1,2-Bis(pentamethyldisiloxanyl)ethane

Base Information

• Chemical Name: 1,2-Bis(pentamethyldisiloxanyl)ethane
• CAS No.: 6231-68-1
• Molecular Formula: C12H34O2Si4
• Molecular Weight: 322.73900
• DSSTox Substance ID: DTXSID50695667
• Wikidata: Q82624922
• Mol file: 6231-68-1.mol

Synonyms:1,2-BIS(PENTAMETHYLDISILOXANYL)ETHANE;6231-68-1;SCHEMBL860349;DTXSID50695667;2-[dimethyl(trimethylsilyloxy)silyl]ethyl-dimethyl-trimethylsilyloxysilane;1,1'-(Ethane-1,2-diyl)bis(pentamethyldisiloxane)

Chemical Property of 1,2-Bis(pentamethyldisiloxanyl)ethane

Chemical Property:

• Melting Point: -52°C
• Refractive Index: 1.410
• Boiling Point: 254-255°C
• Flash Point: 92°C (198°F)
• PSA: 18.46000
• LogP: 5.09960
• Hydrogen Bond Donor Count: 0
• Hydrogen Bond Acceptor Count: 2
• Rotatable Bond Count: 7
• Exact Mass: 322.16358646
• Heavy Atom Count: 18
• Complexity: 236

Purity/Quality:

98%,99%, ^*data from raw suppliers

1,2-BIS-(PENTAMETHYLDISILOXANYL)ETHANE 95.00% ^*data from reagent suppliers

Safty Information:

• Pictogram(s):  
• Hazard Codes: 

MSDS Files:

SDS file from LookChem

Useful:

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

Technology Process of 1,2-Bis(pentamethyldisiloxanyl)ethane

There total 8 articles about 1,2-Bis(pentamethyldisiloxanyl)ethane 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: 95.0%

1,1,1,3,3-pentamethyl-1,3-disiloxane (1438-82-0) + 1,1,3,3,3-pentamethyl-1-vinyldisiloxane (1438-79-5) → 1,2-bis(1,1-3,3,3-pentamethyldisiloxanyl)ethane (6231-68-1) + 1,1-Bis-(1,1,3,3,3-pentamethyl-disiloxanyl)-ethane

Guidance literature:

(Me)3SiC₃H₆OC₆H₄CN*PtCl₂; at 80 ℃; for 2h;

DOI:10.1039/b411123k

Reference yield: 93.0%

1,1,1,3,3-pentamethyl-1,3-disiloxane (1438-82-0) + 1,1,3,3,3-pentamethyl-1-vinyldisiloxane (1438-79-5) → 1,2-bis(1,1-3,3,3-pentamethyldisiloxanyl)ethane (6231-68-1)

Guidance literature:

With C₂₉H₂₃Br₂CoN₂; trimethylsilylmethyllithium; In toluene; pentane; at 22 ℃; for 1h; Inert atmosphere;

DOI:10.1002/anie.201612460

Reference yield: 61.0%

Hexamethyldisiloxane (107-46-0) + 1,2-bis-(chlorodimethylsilyl)ethane (13528-93-3) → 1,2-bis(1,1-3,3,3-pentamethyldisiloxanyl)ethane (6231-68-1)

Guidance literature:

1,2-bis-(chlorodimethylsilyl)ethane; With water; In toluene; at 90 ℃; for 6h;

Hexamethyldisiloxane; trifluorormethanesulfonic acid; In toluene; at 50 ℃;

upstream raw materials:

1,1,1,3,3-pentamethyl-1,3-disiloxane

1,1,3,3,3-pentamethyl-1-vinyldisiloxane

acetylene

Hexamethyldisiloxane

Refernces

• 1、 -. "HYDROSILYLATION IRON CATALYST". Paragraph 0197; 0235; 0270. . Retrieved 2017/09/25.
• 2、 -. "Method for producing polyimidesiloxane". Paragraph 0042. . Retrieved 2018/10/16.