Selenium dioxide promoted dinitrogen extrusion/direct selenation of arylhydrazines and anilines
作者:Mohammad Yaqoob Bhat、Atul Kumar、Qazi Naveed Ahmed
DOI:10.1016/j.tet.2020.131105
日期:2020.4
A novel, efficient, economical strategy for the coupling and direct selenation of arylhydrazines to selenides using SeO2 has been developed. Our method employs SeO2 as the selenium source with hydrazines as coupling reactants to generate selenides via dinitrogen extrusion. This reagent also helped to generate ArSesubstitued aniline derivatives via C– H functionalization reaction in good yields. The
An efficient and conceptually new protocol for C–Secrosscoupling of potassium selenocyanate with arylhalides via copper-catalyzed cascade reaction has been developed in water. Utilizing this protocol, a variety of aryl and heteroaryl halides were reacted with potassium selenocyanate to afford the corresponding diaryl selenides in moderate to good yields.
Ullmann-type C–Se Cross-Coupling in the Hydantoin Family: Synthesis, Mechanistic Studies, and Tests of Biological Activity
作者:Oleksandr Vyhivskyi、Dimitri N. Laikov、Alexander V. Finko、Dmitry A. Skvortsov、Irina V. Zhirkina、Victor A. Tafeenko、Nikolay V. Zyk、Alexander G. Majouga、Elena K. Beloglazkina
DOI:10.1021/acs.joc.9b03045
日期:2020.3.6
Se-arylated imidazolines in moderate to high yields. Computational mechanistic studies show the oxidative addition/intramolecular reductive elimination likely to be the lowest-energy pathway. Cytotoxic activity of all 43 reaction products has been tested in vitro against MCF7 and A549 cancer cell lines with VA13 and MCF10a control cells.
green and efficient approach for the synthesis of selenium-substituted iminoisobenzofuran using 2-vinylbenzamides and diselenides in a continuous electrochemicalmicroreactor has been developed. This strategy enabled the preparation of a series of iminoisobenzofuran derivatives in moderate to good yields under metal-free and oxidant-free conditions. The application of the electrochemicalflow system successfully