1954
DOI: 10.1002/cber.19540871119
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Die Trennung der Alkaloide der Kurchirinde (Holarrhena antidysenterica) mit Hilfe chromatographischer Verfahren

Abstract: Tschesche, Petersen 1719 diert die erhaltene Frakton 15 Min. in nllo Na,C03 bei 40° mit Kaliumpermenganat. Anschliebnd wird daa iiberschiiw. Kaliumpermanganat durch Methanol mrst6rt. Es zeigt sich danach, daD das Absorptionsmaximum im W unveriindert geblieben iat. Oxydiert man jedoch bei Siedetemperatur, 80 zersetzt sich die im W absorbiemnde Komponente vollstcindig.P e r j o d a t s p e l t ung der 7 -0 x yp t er o y 1 -g l u t 8 min s ii u r e : 50 mg 7 -0 x yp t e r o y 1glutaminsiiure werden in 100ccm Wsae… Show more

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Cited by 16 publications
(3 citation statements)
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“…Phosphomolybdic acid is converted to molybdenum blue by many compounds, including steroids (280,228,393,222,159,254). Molybdic acid gives a rose color with estrogens (46) and various colors with the various Kurchee alkaloids (423). Phosphotungstic or phosphomolybdic acid gives a purple color with cholesterol (118).…”
Section: A Detection Methodsmentioning
confidence: 99%
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“…Phosphomolybdic acid is converted to molybdenum blue by many compounds, including steroids (280,228,393,222,159,254). Molybdic acid gives a rose color with estrogens (46) and various colors with the various Kurchee alkaloids (423). Phosphotungstic or phosphomolybdic acid gives a purple color with cholesterol (118).…”
Section: A Detection Methodsmentioning
confidence: 99%
“…The reagent appears to be specific but lacks sensitivity. Steroidal alkaloids and Girard derivatives of ketosteroids (455) may be revealed by various alkaloid reagents (280): potassium iodobismuthate (the Kraut-Dragendorff reagent) (455,280), potassium iodoplatinate (455,280), potassium iodomercuriate (the Mayer reagent) (423), and indicators (8) have been used. Procházka (316) recommended fluorescein as a specific reagent for keto acids.…”
Section: A Detection Methodsmentioning
confidence: 99%
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