Methyl 2-(3a,8a-dimethyl-4-oxodecahydroazulen-6-yl)acrylate
| Autor: | Mohamed Tebbaa, Ahmed Benharref, Moha Berraho, Jean Claude Daran, Mohamed Akssira, Ahmed Elhakmaoui |
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| Jazyk: | angličtina |
| Rok vydání: | 2011 |
| Předmět: | |
| Zdroj: | Acta Crystallographica Section E, Vol 67, Iss 8, Pp o2187-o2188 (2011) |
| Druh dokumentu: | article |
| ISSN: | 16005368 1600-5368 |
| DOI: | 10.1107/S1600536811029928 |
| Popis: | The title compound, C16H24O3, was synthesized from ilicic acid, which was isolated from the aerial part of Inula viscosa (L) Aiton [or Dittrichia viscosa (L) Greuter]. The asymmetric unit contains two independent molecules, in each of which the seven-membered ring shows a chair conformation, whereas the five-membered ring presents disorder. In the two molecules, three C atoms in the five-membered ring are disordered over two positions with site-occupancy factors of 0.53/0.47 and 0.83/0.17. The dihedral angle between the two rings is different in the two molecules [31.7 (3) and 47.7 (7)°]. The crystal structure is stabilized by weak intermolecular C—H...O hydrogen-bond interactions. |
| Databáze: | Directory of Open Access Journals |
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