The invention provides a therapeutic drug for ischemic stroke. The therapeutic drug has the formula (I)
wherein each symbol is as defined herein, or a pharmacologically acceptable salt thereof, or a solvate thereof, as an active ingredient.
Palladium(0)-Catalyzed Amination, Stille Coupling, and Suzuki Coupling of Electron-Deficient Aryl Fluorides
作者:Young Mi Kim、Shu Yu
DOI:10.1021/ja028966t
日期:2003.2.19
coupling in the presence of Pd(PPh3)4, and the reactions afforded the coupling products in 28-86% yields. The control experiments showed no sign of reaction in the absence of palladium. These results were in agreement with the oxidative addition/reductive elimination pathway, where the oxidative addition could conceivably proceed via the SNAr mechanism.
Catalytic reductive cyclization of 2-nitrobiphenyls using phenyl formate as CO surrogate: A robust synthesis of 9H-carbazoles
作者:Doaa R. Ramadan、Francesco Ferretti、Fabio Ragaini
DOI:10.1016/j.jcat.2022.03.024
日期:2022.5
A palladium/phenanthroline catalyzed reductive cyclization of o-nitrobiphenyls to 9H-carbazoles operated by in situ released CO is described. In the present method, the presence of phenyl formate is essential to avoid the use of high-pressure equipment and allows to perform the reaction in a single thick-walled glass tube. The identity of the base, which catalyzes the formate decomposition, is crucial
描述了通过原位释放的 CO操作的钯/菲咯啉催化的邻硝基联苯还原环化为 9 H-咔唑。在本方法中,甲酸苯酯的存在对于避免使用高压设备是必不可少的,并且允许在单个厚壁玻璃管中进行反应。催化甲酸盐分解的碱的特性对反应的选择性至关重要。催化剂的稳定性受氯阴离子存在的影响。咔唑产率通常高于之前报道的使用加压 CO 的产率。优化的催化系统具有出色的稳定性和耐湿性和耐空气性,可以在低催化剂负载下进行反应。
NOVEL TETRADENTATE PLATINUM COMPLEXES
申请人:Xia Chuanjun
公开号:US20120223634A1
公开(公告)日:2012-09-06
Novel phosphorescent tetradentate platinum (II) compounds comprising a twisted aryl group are provided. Also provided are novel phosphorescent tetradentate platinum (II) compounds comprising an imidazo[1,2-f]phenanthridine moiety. The compounds may be used in organic light emitting devices to provide improved device efficiency, line shape and lifetime.
Novel phosphorescent tetradentate platinum (II) compounds comprising a twisted aryl group are provided. Also provided are novel phosphorescent tetradentate platinum (II) compounds comprising an imidazo[1,2-f]phenanthridine moiety. The compounds may be used in organic light emitting devices to provide improved device efficiency, line shape and lifetime.