title: The first cobalt catalyzed [2 + 2 + 2] alkyne cyclotrimerization in aqueous medium at room temperature.
abstract: Chelate complex 1 (5 mol%) was found to catalyze the [2 + 2 + 2] cyclization of terminal alkynes in good yields in a 80/20 mixture of water and ethanol at room temperature without further activation.
authors.affiliation: Institut für Organische Chemie, Universität Hannover, Schneiderberg 1B, D-30167 Hannover, Germany.
authors.forename: Li
authors.initials: L
authors.lastname: Yong
authors.forename: Holger
authors.initials: H
authors.lastname: Butenschön