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。
Four- and Sixfold Tandem-Domino Reactions Leading to Dimeric Tetrasubstituted Alkenes Suitable as Molecular Switches
作者:Lutz F. Tietze、Bernd Waldecker、Dhandapani Ganapathy、Christoph Eichhorst、Thomas Lenzer、Kawon Oum、Sven O. Reichmann、Dietmar Stalke
DOI:10.1002/anie.201503538
日期:2015.8.24
A highly efficient palladium‐catalyzed fourfold tandem‐domino reaction consisting of two carbopalladation and two CH‐activation steps was developed for the synthesis of two types of tetrasubstitutedalkenes 3 and 6 with intrinsic helical chirality starting from substrates 1 and 4, respectively. A sixfold tandem‐domino reaction was also developed by including a Sonogashira reaction. 20 compounds with
Microwave assisted rapid synthesis of phenoxazines and benzopyridoxazines
作者:Kavitha Anchan、Nagaswarupa H. Puttappa、Baburajan Poongavanam、Sujit Kumar Sarkar
DOI:10.1080/00397911.2020.1849723
日期:2021.2.16
A facile protocol for the synthesis of phenoxazines and benzopyridoxazines by Smiles rearrangement have been demonstrated in short reaction time under microwave irradiation. The control experiments...
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.