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Über einige neue Bispirane |
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| Authors: | Prof. Dr. Stefan Smoliński Janusz Jamrozik Maria Jamrozik |
| Affiliation: | (1) Stereochemisches Laboratorium, Institut für Chemie, Jagellonische Universität, Krupnicza 41, PL-30060 Kraków, Polen |
| Abstract: | We have obtained four new bispirane systems in which both spiroatoms are vicinal atoms in cyclopropane or cyclobutane rings and in which the heterocyclic component has the basic structure of 1,4-dioxep-2-ene. We have shown that from two possibilities (bispiran, propellan) the general reaction leads only to a bispiran system. To the bispiran2 exhibiting the highest hyperchromism we ascribed the bispirocoplanar conformation (Fig. 1). Mit 3 Abbildungen |
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