Synthesis of Enantiopure Dihydropyranones: Aldol-Based Ring Expansion of Dihydrofurans
作者:Timothy J. Donohoe、Ali Raoof、Graeme C. Freestone、Ian D. Linney、Andrew Cowley、Madeleine Helliwell
DOI:10.1021/ol0263595
日期:2002.9.1
this process to an oxidative cleavage/aldol ring closure sequence we were able to produce highly functionalized and enantiopure dihydropyranones in high yield. This sequence has ample flexibility built into it, either by the use of different electrophiles during reductive alkylation or by subsequent derivatization of the dihydropyranone after ringexpansion.