Journal of Chemical Crystallography

, Volume 43, Issue 4, pp 223–227 | Cite as

Syntheses and Crystal Structures of 1,5-Dioxaspiro[5.5]undecane-2,4-dione Derivatives

Original Paper

Abstract

The 3-(2,3,4-trimethoxybenzylidene)-1,5-dioxaspiro[5.5]undecane-2,4-dione 1 and 3-(3,4,5-trimethoxybenzylidene)-1,5-dioxaspiro[5.5]undecane-2,4-dione 2 have been synthesized and characterized by X-ray single-crystal diffraction, IR and UV–Vis. Compound 1 belongs to the orthorhombic system, space group Pna21 with a = 10.182(2) Å, b = 11.828(2) Å, c = 14.356(3) Å, α = 90°, β = 90°, γ = 90°, V = 1,729.0(6) Å3, Z = 4. Compound 2 is of Triclinic system, space group P-1 with a = 8.7807(18) Å, b = 9.4383(19) Å, c = 11.450(2) Å, α = 98.64(3)°, β = 103.28(3)°, γ = 99.44(3)°, V = 893.4(3) Å3, Z = 2. It is very interesting that there are only C–H···O and C–H···π intermolecular interaction in the 1, while there are still π···π stacking interactions except for C–H···O and C–H···π intermolecular interaction in the structure of 2.

Graphical Abstract

Two new spiro compounds, 3-(2,3,4-trimethoxybenzylidene)-1,5-dioxaspiro[5.5]undecane-2,4-dione 1 and 3-(3,4,5-trimethoxybenzylidene)-1,5-dioxaspiro[5.5]undecane-2,4-dione 2 have been synthesized and characterized by X-ray single-crystal diffraction, IR and UV–Vis.

Keywords

Synthesis Crystal structure 1,5-Dioxaspiro[5.5]undecane-2,4-dione Spiro compound 

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Copyright information

© Springer Science+Business Media New York 2013

Authors and Affiliations

  1. 1.Department of Chemistry, Chemical Engineering and Environmental Engineering, MicroScale Science InstituteWeifang UniversityWeifangChina

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