1068-69-5

Basic information

• Product Name: TRIS(TRIMETHYLSILYL)METHANE
• Synonyms: TRIS(TRIMETHYLSILYL)METHANE 97+%;Tris(trimethylsilyl)methane,min.97%;Tris(trimethylsilyl)methane, min. 97%;2,2,4,4-Tetramethyl-3-(trimethylsilyl)-2,4-disilapentane;Methanetriyltris(trimethylsilane);Methylidynetris(trimethylsilane);Tris(trimethylsilyl)methane,93%;1,1',1''-Methylidynetris[1,1,1-trimethylsilane]
• CAS NO: 1068-69-5
• Molecular Formula: C₁₀H₂₈Si₃
• Molecular Weight: 232.59
• Product Categories: Organometallic Reagents;Organosilicon;Others;organosilicon compounds
• Mol File: 1068-69-5.mol
• Article Data: 7

Chemical Properties

• Boiling Point: 55-56 °C2 mm Hg(lit.)
• Flash Point: 170 °F
• Appearance: colorless/liquid
• Density: 0.827 g/mL at 25 °C(lit.)
• Vapor Pressure: 0.0467mmHg at 25°C
• Refractive Index: n20/D 1.464(lit.)
• Solubility: sol common organic solvents.
• BRN: 1850371
• CAS DataBase Reference: TRIS(TRIMETHYLSILYL)METHANE(CAS DataBase Reference)
• NIST Chemistry Reference: TRIS(TRIMETHYLSILYL)METHANE(1068-69-5)
• EPA Substance Registry System: TRIS(TRIMETHYLSILYL)METHANE(1068-69-5)

Safety Data

• Hazard Codes: Xi
• Statements: 36/37/38
• Safety Statements: 26-36
• WGK Germany: 3
• TSCA: No
• Hazardous Substances Data: 1068-69-5(Hazardous Substances Data)

Usage

Chemical Properties

CLEAR COLORLESS LIQUID

Physical properties

bp 219 °C, 93–95 °C/13.5 mmHg; d 0.836 g cm?3; n20 D 1.4657.

Uses

Different sources of media describe the Uses of 1068-69-5 differently. You can refer to the following data:
1. Sterically demanding "risyl"group.
2. Tris(trimethylsilyl)methane is precursor of (Me3Si)3CLi, useful to introduce bulky tris(trimethylsilyl)methyl (trisyl) group; Peterson alkenation reagent. It takes part in the reactions of Synthesis of Tris(trimethylsilyl)methyl Bromide, Metalation, Formation of Bis(trimethylsilyl)methyllithium, Hydrosilylation of Double Bonds, Intramolecular Reactions, Intermolecular Reactions, Nonradical Reactions etc.

InChI:InChI=1/C10H28Si3/c1-11(2,3)10(12(4,5)6)13(7,8)9/h10H,1-9H3

Upstream product

• 56-23-5 tetrachloromethane 
• 75-77-4 chloro-trimethyl-silane 
• 15951-41-4 bis(trimethylsilyl)dichloromethane 
• 67-66-3 chloroform 
• 75-25-2 Bromoform 

Downstream Products

• 51318-08-2 ((Z)-3,3-Dimethyl-2-phenyl-but-1-enyl)-trimethyl-silane 
• 72190-77-3 [Chloro-(tris-trimethylsilanyl-methyl)-silanyl]-benzene 
• 72190-82-0 [Methyl-(tris-trimethylsilanyl-methyl)-silanyl]-benzene 
• 72190-81-9 [Fluoro-methyl-(tris-trimethylsilanyl-methyl)-silanyl]-benzene 
• 68260-14-0 (diphenyl)fluorosilane 
• 72190-80-8 [Methoxy-methyl-(tris-trimethylsilanyl-methyl)-silanyl]-benzene 
• 72208-75-4 C₂₃H₄₀OSi₄ 
• 18415-23-1 1,1-bis(trimethylsilyl)-2-phenylethylene 
• 72190-66-0 [Dichloro-(tris-trimethylsilanyl-methyl)-silanyl]-benzene 
• 62762-16-7 4-Phenyl-1,1-bis(trimethylsilyl)-1,3-butadien 
• 80395-51-3 tris(trimethylsilyl)methane 
• 78235-87-7 C₁₉H₃₈ClPSi₃ 
• 31704-09-3 tris(trimethylsilyl)methyl methyl sulfide 
• 98351-27-0 C₂₀H₅₄S₄Si₆ 

Relevant articles and documents

Crystal structures of organometallic compounds of lithium and magnesium containing the bulky ligands C(SiMe3)2(SiMe2X) X=Me, Ph, NMe2, or C5H4N-2

The complex [Li(TMEDA){C(SiMe3)2SiMe2NMe2}] (1) (TMEDA=N,N,N′,N′-tetramethylethane-1,2,-diamine) was found to crystallise with an internally coordinated structure like that of [Li(THF)2{C(SiMe3)2SiMe2NMe 2}] (THF=tetrahydrfuran). In contrast, the compound with Ph in place of NMe2 crystallised as a dialkyllithate [Li(TMEDA)2][Li{C(SiMe3)2(SiMe 2Ph)}2] (4). The reaction of 4 with MgBr2 gave the doubly bromide-bridged lithium-magnesium complex [Li(TMEDA)(μ-Br)2Mg{C(SiMe3)2(SiMe 2Ph)}(THF)] (6), and that of [Li(THF){C(SiMe3)2(SiMe2C5H 4N-2)}] gave the singly bridged compound [Li(THF)3(μ-Br)MgBr{C(SiMe3)2(SiMe 2C5H4N-2)] (8). The Grignard reagents [Mg{C(SiMe3)3}I(OEt2)]2 (10) and [Mg{C(SiMe3)2 (SiMe2Ph)}I(OEt2)]2 (11) were obtained from the reactions between (Me3Si)3CI and (Me2Ph)(Me3Si)CI, respectively, with magnesium metal and shown to have halide-bridged structures. The unsymmetrical dialkylmagnesium [MgBu{C(SiMe3)2(SiMe2NMe2)}(THF)] (13), was prepared from a mixture of LiBu, 1 and [MgBr2 (OEt2)2].

Properties of Chalcogen-Chalcogen Bonds, XVII. - Di- and Trisulfanes with Sterically Congested Alkyl Substtuents: The First trans-Dialkyldisulfane

Bistrisulfane (1) is obtained from tris(trimethylsilyl)methyllithium and sulfur with subsequent oxidation by oxygen or from tris(trimethylsilyl)methanethiol with sulfur dichloride.The solid trisulfane contains a transoid (helical) C-S-S-S-C backbone without severe distortion from steric strain.Desulfuration of the byproduct bistetrasulfane (2) with mercury provides 1, but further desulfuration of 1 to bisdisulfane (3) has not been achieved. 3 was isolated after oxidation of lithium tris(trimethylsilyl)methanethiolate with bromine. 3 contains a trans-C-S-S-C moiety with an unusually long S-S bond (210-211 pm).The less crowded bis(triphenylmethyl)disulfane (4) contains a "normal" C-S-S-C moiety with anticlinal conformation (torsion angle -110 deg). Key Words: Disulfanes / Trisulfanes / Bond conformations, S-S

Electrosynthese en chimie organosilicique: silylation selective de polychloromethanes

Silylation by electroreduction of carbon tetrachloride, chloroform or methylene chloride is more selective than the common organometallic route.Me3SiCCl3 (94percent) and (Me3Si)2Cl2 (68percent) were thus obtained from CCl4, Me3SiCHCl2, (94percent) and (Me3Si)2CHCl (56percent) from CHCl3 and Me3SiCH2Cl (90percent) from CH2Cl2.Complete silylation of polychloromethanes was also successful by electrosynthesis and gave satisfactory yields.