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Protection of hydroxyl groups as tert-butyldimethylsilyl derivatives

✍ Scribed by Corey, E. J.; Venkateswarlu, A.


Book ID
111674099
Publisher
American Chemical Society
Year
1972
Tongue
English
Weight
273 KB
Volume
94
Category
Article
ISSN
0002-7863

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Migration of secondary tert-butyldimethy
✍ Detlef Icheln; BΓ€rbel Gehrcke; Yvonne Piprek; Petra Mischnick; Wilfried A. KΓΆnig πŸ“‚ Article πŸ“… 1996 πŸ› Elsevier Science 🌐 English βš– 827 KB

When 2,6-di-O-tert-butyldimethylsilylated cyclomalto-oligosaccharides (cyclodextrins) are treated with allyl or methyl iodide and NaH in dry tetrahydrofuran, O-2-->O-3 migration of the secondary 2-O-tert-butyldimethylsilyl groups occurs, leading to 2-O-alk(en)yl-3,6-di-O-tert-butyldimethylsilyl-cycl