Octamethyltrisilane

Base Information

• Chemical Name: Octamethyltrisilane
• CAS No.: 3704-44-7
• Molecular Formula: C8H24Si3
• Molecular Weight: 204.535
• Hs Code.: 2931900090
• DSSTox Substance ID: DTXSID70190543
• Nikkaji Number: J46.997A
• Wikidata: Q63392600
• Mol file: 3704-44-7.mol

Synonyms:Octamethyltrisilane;Trisilane, octamethyl-;3704-44-7;Si3(CH3)8;DTXSID70190543;1,1,1,2,2,3,3,3-Octamethyltrisilane #;Q63392600

Chemical Property of Octamethyltrisilane

Chemical Property:

• Vapor Pressure: 2.1mmHg at 25°C
• Boiling Point: 168.8°Cat760mmHg
• Flash Point: 35.2°C
• PSA: 0.00000
• Density: 0.763g/cm³
• LogP: 3.52800
• Hydrogen Bond Donor Count: 0
• Hydrogen Bond Acceptor Count: 0
• Rotatable Bond Count: 2
• Exact Mass: 204.11858037
• Heavy Atom Count: 11
• Complexity: 120

Purity/Quality:

99% ^*data from raw suppliers

Safty Information:

• Pictogram(s):  
• Hazard Codes: 

MSDS Files:

SDS file from LookChem

Useful:

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

Technology Process of Octamethyltrisilane

There total 3 articles about Octamethyltrisilane 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:

tris-(trimethylsilyl)silane (1873-77-4) → octamethyltrisilane (3704-44-7) + tetrakis(trimethylsilyl)silane (4098-98-0) + 1,1,1,3,3,3-hexamethyltrisilane (5089-32-7) + 1,1,1,2,2,2-hexakis(trimethylsilyl)disilane (197305-30-9)

Guidance literature:

In hexane; for 2h; Further byproducts given. Title compound not separated from byproducts; UV-irradiation;

DOI:10.1139/v00-085

Reference yield:

methyllithium (917-54-4) → tetramethylsilane (75-76-3) + octamethyltrisilane (3704-44-7) + decamethyltetrasilane (865-76-9)

Guidance literature:

methyllithium; With copper(l) iodide; In diethyl ether; at 0 ℃; for 1.16h; Schlenk technique;

With silicon; In diethyl ether; at 23 - 50 ℃; for 2.08h; Schlenk technique; Inert atmosphere;

Reference yield:

p-(trimethylsilyl)toluene (3728-43-6) → 1,1,1,2,2,2-hexamethyldisilane (1450-14-2) + methane (34557-54-5,27936-85-2) + octamethyltrisilane (3704-44-7) + para-xylene (106-42-3) + 3-(trimethylsilyl)toluene (3728-44-7) + toluene (108-88-3,15644-74-3,16713-13-6)

Guidance literature:

Ni-Y-zeolite; at 300 ℃; Product distribution; Mechanism; also phenyltrimethylsilane, thermal reaction with alcohols and phenols; var. temp.;

upstream raw materials:

p-(trimethylsilyl)toluene

tris-(trimethylsilyl)silane

methyllithium

Downstream raw materials:

octamethyltrisiloxabe

benzoic acid

2-[phenyl(trimethylsilyl)methyl]malononitrile

2-[(1,1,2,2,2-Pentamethyl-disilanyl)-phenyl-methyl]-malononitrile