The reaction rate of a catalyzed reaction is faster than the reaction rate of the uncatalyzed reaction at the same temperature.28244-94-2, Name is 4-Methylphenyl 2,3,4,6-tetra-O-acetyl-1-thio-¦Â-D-glucopyranoside, molecular formula is C21H26O9S. In a Article£¬once mentioned of 28244-94-2, COA of Formula: C21H26O9S
Lanthanum trifluoromethane-sulfonate-catalyzed facile synthesis of per-O-acetylated sugars and their one-pot conversion to S-aryl and O-alkyl/aryl glycosides
Lanthanum trifluoromethanesulfonate-catalyzed solvent-free per-O-acetylation with stoichiometric acetic anhydride proceeds in high yield (95%-99%) to afford exclusively pyranose products as anomeric mixtures. Subsequent anomeric substitution employing borontrifluoride etherate and thiols or alcohols furnished the corresponding 1,2-trans-linked thioglycosides and O-glycosides, respectively, in good to excellent overall yield (75%-85%). Alternatively, reaction of free sugars in neat alcohol employing the same catalyst at elevated temperature gives the corresponding 1,2-cis-linked O-glycosides (along with 1,2-trans-linked glycosides as minor product) in good yield (73%-80%). Anomeric mixtures of compounds thus produced were characterized as their per-O-acetylated derivatives.
The reactant in an enzyme-catalyzed reaction is called a substrate. Enzyme inhibitors cause a decrease in the reaction rate of an enzyme-catalyzed reaction.I hope my blog about 28244-94-2 is helpful to your research., COA of Formula: C21H26O9S
Reference£º
Tetrahydropyran – Wikipedia,
Tetrahydropyran – an overview | ScienceDirect Topics