109917-97-7Relevant articles and documents
Synthesis of Glycosyl Trifluoroacetates and Their Reactions with Carboxylic Acids
Kobayashi, Miyuki,Shimadate, Toshisada
, p. 4069 - 4074 (2007/10/02)
2,3,4,6-Tetra-O-acetyl-1-O-trifluoroacetyl-α-D-glucopyranose was prepared in high yield by treating 1,2,3,4,6-penta-O-acetyl-α- or -β-D-glucopyranose with a mixture of trifluoroacetic acid and its anhydride in the presence of trifluoromethanesulfonic acid or antimony (V) fluoridegraphite catalyst.The reaction of the trifluoroacetate with some carboxylic acids afforded the corresponding 1-O-acyl-2,3,4,6-tetra-O-acetyl-α-D-glucopyranoses.By a similar procedure, anomeric 1-O-trifluoroacetyl-2,3,5-tri-O-benzoyl- and -2,3,5-tri-O-acetyl-D-ribofuranose were obtained from 1-O-acetyl-2,3,5-tri-O-benzoyl- and 1,2,3,5-tetra-O-acetyl-β-D-ribofuranose respectively, and these trifluoroacetates were allowed to react with some carboxylic acids to yield the corresponding 1-O-acyl-β-D-ribofuranose benzoates and acetates.These products were also prepared by direct fusion of 1-O-acetyl-β-D-ribofuranose benzoate and acetate with carboxylic acids.Keywords-glycosyl trifluoroacetate; glycosyl carboxylate; fusion reaction; tetra-O-acetyl-α-D-glucopyranosyl trifluoroacetate; tri-O-benzoyl-α,β-D-ribofuranosyl trifluoroacetate; tri-O-acetyl-α,β-D-ribofuranosyl trifluoroacetate
