title: [4+3] cycloadducts from Lewis acid mediated reactions of acroleins with cyclopentadiene.
authors.affiliation: Institut für Organische Chemie, Universität Hannover, Schneiderberg 1 B, 30 167 Hannover, Germany.
authors.forename: Barbara
authors.initials: B
authors.lastname: Niess
authors.forename: H Martin R
authors.initials: HM
authors.lastname: Hoffmann