Traceless solid-phase synthesis of hydroxylated cyclopentenones
作者:Christos I. Stathakis、John K. Gallos
DOI:10.1016/j.tetlet.2008.09.080
日期:2008.11
Intramolecular nitrone-alkene cycloadditions on solid phase can be performed using polymer-bound hydroxylamine. Condensation of this reagent with sugar derived 4-pentenals followed by N-O cleavage, quaternization of the amine thus produced, and finally oxidative elimination of the amino group detaches the chiral hydroxylated cyclopentenones from the polymer. The natural antibiotic pentenomycin I was prepared in this way. (C) 2008 Elsevier Ltd. All rights reserved.