An Unexpected Rearrangement during Mitsunobu Epimerization Reaction of Sugar Derivatives
作者:Rachel Persky、Amnon Albeck
DOI:10.1021/jo0000675
日期:2000.6.1
distribution of the Mitsunobureaction was substrate-dependent, with the corresponding mannose derivative (the 3R epimer) giving less of the initial intramolecular reaction products and the corresponding galactose derivative (the 5S epimer) yielding almost exclusively the expected epimerization product. Varying the Mitsunobureaction conditions (addition of base and using nonpolar solvent) led to the