76648-27-6Relevant academic research and scientific papers
Abbaureaktionen des anionischen Dreikernclusters - mit Brom und Iod. Synthese und Molekuelstruktur von Ru2(CO)5(PPh3)(μ2-PPh2)(μ2-I)
Jungbluth, Hubert,Stoeckli-Evans, Helen,Suess-Fink, Georg
, p. 339 - 346 (1989)
The reaction of a stoichiometric amount of bromine or iodine with the trinuclear cluster anion - (1) results in the formation of the neutral dinuclear clusters Ru2(CO)5(PPh3)(μ2-PPh2)(μ2-X) (2: X=Br, 3: X=I).From the reaction of iodine, in addition the dinuclear cluster are obtained Ru2(CO)6(μ2-PPh2)(μ2-I) (4) and Ru2(CO)4(PPh3)2(μ2-I)2 (5) as byproducts.An excess of iodine degrades the trinuclear cluster 1 to the known mononuclear complex Ru(CO)3(PPh3)I2 (6), which readily converts into the dinuclear system Ru2(CO)4(PPh3)2I2(μ2-I)2 (7) that resolves into two isomers.
One-pot syntheses of alcohols from olefins through Co/Ru tandem catalysis
Frediani, Piero,Mariani, Paolo,Rosi, Luca,Frediani, Marco,Comucci, Alessandro
, p. 80 - 85 (2008/10/09)
The one-pot synthesis of cyclohexylmethanol from cyclohexene has been realized using a tandem catalytic system formed by the Co2(CO)8 complex for hydroformylation and different [Ru(CO)2(PPh3)X2]2 (X: Cl, Br, I) complexes for hydrogenation. The sole ruthenium(II) complexes [Ru(CO)2(PPh3)X2]2 (X: Cl, Br, I) are also able to synthesize cyclohexylmethanol from cyclohexene but a large part of the olefin is hydrogenated to alkane. Furthermore the sole ruthenium complexes are able to hydrogenate aldehydes to the corresponding alcohols even in the presence of carbon monoxide. The tandem catalytic system (Co-Ru) allows for the syntheses of several primary alcohols from the corresponding olefins with a total conversion and a very high selectivity (up to 97%).
