3-[(5-Methyl-furan-2-yl)methyl-ene]-1,5-dioxaspiro-[5.5]undecane-2,4-dione

There are two crystallographically independent mol-ecules in the asymmetric unit of the title compound, C(15)H(16)O(5). In each, the 1,3-dioxane ring is in an envelope conformation with the C atom common to the cyclo-hexane ring forming the flap. The dihedral angles between the five essentially plan...

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Bibliographic Details
Published inActa crystallographica. Section E, Structure reports online Vol. 65; no. Pt 8; p. o2035
Main Authors Zeng, Wu-Lan, Zhang, Hua-Xiang, Jian, Fang-Fang
Format Journal Article
LanguageEnglish
Published United States International Union of Crystallography 29.07.2009
Subjects
Organic Papers
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Summary:There are two crystallographically independent mol-ecules in the asymmetric unit of the title compound, C(15)H(16)O(5). In each, the 1,3-dioxane ring is in an envelope conformation with the C atom common to the cyclo-hexane ring forming the flap. The dihedral angles between the five essentially planar [maximum deviations from the least-squares planes of 0.049 (3) and 0.042 (3) Å] atoms of the 1,3-dioxane ring and the furan ring in the two mol-ecules are 7.15 (1) and 6.80 (1)°. The crystal structure is stabilized by weak inter-molecular C-H⋯O hydrogen bonds.
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ISSN:1600-5368
1600-5368
DOI:10.1107/S160053680902947X