Tris(t-butoxy)(2,2-dimethylpropylidyne)tungsten(VI)

Base Information

• Chemical Name: Tris(t-butoxy)(2,2-dimethylpropylidyne)tungsten(VI)
• CAS No.: 78234-36-3
• Molecular Formula: C17H36 O3 W
• Molecular Weight: 472.321
• Hs Code.: 2909199090
• European Community (EC) Number: 813-213-6
• Mol file: 78234-36-3.mol

Synonyms:78234-36-3;Tris(t-butoxy)(2,2-dimethylpropylidyne)tungsten(VI);Tris(t-butoxy)(2,2-dimethylpropylidyne)tungsten(VI), 98% Schrock Alkyne Metathesis Catalyst;MFCD06798309;SCHEMBL12080559;CS-0111854;2,2-dimethylpropylidynetungsten;2-methylpropan-2-ol

Chemical Property of Tris(t-butoxy)(2,2-dimethylpropylidyne)tungsten(VI)

Chemical Property:

• PSA: 27.69000
• LogP: 5.33840
• Sensitive.: air sensitive, moisture sensitiv
• Hydrogen Bond Donor Count: 3
• Hydrogen Bond Acceptor Count: 3
• Rotatable Bond Count: 1
• Exact Mass: 475.240853
• Heavy Atom Count: 21
• Complexity: 246

Purity/Quality:

98% ^*data from raw suppliers

Tris(t-butoxy)(2,2-dimethylpropylidyne)tungsten(VI), 98% Schrock Alkyne Metathesis Catalyst ^*data from reagent suppliers

Safty Information:

• Statements: 36/37/38
• Safety Statements: 26-36/37/39

MSDS Files:

SDS file from LookChem

Useful:

• Canonical SMILES: CC(C)(C)C#[W].CC(C)(C)O.CC(C)(C)O.CC(C)(C)O

Technology Process of Tris(t-butoxy)(2,2-dimethylpropylidyne)tungsten(VI)

There total 6 articles about Tris(t-butoxy)(2,2-dimethylpropylidyne)tungsten(VI) which guide to synthetic route it. The literature collected by LookChem mainly comes from the sharing of users and the free literature resources found by Internet computing technology. We keep the original model of the professional version of literature to make it easier and faster for users to retrieve and use. At the same time, we analyze and calculate the most feasible synthesis route with the highest yield for your reference as below:

synthetic route:

Reference yield:

ditungsten hexa-tert-butoxide (57125-20-9) + 2,2-dimethylpropylidynephosphine (78129-68-7) → tris(2-methyl-2-propoxy)(2,2-dimethylpropylidyne)tungsten(VI) (78234-36-3) + [(t-BuO)3W.tplbond.P] + ((CH3)3CO)2W(CC(CH3)3)PP(OC(CH3)3) + ((CH3)3CO)2W(CC(CH3)3)2P(OC(CH3)3)

Guidance literature:

In tetrahydrofuran; Ar-atmosphere; dropwise addn. of 1 equiv. phosphaalkyne to W-complex at -21°C (over 4 h), warming to 0°C; solvent removal (0.001 Torr, 0°C), sublimation off of phosphaalkyne complex (50°C, 0.001 Torr); product mixt. not sepd., detd. by NMR spectroscopy; elem. anal.;

DOI:10.1021/om990019e

Reference yield:

ditungsten hexa-tert-butoxide (57125-20-9) + (η(5)-1,3-(t)Bu2C5H3)Mn(CO)2(THF) (240807-49-2) + 2,2-dimethylpropylidynephosphine (78129-68-7) → tris(2-methyl-2-propoxy)(2,2-dimethylpropylidyne)tungsten(VI) (78234-36-3) + ((CH3)3CO)2W(CC(CH3)3)2P(OC(CH3)3) + ((CH3)3CO)3WPMn(CO)2(C5H3(C(CH3)3)2) + ((CH3)3CO)2W(CC(CH3)3)P(Mn(CO)2(C5H3(C(CH3)3)2))P(OC(CH3)3)

Guidance literature:

In tetrahydrofuran; byproducts: (C5H3-t-Bu-1,3)Mn(CO)3; Ar-atmosphere; equimolar amts.; dropwise addn. of phosphaalkyne to mixt.of metal complexes (-21°C, during 4 h), warming to 0°C; solvent removal (0.001 Torr), sublimation off of (t-BuO)3WCt-Bu and Cp''Mn(CO)3 (50°C, 0.001 Torr), dissoln. in pentane, filtration, vol.reduction (vac.), crystn.; elem. anal.;

DOI:10.1021/om990019e

Reference yield:

pentacarbonyl(tetrahydrofuran)chromium(0) (15038-41-2) + ditungsten hexa-tert-butoxide (57125-20-9) + 2,2-dimethylpropylidynephosphine (78129-68-7) → tris(2-methyl-2-propoxy)(2,2-dimethylpropylidyne)tungsten(VI) (78234-36-3) + ((CH3)3CO)3WPCr(CO)5 + ((CH3)3CO)2W(CC(CH3)3)2P(OC(CH3)3) + ((CH3)3CO)2W(CC(CH3)3)P(Cr(CO)5)P(OC(CH3)3)

Guidance literature:

In tetrahydrofuran; byproducts: Cr(CO)6; Ar-atmosphere; equimolar amts.; dropwise addn. of phosphaalkyne to mixt.of metal complexes (-21°C, during 4 h), warming to 0°C; solvent removal (0.001 Torr), sublimation off of (t-BuO)3WCt-Bu and Cr(CO)6 (50°C, 0.001 Torr), dissoln. in pentane, filtration, vol. reduction (vac.), crystn.; elem. anal.;

DOI:10.1021/om990019e

upstream raw materials:

pentacarbonyl(tetrahydrofuran)chromium⁽⁰⁾

ditungsten hexa-tert-butoxide

2,2-dimethylpropylidynephosphine

tungsten pentacarbonyl tetrahydrofuran

Downstream raw materials:

(C₆H₅CH₂)3WCC(CH₃)3

W(CPh)(OCMe₃)3

W(CHC(CH₃)3)(OC(CH₃)3)2(O₂CC₆H₅)2

W(CHC(CH₃)3)(OC(CH₃)3)2(OC₆H₅)2