A Ring-Closing Metathesis Strategy to Phosphonosugars
作者:Diana S. Stoianova、Paul R. Hanson
DOI:10.1021/ol016491p
日期:2001.10.1
[reaction: see text]. Syntheses of cyclic phosphonate (phostone) analogues of carbohydrates containing a phosphorus atom at the anomeric position are described. The ring-closing metathesis reaction of mixed allylic phenyl esters of allylphosphonic acid 2 and 22 generates the six-membered allylic phosphonates 3 and 23 in excellent yields. Introduction of the polyhydroxy functionality in these cyclic