Process for the recovery of pure hellebrin

Details Process for the recovery of pure hellebrin Process for the recovery of pure hellebrin

1982-05-11

1984-03-06

Brown, Johnnie R.

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

Organic compounds

Carbohydrates or derivatives

536127, 536128, 536185, C07J 1900

Patent

active

044355637

ABSTRACT:
There is provided a process for the recovery of pure hellebrin which comprises extracting a defatted hellebrin extract dissolved in a water-alkanol mixture or water-acetone mixture with a mixture of a lower alkanol or acetone and di-, tri-, or tetrachloromethane (or dichloroethane) evaporating the extraction agent in a vacuum and then heating with ethanol until the deposition of the first hellebrin crystals begins.

REFERENCES:
patent: 3904598 (1975-09-01), Isaac
patent: 3912716 (1975-10-01), Isaac
Tschesche, Z. Naturforschg. 20b, 707 (1963).
Petricic, Acta Pharm., Jug. 17, 29 (1969).
Chem. Abst. vol. 67, p. 5400, item 57272c (1967).
Karrer, Helv. Chimica Acta, vol. 26 (1943) pp. 1353-1363.

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