Methyl glycopyranosides with diallylamino and mesylate groups in relationship undergo an intramolecular reaction in which the amino group assists the replacement of the mesylate group by a nucleophile. Such a reaction may result in a 1,2-shift of the nitrogen atom depending on which carbon atom of the intermediate aziridinium ion is attacked by the nucleophile. A further N,N-dideallylation using palladium
Synthese D′ α,β aminofluorodesoxypyranosides de methyle
作者:D Picq、D Anker、C Rousset、A Laurent
DOI:10.1016/s0040-4039(00)94156-x
日期:1983.1
Methyl α,β aminofluorodeoxypyranosids are synthesized in three steps from N,N-diallylaminosugars : O-methanesulfonylation followed with treatment by Et3N, 3HF leads to a fluorinated compound ; N,N-dideallylation gives the expected product.