51406-11-2

Upstream product

• 166989-37-3 (CH₃C(CH₂P(C₆H₅)2)3)Re(CO)2⁽¹⁺⁾*BF₄^(1-)=[(CH₃C(CH₂P(C₆H₅)2)3)Re(CO)2]BF₄ 
• 21050-13-5 bis(triphenylphosphine)iminium chloride 
• 14099-01-5 rhenium(I) pentacarbonyl chloride 
• 22031-12-5 [2-((diphenylphospino)methyl)-2-methyl-1,3-propanediyl]bis[diphenylphosphine] 
• 166989-33-9 (CH₃C(CH₂P(C₆H₅)2)3)Re(CO)2(H) 
• 25246-23-5 mer-tricarbonyl-chloro-bis(triphenylphosphine)rhenium 
• 309718-35-2 fac,boat-Re(CO)3(η2-1,1,1-tris(diphenylphosphino)ethane)Cl 
• 106373-93-7 fac,chair-Re(CO)3(η2-1,1,1-tris(diphenylphosphino)ethane)Cl 

Downstream Products

• 222402-52-0 [Re(1,1,1-tris(diphenylphosphanylmethyl)ethane)(CO)2]triflate 
• 166989-43-1 (CH₃C(CH₂P(C₆H₅)2)3)Re(CO)2(CC(H)C₆H₅)⁽¹⁺⁾*B(C₆H₅)4^(1-)=[(CH₃C(CH₂P(C₆H₅)2)3)Re(CO)2(CC(H)C₆H₅)][B(C₆H₅)4] 
• 166989-45-3 (CH₃C(CH₂P(C₆H₅)2)3)Re(CO)2(CC(H)COOC₂H₅)⁽¹⁺⁾*B(C₆H₅)4^(1-)=[(CH₃C(CH₂P(C₆H₅)2)3)Re(CO)2(CC(H)COOC₂H₅)][B(C₆H₅)4] 
• 166989-47-5 (CH₃C(CH₂P(C₆H₅)2)3)Re(CO)2(CC(H)C₆H₁₃)⁽¹⁺⁾*B(C₆H₅)4^(1-)=[(CH₃C(CH₂P(C₆H₅)2)3)Re(CO)2(CC(H)C₆H₁₃)][B(C₆H₅)4] 
• 166989-41-9 (CH₃C(CH₂P(C₆H₅)2)3)Re(CO)3⁽¹⁺⁾*BF₄^(1-)=[(CH₃C(CH₂P(C₆H₅)2)3)Re(CO)3]BF₄ 
• 166989-37-3 (CH₃C(CH₂P(C₆H₅)2)3)Re(CO)2⁽¹⁺⁾*BF₄^(1-)=[(CH₃C(CH₂P(C₆H₅)2)3)Re(CO)2]BF₄ 
• 166989-40-8 (CH₃C(CH₂P(C₆H₅)2)3)Re(CO)2(CH₃CN)⁽¹⁺⁾*B(C₆H₅)4^(1-)=[(CH₃C(CH₂P(C₆H₅)2)3)Re(CO)2(CH₃CN)][B(C₆H₅)4] 
• 222402-73-5 Re(CH₃C(CH₂P(C₆H₅)2)3)(CO)2SeCNCH₃⁽¹⁺⁾*CF₃SO₃^(1-) = [Re(CH₃C(CH₂P(C₆H₅)2)3)(CO)2SeCNCH₃]CF₃SO₃ 
• 222402-71-3 Re(CH₃C(CH₂P(C₆H₅)2)3)(CO)2SCNCH₃⁽¹⁺⁾*CF₃SO₃^(1-) = [Re(CH₃C(CH₂P(C₆H₅)2)3)(CO)2SCNCH₃]CF₃SO₃ 
• 222402-69-9 Re(CH₃C(CH₂P(C₆H₅)2)3)(CO)2CNCH₃⁽¹⁺⁾*CF₃SO₃^(1-) = [Re(CH₃C(CH₂P(C₆H₅)2)3)(CO)2CNCH₃]CF₃SO₃ 
• 222402-62-2 Re(CH₃C(CH₂P(C₆H₅)2)3)(CO)2NCSe 
• 222402-62-2 Re(CH₃C(CH₂P(C₆H₅)2)3)(CO)2SeCN 
• 222402-55-3 ReCN(CH₃C(CH₂P(C₆H₅)2)3)(CO)2 
• 222402-58-6 ReN₃(CH₃C(CH₂P(C₆H₅)2)3)(CO)2 

Relevant academic research and scientific papers

Rhenium(I)-Catalyzed C-Methylation of Ketones, Indoles, and Arylacetonitriles Using Methanol

A ReCl(CO)5/MeC(CH2PPh2)3 (L2) system was developed for the C-methylation reactions utilizing methanol and base, following the borrowing hydrogen strategy. Diverse ketones, indoles, and arylacetonitriles underwent mono-and dimethylation selectively up to 99% yield. Remarkably, tandem multiple methylations were also achieved by employing this catalytic system.

Synthesis and characterization of chair and boat forms of fac-Re(CO)3(P3)(X) [P3 = η2-CH3C(CH2PPh2)3, X = Br, Cl]

The syntheses of complexes having the general formula fac-Re(CO)3(η2-triphos)X (triphos = 1,1,1-tris(diphenylphosphinomethyl)ethane; 1 and 2, X = Br; 5 and 6, X = Cl) from reactions of Re(CO)5X and triphos are described. The X-ray structure of 1 shows that the six-membered metallacyclic ring (ReP2C3) adopts a chair conformation like the known complex 5, while structural data for 2 and 6 indicate boat forms for the metallacyclic rings. This represents the first identification of boat forms of these complexes. The pendant phosphines in compounds 1 and 2 can be oxidized, yielding compounds 3 and 4, respectively. The X-ray structure of 4 retains the boat form of its precursor and the properties of 3 are different, suggesting that the ring conformation was retained here also. Thermolysis reactions of 5 and 6 were conducted to probe for differences in the ease of decarbonylation and conversion to the known η3-coordinated complex, 7. The boat complex 6 is converted more readily to 7; there is no evidence for any thermal conversion of 6 to 5.

Reactions of the rhenium(I) fragment [{MeC(CH2PPh2)3}Re(CO)2] +. Synthesis and characterization of a stable cationic η2-H2 complex of rhenium

Reaction of Re(CO)3(PPh3)2Cl with MeC(CH2PPh2)3 (triphos) gives (triphos)Re(CO)2Cl (1) which is converted to the hydride (triphos)Re(CO)2H (2) by treatment with LiAlH4. An X-ray diffraction analysis of 2 shows that the rhenium atom is octahedrally coordinated by triphos, which occupies a triangular face of the coordination polyhedron, by two carbonyl groups and by a terminal hydride ligand. Treatment of 2 with Me3OBF4 results in the evolution of methane and formation of the unsaturated complex [(triphos)Re(CO)2]BF4 (4) which is stabilized by an agostic interaction between the rhenium center and a phenyl C-H bond of triphos. The η2-H2 complex [(triphos)Re(CO)2(H2)]BF4 (3) is obtained either by protonation of 2 or by addition of H2 to the agostic complex 4. The presence of an intact dihydrogen ligand in 3 is unambiguosly shown by 1H NMR spectroscopy [Tlmin = 8.6 ms (CD2Cl2, 300 MHz, -58°C); JHD of 30.8 Hz for the monodeuteriated isotopomer [(triphos)Re(CO)2(HD)]-BF4 (3-d1)]. Vinylidene derivatives of the formula [(triphos)Re(CO)2({C=C(H)R}]BPh4 (R = Ph, 8; CO2Et, 9; C6H13, 10) are obtained by reaction of either the η2-H2 complex 3 or the agostic complex 4 with terminal alkynes in the presence of NaBPh4. The preference for the coordination of neutral groups at rhenium in the [(triphos)Re(CO)2]+ fragment follows the order N2 (agostic) 2 3CN CO. All the reactions described have been carried out in tetrahydrofuran or dichloromethane.