1420299-97-3

Basic information

• Product Name: C₄₂H₃₈F₃PRuS
• Synonyms: C₄₂H₃₈F₃PRuS
• CAS NO: 1420299-97-3
• Molecular Weight: 763.869
• Mol File: 1420299-97-3.mol
• Article Data: 3

Chemical Properties

• CAS DataBase Reference: C₄₂H₃₈F₃PRuS(CAS DataBase Reference)
• NIST Chemistry Reference: C₄₂H₃₈F₃PRuS(1420299-97-3)
• EPA Substance Registry System: C₄₂H₃₈F₃PRuS(1420299-97-3)

Safety Data

• Hazardous Substances Data: 1420299-97-3(Hazardous Substances Data)

Upstream product

• 597-50-2 triethylphosphine oxide 
• 1420299-89-3 C₅₅H₅₁F₃PRuSSi⁽¹⁺⁾*C₃₂H₁₂BF₂₄^(1-) 
• 758-21-4 dimethylethylsilane 
• 1420299-84-8 [2,6-η6:η1-bis(2,4,6-trimethylphenyl)phenylthiolato]chlorido[tris(4-fluorophenyl)phosphine]ruthenium(II) 
• 1420299-69-9 [2,6-η6:η1-bis(2,4,6-trimethylphenyl)phenylthiolato]tris(4-fluorophenyl)phosphineruthenium(II)tetrakis[3,5-bis(trifluoromethyl)phenyl]borate 

Relevant articles and documents

A Neutral RuII Hydride Complex for the Regio- and Chemoselective Reduction of N-Silylpyridinium Ions

A detailed experimental analysis of the 1,4-selective reduction of pyridine with hydrosilanes catalyzed by a coordinatively unsaturated RuII thiolate complex is reported. The previously suggested intermediates, N-silylpyridinium ions and a neutral RuII hydride, have been independently synthesized and do indeed participate in the catalytic cycle. The resting state is not the cationic RuII complex initially used as the catalyst but its pyridine-coordinated congener. All RuII complexes, including the one resulting from hydrosilane activation, are in equilibrium with each other. The N-silylated 1,4-dihydropyridine together with the cationic RuII complex convert back into the corresponding N-silylpyridinium ion and the neutral RuII hydride (retro-hydrosilylation), followed by further backward reaction into the hydrosilane and the pyridine adduct of the cationic complex. These steps prove the overall reversibility of the transformation.

C(sp3)-F bond activation of CF3-substituted anilines with catalytically generated silicon cations: Spectroscopic evidence for a hydride-bridged Ru-S dimer in the catalytic cycle

Heterolytic splitting of the Si-H bond mediated by a Ru-S bond forms a sulfur-stabilized silicon cation that is sufficiently electrophilic to abstract fluoride from CF3 groups attached to selected anilines. The ability of the Ru-H complex, generated in the cooperative activation step, to intramolecularly transfer its hydride to the intermediate carbenium ion (stabilized in the form of a cationic thioether complex) is markedly dependent on the electronic nature of its phosphine ligand. An electron-deficient phosphine thwarts the reduction step but, based on the Ru-S catalyst, half of an equivalent of an added alkoxide not only facilitates but also accelerates the catalysis. The intriguing effect is rationalized by the formation of a hydride-bridged Ru-S dimer that was detected by 1H NMR spectroscopy. A refined catalytic cycle is proposed.