1263145-44-3Relevant academic research and scientific papers
Preparation method and application of cyclometalated iridium complexes modified by electron-withdrawing groups
-
Paragraph 0034, (2020/07/02)
The invention relates to a preparation method and application of cyclometalated iridium complexes modified by electron-withdrawing groups, belonging to the technical field of luminescent materials. According to the invention, substituted pyridine is used
Synthesis and properties of fluorinated cyclometalated Ir(III) complexes
Wang, Lei,Gao, Zhanming,Liu, Chun,Chen, Yan,Tao, Weitong,Lu, Lu
supporting information, (2020/07/20)
Two new fluorinated cationic cyclometalated Ir(III) complexes have been prepared and fully characterized. The effects of the position of the fluorine on the photophysical, redox properties and oxygen sensing behaviors of the Ir(III) complexes were investi
Palladium-catalyzed ligand-free and aqueous Suzuki reaction for the construction of (hetero)aryl-substituted triphenylamine derivatives
Liu, Chun,Rao, Xiaofeng,Song, Xinlong,Qiu, Jieshan,Jin, Zilin
, p. 526 - 531 (2013/04/10)
This paper reports an efficient synthesis of triphenylamine (TPA) derivatives via a palladium-catalyzed Suzuki reaction of (hetero)aryl halides with 4-(diphenylamino)phenylboronic acid (DPBA) in aqueous ethanol under aerobic and ligand-free conditions. Heteroaryl halides, namely pyridyl bromides, quinolyl bromides, pyrimidinyl bromides, 2-chloropyrazine and sulfur-containing heteroaryl bromides, could react smoothly with DPBA, affording good to excellent yields under mild conditions. In addition, aryl bromides were also successfully employed in the cross-couplings with DPBA and furnished the products in high yields at room temperature. The cross-coupling of 4-bromobenzonitrile with DPBA gave the desired product in a quantitative yield within 2 min, resulting in a TOF up to 5820 h-1.
Very fast, ligand-free and aerobic protocol for the synthesis of 4-aryl-substituted triphenylamine derivatives
Liu, Chun,Ni, Qijian,Qiu, Jieshan
experimental part, p. 3009 - 3015 (2011/06/28)
A fast, convenient and ligand-free protocol for the synthesis of a series of 4-aryl-substituted triphenylamine derivatives by a palladium-catalysed aerobic Suzuki reaction of aryl halides with [4-(diphenylamino)phenyl]boronic acid in aqueousiPrOH is described. Importantly, both aryl bromides and heteroaryl halides afforded good to excellent yields under mild conditions. A facile, efficient and general ligand-free Suzuki reaction in aqueous iPrOH is described. Under the optimized conditions, both aryl bromides and heteroaryl halidesreacted rapidly with [4-(diphenylamino)phenyl]boronic acid, providing a series of 4-aryl-substituted triphenylamine derivatives in good to excellent yields.
