367274-96-2

Upstream product

• 204918-57-0 (2R,3S,3aS,9aR)-5,5,7,7-Tetraisopropyl-2-p-tolylsulfanyl-tetrahydro-1,4,6,8-tetraoxa-5,7-disila-cyclopentacycloocten-3-ol 
• 204918-48-9 1-(p-thiocresyl)-2,3,5-tri-O-acetyl-α-D-arabinofuranoside 
• 204918-49-0 p-methylphenyl 1-thio-α-D-arabinofuranoside 
• 106-45-6 para-thiocresol 
• 13035-61-5 1,2,3,5-tetra-O-acetyl-α-D-arabinofuranose 

Downstream Products

• 367274-93-9 C₃₃H₃₀O₆S 

Relevant academic research and scientific papers

A stereoselective synthesis method for β-D-arabinofuran glycoside bonds

The present invention belongs to the field of natural oligosaccharide chain synthesis technology, specifically relates to a β-D- arabinofuran glycoside bond stereoselective synthesis method, the present invention to 2- O- benzyl-3,5-O- xylene -D- arabfura

On the use of 3,5-O-benzylidene and 3,5-O-(Di-tert-butylsilylene)-2-O- benzylarabinothiofuranosides and their sulfoxides as glycosyl donors for the synthesis of β-arabinofuranosides: Importance of the activation method

A 2-O-benzyl-3,5-O-benzylidene-α-D-thioarabinofuranoside was obtained by reaction of the corresponding diol with α,α-dibromotoluene under basic conditions. On activation with 1-benzenesulfinyl piperidine, or diphenyl sulfoxide, and trifluoromethanesulfonic anhydride in dichloromethane at -55 °C, reaction with glycosyl acceptors affords anomeric mixtures with little or no selectivity. The analogous 2-O-benzyl-3,5-O-(di-tert-butylsilylene)- α-D-thioarabinofuranoside also showed no significant selectivity under the 1-benzenesulfinyl piperidine or diphenyl sulfoxide conditions. With N-iodosuccinimide and silver trifluoromethanesulfonate the silylene acetal showed moderate to high β-selectivity, independent of the configuration of the starting thioglycoside. High β-selectivity was also obtained with a 2-O-benzyl-3,5-O-(di-tert-butylsilylene)-α-arabinofuranosyl sulfoxide donor on activation with trifluoromethanesulfonic anhydride. The high β-selectivities obtained by the N-iodosuccinimide/silver trifluoromethanesulfonate and sulfoxide methods are consistent with a common intermediate, most likely to be the oxacarbenium ion. The poor selectivity observed on activation of the thioglycosides with the 1-benzenesulfinyl piperidine, or diphenyl sulfoxide, and trifluoromethanesulfonic anhydride methods appears to be the result of the formation of a complex mixture of glycosyl donors, as determined by low-temperature NMR work.

Synthesis of arabinofuranosides via low-temperature activation of thioglycosides

The synthesis of oligosaccharides containing arabinofuranose residues is reported. Coupling of thioglycoside donors 4, 6, or 7 and with acceptors 8-17 using N-iodosuccinimide and silver triflate activation provided glycosides with varying degrees of stere