Palladium(II)-Catalyzed Synthesis of the Formylcarbazole Alkaloids Murrayaline A-C, 7-Methoxymukonal, and 7-Methoxy-<i>O</i>-methylmukonal
作者:Ronny Hesse、Micha P. Krahl、Anne Jäger、Olga Kataeva、Arndt W. Schmidt、Hans-Joachim Knölker
DOI:10.1002/ejoc.201402201
日期:2014.7
We describe the synthesis of the naturally occurring 2,7-dioxygenated formylcarbazolealkaloids7-methoxymukonal, 7-methoxy-O-methylmukonal, and the murrayalinesA–C. The carbazole framework was constructed by a Buchwald–Hartwig amination and a subsequent palladium(II)-catalyzed oxidative cyclization.