Angewandte Chemie International Edition

Cover image for Vol. 56 Issue 23

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, ChemPhotoChem, ChemPlusChem, Zeitschrift für Chemie

Cover Picture (Angew. Chem. Int. Ed. Engl. 12/1992)

31_12/1992The cover picture shows the structure of hexabutadiynylbenzene protected six-fold by tert-butyl groups. Other derivatives have also been prepared, as well as an impure sample of the parent hydrocarbon C30H6. The compound has a 54 π-electron system and might be able to be transformed into the cyclic [6]phenylene, antikekulene, by regioselective, CpCo-catalyzed, threefold co-cyclization with ethyne. This contributin, like Eaton's cubane review last month, shows once more that the chemistry of hydrocarbons has lost none of its appeal. More about hexabutadiynylbenzene and advances en route to the synthesis of tetraethynylmethane is reported by K. C. P. Vollhardt et al. on pages 1643 and 1648.

| Table of Contents