2,4,6,8,10,12-Hexamethylcyclohexasiloxane

Base Information

• Chemical Name: 2,4,6,8,10,12-Hexamethylcyclohexasiloxane
• CAS No.: 6166-87-6
• Molecular Formula: C6H30O6Si6
• Molecular Weight: 360.766
• European Community (EC) Number: 860-209-5
• DSSTox Substance ID: DTXSID901040115
• Mol file: 6166-87-6.mol

Synonyms:2,4,6,8,10,12-Hexamethylcyclohexasiloxane;6166-87-6;SCHEMBL614820;DTXSID901040115

Chemical Property of 2,4,6,8,10,12-Hexamethylcyclohexasiloxane

Chemical Property:

• Vapor Pressure: 0.313mmHg at 25°C
• Melting Point: -79°C
• Refractive Index: n20/D 1.394(lit.)
• Boiling Point: 34 °C/0.1 mmHg(lit.)
• Flash Point: 65 °C
• PSA: 55.38000
• Density: 0.999 g/mL at 25 °C(lit.)
• LogP: -0.79860
• Hydrogen Bond Donor Count: 0
• Hydrogen Bond Acceptor Count: 6
• Rotatable Bond Count: 0
• Exact Mass: 353.97189750
• Heavy Atom Count: 18
• Complexity: 163

Purity/Quality:

99%, ^*data from raw suppliers

2,4,6,8,10,12-HEXAMETHYLCYCLOHEXASILOXANE 95.00% ^*data from reagent suppliers

Safty Information:

• Pictogram(s):  
• Hazard Codes: 

MSDS Files:

Useful:

• Canonical SMILES: C[Si]1O[Si](O[Si](O[Si](O[Si](O[Si](O1)C)C)C)C)C

Technology Process of 2,4,6,8,10,12-Hexamethylcyclohexasiloxane

There total 6 articles about 2,4,6,8,10,12-Hexamethylcyclohexasiloxane 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: 51.0%

C51H198O46Si47 → 2,4,6,8-tetramethylcyclotetrasiloxane (2370-88-9) + 1,3,5,7,9-pentamethylcyclopentasiloxane (6166-86-5) + 2,4,6,8,10,12-hexamethyl-cyclohexasiloxane (6166-87-6)

Guidance literature:

tris(trimethylsiloxy)aluminum; at 160 - 180 ℃; for 2h; under 50 - 100 Torr; Product distribution / selectivity;

Reference yield: 35.6%

Dichloromethylsilane (75-54-7) → 2,4,6,8-tetramethylcyclotetrasiloxane (2370-88-9) + 1,3,5,7,9-pentamethylcyclopentasiloxane (6166-86-5) + 2,4,6,8,10,12-hexamethyl-cyclohexasiloxane (6166-87-6)

Guidance literature:

With H₂O; In diethyl ether; water; addn. of (CH3)SiHCl2 to a mixt. of ether and crushed ice at -10 to 7°C under vigorous stirring;;

Reference yield:

Dichloromethylsilane (75-54-7) + water (7732-18-5) → 2,4,6,8-tetramethylcyclotetrasiloxane (2370-88-9) + 1,3,5,7,9-pentamethylcyclopentasiloxane (6166-86-5) + 2,4,6,8,10,12-hexamethyl-cyclohexasiloxane (6166-87-6)

Guidance literature:

Dichloromethylsilane; water; at 33 ℃; under 3863.02 Torr;

dodecylbenzenesulphonic acid; In isopar P; at 20 ℃; for 3h;

upstream raw materials:

Dichloromethylsilane

diethyl ether

water

Refernces

• 1、 -. "PROCESS FOR PREPARING CYCLIC ORGANOHYDROGENSILOXANES". Page/Page column 6; 7. . Retrieved 2008/06/13.