𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Die Struktur des Curare-Alkaloides Calebassinin-1 183. Mitteilung uber organische Naturstoffe

✍ Scribed by Armin Guggisberg; Roland Prewo; Jost H. Bieri; Manfred Hesse

Publisher
John Wiley and Sons
Year
1982
Tongue
German
Weight
557 KB
Volume
65
Category
Article
ISSN
0018-019X

No coin nor oath required. For personal study only.

✦ Synopsis

The Structure of the Calabash Curare Alkaloid Calebassinine‐1

The quaternary alkaloid calebassinine, isolated 1947 from Calabash Curare. has now been separated into calebassinine‐1 and ‐2. X‐ray structure determination of calebassinine‐1 led to structure 2 with relative configuration. A possible biogenetic pathway from 2,16‐dihydroakuammicine (3) as well as its pyrolytic decomposition to 3‐ethylpyridine (9), the quinoline derivative 8, methylchloride and norcale bassinine‐1 are discussed.

📜 SIMILAR VOLUMES

Die Konstitution des Alkaloides Julipros
Die Konstitution des Alkaloides Juliprosopin aus Prosopisjuliflora A. Dc. 176. Mitteilung über organische Naturstoffe
✍ Rita Ott-Longoni; Narayanaiyer Viswanathan; Manfred Hesse 📂 Article 📅 1980 🏛 John Wiley and Sons 🌐 German ⚖ 731 KB

**The Structure of the Alkaloid Juliprosopine from Prosopis juliflora A. Dc.** A new alkaloid, juliprosopine, has been isolated from __Prosopis__ __juliflora__ A. Dc. __(Leguminosae)__, for which structure **1** is proposed. The piperidine moiety could be elucidated on the basis of spectroscopic da

Die absolute Konfiguration von Macrolin,
Die absolute Konfiguration von Macrolin, einem Abbauprodukt des Alkaloides Villalstonin 179. Mitteilung über organische Naturstoffe
✍ Gisela Neukomm; Erika Kletzhäundler; Manfred Hesse 📂 Article 📅 1981 🏛 John Wiley and Sons 🌐 German ⚖ 493 KB

**The Absolute Configuration of Macroline, a Degradation Product of the Alkaloid Villalstonine** The absolute configuration of macroline **(1)**, a degradration product of villalstonine **(2)**, was determined. The chemical degradation of **1** gave a mixture of (–)‐(20__S__)‐20,21‐dihydro‐19‐desox

Die Struktur des Anhydro-isocalebassin-m
Die Struktur des Anhydro-isocalebassin-methyläthers; Säurekatalysierte Umlagerungen des Curare-Alkaloids C-Calebassin. 60. Mitteilung über Calebassen-Alkaloide [1]
✍ K. W. Gemmell; J. Monteath Robertson; G. A. Sim; Karl Bernauer; A. Guggisberg; M 📂 Article 📅 1969 🏛 John Wiley and Sons 🌐 German ⚖ 812 KB

Sul?zmai.y. Treatment of the Calebash alkaloid C-calebassine (l), C,PH48N40,++. 2 X-, with hot mineral acid yielded the anhydro-isocalebassine acid adduct 3H, with the formula C,H,,N,O+ ++ ' 3 X-. H,O. This mas converted into anhydro-isocalebassine methyl ether salts (4) C,,H,,N,O I-+. 2 X-. H,O wit