18294-00-3

Basic information

• Product Name: Silane, trimethyl(3-methyl-3-butenyl)-
• CAS NO: 18294-00-3
• Molecular Formula: C8H18Si
• Molecular Weight: 142.316
• Mol File: 18294-00-3.mol
• Article Data: 3

Chemical Properties

• CAS DataBase Reference: Silane, trimethyl(3-methyl-3-butenyl)-(CAS DataBase Reference)
• NIST Chemistry Reference: Silane, trimethyl(3-methyl-3-butenyl)-(18294-00-3)
• EPA Substance Registry System: Silane, trimethyl(3-methyl-3-butenyl)-(18294-00-3)

Safety Data

• Hazardous Substances Data: 18294-00-3(Hazardous Substances Data)

Upstream product

• 18279-95-3 4-(trimethylsilyl)-2-chloro-2-methylbutane 
• 77253-67-9 trifluoroethanol-d₃ 
• 226572-49-2 2,2-dimethyl-3-(trimethylsilyl)propyl tosylate 
• 75-77-4 chloro-trimethyl-silane 
• 32264-50-9 1,1-dibromo-2,2-dimethylcyclopropane 

Relevant articles and documents

THE REACTION OF THE TRIMETHYLCHLOROSILANE/MAGNESIUM REAGENT WITH gem-DIBROMOCYCLOPROPANES

The reaction of the trimethylchlorosilane/magnesium reagent with gem-dibromocyclopropanes in tetrahydrofuran medium results in the formation of silylated cyclopropanes and/or silylated ring-opened products, depending on the substituents on the cyclopropane ring.

The γ-silicon effect. I. Solvent effects on the solvolyses of 2,2- dimethyl-3-(trimethylsilyl)propyl and 3-(aryldimethylsilyl)-2,2- dimethylpropyl p-toluenesulfonates

The solvolysis rates of 2,2-dimethyl-3-(trimethylsilyl)propyl and 3- (aryldimethylsilyl)-2,2-dimethylpropyl p-toluenesulfonates were measured in a wide variety of solvents at 45 °C. The solvent effects were analyzed by using the Winstein-Grunwald equation. The solvent effects observed did not give simple linear correlations with the 2-adamantyl Y(OTs) parameter, but showed dispersion behavior in a series of binary solvents. The m values of 0.59-.67 were remarkably lower than unity for the limiting k(c) solvolysis of 2-adamantyl p-toluenesulfonate. The deviation patterns could not be interpreted in terms of nucleophilic assistance by the solvent. The dispersion behavior with reduced m values was found to be more significant for the 3-(aryldimethylsilyl) than for the 3-(trimethylsilyl) derivatives and was compatible with the delocalization of the incipient cationic charge by participation of the Si-Cγ bond in the rate-determining step. An extended dual-parameter treatment, log (k/k(80E)) = m(c)Y(OTs) + m(Δ)Y(Δ), successfully correlated such γ-silyl assisted solvolyses. The M(Δ) values of 0.24-0.49 so obtained, where M(Δ) = 0.51 m(Δ)/(m(c) +0.51 m(Δ)), are a measure of the extent of charge delocalization, suggesting that the γ-silyl group in the percaudal interaction is more effective in delocalizing the cationic charge than the alkyl group in C-C σ-participation, but less so than σ-assisted interaction by the β-aryl group.