Angewandte Chemie International Edition

Cover image for Vol. 55 Issue 36

Editor: Peter Gölitz, Deputy Editors: Neville Compton, Haymo Ross

Online ISSN: 1521-3773

Associated Title(s): Angewandte Chemie, Chemistry - A European Journal, Chemistry – An Asian Journal, ChemistryOpen, ChemPlusChem, Zeitschrift für Chemie

Cover Picture (Angew. Chem. Int. Ed. Engl. 8/1994)

33_08/1994The cover picture shows the deflagration of 20 mg of hexaspiro-[]dotetraconta-4,6,11,13,18,20,25,27,32,34,39,41-dodecayne—truly an exploding [6]rotane—and the chair-shaped structure of its 30-membered ring with six 1,3-butadiyne and six spirocyclopropane units. The compound is obtained in 39% yield from the oxidative coupling of two open-chain halves and decomposes spontanteously upon heating or impact. The picture was put together electronically from a videotape of the explosion and a representation of the crystal structure (fototeam Hansjürgen Gutzeit GmbH, Göttingen (FRG)). A. de. Meijere et al. report on this and related molecules on p. 869 ff.

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