Protonation of manganese phosphonioallenyl complexes |
| |
Authors: | Kamil I. Utegenov |
| |
Affiliation: | A. N. Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, 28 ul. Vavilova, 119991 Moscow, Russian Federation |
| |
Abstract: | The addition of phosphines to the manganese allenylidene complexes Cp(CO)2Mn C C C(Ph)R (R = H, Ph) proceeds selectively at the Cα atom to result in the α-phosphonioallenyl complexes Cp(CO)2Mn−-C(+PR31) C C(Ph)R. The protonation of the latter affords the η2-(1,2)-phosphonioallenes Cp(CO)2Mn{η2-(1,2)-HC(+PR31) C C(Ph)R}, rather than the phosphoniovinylcarbenes Cp(CO)2Mn C(+PR31)-HC C(Ph)R. All complexes obtained are stereochemically rigid and do not isomerize into the η2-(2,3)-phosphonioallene isomers. |
| |
Keywords: | Allenylidene complexes Nucleophilic addition Phosphonioallenyl complexes Protonation Phosphonioallene complexes |
本文献已被 ScienceDirect 等数据库收录! |
|