Synthesis of the Natural Products 3-Hydroxymollugin and 3-Methoxymollugin
作者:Mudiganti Naga Venkata Sastry、Sven Claessens、Pascal Habonimana、Norbert De Kimpe
DOI:10.1021/jo100024b
日期:2010.4.2
available 3-bromomollugin 6. Surprisingly, it was found that the reaction of 3-bromomollugin 6 with sodiummethoxide in methanol resulted in the formation of 3-methoxymollugin 3 and the ring-contracted methyl isopropenylfuromollugin 7. A mechanism for this ring contraction is proposed on the basis of a pericyclic retro oxa-6π ring-openingreaction. A second synthesis of 3-hydroxymollugin 2 was based on epoxidation