Nitrogen??Containing Tricyclic and Tetracyclic Compounds by Stereoselective Samarium Diiodide Promoted Cyclizations of Quinolyl??Substituted Ketones–A New …

F Aulenta, UK Wefelscheid, I Bruedgam…

Index: Aulenta, Francesca; Wefelscheid, Ulrike K.; Bruedgam, Irene; Reissig, Hans-Ulrich European Journal of Organic Chemistry, 2008 , # 13 p. 2325 - 2335

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Citation Number: 10

Abstract

Abstract In this report, we describe our experiments dealing withsamarium diiodide promoted cyclizations of quinolyl-substituted ketones 6–12 and also the attempted reductive cyclization of carbazole-containing ketone 13. These precursors were prepared by Heck- type coupling reactions of the corresponding hetaryl nonaflates with adequately substituted olefins as a key step. The cyclization of compounds 7–12 led to nitrogen-containing tri-and ...