124223-20-7

Basic information

• Product Name: [(CH₃C(CH₂PPh₂)3)Rh(CO)(H)]
• CAS NO: 124223-20-7
• Molecular Weight: 756.606
• Mol File: 124223-20-7.mol
• Article Data: 12

Chemical Properties

• CAS DataBase Reference: [(CH₃C(CH₂PPh₂)3)Rh(CO)(H)](CAS DataBase Reference)
• NIST Chemistry Reference: [(CH₃C(CH₂PPh₂)3)Rh(CO)(H)](124223-20-7)
• EPA Substance Registry System: [(CH₃C(CH₂PPh₂)3)Rh(CO)(H)](124223-20-7)

Safety Data

• Hazardous Substances Data: 124223-20-7(Hazardous Substances Data)

Upstream product

• 180991-46-2 (triphos)Rh(η(3)-(CO)5W(2-vinylthiophenolate)) 
• 1333-74-0 hydrogen 
• 75070-58-5 {Rh(CO)2(triphos)}PF₆ 
• 22560-16-3 lithium triethylborohydride 
• 917-54-4 methyllithium 
• 121374-19-4 {RhH₂(CO)(triphos)}PF₆ 
• 2388-07-0 lithium ethoxide 
• 816-43-3 lithium diethylamide 
• 100333-94-6 (triphos)RhH₃ 
• 62792-06-7 {RhCl₃(CH₃C(CH₂P(C₆H₅)2)3)} 
• 16883-45-7 tetramethylammonium borohydride 
• 34440-04-5 [Rh(CO)Cl(1,1,1-tris(diphenylphosphinomethyl)ethane)] 
• 109-72-8 n-butyllithium 
• 22031-12-5 [2-((diphenylphospino)methyl)-2-methyl-1,3-propanediyl]bis[diphenylphosphine] 

Downstream Products

• 75070-58-5 {Rh(CO)2(triphos)}PF₆ 
• 34440-04-5 [Rh(CO)Cl(1,1,1-tris(diphenylphosphinomethyl)ethane)] 
• 101075-57-4 {RhBr(CO)(CH₃C(CH₂P(C₆H₅)2)3)} 
• 101075-58-5 (triphos)Rh(CO)(I) 
• 124154-40-1 CH₃C(CH₂P(C₆H₅)2)3Rh(H)2(CO)⁽¹⁺⁾*B(C₆H₅)4^(1-)={CH₃C(CH₂P(C₆H₅)2)3Rh(H)2(CO)}B(C₆H₅)4 
• 124154-39-8 CH₃C(CH₂P(C₆H₅)2)3Rh(CO)(C₂H₄)⁽¹⁺⁾*B(C₆H₅)4^(1-)={CH₃C(CH₂P(C₆H₅)2)3Rh(CO)(C₂H₄)}B(C₆H₅)4 
• 110544-60-0 Li{Ph(CO)(triphos)} 
• 121373-96-4 {Rh(CO)2{η2-CH2P(C6H5)2}2C(CH3)CH2P(C6H5)2}Li 
• 111-71-7 heptanal 
• 925-54-2 2-methylhexanal 

Relevant articles and documents

Kinetics and mechanisms of homogeneous catalytic reactions. Part 9. Hydroformylation of 1-hexene catalyzed by a rhodium system containing a tridentated phosphine

A kinetic study of the homogeneous hydroformylation of 1-hexene to the corresponding aldehydes (heptanal and 2-methyl-hexanal) was carried out by using a rhodium catalyst formed by the addition of 1 equiv. of 1,1,1-tris(diphenylphosphinomethyl)ethane (triphos) to the complex Rh(acac)(CO)2 under mild reaction conditions (80 °C, 2-10 atm of syn-gas) in toluene; linear to branched ratios (l/b) varied from 1.3 to 5.8, depending on the reaction conditions. The reaction rate is first order with respect to the concentration of Rh, fractional order with respect to 1-hexene concentration and zero order with respect to dissolved hydrogen concentration. Increasing the CO pressure up to a threshold value of 2.1 atm accelerates the reaction, further increments inhibit the reaction. Complex RhH(CO)(κ3-triphos) was isolated and characterized by IR and NMR (1H and 31P{H}). The kinetic data and related co-ordination chemistry are consistent with a mechanism involving RhH(CO)(κ2-triphos) as the active species and the migratory insertion of the alkene into the metal-hydride bond as the rate limiting step. This catalytic cycle is rather similar to that proposed for RhH(CO)(PPh3)3 and for RhH(CO)2(dppe); however, the presence of a triphos ligand co-ordinated in a κ2 mode through the cycle resulted in l/b ratio higher than those obtained in systems containing bidentated phosphines.

Efficient rhodium catalysts for the hydrogenolysis of thiophenic molecules in homogeneous phase

In the presence of strong bases, the C - S insertion complexes (triphos)Rh[η3-S(C6H4)CH=CH2] and (triphos)Rh(η3-SCH=CHCH=CH2) as well as the π-alkyne complex [(triphos)Rh(η2-MeO

Reversible arm-off dissociation of the tripodal MeC(CH2PPh2)3 in HRh(CO)[MeC(CH2PPh2)3] under hydroformylation conditions

The reversible arm-off dissociation of the tripodal ligand MeC(CH2PPh2)3 in HRh(CO) [η3-MeC-(CH2PPh2)3] (1) under H2/CO (1:1) was studied by high-pressure IR and NMR s