61553-58-0Relevant academic research and scientific papers
Noncatalytic selective 6-O-acetylation of methyl 2,3-di-O-benzoyl-α-d-glucopyranoside with acetic acid and acetic anhydride
Gening, M. L.,Nifantiev, N. E.,Tsvetkov, Y. E.
, p. 2228 - 2230 (2020)
Noncatalytic acetylation of methyl 2,3-di-O-benzoyl-α-d-glucopyranoside with acetic acid or acetic anhydride proceeds regioselectively at the primary hydroxyl group and affords methyl 6-O-acetyl-2,3-di-O-benzoyl-α-d-glucopyranoside in good yield. The possibility of 6-O-acetylation should be taken into account when removing a 4,6-O-benzylidene protecting group with aqueous acetic acid at elevated temperature.
Mild and efficient method for the cleavage of benzylidene acetals using HClO4-SiO2 and direct conversion of acetals to acetates
Agnihotri, Geetanjali,Misra, Anup Kumar
, p. 3653 - 3658 (2007/10/03)
HClO4-SiO2 has been used successfully for the deprotection of benzylidene acetals and the direct conversion of benzylidene acetals to the corresponding di-O-acetates. The reactions are very fast and yields are excellent.
Unexpected Formation of 3,6-Anhydrofuranoses by Acid Treatment of Methyl 2,3-Di-O-acyl-D-glycopyranosides
Ziegler, Thomas,Vollmer, Martin,Oberhoffner, Sven,Eckhardt, Elisabeth
, p. 255 - 260 (2007/10/02)
Treatment of methyl 2,3-di-O-acyl-D-glycopyranosides 1 of glucose and mannose with catalytic amounts of trifluoromethanesulfonic acid afforded the corresponding bis(5-O-acyl-3,6-anhydro-D-glycofuranose) 1,2':2,1'-dianhydrides 6 in 12-58percent yield the s
Syntheses of 6-Deoxyhex-5-enopyranosides from 6-Bromo-6-deoxy- or 6-O-p-Tolylsulfonylhexopyranosides by the Use of DBU in DMSO
Sato, Ken-ichi,Kubo, Noriyuki,Takada, Ritsuko,Sakuma, Shogo
, p. 1156 - 1165 (2007/10/02)
Various kinds of nonbranched and methyl-branched 6-deoxyhex-5-enopyranoside derivatives were prepared from 6-bromo-6-deoxy or 6-O-p-tolylsulfonylhexopyranoside in a one-pot procedure by a successive treatment with iodide anion and 1,8-diazabicyclou
