron transfer.
Stoichiometric to catalytic reactivity of the aryl cycloaurated species with arylboronic acids: Insight into the mechanism of gold-catalyzed oxidative C(sp2)-H arylation
Wu, Qian,Du, Chenglong,Huang, Yumin,Liu, Xingyan,Long, Zhen,Song, Feijie,You, Jingsong
, p. 288 - 293 (2015/02/19)
Based on the well-defined five-membered aryl gold(iii) complexes, [Au(tpy)X2] (3a and 3b) and [AuBr(Ph)(tpy)] (7), as well as the aryl gold(iii) complex [AuCl2(Ph)(tpy)] (8) (tpy = 2-(o-tolyl)pyridine) as reliable models, we present a detailed study of the mechanism for gold(iii)-catalyzed oxidative cross-coupling reactions between cycloaurable arenes and arylboronic acids. Here we report the direct evidence for a mechanistic proposal including arene C-H activation, transmetallation and biaryl reductive elimination. The chelation-assisted C-H activation strategy has been used for the development of the gold(iii)-catalyzed C-H bond arylation of arenes with aryl reagents to forge extended π-conjugated systems. This journal is
Catalytic electrochemical C-H iodination and one-pot arylation by ON/OFF switching of electric current
Aiso, Hiroko,Kochi, Takuya,Mutsutani, Hitoshi,Tanabe, Takamasa,Nishiyama, Shigeru,Kakiuchi, Fumitoshi
, p. 7718 - 7724 (2012/10/29)
Palladium-catalyzed electrochemical iodination and one-pot arylation of arylpyridines are described. Ortho-selective C-H iodination proceeded via dual activation of each substrate by a palladium catalyst and an electrode. Various aryl groups were introduc
Ru-catalyzed aerobic oxidative coupling of arylboronic acids with arenes
Li, Hong,Wei, Wei,Xu, Yuan,Zhang, Chao,Wan, Xiaobing
supporting information; experimental part, p. 1497 - 1499 (2011/03/22)
A Ru-catalyzed oxidative coupling of arenes with boronic acids using molecular oxygen via direct C-H activation is reported. Both the scope and the mechanism of the process are discussed.
