bis[(2,6-diisopropylphenyl)(trimethylsilyl)amido]hafnium dichloride

Base Information

• Chemical Name: bis[(2,6-diisopropylphenyl)(trimethylsilyl)amido]hafnium dichloride
• CAS No.: 178176-68-6
• Molecular Formula: C₃₀H₅₂Cl₂HfN₂Si₂
• Molecular Weight: 746.323
• Mol file: 178176-68-6.mol

Synonyms:

Chemical Property of bis[(2,6-diisopropylphenyl)(trimethylsilyl)amido]hafnium dichloride

Chemical Property:

Purity/Quality:

Safty Information:

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MSDS Files:

Useful:

Technology Process of bis[(2,6-diisopropylphenyl)(trimethylsilyl)amido]hafnium dichloride

There total 2 articles about bis[(2,6-diisopropylphenyl)(trimethylsilyl)amido]hafnium dichloride 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: 59.0%

hafnium tetrachloride (13499-05-3) + lithium (2,6-diisopropylphenyl)(trimethylsilyl)amide (134208-71-2) → bis[(2,6-diisopropylphenyl)(trimethylsilyl)amido]hafnium dichloride (178176-68-6)

Guidance literature:

In diethyl ether; byproducts: LiCl; N2-atmosphere; 2 equivs. of amide, mixing at 0°C, stirring for 36h; evapn., addn. of hexane, filtration off of LiCl, concn., crystn. on standing at -25°C; elem. anal.;

DOI:10.1021/om960177v

Reference yield: 59.0%

tetrachlorobis(tetrahydrofuran)hafnium(IV) (21959-05-7,128240-92-6,73365-24-9) + lithium (2,6-diisopropylphenyl)(trimethylsilyl)amide (134208-71-2) → bis[(2,6-diisopropylphenyl)(trimethylsilyl)amido]hafnium dichloride (178176-68-6)

Guidance literature:

In diethyl ether; byproducts: LiCl; N2-atmosphere; 2 equivs. of amide, mixing at 0°C, stirring for 36h; evapn., addn. of hexane, filtration off of LiCl, concn., crystn. on standing at -25°C;

DOI:10.1021/om960177v

Reference yield: 91.0%

bis[(2,6-diisopropylphenyl)(trimethylsilyl)amido]hafnium dichloride (178176-68-6) + methylmagnesium bromide (75-16-1) → [Hf(CH3)2(N(Si(CH3)3)C6H3(C3H7)2)2]

Guidance literature:

In diethyl ether; byproducts: MgBrCl; (N2); addn. of MeMgBr in Et2O at 0°C to the Hf compd. in Et2O, stirring (room temp., 36 h); solvent removal (reduced pressure), addn. of hexane, filtration, concn.,standing (-25°C, overnight); elem. anal.;

DOI:10.1039/DT9960004143

upstream raw materials:

hafnium tetrachloride

lithium (2,6-diisopropylphenyl)(trimethylsilyl)amide

tetrachlorobis(tetrahydrofuran)hafnium(IV)

Downstream raw materials:

bis[(2,6-diisopropylphenyl)(trimethylsilyl)amido]hafnium difluoride

[HfClF(N(Si(CH₃)3)C₆H₃(C₃H₇)2)2]

Refernces