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Preparation of acetylated pyranoid glycals from glycosyl halides by chromium(II) complexes under aqueous biphasic conditions

✍ Scribed by Gyöngyvér Kovács; Károly Micskei; László Somsák


Book ID
108309304
Publisher
Elsevier Science
Year
2001
Tongue
English
Weight
82 KB
Volume
336
Category
Article
ISSN
0008-6215

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Preparation of acylated pyranoid glycals
✍ Gyöngyvér Kovács; Krisztina Tóth; Zoltán Dinya; László Somsák; Károly Micskei 📂 Article 📅 1999 🏛 Elsevier Science 🌐 French ⚖ 717 KB

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