34440-04-5

Basic information

• Product Name: (((C₆H₅)2PCH₂)3C(CH₃))RhCl(CO)
• CAS NO: 34440-04-5
• Molecular Weight: 791.051
• Mol File: 34440-04-5.mol
• Article Data: 3

Chemical Properties

• CAS DataBase Reference: (((C₆H₅)2PCH₂)3C(CH₃))RhCl(CO)(CAS DataBase Reference)
• NIST Chemistry Reference: (((C₆H₅)2PCH₂)3C(CH₃))RhCl(CO)(34440-04-5)
• EPA Substance Registry System: (((C₆H₅)2PCH₂)3C(CH₃))RhCl(CO)(34440-04-5)

Safety Data

• Hazardous Substances Data: 34440-04-5(Hazardous Substances Data)

Upstream product

• 75070-58-5 {Rh(CO)2(triphos)}PF₆ 
• 1112-67-0 tetrabutyl-ammonium chloride 
• 105139-41-1 (triphos)RhCl(C₂H₄) 
• 15318-33-9 trans-carbonyl(chloro)bis(triphenylphosphine)rhodium(I) 
• 12092-47-6 di-μ-chloro-bis(1,5-cyclooctadiene)dirhodium 
• 22031-12-5 [2-((diphenylphospino)methyl)-2-methyl-1,3-propanediyl]bis[diphenylphosphine] 
• 124223-20-7 [(CH₃C(CH₂PPh₂)3)Rh(CO)(H)] 
• 100-44-7 benzyl chloride 

Downstream Products

• 62792-06-7 fac-RhCl₃(tripod) 
• 121374-11-6 RhHCl₂(triphos) 
• 110544-58-6 Rh(MeCO)(CO)(triphos) 
• 124223-20-7 [(CH₃C(CH₂PPh₂)3)Rh(CO)(H)] 
• 75-07-0 acetaldehyde 
• 121393-29-1 {Rh(CO)(t-BuNC)(triphos)}PF₆ 
• 121373-94-2 {Rh(CO){P(OMe)3}(triphos)}PF₆ 
• 34397-70-1 Rh⁽³⁺⁾*((C₆H₅)2PCH₂)3CCH₃*Cl^(1-)*CO₃^(2-)=Rh(((C₆H₅)2PCH₂)3CCH₃)Cl(CO₃) 
• 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 

Relevant articles and documents

Coupling of two ethyne molecules at rhodium versus coupling of two rhodium atoms at ethyne. 2. Implications for the reactivity. Catalytic and stoichiometric functionalization reactions of ethyne

The rhodacyclopentadiene complex [(triphos)RhCl(η2-C4H4)] (3) has been synthesized by treatment of [(triphos)RhCl(C2H4)] (1) in CH2Cl2 with an excess of ethyne (triphos = MeC(CH2PPh2)3). Complex 3 catalyzes under very mild conditions the cyclotrimerization of ethyne to benzene as well as the cyclocooligomerization of ethyne with acetonitrile to 2-picoline. A plausible catalysis cycle for both reactions is proposed on the basis of multiform experimental evidence. Complex 3 is a potential synthon for the preparation of a variety of heterocyclic compounds containing the C4H4 diene moiety. As an example, 3 reacts with dimethyl acetylenedicarboxylate, carbon disulfide, and cyclo-octasulfur, producing dimethyl phthalate, dithiopyrone, and thiophene, respectively. Carbon monoxide reacts with 3 in the presence of TlPF6, yielding [(triphos)Rh(η4-C4H4CO)]PF6 (10), which contains an unsubstituted cyclopentadienone ligand. By treatment with H2, 3 transforms into the η4-butadiene derivative [(triphos)Rh(η4-C4H6)]BPh4 (13). The chemistry of 3 has been compared to and contrasted with that of the related perpendicular μ-C2H2 complex [(triphos)Rh(μ-Cl)(μ-η2,η2-C 2H2)Rh(triphos)]Cl (2). From this study it is concluded that coupling of two or more metal centers at acetylene may lead to inactive complexes for catalytic transformations of acetylene.

SOME RHODIUM(I) AND RHODIUM(III) COMPLEXES WITH THE TRIPOD-LIKE LIGANDS RC(CH2PPh2)3 (R=Me: triphos; R=Et: triphos-I) AND THE X-RAY CRYSTAL STRUCTURE OF

The syntheses of (8, triphos=CH3C(CH2PPh2)3) and the related compound (triphos-I=EtC(CH2PPh2)3) are described, and the X-ray crystal structure of the latter is reported.The crystals are monoclinic space group P21/a, a 15.985(6), b 19.683(7), c 11.900(4) Angstroem, β 103,73(6) degree, Z=4.The structure was solved by the heavy atom method and refined by full-matrix leastsquares to the conventional R factor value of 0.057 for 2649 observed reflections.The metal atom is octahedrally coordinated by three phophorus atoms and by three hydrogen atoms, each trans to one phosphorus.Complex 8 has been shown to react with CO to give (2).Compound 2 reacts with CH2=CHCO2Me to give only the branched insertion product .The complex has been re-investigated and was obtained in a single isomeric form which has been assigned a five-coordinate structure.The five-coordinate compounds (X=Br and I) are also described.