title: Rhodium(I)-catalyzed [2+2+1] cycloadditions of 1,3-dienes, alkenes, and CO.
abstract: Initial examples of a Rh(I)-catalyzed [2+2+1] reaction of diene-enes and CO are described. This method allows for the facile, efficient, and diastereoselective construction of a variety of alkenyl cyclopentanones in good to excellent yields. Control studies show that the diene moiety is required for this process as bis-enes do not give the [2+2+1] products under the same conditions.
authors.affiliation: Department of Chemistry, Stanford University, Stanford, California 94305, USA. wenderp@stanford.edu
authors.forename: Paul A
authors.initials: PA
authors.lastname: Wender
authors.forename: Mitchell P
authors.initials: MP
authors.lastname: Croatt
authors.forename: Nicole M
authors.initials: NM
authors.lastname: Deschamps