Synthetic Route of 74808-09-6. Chemistry is an experimental science, and the best way to enjoy it and learn about it is performing experiments.Introducing a new discovery about 74808-09-6, Name is (2R,3R,4S,5R,6R)-3,4,5-Tris(benzyloxy)-6-((benzyloxy)methyl)tetrahydro-2H-pyran-2-yl 2,2,2-trichloroacetimidate
Glycosyl 6-nitro-2-benzothiazoate. A highly efficient donor for beta-stereoselective glycosylation
Highly beta-stereoselective glycosylations of glycosyl acceptors having a primary hydroxyl group by using a novel glycosyl donor, alpha-glycosyl 6-nitro-2-benzothiazoate (3), proceeded smoothly in the presence of a catalytic amount of trifluoromethanesulfonic acid (TfOH) in CH2Cl2 at -78C to afford the corresponding glycosides in high yields. The donor 3 gave beta-saccharides more dominantly compared with those using other alpha-glycosyl donors such as thioform- and trichloroacet-imidates or fluoride under the same conditions.
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Reference£º
Tetrahydropyran – Wikipedia,
Tetrahydropyran – an overview | ScienceDirect Topics