1,1,5,5-Tetramethyl-3,3-diphenyl-1,5-divinyltrisiloxane

Base Information

• Chemical Name: 1,1,5,5-Tetramethyl-3,3-diphenyl-1,5-divinyltrisiloxane
• CAS No.: 18586-22-6
• Deprecated CAS: 1449750-38-2
• Molecular Formula: C20H28O2Si3
• Molecular Weight: 384.698
• Hs Code.: 2934999090
• European Community (EC) Number: 242-426-1
• DSSTox Substance ID: DTXSID4066385
• Nikkaji Number: J222.244B
• Wikidata: Q81992983
• Mol file: 18586-22-6.mol

Synonyms:18586-22-6;1,1,5,5-Tetramethyl-3,3-diphenyl-1,5-divinyltrisiloxane;bis[[ethenyl(dimethyl)silyl]oxy]-diphenylsilane;EINECS 242-426-1;Trisiloxane, 1,5-diethenyl-1,1,5,5-tetramethyl-3,3-diphenyl-;1,5-Diethenyl-1,1,5,5-dimethyl-3,3-diphenyltrisiloxane;SCHEMBL331185;C20H28O2Si3;DTXSID4066385;C20-H28-O2-Si3;MFCD00156459;FT-0753659;Trisiloxane, 1,1,5,5-tetramethyl-3,3-diphenyl-1,5-divinyl-

Chemical Property of 1,1,5,5-Tetramethyl-3,3-diphenyl-1,5-divinyltrisiloxane

Chemical Property:

• Vapor Pressure: 1.6E-05mmHg at 25°C
• Melting Point: <0 ºC
• Refractive Index: 1.5057
• Boiling Point: 376.1 °C at 760 mmHg
• Flash Point: 154 °C
• PSA: 18.46000
• Density: 0.98 g/cm³
• LogP: 4.59760
• Hydrogen Bond Donor Count: 0
• Hydrogen Bond Acceptor Count: 2
• Rotatable Bond Count: 8
• Exact Mass: 384.13970973
• Heavy Atom Count: 25
• Complexity: 408

Purity/Quality:

99% ^*data from raw suppliers

Safty Information:

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

MSDS Files:

SDS file from LookChem

Useful:

• Canonical SMILES: C[Si](C)(C=C)O[Si](C1=CC=CC=C1)(C2=CC=CC=C2)O[Si](C)(C)C=C

Technology Process of 1,1,5,5-Tetramethyl-3,3-diphenyl-1,5-divinyltrisiloxane

There total 5 articles about 1,1,5,5-Tetramethyl-3,3-diphenyl-1,5-divinyltrisiloxane 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: 99.0%

1,3-Divinyl-1,1,3,3-tetramethyl-disilazan(germ.)=divinyltetramethyldisiloxane (7691-02-3) + diphenylsilanediol (947-42-2) → 1,5-divinyl-3,3-diphenyl-1,1,5,5-tetramethyltrisiloxane (18586-22-6)

Guidance literature:

In acetonitrile; at 20 ℃; for 0.5h;

DOI:10.1002/cssc.201802757

Reference yield: 94.6%

tetramethyldivinyldisiloxane (2627-95-4) + diphenylsilanediol (947-42-2) → 1,5-divinyl-3,3-diphenyl-1,1,5,5-tetramethyltrisiloxane (18586-22-6)

Guidance literature:

With toluene-4-sulfonic acid; In hexane; at 70 - 80 ℃; for 2h; Reagent/catalyst; Inert atmosphere; Green chemistry;

Reference yield: 51.2%

tetramethyldivinyldisiloxane (2627-95-4) + dimethoxy(diphenyl)silane (6843-66-9) → 1,5-divinyl-3,3-diphenyl-1,1,5,5-tetramethyltrisiloxane (18586-22-6)

Guidance literature:

With trifluorormethanesulfonic acid; acetic anhydride; acetic acid; at 65 ℃; for 2.5h;

upstream raw materials:

Chlorodimethylvinylsilane

diphenylsilyl dichloride

tetramethyldivinyldisiloxane

dimethoxy(diphenyl)silane

Refernces

• 1、 Kuciński, Krzysztof,Hreczycho, Grzegorz. "A Highly Effective Route to Si?O?Si Moieties through O-Silylation of Silanols and Polyhedral Oligomeric Silsesquioxane Silanols with Disilazanes". . p. 1043 - 1048. Retrieved 2019/02/05.
• 2、 -. "PREPARATION METHOD OF VINYL-TERMINATED SILOXANE". Paragraph 0019; 0020. . Retrieved 2015/11/03.