Reactivity of bromoselenophenes in palladium-catalyzed direct arylations
作者:Aymen Skhiri、Ridha Ben Salem、Jean-François Soulé、Henri Doucet
DOI:10.3762/bjoc.13.278
日期:——
Pd-catalyzed direct heteroarylation was investigated. From 2-bromoselenophene, only the most reactive heteroarenes could be employed to prepare 2-heteroarylated selenophenes; whereas, 2,5-dibromoselenophene generally gave 2,5-di(heteroarylated) selenophenes in high yields using both thiazole and thiophene derivatives. Moreover, sequential catalytic C2 heteroarylation, bromination, catalytic C5 arylation reactions
[EN] 2,5-DIARYL SELENOPHENE COMPOUNDS, AZA 2,5-DIARYL THIOPHENE COMPOUNDS, AND THEIR PRODRUGS AS ANTIPROTOZOAL AGENTS<br/>[FR] COMPOSÉS DE 2,5-DIARYLSÉLÉNOPHÈNE, COMPOSÉS D'AZA-2,5-DIARYLTHIOPHÈNE ET LEURS PROMÉDICAMENTS UTILISÉS EN TANT QU'AGENTS ANTIPROTOZOAIRES
申请人:UNIV NORTH CAROLINA
公开号:WO2009051796A3
公开(公告)日:2009-06-04
An efficient synthesis of 5,5′-diaryl-2,2′-bichalcophenes
作者:Mohamed A. Ismail、David W. Boykin、Chad E. Stephens
DOI:10.1016/j.tetlet.2005.11.091
日期:2006.1
A convenient and high yielding synthesis of 5,5'-diaryl-2,2-bichalcophenes (furans, thiophenes, and selenophenes) by the hexabutylditin-mediated homocoupling of 5-bromochalcophenes is described. This approach has been applied to the synthesis of the blue-light-emitting compound 5,5'-bis(4-aminophenyl)-2,2'-bifuryl (PFDA). (c) 2005 Elsevier Ltd. All rights reserved.