Results 171 to 180 of about 1,660 (216)

Colorimetric Determination of Thebaine in Papauer Bracteatum

Journal of Pharmaceutical Sciences, 1981
A rapid colorimetric test for the determination of thebaine in dried, extracted Papaver bracteatum is described. The method is based on the development of an orange color formed by the nitroso color reaction for phenols. The absorption peak is near 450 nm. The linear range response is from 0 to 1.0 mg of thebaine.
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Reaction of thebaine with dinitrogen tetroxide

Journal of Heterocyclic Chemistry, 1979
AbstractTreatment of thebaine with dinitrogen tetroxide gave a mixture of 14β‐nitrocodeinone (23%) and 8‐nitrothebaine (7%).
Sydney Archer, Peter Osei‐Gyimah
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Acyl‐normethine aus Thebain

Chemische Berichte, 1967
AbstractBei der Öffnung des Piperidinringes im Thebain mit Acetyl‐ und Benzoylchlorid sowie Chlorameisensäure‐äthyl‐und ‐benzylester in feuchtem Äthylacetat entstehen die entsprechen‐den Codeinon‐acyl‐normethine (1a–1d), die je nach Katalyse interessante Umlagerungs‐und Spaltungsreaktionen eingehen.
Christa Bertgen, Wilhelm Fleischhacker, Franz Vieböck   +2 more
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Mikrobielle Umwandlung von Thebain

Experientia, 1969
Thebaine was transformed into 2 products by fermentation with a strain ofTrametes cinnabarina. The 2 compounds were isolated and identified as 14-Β-hydroxycodeinone and 14-Β-hydroxycodeinone-N-oxid.
D. Gröger, H. P. Schmauder
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Studies on thebaine, III. Oxidative colorimetric analysis of thebaine

Archiv der Pharmazie, 1985
O F, Ellingsen, K E, Malterud, J K, Wold
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Biosynthetic conversion of thebaine to codeine

Journal of the American Chemical Society, 1972
H I, Parker, G, Blaschke, H, Rapoport
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Isoneopine from thebaine

The Journal of Organic Chemistry, 1983
Ahmad Seyed-Mozaffari, Sydney Archer
openaire   +1 more source

What do we know about health risks related to thebaine in food?

Food Chemistry, 2020
Andreas Eisenreich, Benjamin Sachse, Oliver Lindtner   +2 more
exaly  

In vitro evaluation of chromosomal damage and DNA strand breaks after treatment with the poppy seed alkaloid thebaine

Mutation Research - Genetic Toxicology and Environmental Mutagenesis, 2021
Ezgi Eyluel Bankoğlu, Helga Stopper, Henning Hintzsche   +2 more
exaly  

Morphine-thebaine group of alkaloids. IX. Reaction of thebaine with magnesium iodide

Journal of the American Chemical Society, 1967
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