Disiloxane, ethenylpentamethyl-

Base Information

• Chemical Name: Disiloxane, ethenylpentamethyl-
• CAS No.: 1438-79-5
• Molecular Formula: C7H18OSi2
• Molecular Weight: 174.39
• Hs Code.: 2934999090
• European Community (EC) Number: 801-255-8
• DSSTox Substance ID: DTXSID2061692
• Nikkaji Number: J120.968J
• Wikidata: Q81989605
• Mol file: 1438-79-5.mol

Synonyms:1438-79-5;VINYLPENTAMETHYLDISILOXANE;Disiloxane, ethenylpentamethyl-;Pentamethylvinyldisiloxane;ethenyl-dimethyl-trimethylsilyloxysilane;1,1,1,3,3-Pentamethyl-3-vinyldisiloxane;Disiloxane, 1-ethenyl-1,1,3,3,3-pentamethyl-;Disiloxane, pentamethylvinyl-;vinyl pentamethyl disiloxane;C7H18OSi2;SCHEMBL335411;C7-H18-O-Si2;DTXSID2061692;Vinyl(trimethylsiloxy)dimethylsilane;MFCD00078526;VINYLPENTAMETHYLDISILOXANE 99%;AKOS006345935;FS-5618;ethenyldimethyl[(trimethylsilyl)oxy]silane;1,1,1,3,3-Pentamethyl-3-vinyl-disiloxane;FT-0715352

Chemical Property of Disiloxane, ethenylpentamethyl-

Chemical Property:

• Vapor Pressure: 34.4mmHg at 25°C
• Melting Point: <0°C
• Refractive Index: 1.3930
• Boiling Point: 105.4 °C at 760 mmHg
• Flash Point: 11.4 °C
• PSA: 9.23000
• Density: 0.803 g/cm³
• LogP: 2.76820
• Hydrogen Bond Donor Count: 0
• Hydrogen Bond Acceptor Count: 1
• Rotatable Bond Count: 3
• Exact Mass: 174.08961826
• Heavy Atom Count: 10
• Complexity: 124

Purity/Quality:

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

Safty Information:

• Statements: 11-36/37/38
• Safety Statements: 3/7-9-16-36/37/39

MSDS Files:

SDS file from LookChem

Useful:

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

Technology Process of Disiloxane, ethenylpentamethyl-

There total 2 articles about Disiloxane, ethenylpentamethyl- 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:

chloro-trimethyl-silane (75-77-4) + Chlorodimethylvinylsilane (1719-58-0) → Hexamethyldisiloxane (107-46-0) + 1,1,3,3,3-pentamethyl-1-vinyldisiloxane (1438-79-5) + tetramethyldivinyldisiloxane (2627-95-4)

Guidance literature:

With water; at 0 - 10 ℃; for 2h;

Reference yield:

(1-hydrohexafluoroisobutenyloxy)trimethylsilane (857899-86-6) + Chlorodimethylvinylsilane (1719-58-0) → dimethyl-(3,3,3-trifluoro-2-trifluoromethyl-propenyloxy)-vinyl-silane + 1,1,3,3,3-pentamethyl-1-vinyldisiloxane (1438-79-5) + tetramethyldivinyldisiloxane (2627-95-4) + dimethyl vinyl fluorosilane (38755-76-9)

Guidance literature:

(1-hydrohexafluoroisobutenyloxy)trimethylsilane; With cesium fluoride; In diethylene glycol dimethyl ether; at -10 ℃; for 2h;

Chlorodimethylvinylsilane; In diethylene glycol dimethyl ether; at -10 ℃; for 2h; Further byproducts given;

DOI:10.1007/s11172-005-0189-4

Reference yield: 96.0%

1,1,3,3,3-pentamethyl-1-vinyldisiloxane (1438-79-5) + (E)-buta-1,3-dienylbenzene (16939-57-4) → 1,1,1,3,3-pentamethyl-3-((1E,3E)-4-phenylbuta-1,3-dien-1-yl)disiloxane

Guidance literature:

With carbonylchlorohydridobis(tricyclohexylphosphine)ruthenium(II); In toluene; at 120 ℃; for 24h; Inert atmosphere;

DOI:10.1021/acs.orglett.5b00865

upstream raw materials:

(1-hydrohexafluoroisobutenyloxy)trimethylsilane

Chlorodimethylvinylsilane

chloro-trimethyl-silane

Downstream raw materials:

1,2-bis(1,1-3,3,3-pentamethyldisiloxanyl)ethane

1,1,1,3,3,5,5-heptamethyl-5-phenyl-trisiloxane

(E)-[1-(4-bromophenyl)-2-(1,1,3,3,3-pentamethyldisiloxy)]ethene

Refernces

• 1、 -. "Preparation method of 1-vinyl-1,1,3,3,3-pentamethyldisiloxane". Paragraph 0039-0041. . Retrieved 2018/09/11.