The [2+2] cycloaddition of alkynes at a Ru-P pi-bond.
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.
Derrah
Eric J
EJ
Dept. of Chemistry, University of Victoria, P.O. Box 3065, Victoria, BC, CanadaV8W 3V6.
McDonald
Robert
R
Rosenberg
Lisa
L
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
D000480:Alkynes; D008024:Ligands; D009942:Organometallic Compounds; D012428:Ruthenium