A biomimetic type expedient approach to the tricyclic core of xyloketals. Application to a short, stereocontrolled synthesis of alboatrin and a remarkable epi to natural isomerisation
作者:Debayan Sarkar、Subrata Ghosh、Ramanathapuram V. Venkateswaran
DOI:10.1016/j.tetlet.2009.01.086
日期:2009.4
An expedientsynthesis of the linear tetrahydrofurano benzopyran ring system of xyloketals is described involving an ortho ester Claisen rearrangement and an intramolecular cationic cyclisation. This strategy was applied for a short, stereocontrolled and high yield synthesis of the phytotoxic metabolite alboatrin.