title: The [2+2] cycloaddition of alkynes at a Ru-P pi-bond.
abstract: The Ru[double bond, length as m-dash]P double bond in the 5-coordinate terminal phosphido complex [Ru(eta(5)-indenyl)(PR(2))(PPh(3))] undergoes regioselective [2+2] cycloaddition with simple and activated alkynes to give metallaphosphacyclobutene complexes. These unusual examples of alkyne insertion into a metal-heteroatom bond represent potentially important intermediates in stereoselective routes to new phosphine reagents and ligands.
authors.affiliation: Dept. of Chemistry, University of Victoria, P.O. Box 3065, Victoria, BC, CanadaV8W 3V6.
authors.forename: Eric J
authors.initials: EJ
authors.lastname: Derrah
authors.forename: Robert
authors.initials: R
authors.lastname: McDonald
authors.forename: Lisa
authors.initials: L
authors.lastname: Rosenberg
mesh_terms: D000480:Alkynes / Q000737:chemistry*; D018360:Crystallography, X-Ray; D003500:Cyclization; D008024:Ligands; D008958:Models, Molecular; D015394:Molecular Structure; D009942:Organometallic Compounds / Q000138:chemical synthesis* / Q000737:chemistry*; D012428:Ruthenium / Q000737:chemistry*; D013237:Stereoisomerism
chemical_list: D000480:Alkynes; D008024:Ligands; D009942:Organometallic Compounds; D012428:Ruthenium