Catalytic Asymmetric Synthesis of 8-Oxabicyclooctanes by Intermolecular [5+2] Pyrylium Cycloadditions
作者:Michael R. Witten、Eric N. Jacobsen
DOI:10.1002/anie.201402834
日期:2014.6.2
for this effect is analyzed using experimental and computational evidence. The resultant 8‐oxabicyclo[3.2.1]octane derivatives possess a scaffold common in naturalproducts and medicinally active compounds and are also versatile chiral buildingblocks for further manipulations. Several stereoselective complexity‐generating transformations of the 8‐oxabicyclooctane products are presented.
Preparation and properties of some phytotoxic 2-benzyloxy-8-oxabicyclo[3.2.1]octane derivatives
作者:Peter G. Sammes、Leslie J. Street、Peter Kirby
DOI:10.1039/p19830002729
日期:——
The preparation and biological activity of a novel group of herbicides is described. These 2-benzyloxy-8-oxabicyclo[3.2.1]octanes are readily obtained from the cycloadducts formed between various olefins and 3-oxidopyrylium ylides, prepared from 6-acetoxypyran-3(6H)-ones.