Hexaethylcyclotrisiloxane

Base Information

• Chemical Name: Hexaethylcyclotrisiloxane
• CAS No.: 2031-79-0
• Molecular Formula: C12H30O3Si3
• Molecular Weight: 306.625
• European Community (EC) Number: 217-984-4
• UNII: ZIM94HF2YC
• DSSTox Substance ID: DTXSID8062109
• Nikkaji Number: J298.647G
• Wikidata: Q72481676
• Mol file: 2031-79-0.mol

Synonyms:Hexaethylcyclotrisiloxane;2031-79-0;Cyclotrisiloxane, hexaethyl-;2,2,4,4,6,6-Hexaethyl-1,3,5,2,4,6-trioxatrisilinane;1,1,3,3,5,5-Hexaethylcyclotrisiloxane;Hexaethyl cyclotrisiloxane;Cyclotrisiloxane, 2,2,4,4,6,6-hexaethyl-;BRN 1786263;EINECS 217-984-4;ZIM94HF2YC;Diethylcyclosiloxane;Hexaethylcyclohexanetrisiloxane;C12H30O3Si3;UNII-ZIM94HF2YC;SCHEMBL660658;DTXSID8062109;C12-H30-O3-Si3;MFCD00053566;AKOS015901472;AS-15264;LS-58862;hexaethyl-1,3,5,2,4,6-trioxatrisilinane;FT-0708132;F17220;2,2,4,4,6,6-HEXAETHYLCYCLOTRISILOXANE;2,2,4,4,6,6-Hexaethyl-1,3,5,2,4,6-trioxatrisilinane #

Chemical Property of Hexaethylcyclotrisiloxane

Chemical Property:

• Appearance/Colour: Colorless or yellowish transparent liquid
• Vapor Pressure: 0.0314mmHg at 25°C
• Melting Point: 14 °C
• Refractive Index: 1.4308
• Boiling Point: 252.1 °C at 760 mmHg
• Flash Point: 94.3 °C
• PSA: 27.69000
• Density: 0.919 g/cm³
• LogP: 4.49580
• Hydrogen Bond Donor Count: 0
• Hydrogen Bond Acceptor Count: 3
• Rotatable Bond Count: 6
• Exact Mass: 306.15027442
• Heavy Atom Count: 18
• Complexity: 201

Purity/Quality:

99% ^*data from raw suppliers

Hexaethylcyclotrisiloxane ^*data from reagent suppliers

Safty Information:

• Statements: 36/37/38
• Safety Statements: 26-36/37/39

MSDS Files:

Useful:

• Canonical SMILES: CC[Si]1(O[Si](O[Si](O1)(CC)CC)(CC)CC)CC
• Uses: Hexaethylcyclotrisiloxane can be used to prepare nano-protective coating.

Technology Process of Hexaethylcyclotrisiloxane

There total 19 articles about Hexaethylcyclotrisiloxane 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: 38.0%

diethyldichlorosilane (1719-53-5) → 1,1,3,3,5,5-hexaethylcyclotrisiloxane (2031-79-0) + octaethylcyclotetrasiloxane (1451-99-6)

Guidance literature:

With water; In toluene; at 20 ℃; for 27h;

Reference yield: 26.0%

chloro-trimethyl-silane (75-77-4) + diethyldichlorosilane (1719-53-5) → 1,1,3,3,5,5-hexaethylcyclotrisiloxane (2031-79-0) + 3,3,5,5-tetraethyl-1,1,1,7,7,7-hexamethyltetrasiloxane (17866-60-3) + octaethylcyclotetrasiloxane (1451-99-6) + 3,3,5,5,7,7-hexaethyl-1,1,1,9,9,9-hexamethylpentasiloxane (138142-65-1)

Guidance literature:

With water; In toluene; at 20 ℃; for 27h; Further byproducts given;

Reference yield:

C8H20O2Si → 1,1,3,3,5,5-hexaethylcyclotrisiloxane (2031-79-0) + octaethylcyclotetrasiloxane (1451-99-6) + tert-butyl alcohol (75-65-0)

Guidance literature:

In nonane; at 160 ℃; Rate constant; Kinetics; Thermodynamic data; ΔE(excit.), ΔS(excit.);

DOI:10.1016/S0022-328X(00)85524-2

upstream raw materials:

diethyl-chloro-isopropoxy-silane

diethyldiethoxysilane

diethyldichlorosilane

chloro-trimethyl-silane

Downstream raw materials:

Dodecaaethyl-pentasiloxan

Decaaethyl-tetrasiloxan

Refernces

• 1、 Qing, Guoping,Cui, Chunming. "Controlled synthesis of cyclosiloxanes by NHC-catalyzed hydrolytic oxidation of dihydrosilanes". supporting information. p. 8746 - 8750. Retrieved 2017/07/22.
• 2、 Taori, Vijay P.,Buchmeiser, Michael R.. "Tandem-reduction of DMF with silanes via necklace-type transition over Pt(0) nanoparticles: Deciphering the dual Si-H effect as an extension of steric effects". supporting information. p. 14820 - 14823. Retrieved 2015/02/19.