| Abstract
| - A synthesis of a chromogenic glycoside of the Salmonella anatum group E1 core trisaccharide ispresented in which all three glycosidic bonds, a 1,2-cis-equatorial, a 1,2-trans-axial, and a 1,2-trans-equatorial linkage representing three of the four main classes of glycosidic bond, are formedwith thioglycoside donors activated under a single set of conditions by the combination of1-(benzenesulfinyl)piperidine and trifluoromethanesulfonic anhydride. 2,3-O-Carbonyl- and 2,3-O-isopropylidene-α-l-rhamnopyranosyl thioglycosides are found to be highly α-selective rhamnosyldonors under these conditions.
|
