title: Catalytic Pauson-Khand-type reaction using aldehydes as a CO source.
abstract: [reaction: see text]. Rhodium complex-catalyzed carbonylative alkene-alkyne coupling proceeds using aldehydes as a CO source. Cinnamaldehyde is the best CO donor, and various cyclopentenones were provided in high isolated yields by a solvent-free system.
authors.affiliation: Department of Chemistry, Faculty of Science, Okayama University, Tsushima, Okayama 700-8530, Japan. tshibata@cc.okayama-u.ac.jp
authors.forename: Takanori
authors.initials: T
authors.lastname: Shibata
authors.forename: Natsuko
authors.initials: N
authors.lastname: Toshida
authors.forename: Kentaro
authors.initials: K
authors.lastname: Takagi