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Upstream product

• 106-44-5 p-cresol 
• 74808-09-6 2,3,4,6-tetra-O-benzyl-α-D-glucopyranosyl trichloroacetimidate 
• 194088-19-2 (2R,3R,4S,5R,6S)-3,4,5-tris(benzyloxy)-2-(benzyloxymethyl)-6-(prop-2-ynyloxy)tetrahydro-2H-pyran 
• 80300-30-7 1-O-acetyl-2,3,4,6-tetra-O-benzyl-D-glucopyranose 
• 17902-32-8 trimethyl(4-methylphenoxy)silane 
• 89825-08-1 2,3,4,6-tetra-O-benzyl-1-O-trimethylsilyl-α,β-D-glucopyranose 

Relevant academic research and scientific papers

Stereoselective O-Glycosylations by Pyrylium Salt Organocatalysis**

Despite many years of invention, the field of carbohydrate chemistry remains rather inaccessible to non-specialists, which limits the scientific impact and reach of the discoveries made in the field. Aiming to increase the availability of stereoselective

An Unexpected FeCl 3/C-Catalyzed β-Stereoselective Glycosylation in the Presence of the C(2)-Benzyl Group

An efficient and completely β-stereoselective glycosylation that did not rely on neighboring group participation is described using 2-20 molpercent FeCl 3 /C as the catalyst and benzylated propargyl glycosides as the donors to reach yields up to 96percent under mild condition. With an octatomic-ring intermediate at the α-face of FeCl 3 /C with alkyne of propargyl glycosides, a panel of aglycones comprising aliphatic, alicyclic, unsaturated alcohols, halogenated alcohols, and phenols with different substitution were examined successfully for the exclusive β-stereoselective glycosylation reaction.

Gold(III) Chloride and Phenylacetylene: A Catalyst System for the Ferrier Rearrangement, and O-Glycosylation of 1-O-Acetyl Sugars as Glycosyl Donors

We have developed a new catalyst system comprising AuCl3 and phenylacetylene that promotes the Ferrier rearrangement of glycals and 2-acetoxymethylglycals with different nucleophiles, and also the O-glycosylation of 1-O-acetyl sugars to obtain a variety of useful glycosides at room temperature through relay catalysis. Good anomeric selectivity was observed for the Ferrier rearrangements, whereas the O-glycosylation of 1-O-acetyl sugars gave mixtures of diastereomers with moderate to excellent selectivity.

EINFACHE UND STEREOSELEKTIVE SYNTHESE VON α- UND β-PHENYLGLYKOSIDEN

Reaction of phenyl-trimethylsilylethers (3) with 1-O-trimethylsilyl-2,3,4,6-tetra-O-acetyl-D-glucoside (1) (anomeric mixture) yields almost exclusively the aryl-β-glucosides (4) in the presence of catalytic amounts of TMS-triflate at 20 deg C, whereas (3)