Partial tosylation of methyl α- and β-l-arabinopyranoside
✍ Scribed by Yôtaro Kondo
- Book ID
- 107725645
- Publisher
- Elsevier Science
- Year
- 1987
- Tongue
- English
- Weight
- 488 KB
- Volume
- 162
- Category
- Article
- ISSN
- 0008-6215
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In previous publications, on selective sulfonylation of 1 ,5-anhydro-n-glucitoll and 1,5-anhydroxylitol' with p-toluenesulfonyl chloride, the influences of steric and electronic factors on the relative reactivity of the hydroxyl groups were reported. In connection with these studies, the partial tos
Previously one of us reported 121 that methyl 3,4-0-isopropylidene-2-Omethanesulfonyl-5.thio-~-D-~~pyranoside (1) readily unde~ent ring ~ntra~tion in methanol to give 2,5-dideo~-2,5-epithio-o-arabinose dimethyl acetal (2). It was of interest to examine this reaction with the corresponding D-arabinos