127783-06-6Relevant academic research and scientific papers
Tagged hypervalent iodine reagents: A new purification concept based on ion exchange through SN2 substitution
Kunst, Eike,Gallier, Florian,Dujardin, Gilles,Yusubov, Mekhman S.,Kirschning, Andreas
, p. 5199 - 5202 (2008/09/17)
(Chemical Equation Presented) The preparation of phenylsulfonate-tagged iodine(III) reagents as well as their use in a novel purification strategy for iodine(III)-promoted reactions is described. The concept is based on ion exchange and is initiated by an azide-promoted SN2-reaction at the alkyl sulfonate followed by trapping of the resulting aryl sulfonate anion with an ion-exchange resin. The concept is successfully proven for Ru-catalyzed oxidations of alcohols, the activation and glycosidatlon of thioglycosides, and the Suarez reaction of pyranoses.
Synthesis of 4-O-methyl-β-rhodomycins using derivatives of 4-amino-4-deoxy- and 3,4-diamino-3,4-dideoxy sugars
Kolar, Cenek,Dehmel, Konrad,Moldenhauer, Hans
, p. 67 - 81 (2007/10/02)
Synthesis of 7-O-(4-amino-2,4,6-trideoxy- and 7-O-(3,4-diamino-2,3,4,6-tetradeoxy-α-L-lyxo-hexopyranosyl)-4-O-methyl-β-rhodomycinones (31 and 33) are described.The glycosyl donors 2,4,6-trideoxy-1,3-di-O-p-nitrobenzoyl-4-trifluoroacetamido-β-L-lyxo-hexopy
