Tris(trimethylsiloxy)antimony

Base Information

• Chemical Name: Tris(trimethylsiloxy)antimony
• CAS No.: 194033-87-9
• Molecular Formula: C₉H₂₇O₃SbSi₃
• Molecular Weight: 389.318
• DSSTox Substance ID: DTXSID901102985
• Mol file: 194033-87-9.mol

Synonyms:194033-87-9;ANTIMONY TRIMETHYLSILOXIDE;TRIS(TRIMETHYLSILOXY)ANTIMONY;tris(trimethylsilyl) stiborite;3,5-Dioxa-4-stiba-2,6-disilaheptane,2,2,6,6-tetramethyl-4-[(trimethylsilyl)oxy]-;tris(trimethylsilyl) antimonite;SCHEMBL5448960;DTXSID901102985

Chemical Property of Tris(trimethylsiloxy)antimony

Chemical Property:

• Refractive Index: 1.4374
• Boiling Point: 80°C/3mmHg
• PSA: 27.69000
• Density: 1,1448 g/cm3
• LogP: 3.90660
• Hydrogen Bond Donor Count: 0
• Hydrogen Bond Acceptor Count: 3
• Rotatable Bond Count: 6
• Exact Mass: 388.03061
• Heavy Atom Count: 16
• Complexity: 180

Purity/Quality:

99% ^*data from raw suppliers

Safty Information:

• Pictogram(s):  
• Hazard Codes: 

MSDS Files:

SDS file from LookChem

Useful:

• Canonical SMILES: C[Si](C)(C)O[Sb](O[Si](C)(C)C)O[Si](C)(C)C

Technology Process of Tris(trimethylsiloxy)antimony

There total 5 articles about Tris(trimethylsiloxy)antimony 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: 69.0%

antimony(III) trioxide + chloro-trimethyl-silane (75-77-4) → antimony chloride + antimony(III) chloride (10025-91-9) + tris{(trimethylsilyl)oxy}antimony(III) (194033-87-9)

Guidance literature:

In neat (no solvent); byproducts: hexamethyldisilixane; mixture of Sb2O3 and trimethylchlorosilane was stirred at room temp. for1 h; precipitate was filtered off, residue distilled iv vac.;

DOI:10.1134/S1070363208080306

Reference yield: 64.5%

antimony(III) chloride (10025-91-9) + lithium trimethylsilanolate (2004-14-0) → tris{(trimethylsilyl)oxy}antimony(III) (194033-87-9)

Guidance literature:

In diethyl ether; N2; stirring at romm temperature for 2 h;; filtration; solvent evapn.; fractional distillation;;

Reference yield:

phenylbis(trimethylsilyl)stibane (82363-95-9) → Diphenylstibino-trimethylsiloxan (17938-52-2) + tris{(trimethylsilyl)oxy}antimony(III) (194033-87-9)

Guidance literature:

With air; In pentane; stirring for 4 h on air;; filtering off solid, evapg. solvent; distn. of residue yields ((CH3)3SiO)3Sb at 38°C (0.01 torr) and (C6H5)2Sb(OSi(CH3)3) at 100°C;;

upstream raw materials:

phenylbis(trimethylsilyl)stibane

tris(trimethylsilyl)antimony

antimony(III) chloride

lithium trimethylsilanolate