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α-Costic anhydride

The title compound [systematic name: 2-(4a,8-dimethyl-1,2,3,4,4a,5,6,8a-octa­hydro­naphthalen-2-yl)acrylic acid anhydride], C(30)H(42)O(3), is a new isocostic anhydride which was synthesized from the aerial part of Inula Viscosa­ (L) Aiton [or Dittrichia Viscosa­ (L) Greuter]. The mol­ecule adopts a...

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Detalles Bibliográficos
Autores principales: Tebbaa, Mohamed, Akssira, Mohamed, Elhakmaoui, Ahmed, El Ammari, Lahcen, Benharref, Ahmed, Berraho, Moha
Formato: Texto
Lenguaje:English
Publicado: International Union of Crystallography 2010
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2983650/
https://www.ncbi.nlm.nih.gov/pubmed/21580353
http://dx.doi.org/10.1107/S1600536810005064
Descripción
Sumario:The title compound [systematic name: 2-(4a,8-dimethyl-1,2,3,4,4a,5,6,8a-octa­hydro­naphthalen-2-yl)acrylic acid anhydride], C(30)H(42)O(3), is a new isocostic anhydride which was synthesized from the aerial part of Inula Viscosa­ (L) Aiton [or Dittrichia Viscosa­ (L) Greuter]. The mol­ecule adopts an essentially linear shape with two terminal fused-rings bridged by the anhydride group. The external rings have the same conformation (half-chair) while each of the two inner rings has an almost ideal chair conformation. In the crystal, inter­molecular C—H⋯O inter­actions link the mol­ecules into a two-dimensional array in the bc plane.