765942-90-3Relevant academic research and scientific papers
Nucleophilic addition reactions to the allenylidene complex [Cp*Ru=C=C=CPh2iPr2)]+: X-ray crystal structures of Cp*Ru{C(N=CPh2) CH=CPh2}(CO)(PMeiPr2)] [BAr4′]
Jiménez-Tenorio, Manuel,Palacios, M. Dolores,Puerta, M. Carmen,Valerga, Pedro
, p. 2776 - 2785 (2008/10/09)
The allenylidene complex [Cp* Ru=C=C=CPh2(CO) (PMeiPr2)][BAr4′] (1) reacts with benzophenoneimine yielding the azaallenyl derivative [Cp* Ru{C(N=CPh2)CH=CPh2}(CO) (PMei Pr2)][BAr4′] (2). The addition of primary or secondary amines to 1 yields vinylaminocarbenes, which are better formulated as azoniabutadienyl complexes [Cp* Ru{C(NRR′)CH=CPh2}(CO), (PMeiPr2)][BAr4′] (R = H, R′ = CH2C≡CH (3), R = H, R′ = Me (4), R = R′ = iPr (5)). Tertiary phosphines add to the Ca atom of the allenylidene chain furnishing allenylphosphonio species [Cp* Ru{C(PR3) C=CPh2} (CO)(PMeiPr2)][BAr4 ′] (PR3 = PMe3 (6), PMei Pr2 (7)). The reaction of 1 with propanethiol afforded the thiocarbene [Cp* Ru{C(SnPr) CH=CPh2} (CO) (PMeiPr2)][BAr4′] (8), which can be treated as a η1-thiabutadienyl.
