194300-68-0Relevant academic research and scientific papers
Reaction of the in-situ-generated ruthenium-acetylide complex C5Me5Ru(PPh3)C≡CPh with small molecules
Yi, Chae S.,Liu, Nianhong,Rheingold, Arnold L.,Liable-Sands, Louise M.,Guzei, Ilia A.
, p. 3729 - 3731 (1997)
A coordinatively unsaturated acetylide species C5Me5Ru(PPh3)C≡CPh (1) was generated in situ from the reaction of ruthenium-vinylidene complex C5-Me5Ru(Cl)(PPh3)=C=CHPh (2) with Et3N. The vinylidene complex 2 was prepared from the substitution reaction of C5Me5Ru(PPh3)2Cl with PhC≡CH. The in-situ-generated 1 was found to react readily with a variety of small molecules. For example, the reaction of 1 with CO produced the stable adduct C5Me5Ru(CO)-(PPh3)C≡CPh (3) in 85% yield, the structure of which was established by X-ray crystallography. The similar reactions of 1 with H2 and PhC≡CPh also gave the hydride complex C5Me5Ru(PPh3)(H)(H2C=CHPh) (4) (76% yield) and the alkyne complex C5Me5Ru(PPh3)-(PhC≡CPh)C≡CPh (5) (85% yield), respectively. The reaction of 1 with CO2 produced the carboxylate complex C5Me5Ru(PPh3)(η2-O 2CC≡CPh) (6) from the insertion of CO2 to the ruthenium-acetylide carbon bond.
