Zobrazeno 1 - 10
of 56
pro vyhledávání: '"Karl Dax"'
Autor:
Karl Dax, Martin Albert, David Hammond, Carina Illaszewicz, Thomas Purkarthofer, Martin Tscherner, Hansjörg Weber
Publikováno v:
Monatshefte f?r Chemie / Chemical Monthly. 133:427-448
Autor:
Bernhard J. Paul, Karl Dax, Werner Repetschnigg, Martin Albert, Hansjörg Weber, Joseph Gomes, Walter Steiner, Carina Illaszewicz, Jörg Ortner
Publikováno v:
Carbohydrate Research. 327:395-400
A fast method for the simultaneous detection of different glycosidolytic activities in commercially available enzyme preparations and crude culture filtrates was found in using, as substrate, a mixture of different glycosyl fluorides and 19F NMR spec
Publikováno v:
Journal of Carbohydrate Chemistry. 18:297-316
The reaction of D-glucal and its derivatives with the electrophilic N-F-fluorination reagents F-TEDA tetrafluoroborate and triflate was studied by means of 19F NMR spectroscopy. In all cases mixtures of 2-deoxy-2-fluoro-D-gluco- and -D-mannopyranose
Publikováno v:
Tetrahedron. 54:4839-4848
A new type of reactive N-(2-deoxy-2-fluoro-glycosyl) compound is formed by regioselective syn-addition of the electrophilic N-F reagent Selectfluor™ to glycals. By subsequent treatment with nucleophiles, 2-deoxy-2-fluoro-aldoses and various C-1-sub
Autor:
Karl Dax, Vera Graßberger, Günther Gradnig, Martin H. Fechter, Andreas Berger, Arnold E. Stütz
Publikováno v:
Liebigs Annalen der Chemie. 1993:379-390
Synthesis of (+)-Castanospermine and 1-Epicastanospermine from D-Glucofuranurono-6,3-lactone by Reformatsky Reaction Starting from 5-O-(tert-butyldimethylsilyl)-1,2-O-isopropylidene-α-D-gluco- (2a) or -β-L-idofuranurono-6,3-lactone (2b), 7-deoxyoct
Autor:
Jürgen Kopf, Bärbel Zimmer, Arnold E. Stütz, Andreas Berger, Karl Dax, Martina Morf, Peter Köll
Publikováno v:
Carbohydrate Research. 242:21-28
The molecular structures of the title octitol octa-acetates were determined by X-ray crystallography, using direct methods, and refined to final residual parameters of R = 0.076 and 0.047, respectively. The l - threo - l - altro isomer adopts a bent
Publikováno v:
ChemInform. 22
Publikováno v:
ChemInform. 24
Publikováno v:
ChemInform. 28
Publikováno v:
ChemInform. 29
A new type of reactive N-(2-deoxy-2-fluoro-glycosyl) compound is formed by regioselective syn-addition of the electrophilic N-F reagent Selectfluor™ to glycals. By subsequent treatment with nucleophiles, 2-deoxy-2-fluoro-aldoses and various C-1-sub