We developed palladium-catalyzed oxidative coupling of olefins with N-acyl 2-aminobiaryls through a sequence of ortho C–H bond activation/alkene insertion/reductive elimination. Furthermore, we controlled the selectivity of mono- and bis-alkenylation products with the solvent effect. The developed protocol was promising for a broad substrate scope ranging from activated olefins with a wide variety
Synthesis of Dibenzazepinones by Palladium-Catalyzed Intramolecular Arylation of <i>o</i>-(2′-Bromophenyl)anilide Enolates
作者:Xiaohong Pan、Craig S. Wilcox
DOI:10.1021/jo101137r
日期:2010.10.1
A new approach for the convenient synthesis of dibenzazepinones is reported. The key step is the formation of the seven-membered ring through palladium-catalyzed intramolecular arylation of an anilide enolate. The reactions were completed in 10 min at 100 °C with moderate to excellent yields. Aminodibenzazepinone 1, the core structure in the γ-secretase inhibitor LY411575, can be prepared in five steps