On July 17, 2020, Fukuhara, Ippei; Matsubara, Ryosuke; Hayashi, Masahiko published an article.SDS of cas: 2873-29-2 The title of the article was Selective Synthesis of Some Aminosugars via Catalytic Aminohydroxylation of Protected 2,3-Unsaturated D-Gluco- and D-Galacto-2-hexenopyranosides. And the article contained the following:
The aminohydroxylation of Me 4,6-di-O-(tert-butyldimethylsilyl)-2,3-unsaturated α-D-glucopyranoside proceeds in the presence of chloramine-T, OsO4 (4 mol %), (DHQ)2PHAL (5 mol %), and triethylbenzylammonium chloride (TEBAC) in both a stereoselective and a regioselective manner to produce protected Me α-D-mannosamide as the sole product. In contrast, the reaction of Me 2,3-unsaturated β-D-galactopyranoside under the same conditions produced a mixture of regioisomers, although the stereochem. was perfectly controlled. The regioisomeric ratio was dependent on the nature of the protecting group and the ligand used. The experimental process involved the reaction of (2R,3S,4R)-2-(Acetoxymethyl)-3,4-dihydro-2H-pyran-3,4-diyl diacetate(cas: 2873-29-2).SDS of cas: 2873-29-2
The Article related to aminohydroxylation catalyst aminosugar glycoside preparation ethylbenzylammonium chloride chloramine, Carbohydrates: Amines and other aspects.SDS of cas: 2873-29-2
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