Method for recovering indicine-N-oxide

Details Method for recovering indicine-N-oxide Method for recovering indicine-N-oxide

1982-08-23

1984-07-03

Rizzo, Nicholas S.

Organic compounds -- part of the class 532-570 series

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

424274, C07D20996

Patent

active

044580827

ABSTRACT:
An improved process for recovering Indicine-N-oxide from plant sources which involves water extracting the plant material, preferably by water buffered at pH 7, followed by adsorbing the Indicine-N-oxide from the extract, after which the Indicine-N-oxide is eluted from the adsorbent in alcoholic solution, then concentrated and purified as heretofore.
Desirably, the adsorbed Indicine-N-oxide is water washed prior to elution so as to remove any water soluble impurities that had been adsorbed from the extract.
A preferred adsorbent is a cross linked polystyrene.

REFERENCES:
patent: 3705905 (1972-12-01), Culnenor et al.
patent: 4353922 (1982-10-01), Pfister
Mattocks et al., J. Chem. Soc. 1961 5400.

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