title: A gold-catalyzed domino process to the steroid framework.
abstract: The facile formation of the B and C ring of rac-desoxyequilenin and of a chrysenone derivative in just one preparative step is demonstrated, applying a gold-catalyzed domino process, which involves a benzopyrylium cation as the key intermediate and an intramolecular [3 + 2] cycloaddition as the key step.
authors.affiliation: 1 Fakultät für Chemie, Ruhr-Universität Bochum, Universitätsstrasse 150, D-44780 Bochum, Germany.
authors.forename: Dirk
authors.initials: D
authors.lastname: Hildebrandt
authors.forename: Gerald
authors.initials: G
authors.lastname: Dyker