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Dive into the research topics where Petra Ossowski is active.

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Featured researches published by Petra Ossowski.


Journal of Carbohydrate Chemistry | 1984

Studies of Hexuronic Acid Ester Glycals and the Synthesis of 2-Deoxy-β-glycoside Precursors

Joachim Thiem; Petra Ossowski

Abstract The hexuronic acid methyl ester glycals with L-ribo (7), D-lyxo (9), and D-xylo configuration (11a) were synthesized and their conformations and that of the D-arabino derivative 2a were studied. Using the N-iodosuccinimide alycosylation procedure these glycals were transformed into cyclohexyl 2-deoxy-2-iodoglycosides 13 - 28 and their α/β-anomer ratios determined by 1H NMR spectrocopy. The mechanism of the N-iodosuccinimide glycosylation and the correlation between glycal conformation and glycoside configuration are discussed.


Journal of Carbohydrate Chemistry | 1986

Silver Zeolite as Promoter in Glycoside Synthesis. The Synthesis of 2-Deoxy-β-D-Glycopyranosides

Per J. Garegg; Petra Ossowski; Sabine Köpper; Joachim Thiem

Abstract The use of silver zeolite as a promoter for the preparation of β-linked 2-deoxygtycosides and disaccharides of biological relevance has been explored. Starting from benzoylated glycosyl bromides, the total yield of glycosides varies from 54 to 84% and the α:β ratio from 0.25 to 1.18.


Carbohydrate Research | 1983

Syntheses of trisaccharides related to Salmonella serogroup E O-antigenic polysaccharides

Per J. Garegg; Christina Henrichson; Thomas Norberg; Petra Ossowski

Abstract Syntheses of p -trifluoroacetamidophenyl O -β- d -mannopyranosyl-(1→4)- O -α- l -rhamnopyranosyl-(1→3)-α- d -galactopyranoside ( 3 ) and p -trifluoroacetamidophenyl O -β- d -galactopyranosyl-(1→6)- O -β- d -mannopyranosyl-(1→4)-α- l -rhamnopyranoside ( 11 ) are described. Silver zeolite was used as promoter for constructing the β- d -mannosyl linkages from 6- O -acetyl-2,3,4-tri- O -benzyl-α- d -mannopyranosyl bromide and the appropriate monohydroxy compound.


Acta Chemica Scandinavica | 1983

Silver Zeolite as Promoter in Glycoside Synthesis. The Synthesis of beta-D-Mannopyranosides.

Per J. Garegg; Petra Ossowski; U. Wenger; Grete Wøien; Jan-Eric Berg; Thomas W. Dingle; Richard Vaughan Williams; Ramanathan Mahedevan


Chemische Berichte | 1980

Synthese neuer Mono‐ und Disaccharidglycale zum Aufbau von Oligodesoxyoligosacchariden

Joachim Thiem; Petra Ossowski; Jens Schwentner


Angewandte Chemie | 1983

Syntheses of a Branched Hepta- and an Octassaccharide with Phytoalexin-Elicitor Activity

Petra Ossowski; Åke Pilotti; Per J. Garegg; Bengt Lindberg


Angewandte Chemie | 1979

Neuartige Glycale als Synthone für Saccharidsynthesen

Joachim Thiem; Petra Ossowski; Jens Schwentner


European Journal of Organic Chemistry | 1983

Synthesen von Digitoxosyl-Digitoxosiden und Herzglycosid-Tetrasacchariden

Joachim Thiem; Petra Ossowski


Chemische Berichte | 1981

Synthesen und Reaktionen von Methyl-digilanidobiosid und Digilanidobial

Joachim Thiem; Petra Ossowski


Angewandte Chemie | 2006

Synthese eines verzweigten Hepta- und Octasaccharids mit Phytoalexin-Elicitor-Aktivität

Petra Ossowski; Åke Pilotti; Per J. Garegg; Bengt Lindberg

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Thomas Norberg

Swedish University of Agricultural Sciences

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