New lines for the preparation of cyclopentadecanone (exaltone) and racemic muscon starting from cyclododecanone via bicyclic intermediate steps are described. ## FIRMENICH & CIE Laboratoire d'Etudes des Prockdks La Plaine-Genhve LITERATURVERZEICHNI S [l] G. WILKE, Angew. Chem. 69, 397 (1957); 75
Synthese von Exalton und racemischem Muscon aus Cyclododecanon Vorläufige Mitteilung
✍ Scribed by G. Ohloff; J. Becker; K. H. Schulte-Elte
- Publisher
- John Wiley and Sons
- Year
- 1967
- Tongue
- German
- Weight
- 234 KB
- Volume
- 50
- Category
- Article
- ISSN
- 0018-019X
No coin nor oath required. For personal study only.
✦ Synopsis
Pyrazines and pyridines occurring in a coffee concentrate are analyzed by two procedures. 24 compounds have been identified and the presence of some 10 more is revealed. The syntheses, mass and infrared spectral data of reference compounds are given.
FIRMENICH & CIE, Laboratoires de Recherches Gentwe BIBLIOGRAPHIE
📜 SIMILAR VOLUMES
## Abstract Aus Ephestia kühniella Zeller wurden drei weitere Pterine, Erythropterin, Lepidopterin und Ekapterin, isoliert. Die Struktur von Ekapterin konnte ermittelt werden. Eine Synthese von Erythropterin und Ekapterin wird beschrieben.
Substance P has been isolated in an apparently pure state and shown to be biologically and chemically distinct from Bradykinin though the two substances have some properties in common.
**Repeatable ring expansions by [2,3]‐sigmatropic shifts in cyclic allylsulfonium allylides; synthesis of medium‐ and large‐sized thiacycles** Allylation of a 2‐vinyl thiacyclus with allyl bromide in 2,2,2‐trifluoroethanol followed by ylide generation by use of aqueous potassium hydroxide results i