Template-directed intramolecular C-glycosidation. Formation of tetrahydrofurans and application to the synthesis of a higher-order sugar
作者:Donald Craig、Mark W. Pennington、Peter Warner
DOI:10.1016/s0040-4020(99)00834-0
日期:1999.11
Cation-mediated cyclisation reactions of silyl enol ether-containing :thioglycosides give bicyclic ketotetrahydrofurans. Cyclisation of an analogous 3-phenyl-2-propenyl ether-containing substrate gives an intermediate in the total synthesis of the higher-order sugar 2,3-didebxy-D-manno-2-octulopyranosonic acid. (C) 1999 Elsevier Science Ltd. All rights reserved.