1353055-64-7Relevant academic research and scientific papers
Transfer hydrogenation of ketones catalyzed by surface-active ruthenium and rhodium complexes in water
Kalsin, Alexander M.,Peganova, Tat'yana A.,Novikov, Valentin V.,Zhamoytina, Alexandra I.,Gonsalvi, Luca,Peruzzini, Maurizio
, p. 846 - 854 (2014/01/23)
An improved, high-yield, one-pot synthetic procedure for water-soluble ligands functionalized with trialkyl ammonium side groups H2N(CH 2)2NHSO2-p-C6H4CH 2[NMe2(CnH2n+1)]+ ([HLn]+; n=8, 16) was developed. The corresponding new surface-active complexes [(p-cymene)RuCl(Ln)] and [Cp*RhCl(Ln)] (Cp=η5-C5Me 5) were prepared and characterized. For n=16 micelles are formed in water at concentrations as low as 0.6 mM, as demonstrated by surface-tension measurements. The complexes were used for catalytic transfer hydrogenation of ketones with formate in water. Highly active catalyst systems were obtained in the case of complexes bearing C16 tails due to their ability to be adsorbed at the water/substrate interface. The scope of these catalyst systems in aqueous solutions was extended from partially water soluble aryl alkyl ketones (acetophenone, butyrophenone) to hydrophobic dialkyl ketones (2-dodecanone). Copyright
Ruthenium(II)-catalyzed transfer hydrogenation of aldehydes with new water-soluble monotosylated ethylenediamines as ligands
Huo, Hengrui,Zhou, Zhongqiang,Zhang, Aiqing,Wu, Lamei
, p. 261 - 268 (2012/05/20)
New water-soluble monotosylated ethylenediamines containing quaternary ammonium groups were conveniently synthesized from ethylenediamine. The ruthenium catalysts prepared in situ from ruthenium complex [RuCl 2(p-cymene)]2 and water-soluble monotosylated ethylenediamine ligands were used in transfer hydrogenation of aldehydes, and excellent conversions and chemoselectivities were achieved with sodium formate as reductant in neat water. Springer Science+Business Media B.V. 2011.
