First Total Synthesis of Murrastifoline B and an Improved Route to Murrastifoline F
摘要:
We report the first total synthesis of murrastifoline B and an improved route to murrastifoline F using a twofold palladium-catalyzed Buchwald-Hartwig amination as key step. The monomeric carbazole and the biaryl precursor are also prepared via palladium-catalyzed coupling reactions.
Oxidative aryl coupling reactions: a biomimetic approach to configurationally unstable or axially chiral biaryl natural products and related bioactive compounds
作者:Gerhard Bringmann、Stefan Tasler
DOI:10.1016/s0040-4020(00)00940-6
日期:2001.1
products and related compounds in the fields of biphenyls, biscarbazoles and bisnaphthylisoquinolines. For sterically more hindered biaryls, which consequently show the phenomenon of axialchirality, the products were prepared in an atropisomerically pure form. Their absoluteaxialconfigurations were assigned mainly by experimental and computational CD investigations.