Phenanthrene Synthesis by Eosin Y-Catalyzed, Visible Light- Induced [4+2] Benzannulation of Biaryldiazonium Salts with Alkynes
作者:Tiebo Xiao、Xichang Dong、Yanchi Tang、Lei Zhou
DOI:10.1002/adsc.201200569
日期:2012.11.26
A metal-free, visible light-induced [4+2] benzannulation of biaryldiazonium salts with alkynes was developed. With eosin Y as photoredox catalyst, a variety of 9-substituted or 9,10-disubstitutedphenanthrenes were obtained via a cascade radical addition and cyclization sequence.
Gold-catalyzed efficient tandem assembly of terminal alkynes and arynes: synthesis of alkynylated biphenyl derivatives
作者:Chunsong Xie、Yuhong Zhang、Yuzhu Yang
DOI:10.1039/b806821f
日期:——
Gold catalysts have been found to catalyze the tandem assembly of arynes and terminal alkynes efficiently in the presence of CuI under mild reaction conditions to provide useful alkynylated biphenyl derivatives.
Effects of the Trifluoromethyl Group on the Emission Efficiency of Red Phosphorescent Iridium(III) Complexes
作者:Seo Yun Lee、Dong Myung Shin
DOI:10.1166/jnn.2018.15317
日期:2018.7.1
three novel phosphorescent iridium(III) complexes, namely (PT-TFP)2Ir(tmd), (PT-P)2Ir(tmd), and (MN-TFP)2Ir(tmd), were synthesized. All three complexes were phosphorescent red-emitting diode materials. The main ligands were synthesized by the Suzuki coupling reaction, and comprised an electron donor and an electron acceptor group. Subsequently, the iridium(III) complexes were synthesized by the Nonoyama
Synthesis and characterization of red phosphorescent iridium(Ⅲ) complexes based on electron-acceptor modulation of main ligand for high efficiency organic light-emitting diodes
作者:Sang-Yong Park、Hyun-Kyung Kim、Dong-Myung Shin
DOI:10.1080/15421406.2016.1200941
日期:2016.9
phosphorescent iridium(Ⅲ) complexes, (PT-TFP)2Ir(tmd), (PT-P)2Ir(tmd), and (PT-MP)2Ir(tmd) were synthesized for highly efficient red emitter of the organic light-emitting diodes (OLEDs). The main ligands consisted of electron-donor (phenanthren) and electron-acceptor (trifluoromethyl pyridine, pyridine, and methyl pyridine) were synthesized by Suzuki coupling reaction. The iridium(Ⅲ) complexes based on main
Synthesis and characterization of phosphorescent platinum and iridium complexes with cyclometalated corannulene
作者:John W. Facendola、Martin Seifrid、Jay Siegel、Peter I. Djurovich、Mark E. Thompson
DOI:10.1039/c4dt03541k
日期:——
Synthesis, structural and characterization data are provided for Pt(II) and Ir(III) complexes cyclometalated with 2-(corannulene)pyridine (corpy), (corpy)Pt(dpm) and (corpy)Ir(ppz)2 (dpm = dipivaloylmethanato, ppz = 1-phenylpyrazolyl). A third compound, (phenpy)Ir(ppz)2 (phenpy = 2-(5-phenanthryl)pyridyl), was also prepared to mimic the steric bulk of (corpy)Ir(ppz)2. X-ray analysis reveals bowl depths
合成,针对铂(提供的结构和表征数据II)和Ir(III)络合物环金属与2-(碗烯)吡啶(corpy),(corpy)的Pt(dpm)的和(corpy)IR(PPZ)2(DPM =二戊酰基甲酰基,ppz = 1-苯基吡唑基)。还制备了第三种化合物(phenpy)Ir(ppz)2(phenpy = 2-(5-菲基)吡啶基),以模拟(corpy)Ir(ppz)2的空间体积。X射线分析显示,(实体)Pt(dpm)的碗深度为0.895Å,(实体)Ir(ppz)2的碗深度为0.837Å 。两种复合物都没有在晶格中显示碗对碗的堆叠。在具有阻挡层的溶液中观察到归因于corrannulene碗反型的(corp)Ir(ppz)2的通量过程(ΔG‡ = 13 kcal mol -1)和速率( k = 2.5×10 3 s -1),使用可变温度1 H NMR光谱法测定。所有配合物在室温下均显示红色磷光,溶液中的量子产率为0