Ethynyltriethoxysilane

Base Information

• Chemical Name: Ethynyltriethoxysilane
• CAS No.: 5700-28-7
• Molecular Formula: C8H16 O3 Si
• Molecular Weight: 188.299
• European Community (EC) Number: 227-184-7
• DSSTox Substance ID: DTXSID6063981
• Nikkaji Number: J225.103E
• Wikidata: Q81991145
• Mol file: 5700-28-7.mol

Synonyms:Ethynyltriethoxysilane;triethoxy(ethynyl)silane;5700-28-7;Triethoxyethynylsilane;Silane, triethoxyethynyl-;EINECS 227-184-7;acetyltriethoxysilane;triethoxysilylacetylene;Acetyleneorthosiliconic Acid Triethyl Ester;SCHEMBL1532592;DTXSID6063981;AKOS006271505;FT-0675463

Chemical Property of Ethynyltriethoxysilane

Chemical Property:

• Vapor Pressure: 2.81mmHg at 25°C
• Boiling Point: 162.6°Cat760mmHg
• Flash Point: 39.2°C
• PSA: 27.69000
• Density: 0.945g/cm³
• LogP: 1.20720
• Hydrogen Bond Donor Count: 0
• Hydrogen Bond Acceptor Count: 3
• Rotatable Bond Count: 7
• Exact Mass: 188.08687090
• Heavy Atom Count: 12
• Complexity: 144

Purity/Quality:

99% ^*data from raw suppliers

Triethoxyethynylsilane(~80%) ^*data from reagent suppliers

Safty Information:

• Pictogram(s):  
• Hazard Codes: 

MSDS Files:

SDS file from LookChem

Useful:

• Canonical SMILES: CCO[Si](C#C)(OCC)OCC
• Uses: ethynyltriethoxysilane is an organosiloxane used as a coupling agent in the reinforced thermoplastic polymers.

Technology Process of Ethynyltriethoxysilane

There total 5 articles about Ethynyltriethoxysilane 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: 80.0%

chlorotriethoxysilane (4667-99-6) + acetylenemagnesium bromide (4301-14-8) → triethoxyethynylsilane (5700-28-7)

Guidance literature:

In tetrahydrofuran; at -78 - 50 ℃; for 5h;

Reference yield: 50.0%

sodium acetylide (115570-70-2,1066-26-8) + chlorotriethoxysilane (4667-99-6) → triethoxyethynylsilane (5700-28-7)

Guidance literature:

In pyridine; below 15°C;;

Reference yield: 13.7%

dimethylethoxyethynylsilane (32957-37-2) → triethoxyethynylsilane (5700-28-7) + 1,3-diethynyltetramethyldisiloxane (4180-02-3) + (E)-1-(Ethoxy-dimethyl-silanyl)-2-[(E)-2-(ethoxy-dimethyl-silanyl)-vinylsulfanyl]-ethene + (E)-1-(Ethoxy-dimethyl-silanyl)-2-(1-(ethoxy-dimethyl-silanyl)-2-{2-(ethoxy-dimethyl-silanyl)-2-[(E)-2-(ethoxy-dimethyl-silanyl)-vinylsulfanyl]-ethylsulfanyl}-ethylsulfanyl)-ethene + diethoxyethynylmethylsilane (103084-89-5) + trimethylsilylacetylene (1066-54-2)

Guidance literature:

With hydrogen sulfide; for 4h; Product distribution; Irradiation; var. time, traces of HCl and H₂O;

upstream raw materials:

chlorotriethoxysilane

sodium acetylide

dimethylethoxyethynylsilane

sodium acetylide

Downstream raw materials:

acetylene

(E)-methyl 6-amino-2-(4-chloro-2-fluoro-3-methoxyphenyl)-5-(2-(triethoxysilyl)vinyl)pyrimidine-4-carboxylate

Refernces

• 1、 Voronkov, M. G.,Vlasova, N. N.,Shila, G. Yu.,Yarosh, O. G.,Brodskaya, E. I.,et al.. "PHOTOCHEMICAL ADDITION OF GASEOUS HYDROGEN SULFIDE TO ETHYNYLSILANES". . p. 773 - 777. Retrieved 2007/10/02.