Karstedt's catalyst

Base Information

• Chemical Name: Karstedt's catalyst
• CAS No.: 11057-89-9
• Molecular Formula: C₂₄H₅₄O₃Pt₂Si₆
• Molecular Weight: 949.364
• Mol file: 11057-89-9.mol

Synonyms:Karstedt's catalyst

Chemical Property of Karstedt's catalyst

Chemical Property:

Purity/Quality:

Safty Information:

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Technology Process of Karstedt's catalyst

There total 1 articles about Karstedt's catalyst 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:

cis-dichlorobis(η(2)styrene)platinum(II) (106862-48-0,59982-22-8,106862-50-4,70878-43-2,106862-49-1,344358-05-0) + tetramethyldivinyldisiloxane (2627-95-4) → Karstedt's catalyst (11057-89-9) + [Pt((CH2=CHSiMe2)2O)(η(2)-PhCH=CH2)] (166769-50-2) + Pt((CH2CHSi(CH3)2)2O)2 (166769-49-9)

Guidance literature:

In dichloromethane-d2; addn. of siloxane to soln. of Pt-complex; product ratio depends on Pt/siloxane ratio and temp., analyzed by NMR spectroscopy;

DOI:10.1016/0022-328X(94)05359-J

Reference yield: 98.0%

Karstedt's catalyst (11057-89-9) + 3-(1-mesityl-1H-imidazol-3-ium-3-yl)propane-1-sulfonate (913577-17-0) + dimethyl sulfoxide (67-68-5,8070-53-9) → [1-mesityl-3-(3-sodiumsulfonatopropyl)imidazol-2-ylidene](1,1,3,3-tetramethyl-1,3-divinyldisiloxane)platinum(0)*DMSO

Guidance literature:

With sodium tert-butoxide; In dimethyl sulfoxide; (Ar) soln. Pt complex in poly(dimethylsioloxane) and imidazolium salt were dissolved in DMSO at 0°C, t-BuONa was added, stirred at room temp. for 24 h; soln. was filtered, acetone was added, stirred overnight, ppt. was filtered, washed with acetone and dried in vacuo; elem. anal.;

DOI:10.1021/om300148q

Reference yield: 96.0%

sodium 1,3-bis(2,6-diisopropyl-4-sulfonatophenyl)imidazolium + Karstedt's catalyst (11057-89-9) + dimethyl sulfoxide (67-68-5,8070-53-9) → [1,3-bis(2,6-diisopropyl-4-sodiumsulfonatophenyl)imidazol-2-ylidene](1,1,3,3-tetramethyl-1,3-divinyldisiloxane)platinum(0)*2DMSO

Guidance literature:

With sodium tert-butoxide; In dimethyl sulfoxide; (Ar) soln. Pt complex in poly(dimethylsioloxane) and imidazolium salt were dissolved in DMSO at 0°C, t-BuONa was added, stirred at room temp. for 24 h; soln. was filtered, acetone was added, stirred overnight, ppt. was filtered, washed with acetone and dried in vacuo; elem. anal.;

DOI:10.1021/om300148q

upstream raw materials:

cis-dichlorobis(η(2)styrene)platinum(II)

tetramethyldivinyldisiloxane

Downstream raw materials:

Pt((η-CH2=CHSiMe2)2O)(P(cyclohexyl)3)

Pt((η-CH2=CHSiMe2)2O)(P(C6H4Me-p)3)

bis(tetramethyldivinyldisiloxane)(bis(diphenylphosphino)methane)diplatinum⁽⁰⁾

Pt((η-CH2=CHSiMe2)2O)(PPh2CH2C(t-Bu)2OH)