polysubstituted quinolinesfrom o-vinyl anilines and aldehydes. The reaction proceeds in a cascade manner through condensation, electrocyclization and dehydrogenation, and gives access to a wide range of quinolines with alkyl and/or aryl substituents as demonstrated with 40 examples. The metal-free catalytic procedure allows a heterogeneous protocol for the synthesis of various polysubstituted quinolines. The
Transition metal complexes of N-heterocyclic carbenes, method of preparation and use in transition metal catalyzed organic transformations
申请人:Organ G. Michael
公开号:US20070073055A1
公开(公告)日:2007-03-29
The present invention relates to catalysts of transition metal complexes of N-heterocyclic carbenes, their methods of preparation and their use in chemical synthesis. The synthesis, ease-of-use, and activity of the compounds of the present invention are substantial improvements over in situ catalyst generation. Further, the transition metal complexes of N-heterocyclic carbenes of the present invention may be used as precatalysts in metal-catalyzed cross-coupling reactions.
Highlyefficient 2-(thiophen-2-yl)quinoline-based phosphorescentiridium(III) complexes bearing 2-(3-(trifluoromethyl)-1H-1,2,4-triazol-5-yl)pyridine or picolinic acid as ancillary ligands are designed and synthetised. The variation of ancillary ligands is attempted to finely tune the photophysical properties of these complexes, especially the solution phosphorescent quantum yields (ΦPL), full width
高效的2-(噻吩-2-基)喹啉基磷光铱(III)配合物,带有2-(3-(三氟甲基)-1 H -1,2,4-三唑-5-基)吡啶或吡啶甲酸设计并合成了辅助配体。辅助配体的变化试图微调这些复合物的光物理性质,特别是溶液磷光量子产率(Φ PL),在半最大值(FWHM)全宽,等等。吡啶羧酸类复合显示器的略红-与基于三唑并吡啶的双峰发射相比,双峰发射发生了变化。的配合物表现出明亮的发射具有宽FWHM高达83纳米,且排放在红色区域具有非常高的绝对Φ PL解决方案中最高可达0.76。此外,已经制造了具有优异的颜色稳定性的高性能红色和三色基白色有机发光二极管(OLED)。红色和白色OLED的最大外部量子效率分别可以达到16.2%和15.1%。白色OLED的最大电流效率和功率效率分别高达35.5 cd A -1和34.0 lm W -1。特别是,设计的白色OLED在宽工作电压范围内具有出色的光谱稳定性,并且1
Study of the characteristics of phosphorescent red organic light emitting diode using new iridium(III) complex with thiophene as dopant material
作者:Seo Yun Lee、Song Eun Lee、Ye Na Oh、Dong Myung Shin、Young Kwan Kim、Hyun Kyung Kim
DOI:10.1080/15421406.2018.1450946
日期:2017.12.12
ABSTRACT New red phosphorescent iridium(III) complex, (TP-MQ)2Ir(tmd) was synthesized for red emitter of the phosphorescentorganic light-emitting diodes (phOLEDs). The ligands have sites of both the electron donor and acceptor in a molecule. The main ligands consisted of electron-donors Thiophene and electron-acceptor 4-methylquinoline were synthesized by Suzuki coupling reaction. The iridium(III) complexes