3-[(5-甲基-呋喃-2-基)亚甲基]-1,5-二氧杂螺[5.5]十一烷-2,4-二酮
3-[(5-Methyl-furan-2-yl)methyl-ene]-1,5-dioxaspiro-[5.5]undecane-2,4-dione.
作者信息
Zeng Wu-Lan, Zhang Hua-Xiang, Jian Fang-Fang
机构信息
Microscale Science Institute, Department of Chemistry and Chemical Engineering, Weifang University, Weifang 261061, People's Republic of China.
出版信息
Acta Crystallogr Sect E Struct Rep Online. 2009 Jul 29;65(Pt 8):o2035. doi: 10.1107/S160053680902947X.
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.
标题化合物C(15)H(16)O(5)的不对称单元中有两个晶体学独立的分子。在每个分子中，1,3 - 二氧六环环呈信封式构象，环己烷环共有的C原子形成翻盖。两个分子中1,3 - 二氧六环环的五个基本平面（与最小二乘平面的最大偏差为0.049 (3) 和0.042 (3) Å）原子与呋喃环之间的二面角分别为7.15 (1)°和6.80 (1)°。晶体结构通过弱分子间C - H⋯O氢键得以稳定。
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