Synthesis and Comparative Analysis of Molecular and Supramolecular Structures of 4,8-Disubstituted 1,5-Dichloro-2,6-dioxotricyclo[5.1.0.0 3,5]octanes |
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| Authors: | Aidar T Gubaidullin Vakhid A Mamedov Igor A Litvinov Huan Ye and Sadao Tsuboi |
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| Institution: | (1) A.E.Arbuzov Institute of Organic and Physical Chemistry, 420088, Kazan, Russian Federation, RU;(2) Department of Environmental Chemistry and Materials, Okayama University, Tsushima, Okayama 700, Japan, JP |
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| Abstract: | Summary. A series of 4,8-disubstituted 1,5-dichloro-2,6-dioxotricyclo-5.1.0.03,5]octanes, synthesized by various methods, were studied by X-ray single crystal diffraction. The conformation (syn/anti) of the molecules does not depend on the method of preparation and nature of substituents. All the compounds crystallize in centrosymmetric space groups with half of the molecules in the asymmetric part of the unit cell. The main influence which the substituents render is on the packing of molecules in crystals and on the types of intermolecular interactions and supramolecular structures.Received November 7, 2002; accepted (revised) December 16, 2002
Published online June 23, 2003 |
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| Keywords: | , Michael addition, Darzens condensation, Homo-p-quinones, Supramolecular chemistry, X-Ray structure determination, |
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