5581-68-0

Basic information

• Product Name: tributoxymethylsilane
• Synonyms: tributoxymethylsilane;Methyltri-n-butoxysilane
• CAS NO: 5581-68-0
• Molecular Formula: C₁₃H₃₀O₃Si
• Molecular Weight: 262.461
• EINECS: 226-980-1
• Mol File: 5581-68-0.mol
• Article Data: 4

Chemical Properties

• Boiling Point: 213.6±8.0℃ (760 Torr)
• Flash Point: 93.7±21.3℃
• Appearance: /
• Density: 0.880±0.06 g/cm3 (20 ºC 760 Torr)
• Vapor Pressure: 0.237mmHg at 25°C
• Refractive Index: 1.4118 (589.3 nm 20℃)
• CAS DataBase Reference: tributoxymethylsilane(CAS DataBase Reference)
• NIST Chemistry Reference: tributoxymethylsilane(5581-68-0)
• EPA Substance Registry System: tributoxymethylsilane(5581-68-0)

Safety Data

• Hazardous Substances Data: 5581-68-0(Hazardous Substances Data)

Usage

General Description

Tributoxymethylsilane is a colorless, volatile liquid chemical compound with the formula (CH3O)3SiCH2Cl. It is commonly used as a solvent and a reagent in various organic synthesis reactions. It reacts readily with water and alcohols to produce silanols and alkoxysilanes, and can also be used as a crosslinking agent in silicone polymerization reactions. Additionally, tributoxymethylsilane is used in the production of adhesives, sealants, and coatings as a moisture scavenger and adhesion promoter. It is important to handle this chemical with caution, as it is highly flammable and can cause irritation to the eyes, respiratory system, and skin upon exposure.

InChI:InChI=1/C13H30O3Si/c1-5-8-11-14-17(4,15-12-9-6-2)16-13-10-7-3/h5-13H2,1-4H3

Upstream product

• 141-72-0 acetone-dibutylacetal 
• 84566-30-3 2,5,5-trimethyl-2-butoxy-2-sila-1,3-dioxacyclohexane 
• 88804-89-1 2,4,4-trimethyl-2-butoxy-2-sila-1,3-dioxacyclohexane 
• 123-86-4 acetic acid butyl ester 
• 2031-67-6 Methyltriethoxysilan 
• 13112-62-4 iso-butyraldehyde di-n-butyl acetal 
• 77-63-4 2,4,6,8-tetraphenyl-2,4,6,8-tetramethylcyclotetrasiloxane 
• 71-36-3 butan-1-ol 
• 75-79-6 Methyltrichlorosilane 
• 75-78-5 dimethylsilicon dichloride 

Downstream Products

• 17898-30-5 Chlor-dibutyloxy-methyl-silan 
• 141-72-0 acetone-dibutylacetal 
• 84566-30-3 2,5,5-trimethyl-2-butoxy-2-sila-1,3-dioxacyclohexane 
• 88804-89-1 2,4,4-trimethyl-2-butoxy-2-sila-1,3-dioxacyclohexane 
• 17865-85-9 octamethylsilsesquioxane 

Relevant articles and documents

A (Borylmethyl)silane Bearing Three Hydrolyzable Groups on Silicon: Synthesis via Iridium-Catalyzed C(sp3)-H Borylation and Conversion to Functionalized Siloxanes

An iridium-catalyzed C(sp3)-H borylation of X3SiMe (X = hydrolyzable group) was established. A trialkoxy(methyl)silane bearing sterically demanding neopentyloxy groups (X = neopentyloxy) underwent C-H borylation at the methyl group on silicon, giving (borylmethyl)tris(neopentyloxy)silane in 70% isolated yield. The choice of the hydrolyzable group X was the key to efficient and chemoselective C-H borylation; trialkoxy(methyl)silanes bearing sterically less demanding alkoxy groups (X = ethoxy, n-butyloxy, and isobutyloxy) suffered from C-H activation at the alkoxy groups, and trichloro(methyl)silane (X = Cl) failed to react. A trimethylsiloxy group could substitute the neopentyloxy groups of the borylated product by the reaction of trimethylsilanol in the presence of tetrabutylammonium fluoride.

Catalytic Activity of Titanium Alkoxy Derivatives in Alcoholysis of Ethoxysilanes

Titanium tetraalkooxides, regardless of their structure, are effective catalysts for alcoholysis of ethoxysilanes. Titanium alkoxychlorides demonstrate the highest catalytic activity, whereas the catalytic activity of coordination-saturated titanium compounds is the lowest. The influence of the catalyst nature on its activity is analyzed.