Über die Struktur der Choleinsäuren
- 1 January 1943
- journal article
- research article
- Published by Walter de Gruyter GmbH in Hoppe-Seyler´s Zeitschrift Für Physiologische Chemie
- Vol. 278 (1-6) , 230-235
- https://doi.org/10.1515/bchm2.1943.278.1-6.230
Abstract
Hydnocarpic, chaulmoogric, dihydrohydnocarpic and dihydrochaulmoogric acids were prepared (Buu-Hoi, Cag-niant u. Janicaud, C. r. Acad. Sci., 212: 577, 729, 1941). Chaulmoogryl alcohol was obtained by reduction of chaulmoogric acid ethyl ester in isoamyl alcohol. Catalytic hydrogenation gave dihydrochaulmoogryl alcohol. Phenyl-undecyl acid ethyl ester was prepared by Friedel-Crafts reaction by condensation of 11-bromoundecylacid ethyl ester with benzene. Choleinic acid was prepared in the usual way by dissolving the components in absolute alcohol. Desoxycholic acid formed crystalline molecular compounds with ring containing acids, acid esters and alcohols, such as the above, and with nitriles. These compounds were combined according to the laws of the acyclic series. These observations are not in agreement with the theory of Kratky and Giacomello (Wiener Berichte, 145, II b: 1097, 1936) and require further physical and chemical investigations of the choleinic acids.This publication has 0 references indexed in Scilit: