[(C⁁N⁁N)Pt(CC)nR] (HC⁁N⁁N = 6-aryl-2,2′-bipyridine, n = 1–4, R = aryl, SiMe3) as a new class of light-emitting materials and their applications in electrophosphorescent devicesElectronic supplementary information (ESI) available: General experimental procedure, analytical and spectral characterizations, OLED fabrication and performance. See http://www.rsc.org/suppdata/cc/b1/b108793b/
作者:Wei Lu、Bao-Xiu Mi、Michael C. W. Chan、Zheng Hui、Nianyong Zhu、Shuit-Tong Lee、Chi-Ming Che
DOI:10.1039/b108793b
日期:2002.1.30
Tridentatecyclometalatedplatinum(II) complexes bearing sigma-alkynyl ligands exhibit tunable photoluminescence and enhanced stability during vacuum deposition; OLEDs based on these materials display orange to red electrophosphorescence with low turn-on voltages (approximately 4 V), maximum luminance approaching 10,000 cd m-2 and efficiency up to 4.2 cd A-1.
带有sigma-炔基配体的三齿环金属化铂(II)配合物在真空沉积过程中显示出可调光致发光和增强的稳定性;基于这些材料的OLED显示橙色至红色的电致磷光,具有低的开启电压(约4 V),最大亮度接近10,000 cd m-2,效率高达4.2 cd A-1。
Me3SiCl accelerated conjugate addition of stoichiometric organocopper reagents
Chlorotrimethylsilane, particularly if combined with hexamethylphosphoric triamide or 4-dimethylaminopyridine, strongly promote the conjugate addition of stoichiometric organocopperreagents.
Synthesis of Substituted Pyridine Derivatives via the Ruthenium-Catalyzed Cycloisomerization of 3-Azadienynes
作者:Mohammad Movassaghi、Matthew D. Hill
DOI:10.1021/ja060626a
日期:2006.4.1
respectively. The process involves the direct conversion of amides, including sensitive N-vinyl amides, to the corresponding trimethylsilyl alkynyl imines followed by a ruthenium-catalyzed protodesilylation and cycloisomerization. A wide range of new alkynyl imines are prepared and readily converted to the corresponding azaheterocycles.
A variety of N-vinyl and N-aryl amides were converted to the corresponding pyridine and quinoline derivatives, respectively. Amide activation and nucleophilic addition of copper(I) (trimethylsilyl)acetylide efficiently provided the desired alkynyl imines. Ruthenium-catalyzed protodesilylation and cycloisomerization of these imines gave the corresponding azaheterocycles.
Exploring the Anionic Reactivity of Ynimines, Useful Precursors of Metalated Ketenimines
作者:Anouar Laouiti、François Couty、Jérome Marrot、Taoufik Boubaker、Mohamed M. Rammah、Mohamed B. Rammah、Gwilherm Evano
DOI:10.1021/ol500749h
日期:2014.4.18
Insights into the reactivity of ynimines under anionic conditions are reported. They were shown to be excellent precursors of metalated ketenimines, which can be generated in situ by the reaction of ynimines with organolithium reagents or strong bases. The metalated ketenimines can then be trapped with various electrophiles and, depending on their substitution pattern, afford original and divergent entries