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3,3-Dimethyl-cis-9a,13a-diphenyl-2,3,9a,11,12,13a-hexa-hydro-1H-benzo[h][1,4]dioxino[2',3':5,6][1,4]dioxino[2,3-f]chromene

Bernardes BO 1 , Ferreira AB 1 , Wardell JL 2 , Wardell SM 3 , Netto-Ferreira JC 1 , Tiekink ER 4

Affiliations 

  • 1 Departamento de Química, Universidade Federal Rural do Rio de Janeiro, 23851-970 Seropédica, RJ, Brazil
  • 2 Instituto de Tecnologia em Fármacos-Farmanguinhos, Fundação Oswaldo Cruz, 21041-250 Rio de Janeiro, RJ, Brazil ; Department of Chemistry, University of Aberdeen, Old Aberdeen AB24 3UE, Scotland
  • 3 CHEMSOL, 1 Harcourt Road, Aberdeen AB15 5NY, Scotland
  • 4 Department of Chemistry, University of Malaya, 50603 Kuala Lumpur, Malaysia
Acta Crystallogr Sect E Struct Rep Online, 2013;69(Pt 9):o1487-8.
PMID: 24427106 DOI: 10.1107/S1600536813023660

Abstract

In the title di-hydro-dioxin, C31H28O5, the dioxane ring has a chair conformation, whereas each of the pyran and dioxine rings has an envelope conformation with methyl-ene and quaternary C atoms, respectively, being the flap atoms. The phenyl rings are cis and form a dihedral angle of 82.11 (10)°. The molecular structure is stabilized by C-H⋯O contacts. In the crystal packing, supra-molecular layers parallel to (101) are sustained by C-H⋯π inter-actions.

* Title and MeSH Headings from MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.

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