Domino CN Coupling/Annulation versus CN Coupling/ Hydroamination of 2-Alkynyl-3-bromobenzothiophenes and 2-Alkynyl-3-bromothiophenes. Highly Efficient Synthesis of Benzothieno[3,2-b]quinolines and Thieno[3,2-b]pyrroles
作者:Ghazwan Ali Salman、Munawar Hussain、Viktor Iaroshenko、Alexander Villinger、Peter Langer
DOI:10.1002/adsc.201000709
日期:2011.2.11
palladium-catalyzed reaction of 2-alkynyl-3-bromothiophenes with anilines afforded thienopyrroles by a domino CN coupling/hydroamination process, the reaction of 2-alkynyl-3-bromobenzothiophenes with anilines resulted, under identical conditions, in the formation of benzothienoquinolines by a domino CN coupling/annulation process. The electronic character of the aniline also has an influence on the product distribution