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Long-live glycosyl-chromium(III) complex intermediates in aqueous medium. Preparation of pyranoid glycals

✍ Scribed by Gyöngyvér Kovács; Julianna Gyarmati; László Somsák; Károly Micskei


Book ID
103405510
Publisher
Elsevier Science
Year
1996
Tongue
French
Weight
261 KB
Volume
37
Category
Article
ISSN
0040-4039

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Reactions of 2,3,4,6-tetra-O-acetyl-ct-D-glucopyranosyl bromide (3) with chromium(II)L complexes (L = EDTA, NTA` IDA, GLY, MAL) in neutral (5 < pH < 7) aqueous DMF gave 3,4,6-tri-O-acetyl-l,5anhydro-2-deoxy-D-arabino-hex-l-elfitol (13) in 70-90% yields and >95% purity. Complexes of Cr(lI) with L = E