Trifluoromethanesulfonic Acid Efficiently Catalyzed the Intramolecular Glycosidation of 1-C-Alkyl-d -hexopyranoses to Form the Anhydroketopyranoses Having 6,8-Dioxabicyclo[3.2.1]octane Structures
Autor: | Kazuhide Matsumura, Yoshiki Oda, Takashi Yamanoi, Sho Matsuda |
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Rok vydání: | 2005 |
Předmět: | |
Zdroj: | Synlett. 2005:2973-2977 |
ISSN: | 1437-2096 0936-5214 |
DOI: | 10.1055/s-2005-921912 |
Popis: | The intramolecular glycosidation of the 1-C-alkyl-D-hexopyranose derivatives to form the anhydroketopyranoses having 6,8-dioxabicyclo[3.2.1]octane structures was investigated. We synthesized several l-C-alkyl-2,3,4-tri-O-benzyl-D-hexopyranoses and found that only 5 mol% trifluoromethanesulfonic acid efficiently promoted the intramolecular glycosidation to afford the desired anhydroketopyranoses in good yields. |
Databáze: | OpenAIRE |
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