title: 3,4-(4-Methoxybenzo):8,9-benzobicyclo[4.4.1]undeca-3,8-dien-11-one ethylene acetal.
abstract: The title compound, 5-methoxyspiro[tetracyclo[8.8.1.0(3,8).0(12,17)]nonadeca-3,5,7,12,14,16-hexene-19,2'-[1,3]dioxolane], C(22)H(24)O(3), exhibits a twin-chair conformation with the aromatic rings overlying each other. Comparison of the dihedral angle between these two rings with those from previously reported [3.3]orthocyclophanes of this type suggests the presence of a weak attractive charge-transfer interaction between the two, different, stacked arenes.
authors.affiliation: School of Chemistry, University of Leeds, Woodhouse Lane, LS2 9JT, England.
authors.forename: Xiaoming
authors.initials: X
authors.lastname: Liu
authors.forename: Colin A
authors.initials: CA
authors.lastname: Kilner
authors.forename: Malcolm A
authors.initials: MA
authors.lastname: Halcrow
mesh_terms: D000080:Acetals / Q000138:chemical synthesis* / Q000737:chemistry; D003067:Coenzymes / Q000138:chemical synthesis* / Q000737:chemistry; D018360:Crystallography, X-Ray; D005692:Galactose Oxidase / Q000378:metabolism*; D008958:Models, Molecular; D008968:Molecular Conformation
chemical_list: C459722:3,4-(4-methoxybenzo)-8,9-benzobicyclo(4.4.1)undeca-3,8-dien-11-one ethylene acetal; D000080:Acetals; D003067:Coenzymes; D005692:Galactose Oxidase