Journal ArticleDOI
A new approach to Amadori ketoses via MoVI-catalyzed stereospecific isomerization of 2-C-branched sugars bearing azido function in a microwave field
TLDR
In this paper, a branched-chain aldose bearing an azido group at the C-2 position provides access to the corresponding 1-deoxy-1-azido- and 1 -deoxy -1-amino ketoses in a single step via stereospecific isomerization.Abstract:
A branched-chain aldose bearing an azido group at the C-2 position provides access to the corresponding 1-deoxy-1-azido- and 1-deoxy-1-amino ketoses in a single step via stereospecific isomerization. The isomerization exploited the catalytic effect of molybdate ions and microwave irradiation. The structures of the products were analyzed by NMR spectroscopy, IR, HRMS spectrometry and quantum-chemical DFT calculations. DFT-computed proton-proton coupling constants of the prepared Amadori ketose 1-deoxy-1-amino- d - gluco -heptulose were found to be comparable with the experimentally obtained coupling constants and were in agreement with the 4 C 1 pyranose form in aqueous solution at room temperature.read more
Citations
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Journal ArticleDOI
Analysis of carbohydrates and glycoconjugates by matrix-assisted laser desorption/ionization mass spectrometry: an update for the period 2005-2006.
TL;DR: A comprehensive review of the application of MALDI to the analysis of carbohydrates and glycoconjugates can be found in this article, where the authors provide a comprehensive overview of the literature.
Journal ArticleDOI
Analysis of carbohydrates and glycoconjugates by matrix-assisted laser desorption/ionization mass spectrometry: an update for 2009-2010.
TL;DR: This review is the sixth update of the original article published in 1999 on the application of MALDI mass spectrometry to the analysis of carbohydrates and glycoconjugates and brings coverage of the literature to the end of 2010.
Journal ArticleDOI
Synthesis of Multibranched Australine Derivatives from Reducing Castanospermine Analogues through the Amadori Rearrangement of gem-Diamine Intermediates: Selective Inhibitors of β-Glucosidase
TL;DR: A practical one-pot synthesis of bi- and triantennated australine analogues from a pivotal sp(2)-iminosugar-type reducing castanospermine precursor is reported, and the final compounds behave as selective competitive inhibitors of β-glucosidase.
Journal ArticleDOI
New series of quinazolinone derived Schiff’s bases: synthesis, spectroscopic properties and evaluation of their antioxidant and cytotoxic activity
TL;DR: A series of 2,3-di-substituted-2,3dihydro-quinazolin-4(1H)-one derived Schiff's bases (1,7) have been designed, synthesized and characterized on the basis of their physical and spectral data.
Journal ArticleDOI
Rapid, one pot preparation of d-mannose and d-mannitol from starch: the effect of microwave irradiation and MoVI catalyst
TL;DR: In this paper, the effect of microwave irradiation upon starch hydrolysis and simultaneous epimerization of the d -glucose to d -mannose obtained was investigated, and an acidic aqueous solution of starch was treated with a catalytic amount of hexavalent molybdenum salt in microwave field and the composition of the reaction mixture was analyzed.
References
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Journal ArticleDOI
Biological roles of oligosaccharides: all of the theories are correct
TL;DR: The only common features of the varied functions of oligosaccharides are that they either mediate ‘specific recognition’ events or that they provide ‘modulation’ of biological processes.
BookDOI
Microwaves in organic synthesis
TL;DR: In this article, the authors present an overview of the development and development of microwave-assisted organic synthesis and its application in the field of organic chemistry. But they do not discuss the specific properties of microwave reactions and their application in organic synthesis.
Book
Microwaves in Organic and Medicinal Chemistry
TL;DR: In this article, the authors present an overview of the history and development of the Microwave-assisted organic synthesis (MAOS) process and its application in the field of chemical synthesis.
Book
Monosaccharides: Their Chemistry and Their Roles in Natural Products
P. M. Collins,Robin Ferrier +1 more
TL;DR: In this paper, the Chemical Synthesis of Oligosaccharides and Enantiomerically Pure Non-Carbohydrate Compounds by Use of Monosacscharides.
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