Methyl 2,6-Anhydro-α-D-altroside and Other New Derivatives of Methyl α-D-Altroside 1
✍ Scribed by Rosenfeld, David A.; Richtmyer, Nelson K.; Hudson, C. S.
- Book ID
- 126848222
- Publisher
- American Chemical Society
- Year
- 1948
- Tongue
- English
- Weight
- 852 KB
- Volume
- 70
- Category
- Article
- ISSN
- 0002-7863
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## Abstract Umsetzung von Methyl‐2,6‐anhydro‐α‐D‐mannopyranosid (**1a**) mit Methanol in Gegenwart von HCl liefert als Hauptprodukt 2,6‐Anhydro‐D‐mannose‐dimethylacetal (**2a**), das über die Isopropylidenverbindung **5a** und das Keton **6** durch dessen stereoselektive Reduktion in das Isomere **
Methyl 3-O-(3,6-anhydro-beta-D-galactopyranosyl)-alpha-D-galactopyranoside (3) and methyl 3,6-anhydro-4-O-beta-D-galactopyranosyl-alpha-D-galactopyranoside (4) have been synthesised stereoselectively using three coupling procedures. Acceptable yields were achieved using acetylated derivatives as don