1,1,3,3-Tetramethyl-1,3-divinyldisiloxane

Base Information

• Chemical Name: 1,1,3,3-Tetramethyl-1,3-divinyldisiloxane
• CAS No.: 2627-95-4
• Deprecated CAS: 846574-60-5,1588777-22-3
• Molecular Formula: C8H18OSi2
• Molecular Weight: 186.401
• Hs Code.: 29319090
• European Community (EC) Number: 220-099-6,614-275-5
• UNII: SJ4D71ZQF4
• DSSTox Substance ID: DTXSID7038810
• Nikkaji Number: J7.637F
• Wikipedia: 1,1,3,3-Tetramethyl-1,3-divinyldisiloxane
• Wikidata: Q27289239
• ChEMBL ID: CHEMBL1878672
• Mol file: 2627-95-4.mol

Synonyms:divinyltetramethyldisiloxane

Chemical Property of 1,1,3,3-Tetramethyl-1,3-divinyldisiloxane

Chemical Property:

• Appearance/Colour: Colorless or yellowish transparent liquid
• Vapor Pressure: 7.744mmHg at 25°C
• Melting Point: -99 °C(lit.)
• Refractive Index: n20/D 1.411(lit.)
• Boiling Point: 138.999 °C at 760 mmHg
• Flash Point: 33.325 °C
• PSA: 9.23000
• Density: 0.813 g/cm³
• LogP: 2.86360
• Storage Temp.: Flammables area
• Sensitive.: Moisture Sensitive
• Water Solubility.: insoluble
• Hydrogen Bond Donor Count: 0
• Hydrogen Bond Acceptor Count: 1
• Rotatable Bond Count: 4
• Exact Mass: 186.08961826
• Heavy Atom Count: 11
• Complexity: 144

Purity/Quality:

99% ^*data from raw suppliers

Divinyltetramethyldisiloxane ^*data from reagent suppliers

Safty Information:

• Pictogram(s): F,Xi
• Hazard Codes: F,Xi
• Statements: 11-36/37/38-10
• Safety Statements: 16-26-36-37/39

MSDS Files:

SDS file from LookChem

Useful:

• Chemical Classes: Metals -> Metalloid Compounds (Silicon)
• Canonical SMILES: C[Si](C)(C=C)O[Si](C)(C)C=C
• Uses: Divinyl tetramethyl disiloxane could be used as a additives(intermediates) in the production process of addition silicone rubber, silicone gel, liquid silicone, vinyl silicone resin, vinyl silicone oil, platinum chromium compound and others. POTENTIAL VINYL NUCLEOPHILE IN CROSS-COUPLING REACTIONS. 1,3-Divinyltetramethyldisiloxane acts as a potential vinyl donor used in cross-coupling reactions. It is also involved in the copolymerization reaction with aromatic ketones. 1,3-Divinyltetramethyldisiloxane acts as a potential vinyl donor used in cross-coupling reactions. It is also involved in the copolymerization reaction with aromatic ketones.

Technology Process of 1,1,3,3-Tetramethyl-1,3-divinyldisiloxane

There total 15 articles about 1,1,3,3-Tetramethyl-1,3-divinyldisiloxane 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: 96.0%

dimethylvinylsilane (18243-27-1) → tetramethyldivinyldisiloxane (2627-95-4)

Guidance literature:

With sodium hydroxide; at 68 ℃; for 4h;

Reference yield: 94.0%

ethoxydimethylvinylsilane (5356-83-2) + (2-methylallyl)-dimethylvinylsilane (1351415-92-3) → tetramethyldivinyldisiloxane (2627-95-4)

Guidance literature:

With water; scandium tris(trifluoromethanesulfonate); In acetonitrile; at 20 ℃; for 1h;

DOI:10.1002/ejic.201402904

Reference yield: 60.0%

ethoxydimethylvinylsilane (5356-83-2) → tetramethyldivinyldisiloxane (2627-95-4) + 2-methyl-3-butene-2-ol, sodium salt (79238-55-4)

Guidance literature:

With water; sodium hydroxide; at 20 ℃;

DOI:10.1021/ja404255u

upstream raw materials:

diethyl ether

Chlorodimethylvinylsilane

ethoxydimethylvinylsilane

acetone

Downstream raw materials:

C₂₄H₄₀N₂O₄Si₄

C₂₄H₄₀N₂O₄Si₄

vinyldimethylmonoacetoxysilane

o-methoxystyrene

Refernces

• 1、 -. "Low alkoxy branched siloxane continuous number bath method". Paragraph 0158-0169. . Retrieved 2019/05/15.
• 2、 -. "Method for preparing 1,3-divinyl-1,1,3,3-tetramethyldisiloxane". Paragraph 0014; 0015; 0016-0019; 0020-0023; 0024-0027. . Retrieved 2018/06/26.