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Usage

Uses

Used in Organic Synthesis:
[1,2-bis(diphenylphosphino)ethane]molybdenum tetracarbonyl is used as a catalyst in the field of organic synthesis for its ability to facilitate various chemical transformations. It plays a crucial role in the catalytic reduction of carbonyl compounds, which is essential for the production of numerous pharmaceuticals and fine chemicals.
Used in Alkene Metathesis:
In the chemical industry, [1,2-bis(diphenylphosphino)ethane]molybdenum tetracarbonyl is used as a catalyst for alkene metathesis, a reaction that involves the redistribution of carbon-carbon double bonds. This process is vital for the synthesis of complex organic molecules and polymers.
Used in Carbon-Carbon Bond Forming Reactions:
This molybdenum complex is also utilized as a catalyst in carbon-carbon bond forming reactions, which are fundamental in constructing the molecular frameworks of various organic compounds, including those with potential applications in materials science and pharmaceuticals.
Used in Ligand Exchange Reactions:
The ability of [1,2-bis(diphenylphosphino)ethane]molybdenum tetracarbonyl to undergo ligand exchange reactions allows for the fine-tuning of its catalytic properties. This feature is particularly useful in the development of new catalysts tailored for specific applications in the chemical and pharmaceutical industries.

Upstream product

• 12146-37-1 (bicyclo[2.2.1]hepta-2,5-diene)tetracarbonylmolybdenum⁽⁰⁾ 
• 1663-45-2 1,2-bis-(diphenylphosphino)ethane 
• 13939-06-5 molybdenum hexacarbonyl 
• 2155-96-6 Diphenylvinylphosphine 
• 119578-37-9 bis(pyrazolyl)methanetetracarbonyl-molybdenum⁽⁰⁾ 
• 591-50-4 iodobenzene 
• 29139-30-8 benzylaminepentacarbonylmolybdenum 
• 2637-34-5 2-Sulfanylpyridine 
• 15038-48-9 tris(acetonitrile)tricarbonylmolybdenum⁽⁰⁾ 
• 10241-05-1 molybdenum(V) chloride 
• 70568-71-7 cis-Mo(CO)4(PPh₂H)(PPh₂CHCH₂) 

Downstream Products

• 119638-27-6 fac-Mo(CO)3(Ph₂PCH₂CH₂PPh₂)(2,3-dihydrothiophene) 
• 97202-27-2 fac-{Mo(CO)3(PF₃)(dppe)} 
• 97202-30-7 fac-{(P(OMe)3)-1,2-bis(diphenylphosphino)ethane}Mo(CO)3 
• 179235-21-3 mer-[Mo(CO)3(NO)(1,2-bis(diphenylphosphino)ethane)]BF₄ 
• 204996-19-0 Mo(CO)3((Ph2PCH2)2)(η(2)-C70) 
• 84430-59-1 Mo(CO)3(C₆H₅)2PCH₂CH₂P(C₆H₅)2(CH₃)2CO 
• 82630-11-3 mer-tricarbonyl-bis(diphenylphosphino)ethane-η1-sulfur dioxide-molybdenum 
• 155977-24-5 fac-{molybdenum(1,2-bis(diphenylphosphino)ethane)(tricarbonyl)(2-methoxy-1,3-dimethyl-1,3,2-diazaphospholane-2-yl)} 
• 131078-89-2 (CO)4(Ph₂PCH₂CH₂PPh₂)molybdenum-hydrido-triphenylstannyl complex 
• 131078-94-9 (CO)4(Ph₂PCH₂CH₂PPh₂)molybdenum-hydrido-trimethylstannyl complex 
• 19349-53-2 fac-[Mo(CO)3(MeCN)(1,2-bis(diphenylphosphino)ethane)] 
• 19349-54-3 Mo(CO)3(C₂₆H₂₄P₂){Sb(C₆H₅)3} 
• 19349-54-3 fac-{(SbPh₃)-1,2-bis(diphenylphosphino)ethane}Mo(CO)3 
• 115940-59-5 fac-{(PPh₃)-1,2-bis(diphenylphosphino)ethane}Mo(CO)3 

Relevant academic research and scientific papers

Bis(pyrazolyl)methanetetracarbonyl-chromium(0), -molybdenum(0) and -tungsten(0)

Bis(pyrazolyl)methanetetracarbonyl-chromium(0), -molybdenum(0) and -tungsten(0) were prepared from M(CO)6 and characterized by IR, 1H and 13C NMR spectroscopy.They are of only moderate stability as solid or in solution, being more stable in acetone than i

Synthesis, structure and bonding of new mono- and dinuclear molybdenum complexes containing pyridine-2-thiolate (pyS) and different P-donors

Three new molybdenum complexes have been synthesized from one-pot reactions between Mo(CO)3(NCMe)3 and pyridine-2-thiol (pySH) in the presence of different P-donors. Reaction with P(OMe)3 in MeCN at ca. 55 °C gives Mo(CO)

2,3-benzo-7-phosphanorbornadiene complexes: Synthesis and chemistry

The reaction of benzyne with 3,4-dimethylphosphole pentacarbonylmolybdenum complexes affords the corresponding 2,3-benzo-7-phosphanorbornadiene complexes through [4+2] cycloaddition. The condensation takes place on the less hindered side of the phosphole ring corresponding to the phosphorus substituent as shown by the X-ray crystal structure analysis of the phenyl derivative (2). The strain at the bridge of 2 (C-P-C angle ca. 80°) induces a variety of splitting reactions. Upon decomplexation by dppe at 110°C in toluene, phenylphosphinidene is generated and recovered as phenylphosphine. Upon sulfurization under the same conditions, [PhPS2] is formed and trapped as a [4+2] adduct with 2,3-dimethylbutadiene. Potassium tertbutylate attacks the bridge in THF at - 78°C and, after methylation and hydrolytic workup, yields [Ph(Me)P-(OH)Mo(CO)5].

Photochemical Unmasking of 1,3-Dithiol-2-ones: An Alternative Route to Heteroleptic Dithiolene Complexes from Low-Valent Molybdenum and Tungsten Precursors

Mono-dithiolene complexes [Mo(CO)2(dt)(dppe)] and [W(CO)2(dt)(dppe)] {dt = cyclohex-1-ene-1,2-dithiol; 5,6-dihydro-2H-pyran-3,4-dithiol and dppe= 1,2-bis(diphenylphosphino)ethane} were synthesized by a photochemical procedure. The typical basic de-protection of the dithiolene ligand precursor was replaced by a light-induced opening of the 1,2-dithiole-2-one moiety. Advantages of this targeted approach comprise higher yields, cleaner transformations, and the possibility to continuously and precisely monitor the reaction progress. The light induced pericyclic reaction of the protection group releases carbon monoxide with formation of a 1,2-dithione, which is capable of oxidizing the electron rich metal precursor due to its non-innocence character. This procedure works well with molybdenum(0) and tungsten(0) precursors and particularly well with dithiolene ligands bearing aliphatic backbones, which are typically and notoriously difficult to handle when applying strictly chemical procedures.

Microwave-assisted synthesis of group 6 (Cr, Mo, W) zerovalent organometallic carbonyl compounds

The microwave-assisted synthesis of a series of compounds of the form ML(CO)4 (M = Cr, Mo, W; L = en, bipy, dppm, dppe), results in the reduction of reaction times and an increase in yields over previously published syntheses. Reaction times are reduced by a factor of 5 to over 500.

Rapid synthesis of Group VI carbonyl complexes by coupling borohydride catalysis and microwave heating

Several Group VI tetracarbonyl phosphine and tertiary amine complexes [M(CO)4 L2, M = Cr, Mo, W, L2 = 2PPh 3, dppm, dppe, dppp, dppb, bpy, phen, dppf] were synthesized in minutes in the microwave at moderate temperature, atmospheric pressure, and utilizing NaBH4 as a catalyst. The reactions were optimized by careful solvent selection. The octahedral complexes were isolated in percent yields ranging from 17 to 95. The lower temperatures, shorter reaction times, benign solvents, and lower pressures as compared to the traditional thermal syntheses provide a rapid, eco-friendly synthetic route to these common Group VI complexes.

Ligand electronic effect on reductive elimination of biphenyl from ci s-[Pt(Ph)2(diphosphine)] complexes bearing electron-poor diphosphine: Correlation study between experimental and theoretical results

The reductive elimination of biphenyl from cis-[Pt(Ph) 2(diphosphine)] (3) was studied to clarify the electronic effects of diphosphine ligands on the reaction. Reaction kinetic data were evaluated in d8-toluene within 80-110 °C usin

Carbamoylation of aryl halides by molybdenum or tungsten carbonyl amine complexes

When aryl halide is treated with molybdenum carbonyl amine complex in the presence of base, carbamoylation proceeds to give amide in good yield. The proposed mechanism involves oxidative addition of aryl halide to molybdenum(0) complex, migratory insertio

Organometallic chemistry in a conventional microwave oven: The facile synthesis of group 6 carbonyl complexes

Syntheses proceeding by reflux may be improved, accelerated and simplified, by carrying out the reaction in a modified conventional microwave oven. To demonstrate the potential of this method, the synthesis of over 20 group 6 organometallic compounds is reported. Hexacarbonyls, most notably Mo(CO)6, react with a range of mono, and bi, and tridentate ligands in a modified conventional microwave oven. They generally proceed without an inert atmosphere, yields are high and reaction times are short. For example, cis -[Mo(CO)4(dppe)] is prepared in >95% yield in 20 min. Reaction of Mo(CO)6 with dicyclopentadiene affords a simple one-step synthesis of [CpMo(CO)3]2 in >90% yield, which reacts further with alkynes in toluene to produce dimetallatetrahedrane derivatives, [Cp2Mo2(CO)4 (μ-RC2R)]; presumably via the in situ formation of air-sensitive [CpMo(CO)2]2. Dimolybdenum tetra-acetate is also prepared in 48% yield in 45 min, however, this reaction requires an inert atmosphere. While W(CO)6 reacts rapidly with amines to give cis diamine adducts in high yields, direct reactions with phosphines are not so clean. Bis(phosphine) complexes are, however, cleanly formed when a small amount of piperidine is added to the reaction mixture, presumably via the bis(piperidine) complex cis-[W(CO)4(pip)2]. Reactions with Cr(CO)6 generally require an inert atmosphere and proceed less cleanly, although the important synthon [Cr(CO)5 Cl][NEt4] was prepared in 30 min (74% yield), while [(η6-C6H5OMe)Cr(CO)3] can be prepared in 45% after 4 h.

Ligand substitution kinetics in M(CO)4(η2:2-norbornadiene) complexes (M=Cr, Mo, W): Displacement of norbornadiene by bis(diphenylphosphino)alkanes

The thermal substitution kinetics of norbornadiene (NBD) by bis(diphenylphosphino)alkanes (PP), (C6H5)2P(CH2)nP(C 6H5)2 (n=1, 2, 3) in M(CO)4(η2:2-NBD) complexes (M=Cr, Mo, W), were studied by quantitative FT-IR spectroscopy. The reaction rate exhibits first-order dependence on the concentration of the starting complex, and the observed rate constant depends on the concentration of the leaving NBD ligand and on the concentration and the nature of the entering PP ligand. In the proposed mechanism there are two competing initial steps: an associative reaction involving the attachment of the entering PP ligand to the transition metal center and a dissociative reaction involving the stepwise detachment of the diolefin ligand from the transition metal center. A rate law is derived from the proposed mechanism. The activation parameters are obtained from the evaluation of the kinetic data. It is found that at higher concentrations of the entering ligand, the associative path is dominant, while at lower concentrations the contribution of the dissociative path becomes significant. Both the observed rate constant and the activation parameters show noticeable variation with the chain length of the diphosphine ligand.