- Palladium(II)-catalyzed synthesis of the formylcarbazole alkaloids murrayaline A-C, 7-methoxymukonal, and 7-methoxy-o-methylmukonal
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We describe the synthesis of the naturally occurring 2,7-dioxygenated formylcarbazole alkaloids 7-methoxymukonal, 7-methoxy-O-methylmukonal, and the murrayalines A-C. The carbazole framework was constructed by a Buchwald-Hartwig amination and a subsequent palladium(II)-catalyzed oxidative cyclization. We describe the synthesis of the naturally occurring 2,7-dioxygenated formylcarbazole alkaloids 7-methoxymukonal, 7-methoxy-O-methylmukonal, and the murrayalines A-C. The carbazole framework was constructed by a Buchwald-Hartwig amination and a subsequent palladium(II)-catalyzed oxidative cyclization. Copyright
- Hesse, Ronny,Krahl, Micha P.,Jaeger, Anne,Kataeva, Olga,Schmidt, Arndt W.,Knoelker, Hans-Joachim
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p. 4014 - 4028
(2014/07/08)
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- STRUCTURES OF MURRAYASTINE, MURRAYALINE, AND PYRAYAFOLINE; THREE NEW CARBAZOLE ALKALOIDS FROM MURRAYA EUCHRESTIFOLIA
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The structures of murrayastine (1), murrayaline (2), and pyrayafoline (3), new carbazole alkaloids from Murraya euchrestifolia Hayata (Rutaceae) collected in Taiwan, have been determined by spectral and synthesis experiments.KEYWORDS - murrayastine; murrayaline; pyrayafoline; Murraya euchrestifolia; Rutaceae; carbazole alkaloid; palladium acetate
- Furukawa, Hiroshi,Ito, Chihiro,Yogo, Motoi,Wu, Tian-Shung
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p. 2672 - 2675
(2007/10/02)
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