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- W2080811975 abstract "Nach cis-Hydroxylierung von DL-trans-3-Methyl-3-tosylamino-4-hexenal-ethylenacetal (3a, 4a) werden nach Hydrolyse, Glycosidierung und Acetylierung die anomeren Methyl-4-O-acetyl- 2,3,6-tridesoxy–3-C-methyl-3-tosylamino-DL-hexopyranoside mit lyxo- (α-14, β-15) und xylo-Konfiguration (α-16, β-17) getrennt erhalten. Detaillierte spektroskopische Untersuchungen an 14–17 und an (3R)- (21) bzw, (3s)-Methyl-4-0-benzoyl-2,3,6-tridesoxy-3-C-methyl-α-D-erythro-hexopyranosid (22) führen zu Zusammenhängen zwischen 1HNMR-Parametern und den Konfigurationen am Verzweigungsort. Syntheses of Biologically Important Carbohydrates, 27. Total Synthesis and Determination of the Configuration of -Branched 2,3,6-Trideoxy Hexoses After cis-hydroxylation of DL-trans-3-methyl-3-tosylamino-4-hexenal ethylene acetal (3a–4a) followed by hydrolysis, glycosidation and acetylation the anomeric forms of the methyl 4-0-acetyl-2,3,6-trideoxy-3-C-methyl-3-tosylamino-DL-hexopyranosides with lyxo- (α-14, β-15) and xylo-configuration (α-16, β-17) are obtained. Detailed spectroscopical investigations with 14–17 and with (3R)- (21) and (3s)-methyl-4-0-benzoyl-2,3,6-trideoxy-3-C-methyl-α-D-erythro-hexo-pyranoside (22) respectively, show relationships between 1H NMR parameters and the configurations at the branching point." @default.
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- W2080811975 date "1981-08-01" @default.
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- W2080811975 title "Synthesen biologisch wichtiger Kohlenhydrate, 27. Totalsynthese und Konfigurationsbestimmung ‐verzweigter 2,3,6‐Tridesoxyhexosen" @default.
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- W2080811975 doi "https://doi.org/10.1002/cber.19811140802" @default.
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