Chemical examination of Lippia scaberrima, Sonder ("Beukess boss") / by Frederick B. Power and Frank Tutin.
- Frederick Belding Power
- Date:
- [1907?]
Licence: In copyright
Credit: Chemical examination of Lippia scaberrima, Sonder ("Beukess boss") / by Frederick B. Power and Frank Tutin. Source: Wellcome Collection.
9/18 page 455
![1903, 71, p. 186) and in cascara sagrada (Proc. Amer. Pharm. Assoc., 1904, 52, p. 299), when a precisely similar color was observed in every case. Furthermore, it was ascertained that the color was produced equally well in the absence of the trace of rhamnose. Since making these comparative tests, we have observed that similar experiments have been conducted by Ottolenghi [Atti R. Accad. Lined, 1906 [V], 15, i, 44-47, and Jour. Chem. Soc. Abstr, 1906, 90, ii, p. 311), and with the same results. This test must therefore be declared valueless as a means of distinguishing between cholesterol and the phytosterols. The alkaline, aqueous liquid, from which the above-described alcohols and hydrocarbons had been removed by means of ether, was then concentrated, acidified with sulphuric acid, and distilled in steam. The distillate contained a small quantity of an oily acid, which was extracted with ether and converted into its potassium salt, and from the latter six fractions of silver salt were successively precipitated. These silver salts were dried in a vacuum, and analyzed. 1st fraction, 0-2703 gave o’ 1396 Ag. 2d “ 0-3047 “ 0T585 Ag. 3d “ 0-2830 “ 0-1474 Ag. 4th “ 0-2509 “ 0-1306 Ag. 5th “ 0*1887 “ 0-0988 Ag. 6th “ 0*0947 “ 0-0498 Ag. Ag = 51-6 Ag = 52-0 Ag = 52-1 Ag = 52-1 Ag = 522 Ag = 52-6 C5H902 Ag requires Ag — 51*7 per cent. C4H702 Ag “ Ag = 554 “ “ 1 he acid removed by ether from the steam distillate therefore consisted essentially of a valeric acid, and, on examining the aqueous liquid from which it had been separated, it was found to contain some formic acid together with a little butyric acid. Isolation of a New Crystalline Alcohol, Lippianol, Cl:HvO.— OH. The liquid in the distillation flask, from which the above-described volatile acids had been obtained by steam distillation, was shaken with ether, when it was observed that a small quantity of a dark green substance remained undissolved. This was collected on a filter and dried on a porous tile, after which it was dissolved in ethyl acetate and treated with animal charcoal, when, after filtering the liquid, a substance separated in the form of colorless needles. The](https://iiif.wellcomecollection.org/image/b30611738_0009.jp2/full/800%2C/0/default.jpg)
