Silicic acid (H6Si2O7), hexaethyl ester

Base Information

• Chemical Name: Silicic acid (H6Si2O7), hexaethyl ester
• CAS No.: 2157-42-8
• Molecular Formula: C12H30O7Si2
• Molecular Weight: 342.537
• European Community (EC) Number: 218-469-7
• UNII: X39T6R27V3
• DSSTox Substance ID: DTXSID0062218
• Nikkaji Number: J342.552E
• Wikidata: Q81989914
• Mol file: 2157-42-8.mol

Synonyms:Hexaethoxydisiloxane;Silicic acid (H6Si2O7), hexaethyl ester;Hexaethyl diorthosilicate;2157-42-8;Silicic acid, hexaethyl ester;EINECS 218-469-7;triethyl triethoxysilyl silicate;hexaethoxy disiloxane;HEDS;Disiloxane, hexaethoxy-;Bis(triethoxysilyl) ether;Hexaethoxy-1,3-disiloxane;SCHEMBL182450;DTXSID0062218;X39T6R27V3;Triethyl triethoxysilyl orthosilicate #;P-750E20

Chemical Property of Silicic acid (H6Si2O7), hexaethyl ester

Chemical Property:

• Vapor Pressure: 0.00935mmHg at 25°C
• Boiling Point: 273.9°Cat760mmHg
• Flash Point: 105.1°C
• Density: 0.999g/cm³
• Hydrogen Bond Donor Count: 0
• Hydrogen Bond Acceptor Count: 7
• Rotatable Bond Count: 14
• Exact Mass: 342.15300636
• Heavy Atom Count: 21
• Complexity: 198

Purity/Quality:

99% ^*data from raw suppliers

Safty Information:

• Pictogram(s):  
• Hazard Codes: 

MSDS Files:

Useful:

• Canonical SMILES: CCO[Si](OCC)(OCC)O[Si](OCC)(OCC)OCC

Technology Process of Silicic acid (H6Si2O7), hexaethyl ester

There total 54 articles about Silicic acid (H6Si2O7), hexaethyl ester 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: 68.0%

1-hexene (592-41-6,25067-06-5) + Triethoxysilane (998-30-1) → tetraethoxy orthosilicate (78-10-4) + hexaethoxydisiloxane (2157-42-8) + trans-2-hexene (4050-45-7) + hexyltriethoxysilane (18166-37-5) + β-hexyltriethoxysilane (18166-36-4)

Guidance literature:

With tris(triphenylphosphine)ruthenium(II) chloride; for 5h; Product distribution; Mechanism; Heating; other catalysts; the atmosphere of air or argon;

DOI:10.1016/S0022-328X(00)99230-1

Reference yield: 63.0%

Triethoxysilane (998-30-1) + diphenyl acetylene (501-65-5) → tetraethoxy orthosilicate (78-10-4) + hexaethoxydisiloxane (2157-42-8) + triethoxy-[(E)-(1,2-diphenylvinyl)]silane (65119-10-0)

Guidance literature:

Triethoxysilane; diphenyl acetylene; With bis(acetylacetonate)nickel(II); In tetrahydrofuran; at 20 ℃; for 0.0166667h; Inert atmosphere;

With sodium triethylborohydride; In tetrahydrofuran; at 20 ℃; for 36h; Inert atmosphere;

DOI:10.1016/j.jorganchem.2016.02.025

Reference yield: 54.0%

oct-1-ene (111-66-0,25068-25-1) + Triethoxysilane (998-30-1) → tetraethoxy orthosilicate (78-10-4) + hexaethoxydisiloxane (2157-42-8) + triethoxy(octyl)silane (2943-75-1)

Guidance literature:

oct-1-ene; Triethoxysilane; With bis(acetylacetonate)nickel(II); sodium triethylborohydride; In tetrahydrofuran-d8; at 20 ℃; for 2h; Inert atmosphere;

In tetrahydrofuran-d8; at 50 ℃; for 14h; Inert atmosphere;

DOI:10.1016/j.jorganchem.2016.02.025

upstream raw materials:

pyridine

tetraethoxy orthosilicate

triethyl-bromo-silane

ethanol

Downstream raw materials:

hexavinyldisiloxane

tetraethoxy orthosilicate

chloroethane

Refernces

• 1、 Fukaya, Norihisa,Choi, Seong Jib,Horikoshi, Toshio,Kataoka, Sho,Endo, Akira,Kumai, Hiroshi,Hasegawa, Minoru,Sato, Kazuhiko,Choi, Jun-Chul. "Direct synthesis of tetraalkoxysilanes from silica and alcohols". . p. 2224 - 2226. Retrieved 2017.
• 2、 Putro, Wahyu S.,Ikeda, Akira,Shigeyasu, Shinji,Hamura, Satoshi,Matsumoto, Seiji,Lee, Vladimir Ya.,Choi, Jun-Chul,Fukaya, Norihisa. "Sustainable Catalytic Synthesis of Diethyl Carbonate". . p. 842 - 846. Retrieved 2020/12/07.
• 3、 Krylova,Egorov,Nefedov. "Reaction of silicon with alcohols in autoclave". . p. 260 - 266. Retrieved 2017/07/11.