Topic
Pyranose
About: Pyranose is a research topic. Over the lifetime, 1619 publications have been published within this topic receiving 35348 citations. The topic is also known as: pyranoses & hexopyranose.
Papers published on a yearly basis
Papers
More filters
TL;DR: The crystal structure of the title compound was determined by X-ray crystallography and depicts unique network of C-H...pi interactions, very closely resembling the pattern of O-H…O interactions in free sugars.
14 citations
TL;DR: Twenty 1,4-disubstituted-triazole nucleosides were synthesized in good yields using the copper catalyzed ‘Click’ reaction between azido-modified pento- or hexopyranoses and alkyne-bearing pyrimidine or purine nucleobases to create a library of compounds with potential bioactivities.
Abstract: With the aim to create a library of compounds with potential bioactivities by combining special characteristics of two important groups such as nucleobases and carbohydrates, twenty 1,4-dis...
14 citations
TL;DR: In this article, the reaction of azido sugars with triphenylphosphine and carbon dioxide leading to cyclic carbamates has been studied by means of PM3 semi-empirical quantum chemical computations to elucidate the detailed mechanisms of chemical processes involved in this transformation.
Abstract: The reaction of azido sugars with triphenylphosphine and carbon dioxide leading to cyclic carbamates has been studied by means of PM3 semiempirical quantum chemical computations to elucidate the detailed mechanisms of chemical processes involved in this transformation. Our results clearly indicate that the mechanism involving an isocyanate intermediate is preferred for both α- and β-anomers. In addition, we find that, in the case of the α-anomer, steric hindrance prevents the occurrence of direct cyclization and requires the opening of the pyranose ring, in contrast to the case of the β-anomer. This result explains the poor yield and the occurrence of three isomeric cyclic carbamates when the reaction is performed on the α- anomer.
14 citations
TL;DR: The push-pull-activated pyranosidulose 2 reacted with acetylacetone and methyl acetoacetate to afford the anellated pyranoides 3 and 4, respectively as discussed by the authors.
Abstract: The push-pull-activated pyranosidulose 2 reacted with acetylacetone and methyl acetoacetate to afford the anellated pyranosides 3 and 4, respectively. Treatment of the ulose 2 with acetoacetamide and malononitrile, respectively, furnished the fused pyridones 5 and 6. Benzo-anellated pyranosides 7 were obtained by reaction of pyranosidulose 2 with dialkyl 3-oxoglutarates.
14 citations
TL;DR: The simulation results showed that the cellulose inclusion complexes exhibited anisotropic properties, and the spatial structure of inclusion complexes, the hydrogen-bonding interaction between cellulose and solvent molecules, the diffusive property of solvent molecules and the distribution of water-water angles in celluloseclusion complexes were discussed in details.
14 citations