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Typical procedure . Air-dried and pulverised roots (1.5 kg) of this plant were exhaustively extracted under reflux with benzene. The solvent was distilled off under the reduced pressure to yield 8 g of the extract which was then column chromatographed over silica gel. Elution of the column with petroleum ether: benzene (4:3) eluate yielded an impure solid which on rechromatography over silica-gel column afforded a pure solid crystallized from petroleum-ether as crystals (I), yield: 34mg (0.0023 %).
Psoralen, the parent furocoumarin.
|This article is licensed under the GNU Free Documentation License. It uses material from the Wikipedia article "Imperatorin". A list of authors is available in Wikipedia.|