Organic compounds -- part of the class 532-570 series – Organic compounds – Cyclopentanohydrophenanthrene ring system containing
Patent
1995-03-16
1997-01-21
Prior, Kimberly J.
Organic compounds -- part of the class 532-570 series
Organic compounds
Cyclopentanohydrophenanthrene ring system containing
C07J 7500, C07J 300
Patent
active
055961100
ABSTRACT:
An improvement in a process for producing 3.beta.,14.beta.-dihydroxyethianaldehyde is disclosed wherein the oxidation of the lactone ring of digitoxigenin-3-acetate is conducted with an alkaline periodate in the presence of a catalytic amount of ruthenium tetroxide obtained in situ by reacting RuO.sub.2 hydrate or RuCl.sub.3 with the alkaline periodate.
REFERENCES:
J. S. Boutagy et al. "Cardenolide Analogues". Aust. J. Chem., 24, pp. 2723-2728. 1971. Articles in German. No translations provided. Considered to the extent possible.
Claus Lindig. "Synthese 22-O-Substituierter Cardenolide Sowie Untersuchungen Uber Den Oxidativen Abbau Von Cardenoliden Mit Kaliumpermanganat". Journal F. Prakt. Chemie. Chem, 328, pp. 682-694. 1986. Articles in German. No translations provided. Considered to the extent possible.
Von M. Sch upbach et al. "Umsetzung Von 3-O-Acetyl-14-Anhydrodigitoxigenin Und 3-O-Acetyldigitoxigenin Mit Osmiumtetroxid". Helvetica Chimica Acta, vol. 54, pp. 2007-2016. 1971. Articles in German. No translations provided. Considered to the extent possible.
Gobbini Mauro
Torri Marco
Prior Kimberly J.
Sigma-Tau Industrie Farmaceutiche Riunite S.p.A.
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