160412-84-0Relevant academic research and scientific papers
Arylboronic acid-mediated glycosylation of 1,2-dihydroxyglucoses
Izumi, Sanae,Kobayashi, Yusuke,Takemoto, Yoshiji
, p. 350 - 362 (2019/07/31)
- We explored direct dehydrative coupling of tetrahydro-2H-pyran-2,3-diol or a 1,2-dihydroxy sugar with various alcohols using a range of arylboronic acids. Among the catalysts, 2-borono-4-trifluoromethylbenzoic acid efficiently promoted acetalization of tetrahydro-2H-pyran-2,3-diol. Ferroceniumboronic acid showed the best catalytic activity for glycosylation of the 1,2-dihydroxy sugar. The major products were 1,2-cJi-a-D-glucopyranosides.
Simple and mild stereoselective O-glycosidation using 1,2-anhydrosugars under neutral conditions
Somasundaram, Devaraj,Balasubramanain, Kalpattu K.,Shanmugasundaram, Bhagavathy
supporting information, p. 764 - 767 (2019/02/16)
The ring opening of α-D-1,2-anhydrohexapyranoses with phenols proceeded smoothly in ethyl acetate (neutral conditions) in the absence of metal ion catalysts or additives to stereoselectively furnish 1,2-cis-α-aryl glycosides as the major product and 1,2-t
Dialkylphosphates as stereodirecting protecting groups in oligosaccharide synthesis
Yamada, Takeshi,Takemura, Kazunobu,Yoshida, Jun-Ichi,Yamago, Shigeru
, p. 7575 - 7578 (2008/02/01)
(Chemical Equation Presented) Double duty: A phosphoric ester at the C2 position in glycosyl donors directs the glycosylation to occur selectively at the anomeric carbon atom with complete 1,2-trans selectivity. Since the phosphoric ester can be removed to give the hydroxy function, this group serves as a stereodirecting protecting group in oligosaccharide synthesis.
N-Iodosuccinimide-mediated intramolecular aglycon delivery
Ennis,Fairbanks,Slinn,Tennant-Eyles,Yeates
, p. 4221 - 4230 (2007/10/03)
Enol ethers may be accessed via Tebbe methylenation of either 2-O acetates or para-methoxybenzoates. N-Iodosuccinimide may then be employed to achieve both tethering and thioglycoside activation allowing the stereoselective synthesis of α-glucosides and β-mannosides, either in a one or two step procedure.
Silica gel-catalyzed β-O-glucosylation of alcohols with 1,2-anhydro-3,4,6-tri-O-pivaloyl-α-D-glucopyranose
Matsushita, Yoh-Ichi,Sugamoto, Kazuhiro,Kita, Yoshio,Matsui, Takanao
, p. 8709 - 8712 (2007/10/03)
1,2-Anhydro-3,4,6-tri-O-pivaloyl-α-D-glucopyranose (1a) was allowed to react with alcohols in the presence of solid acids such as silica gel and zeolite HY, to afford β-O-glucosides stereoselectively. Several natural glucosides were synthesized by the application of the present resection.
