A Fast Way to Fluorescence: A Fourfold Domino Reaction to Condensed Polycyclic Compounds
作者:Lutz F. Tietze、Christoph Eichhorst、Tim Hungerland、Markus Steinert
DOI:10.1002/chem.201402961
日期:2014.9.22
A fast and efficient palladium‐catalyzed fourfolddomino Sonogashira/double‐carbopalladation/CH‐activation reaction that converts simple aromatic systems into complex polycyclic hydrocarbons has been developed. A number of substituted products has thus been prepared in yields up to 89 %. The structural assignment has been confirmed by using single‐crystal X‐ray crystallography. The products show intriguing
一种快速和有效的钯催化的四倍多米诺的Sonogashira /双carbopalladation / C H-活化反应,其将简单芳族体系成复杂的多环烃已经研制成功。因此已经制备了许多取代的产物,产率高达89%。通过使用单晶X射线晶体学已确认了结构分配。该产品显示出令人着迷的荧光活性,因此可以用作化学传感器或荧光成像染料。
A Route to Regioselectively Functionalized Carbazoles, Dibenzofurans, and Dibenzothiophenes through Anionic Cyclization of Benzyne-Tethered Aryllithiums
作者:Roberto Sanz、Yolanda Fernández、M Pilar Castroviejo、Antonio Pérez、Francisco J. Fañanás
DOI:10.1021/jo060911c
日期:2006.8.1
available products, with 3.3 equiv of t-BuLi and further reaction with selected electrophiles gives rise to functionalized carbazole, dibenzofuran, and dibenzothiophene derivatives in a direct and regioselective manner. The process involves an anionic cyclization on a benzyne-tethered aryllithium intermediate.
The Studies of the Intramolecular C-F-H-N Hydrogen Bonding Using Covalently-Linked Base Pair Models of F and A
作者:Norio Shibata、Biplab K. Das、Kazuyuki Harada、Yoshio Takeuchi、Masahiko Bando
DOI:10.1055/s-2001-18103
日期:——
Both 1H NMR and X-ray studies revealed that C-F-H-N intramolecular hydrogen bonding is not observed even in covalently-linked base pair models of F and A. These results strongly support the Kool's hypothesis.
1H NMR 和 X 射线研究均表明,即使在 F 和 A 的共价连接碱基对模型中,也未观察到 C-F-H-N 分子内氢键。这些结果有力地支持了 Kool 的假设。
This invention relates to aryl carbonyl derivatives which are activators of glucokinase which may be useful for the management, treatment, control, or adjunct treatment of diseases, where increasing glucokinase activity is beneficial.