5157-75-5

Basic information

• Product Name: DICHLORO-METHYL-OCTADECYLSILANE
• Synonyms: Dichloro-methyl-octadecylsilane Wacker;Octadecyl Dichloro Methylsilane;METHYL-OCTADECYL-DICHLOROSILANE;METHYLOCTADECYLSILICIUMDICHLORID;METHYL-N-OCTADECYLDICHLOROSILANE;DICHLORO-N-OCTADECYLMETHYLSILANE;DICHLOROOCTADECYLMETHYLSILANE;DICHLORO-METHYL-OCTADECYLSILANE
• CAS NO: 5157-75-5
• Molecular Formula: C₁₉H₄₀Cl₂Si
• Molecular Weight: 367.51
• EINECS: 225-931-1
• Product Categories: Dichlorosilanes;Dichlorosilanes (for Polysilanes);Functional Materials;Reagent for High-Performance Polymer Research;Si (Classes of Silicon Compounds);Si-Cl Compounds
• Mol File: 5157-75-5.mol
• Article Data: 4

Chemical Properties

• Melting Point: ~25 °C(lit.)
• Boiling Point: 185 °C2.5 mm Hg(lit.)
• Flash Point: 185 °C
• Appearance: /
• Density: 0.92 g/mL at 20 °C(lit.)
• Vapor Pressure: 1.07E-05mmHg at 25°C
• Refractive Index: n20/D 1.457(lit.)
• BRN: 1774816
• CAS DataBase Reference: DICHLORO-METHYL-OCTADECYLSILANE(CAS DataBase Reference)
• NIST Chemistry Reference: DICHLORO-METHYL-OCTADECYLSILANE(5157-75-5)
• EPA Substance Registry System: DICHLORO-METHYL-OCTADECYLSILANE(5157-75-5)

Safety Data

• Hazard Codes: C
• Statements: 34
• Safety Statements: 26-28-36/37/39-45
• RIDADR: UN 2987 8/PG 2
• WGK Germany: 1
• F: 10-21
• TSCA: Yes
• HazardClass: 8
• PackingGroup: II
• Hazardous Substances Data: 5157-75-5(Hazardous Substances Data)

Usage

Description

DICHLORO-METHYL-OCTADECYLSILANE is a chemical compound that possesses unique properties, making it suitable for various applications across different industries. It is characterized by its ability to form stable bonds and create specific functional groups, which contribute to its versatility in different applications.

Uses

Used in Chemical Synthesis:
DICHLORO-METHYL-OCTADECYLSILANE is used as a precursor for the preparation of dipyridylsilane receptors. This is achieved by reacting it with pyridinemethanol using triethylamine at room temperature (RT). The application reason is to create a receptor with specific binding properties, which can be utilized in various chemical and biological processes.
Used in Energy Storage:
In the energy storage industry, DICHLORO-METHYL-OCTADECYLSILANE is used as a functionalizing agent for a new mesoporous silica material. The application reason is to enhance the performance of Li-ion batteries by improving the material's properties, such as conductivity and stability.
Used in Paper Industry:
DICHLORO-METHYL-OCTADECYLSILANE is used as a functionalizing agent for preparing papers with hydrophobic self-assembled monolayers. The application reason is to provide water-resistant properties to the paper, making it suitable for various applications where resistance to water and other liquids is required.

InChI:InChI=1/C19H40Cl2Si/c1-3-4-5-6-7-8-9-10-11-12-13-14-15-16-17-18-19-22(2,20)21/h3-19H2,1-2H3

Upstream product

• 75-54-7 Dichloromethylsilane 
• 112-88-9 octadec-1-ene 

Downstream Products

• 18643-08-8 dimethyloctadecylchlorosilane 

Relevant articles and documents

Preparation of polycarboxylic acid-functionalized silica supported Pt catalysts and their applications in alkene hydrosilylation

A series of novel immobilized platinum catalysts was prepared by loading Pt onto silica particles modified with polycarboxylic acid groups such as diethylenetriaminepentaacetic acid (DTPA), nitrolotriacetic acid (NTA) and succinic acid (SA). The three modified heterogeneous Pt catalysts were characterized using infrared spectroscopy (IR), transmission electron microscopy (TEM), X-ray photoelectron spectroscopy (XPS), energy dispersive X-ray spectroscopy (EDS) and atomic absorption spectroscopy (AAS). The residual H2PtCl6 solutions were characterized using ultraviolet spectroscopy (UV). The polycarboxylic acid-functionalized silica supported Pt catalysts were used to catalyze alkene hydrosilylation and 1-hexene was chosen as a model alkene. The data indicated that the catalytic performance was strongly dependent on the properties of the polycarboxylic acid group bonded to the silica particles. Among them, DTPA-functionalized silica supported Pt (SiO2-DTPA-Pt) showed the best catalytic activity and reusability. Furthermore, some hydrosilylation reactions between other linear alkenes (1-heptene, 1-octene, 1-decene, 1-do-decene, 1-tetra-decene, 1-hexa-decene, 1-octa-decene, styrene or cis-hex-2-ene), or ring type alkenes (norbornene) with methyldichlorosilane could be catalyzed in the presence of these three Pt catalysts. Their high activities were more than 90%, and their selectivities were more than 99%, which were apparently better than homogeneous Pt catalysts. In addition, reactions with cyclohexene were also successfully catalyzed by the Pt catalysts. These results indicate that the polycarboxylic acid-functionalized silica gel supported Pt catalysts have potential value in industrial hydrosilylation reactions.

Sc(OTf)3-mediated silylation of hydroxy functional groups on a solid surface: A catalytic grafting method operating at room temperature

(Chemical Equation Presented) Surface paradise: Facile catalytic post-grafting of the surface of glass or indium tin oxide (ITO, see picture) with a variety of functional groups has been achieved. Methallylsilanes serve as the grafting reagent and the surfaces show remarkable chemical stability.