中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
---|---|---|---|---|
—— | phenyl 1-seleno-β-D-glucopyranoside | 4981-97-9 | C12H16O5Se | 319.216 |
—— | 2,3,4,6-tetra-O-benzoylglucosyl bromide | 14218-11-2 | C34H27BrO9 | 659.487 |
中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
---|---|---|---|---|
—— | phenyl 2,3,4,6-tetra-O-benzyl-1-seleno-β-D-glucopyranoside | 139903-49-4 | C40H40O5Se | 679.715 |
—— | phenyl 1-seleno-β-D-glucopyranoside | 4981-97-9 | C12H16O5Se | 319.216 |
—— | 2,3,4,6-tetra-O-benzoylglucosyl bromide | 14218-11-2 | C34H27BrO9 | 659.487 |
—— | 2,3,4,6-tetra-O-benzoyl-β-D-glucopyranosyl bromide | —— | C34H27BrO9 | 659.487 |
—— | 1,2:3:4-di-O-isopropylidene-6-O-(tetra-O-benzoyl-β-D-glucopyranosyl)-α-D-galactose | 70751-54-1 | C46H46O15 | 838.862 |
Phenyl tetra-O-benzoyl-1-telluro-β-D-glucopyranoside, when treated with 1,2:3,4-di-O-isopropylidene-α-D-galactose in the presence of N-iodosuccinimide and trifluoromethanesulfonic acid, immediately forms the expected β-disaccharide derivative. A subsequent experiment involving both a telluroglycoside and a selenoglycoside as donors with the one alcohol acceptor showed complete preference for the telluroglycoside. This result has led to an extension of the investigation to establish a ‘reactivity scale’ for various telluro, seleno and thio sugars.
Several new seleno- and telluro-β-D-glucopyranosides have been prepared by treatment of protected α-D- glucopyranosyl bromides with the appropriate dialkyl or diaryl dichalcogenide and sodium borohydride in ethanol.